bluuebunny/crossref_metadata_2025 huggingface dataset:
The influence of Keruing Sawdust on the geotechnical properties of expansive Soils
Authors: Niyomukiza J B , Wardani S P R , Setiadji B H
Published: April 2020

Expansive soils have proved to be problematic to most Civil Engineering structures. Several researchers have tried to look for different materials which can alter the properties of these poor soils, and among them are lime and cement, which are expensive. Considering the vast quantities of sawdust produced in woodwork departments, they can be used as a secondary stabilizer, thus leading to sustainable technologies. Sawdust not only acts as a cheap stabilizer but also reduces the problem of environmental pollution caused by its poor disposal. This paper examines the geotechnical properties of expansive soil stabilised by Keruing sawdust. The sawdust used as partial replacement of soil in the ratio of 0, 3, 5, and 7% by the dry soil weight. The investigation was done by conducting laboratory tests on both stabilised and non-stabilized soils. The results showed that Keruing sawdust significantly improved the geotechnical properties of the soil by reducing the plasticity index from 64% to 36% at 0% and 7% sawdust, respectively. The unconfined compressive strength and California Bearing Ratio also improved at 3% sawdust + 97% soil. It concluded that Keruing sawdust, a waste material could be used as a cheap additive to the expansive grounds.
Decreasing Iron (Fe) Contaminant from Ground Water for Water Treatment Processed by Dielectric Barrier Discharge Ozone Generator
Authors: Putri R A , Oktiawan W , Syakur A
Published: April 2020

At the end of the decade, we have been entered to the bad condition for water quality. As well as we know that water is a primary demand for everyone. Ozone is a very reactive oxidant, and it can oxidize any parameters in water quality and then that parameters can be reduced. The principal of electrical discharge ozone generator can produce ozone when the compilation of electricity flow through the electrode, after that the discharge electrons will bound with free air which containing O2 so that O3 (ozone is formed). In the research, electrical discharge for ozone generator was made with high voltage variation are 12 kV, 13 kV, 14 kV. Next, ozone concentration that produced by this generator is contacted to the groundwater sample in Semarang which containing 5, 85 mg/litre iron and not yet required by World Health Organization International Standard for drinking water that is 0, 3 mg/litre. The result shows, the highest production ozone concentration by this generator is 33, 41 ppm and can decrease iron contaminant up to 23% from 5, 85 mg/litre to 4, 53 mg/litre. The lowest production ozone concentration is 2, 85 ppm, and can decrease iron contaminant up to 12% from 5, 85 mg/litre to 5, 15 mg/litre.
Strengthening Water Irrigation Management to Increase Water Usage Efficiency
Authors: Hanipah  , Hasibuan H S , Tambunan R P
Published: April 2020

The land-use change from agricultural to the industrial city took place in Karawang. Besides land conversion, transfer in water usage also increased for industrial needs. This is caused by poor water management in terms of distribution and control of water usage, mainly in the industrial and agricultural sectors. The area of irrigated land was reduced from 97, 037 ha (2009) to 90, 062 ha (2017), while the amount of dry land increased from 22, 063 ha (2009) to 46, 299 ha (2017). It showed that the lack of irrigation water management has an impact on the reduction of fertile paddy fields. Therefore, this research aims to formulate an action plan of water irrigation management. The study was conducted in West Telukjambe District, Karawang Regency. The method used stakeholder analysis. Data obtained from observation and interview data, irrigated land area, and the amount of irrigation water availability. The results showed the overlapping and missing roles of several stakeholders in charge of irrigation water management in West Telukjambe. Model simulations showed the increasing of irrigation serving area for additional management performance of each stakeholder. Therefore, the integrated management of irrigation systems needed to control the distribution and water irrigation efficient.
Aluminium Recovery from Water Treatment Sludge as Coagulant by Acidification
Authors: Ruziqna D P , Suwartha N , Moersidik S S , Adityosulindro S
Published: April 2020

Aluminium in water treatment sludge can be recovered as coagulants by acidification method. However, there are some factors that affect efficiency in recovering aluminium, such as stirring speed during acidification, pH, and sludge characteristic. This study aims to find the optimum acidification stirring speed in recovering alum and to evaluate the performance of recovered coagulant compared to a pure coagulant. Aluminium recovery is carried out by adding sulphuric acid until the pH of the sludge reaches 2.5. The acidic sludge is stirred for 30 minutes, with acidification stirring speed is varied from 240–720 rpm, and left for settling until the supernatant is formed. The supernatant was used as a recovered coagulant, examined using a jar test to determine the optimum dose, and compared with the pure coagulant. The results show that the optimum acidification stirring speed was obtained at 540 rpm, where mass balance shows aluminium recovery efficiency of 16.5%. The optimum dose for recovered coagulant was 25 ppm, with a turbidity reduction of 93.38% in jar test. While the optimum dose for pure alum was 20 ppm, with turbidity reduction of 93.26%. Though potentially reduced higher turbidity, the recovered coagulant has slightly lower quality than the pure coagulant, which required a higher optimum dose.
Removal of Physical Contaminants from Potable Water Distribution
Authors: Wicaksono A P , Zaman B , Budihardjo M A
Published: April 2020

Water distribution from water treatment plants may still contain some contaminants such as odour, sediments, discolouration, bacteria, viruses, and worms. This effluent is unhygienic and has potential hazards waterborne disease to human health such as skin disease, itching, influenza, typhus, and diarrhea. These diseases are caused by several contaminant parameters, both physical, chemical, and microbiological. Several methods can be used to treat water such as filtration which can reduce the concentration of contaminants carried or formed in potable water distribution so that it can conform the drinking water quality standards. Filtration has many media types such as activated carbon, greensand manganese, ferolite, polypropylene, yarn, and ceramic. The advantage of activated carbon is low cost, high efficiency, and easy to maintain. Effects of water purification show that the filtration from activated carbon combined with polypropylene filtration processes has significant effects and very effective to reduce physical contaminant. It can reduce 60 – 80 % contaminants, depends on the concentration of the contaminant. This article is a review of some results of the research process.
Value of the Ash Opacity on the Performance of Incinerator as a Result of System Variations
Authors: Muhammad F I , Gita D I , Pertiwi D , Farhah A D , Aulia F R
Published: April 2020

About 15% of the total population of Semarang City does not get any waste management service. The lack of the infrastructure for collecting and processing waste, transportation, and disposal of the waste in the unserved area is believed to be the causes of the problem. As a result, incineration becomes the solution chosen for some people. Unfortunately, incineration has adverse effects. The ash produced by the incineration contains pollutants. To reduce the ash, the pollutant control devices that can be applied to the incinerator are needed. It is also necessary to monitor air quality emissions to find out the ash opacity value of burning material. The modification into two variations was carried out to determine the performance of the incinerator. The first system variation uses the principle of spreading water on the ash produced by the incineration. While the second system variation uses the principle of passing the ash in the submerged water. The composition of the waste burned in the incinerator was 38.115% leaves, 3.458% branches, and 20.475% food scraps. The measurement of the opacity value is done at the inlet and outlet of the incinerator.
IDF Curve Patterns for Flood Control of Air Lakitan river of Musi Rawas Regency
Authors: Syarifudin A , Destania H R
Published: April 2020

The problem of flooding in a Watershed (Basin) or region is caused by natural conditions, such as relatively high rainfall, sloping topographic conditions and tidal influences. Human behaviour is often also the cause of flooding problems, such as the location of settlements that are in the river borders or industries that dump waste directly into river bodies. Besides the problem of flooding can also be caused by a not well-organized river/drainage system or lack of maintenance of an existing river/drainage system. Furthermore, social problems include increasing demands for the availability of new and good residential environmental infrastructure. To overcome the problems as described above, before an activity such as build in a left/right inspection road planning, is need analysis rainfall data and make patterns of Intensity Duration Frequency (IDF) Curve to an analysis of hydraulics in determining flood discharge plans. The results showed that the discharge of river capacity of Air Lakitan river was 482.74 m3/seconds, so the river is unable to hold water flow.
Batik Home Industry Wastewater Treatment Using UVC/Ozon Oxidation Method: Case Study in Cibelok Village, Pemalang, Indonesia
Authors: Larasati D A , Alkian I , Arifan F , Sari S R
Published: April 2020

Batik is one of Indonesia’s cultural heritages that spread across various regions with their unique characteristics. One of the regions that have batik industries is Pemalang Regency. However, batik industries also contribute to liquid waste. Wastewater containing pollutants such as waxes, resins, dyes, and binders such as silicates produce high concentrations of Biochemical Oxygen Demand (BOD) and vibrant colors. There are still many batik enterprises that discard wastewater directly to the environment without being processed first. This study aims to degrade Remazol Black B and Biochemical Oxygen Demand (BOD) dyes in batik liquid waste to contact time variations 0, 15, 30, 45, 60 minutes with UVC-Ozone oxidation methods. The Ozone-UVC method is an alternative method for decolorization and degradation of BOD. The dye degradation test was carried out using Spectroquant UV/VIS Spectrophotometer, and the BOD degradation test was carried out using Dissolved Oxygen - DO Meter AZ-8403. The result shows that the BOD degradation at batik wastewater was from 190.17 – 96.83 mg/L. Visually, the increase in treatment time makes the sample look clearer (decolorization), evidenced by the sample image and decreased absorbance results.
Treatment of Leachate using Electrocoagulation Technology; Study case in Jatibarang Landfill-Semarang City
Authors: Oktiawan W , Priyambada I B , Ardhianto R
Published: April 2020

Leachate are dominantly recalcitrant organic pollutants, and thus before its discharge to the environment, leachate must be treated. In this study, electrochemical processes, using aluminum and iron electrode in electrocoagulation, were used to remove non-biodegradable compounds in leachate. The electrocoagulation was conducted as main treatment at flow rate 20 ml/minutes and 40 ml/minutes and constant voltage of 5 volt, and 10 volt. The results showed that aluminum electrocoagulation was effective to remove organic pollutant (measured as COD) 54, 08% (2, 5 g) using 10 volt and flow rate 20 ml/minutes, respectively, while maintaining its initial pH condition at 5, 7-6, 6. Applied voltage 20 ml/minutes using iron electrode provides results 33, 7% (1, 9 g) removal of COD, by using Fe electrode provides increasing pH 6, 0 to 9, 1. This implies that higher voltage and minimum flowrate at aluminum and iron electrode was likely to affect higher COD removal than minimum voltage and higher flowrate. Overall, electrocoagulation processes can be used as alternative method for the removal of recalcitrant organic pollutants of leachate in Jatibarang Landfill, Semarang City.
Retrofit Plans on Building Envelopes as Energy Efficiency Efforts: A Green Building Concept
Authors: Aurora D M , Hasibuan H S
Published: April 2020

Buildings with all their activities use considerable energy in the urban environment. Environmentally friendly buildings concept becomes essential with energy conservation. The application of this concept to existing buildings can be made through retrofit, by carrying out a series of improvements or changes to facilities and elements, to reduce energy consumption. This research was conducted to investigate how much energy savings will be generated through the simulation of several retrofit plans on the building envelope. The model in this study is the public office building, Jakarta Provincial Government’s office. The projects are carried out by simulating the reduction of Window Wall Ratio, the addition of shading, and the replacement of glass material. The analytical method used is energy simulation with sensitivity analysis using the Autocad Greenbuilding Studio application. From the simulation, the results showed that retrofit plans proved to be able to save energy use in the building by 18 - 22%. This simulation also affects the savings in operational costs.
Detail Engineering Design (DED) Domestic Wastewater Distribution and Treatment System in Sampangan, Bendan Ngisor, Petompon, Gajahmungkur District
Authors: Junaidi J , Hardyanti N , Oktiawan W , Rohmah A S , Wulansari R
Published: April 2020

Environmental sanitation is one of the programs in the International Sustainable Development Goals (SDGs) 2030. Semarang Mayor Regulation No. 42 of 2013 on Semarang City Wastewater Masterplan has classified the domestic wastewater management system into two types, off-site and on-site operations. Gajahmungkur district is included in the off-site system. Sampangan, Bendan Ngisor, and Petompon are part of Gajahmungkur district that directly bordered by Kaligarang river. Most residents dispose of greywater into water bodies. This paper aims to present the results of the Detail Engineering Design (DED) domestic wastewater distribution and treatment system. The method of sampling wastewater used SNI 6989: 59: 2008. Based on the results, TSS values 236 mg/L, COD 331 mg/L, and BOD 116 mg/L. This result shows that the domestic wastewater produced is still above the Minister of Environment & Forestry Regulation No. 68 of 2016. The installation of wastewater used for the Gajahmungkur district consists of Grit Chamber, Collecting Wells, Anaerobic Baffled Reactor, Settling Tank, and Chlorination Tank. The type of domestic wastewater distribution system is a shallow sewer. This plan is divided into 11 blocks and serves a population of 20, 097 people. The planned budget for the costs required to make this plan is IDR35.016.315.000, 00.
Holistic Water Management at the Community Level, Case Study Jabung District, Malang Regency, Indonesia
Authors: Ari I R D , Rukmi W , Elya N
Published: April 2020

Access to safe water as a basic infrastructure is still a major problem throughout the world, and it is the main concentration to be solved as stated in SDGs pillars 6 and 9. Availability access to basic needs such as infrastructure of water is also one important homework to deal with for the Indonesian government along with the Universal Access 100-0-100. The research aim is to measure the Water Poverty Index (WPI) through the 5-component to propose a poverty eradication strategy of the water infrastructure at the community level. Jabung District in Malang Regency is chosen as the case study, wherein at about 33, 19% and 16% of households are the receiver of Raskin (Poor Rice) program and Program Keluarga Harapan (Family Hopes Program) – the poverty alleviations programs in Indonesia. Both field observation and depth interviews are conducted towards 548 heads of households at the compiling data. The WPI measurement indicates that 1 of the 15 villages have the low safe value of WPI. Among the fifth component, the environment shows the worst scale of the WPI whereby 14 villages have a value of 49, 16 (unsafe value), so integrated water management strategy by incorporating water balance for both domestic and non-domestic purposes is indispensable.
Identification of Potential Uses of Building Information Modeling (BIM) for Construction Supply Chain Management: Preliminary Studies
Authors: Sholeh M N , Nurdiana A , Setiabudi B , Suharjono
Published: April 2020

The 4.0 industrial revolution in all fields encouraged the construction industry to make technological-based innovations. Building Information Modeling (BIM) is one of the tools in advancing construction technology today. On the other hand, supply chain construction continues to grow and becomes important in project management. This study aims to identify the potential use of BIM in construction supply chain management. Preliminary studies on several projects in Indonesia were carried out as identification methods. The Delphi process was used to obtain the data described in the Strength, Weakness, Opportunity, and Threat (SWOT) analysis. As a result, BIM has the potential to be applied to the construction SCM with several considerations. There are 5 trends in strength, 4 trends in weakness, 5 trends in opportunity, and 3 trends in threat. Trends in strength and opportunity are used as indicators in the analysis of impacts. BIM as advanced technology is the highest indicator and the lowest trust between stakeholders in the application of BIM in the construction supply chain. In addition, harmonization between BIM actors is needed: the Ministry of Public Works, contractors, suppliers and academics in the supply chain.
Design Optimization of Water Distribution Suburban Area in Mranggen, Semarang, Indonesia
Authors: Rezagama A , Handayani D S , Zaman B , Putra R R S
Published: April 2020

Water losses in water distribution systems are one of the problems that occur in water distribution systems. Water losses can be caused by physical losses or leakage. Leakages can be caused by technical and non-technical factors. The existing condition of the water distribution network in subdistrict capital Mranggen, Demak Regency has not been able to drain water continuously for twenty-four hours in Batursari and Kebonbatur Sub-Districts. The optimization of the drinking water distribution network is carried out by evaluating the network system using Epanet software and then doing the rehabilitation design and network development according to future developments. The results of the analysis of the epanet model show that the use of deep well pump systems directly distributed to customers results in inefficiencies from pressure. Access to the safe drinking water needs to be prepared first from the availability of raw water, treatment units to the distribution network. The construction of clean water transmission pipeline system is prepared to go into different zoning from the initial network. Zoning pumping network systems will increase pressure significantly and reduce leakage through control.
Community Movement for Sustainable Use of Natural Resources: Case study of North Kendeng Mountain Area, Central Java, Indonesia
Authors: Hadi S P , Purnaweni H , Prabawani B , Hamdani R S
Published: April 2020

North Kendeng Mountain has abundant limestone potentially utilized for materials of cement, cosmetics, paint, and other commercial products. This area is also a storage for water resources widely used for household and irrigation for local people. The conflict between government and investors on one side preferring this area for utilization for commercial uses and local people supported by influential people and academician choosing it for conservation. Local people pioneered by Sedulur Sikep (Adat or Traditional Community) form a Community Network for Caring North Kendeng Mountain (JMPPK) mobilizing people through cultural events, rally, demonstration, dialog, discussion, and lobby. Sedulur Sikep believes that they must treat the Earth as a mother providing everything for the human being. Human nature must adequately address the Earth. This paper observes the development of conflict over water resources, the way JMPPK defends their right over natural resources. The type of research is descriptive analysis. The data collection techniques include an informal interview, observation, and a literature review. The data is analyzed qualitatively. So far, the interest and aspiration of local people, both expressed through Strategic Environmental Assessment (SEA) studies and their own opinion aired the government, has not incorporated a variety of events at the revision of spatial planning. They are persistent and continue struggling along with their counterparts. It is required a dialog among relevant stakeholders regarding the area for utilization and conservation to create sustainable management.
Mental Model Perspective of Multi-Sector Industrial Symbiosis in Indonesia Based on Waste Exchange Strategy: Introductory Study
Authors: Pradhita O , Azhar H N , Laksana M P , Surbakti N N
Published: April 2020

Indonesia, as a developing country, has a long-term national vision to become a stable industrial country which will achieve in 2035. This commitment showed by an increase in industrial sector contribution to Indonesia’s GDP, which is targeted to reach 30% in 2035 compared to 20.97% contribution to GDP in 2015. The global competition and current trends also become challenges for the Indonesian industry sector, where nowadays, international markets more prefer eco-labeled products than conventional ones. The green industry concept, which prioritizes the efficient use of resources sustainably to improve environmental performance, could be the answer to tackle both problems. Green industry development can be done through the concept of industrial symbiosis by implementing a waste exchange strategy. This strategy is applied by reusing waste as raw material for other industries. This study examines industrial symbiosis potential practices in Indonesia using waste exchange strategies in various industrial sectors through a mental model approach. The mental model structure in this study was built by exploring possible synergies between industries through byproduct similarity. From the psychological model, we uncovered nine waste categories as vital nodes in waste-resource networks. This preliminary study may serve as additional industrial planning guidance for the Indonesian government and other related stakeholders in the green industry development
Quantitative Risk Analysis for Oil and Gas Projects: A Case Study
Authors: Hatmoko J U D , Khasani R R
Published: April 2020

Delays have been identified as one of the significant risks in oil and gas projects. A sound risk analysis is, therefore, one of the critical factors for the success of the projects. The aim of this research was to measure the impact of delay risks on the completion time of an oil and gas project in Indonesia as a case study. Data of relevant delay risks were initially collected from literature reviews and observations on project documents and finalized through interviews with key respondents of the project. A monte-carlo based simulation software was used to simulate 28 delay risks identified and applied to the 34 project activities. This research found a probability of less than 1% for on-time project completion according to the baseline schedule (366 days). It was also projected that the project duration could be extended by 10.6% (405 days) and 14.2% (418 days) with 50% and 80% probabilities, respectively. The sensitivity analysis indicated that the most influential activity on project delays was the tubular delivery, and the risk delay with the most significant impact to project delays was the delay of long-lead item delivery. This research showed the mechanism of incorporating delay risks into relevant project activities, and the findings allow a better understanding of stakeholders to develop appropriate risk mitigation strategies.
Pollution Model of Batik and Domestic Wastewater on River Water Quality
Authors: Rezagama A , Sutrisno E , Handayani D S
Published: April 2020

Human activities create waste that can affect the river’s water quality physically, chemically, and biologically. Waste pollution from non-point sources is difficult to control where it spreads with a fairly even flow of discharge. Some watersheds in Indonesia have specific non-point source sources of pollution such as batik waste originating from Small and Medium Enterprises (SMEs). The research case study is in an urban area in the segment of the Premulung river segment of Solo City. This study aims to explain the effects of various pollutants on water quality, such as batik waste and domestic waste. Premulung River water samples were taken at 13 points from non-point sources and 10-point sources. The prediction model uses Qual2kw software. The results showed that the flow of batik waste from SMEs affected water quality in the COD parameters and the colour changed temporarily and quickly along the river channel. Rivers which is polluted by batik waste have the characteristics of dark water with high organic matter content. At the downstream river, water quality improves because batik waste will settle to the bottom of the river at a certain distance.
The Result of an Analysis to Determine the Highest International Publication based on Food-Agriculture in Indonesia
Authors: Hakim A , Jumaryatno P , Fauzy A , Raharjo A W
Published: April 2020

Scientific research on mapping the strength of Food-Agriculture focus research BASED on the 2014-2018 Scopus data has been done. The Ministry of Research Technology and (KemenristekDIKTI), especially the Directorate General of Research and Development (RISBANG) has a significant role in improving the quality of higher education. One way to improve higher education quality is through mapping the strengths of research. The advantage of the study that forms the basis of this mapping refers to RPJPN 2005-2025 and RPJMN 2015-2019, which focuses on Food-Agriculture. This study used three steps methodology; (1) Data were obtained from subsequent Scopus data year 2014-2018 from KemenristekDIKTI in scientific publication focus on Food-Agriculture, (2) identifying Scopus data based on sub-focus of Food-Agriculture, (3). Data analysis using frequency distribution, (Determine the range of data, determine the classes, and determine the class interval). The Result Shows that 94.9 % (353) of 372 universities published journal indexed Scopus on range 1-59 journal publications within five years. IPB (Bogor Agricultural Institute) has the most journal publications of Food-Agriculture focus.
Higher Education with the Most Publication in Focus Area of Basic Science using Frequency Distribution
Authors: Fauzy A , Chabib L , Kasam  , Mustangimah  , Nurlette F
Published: April 2020

This study investigated scientific research on determine the strength of Basic Science focus research BASED on the 2014-2018 Scopus data. The Ministry of Research Technology and (Kemenristekdikti), especially the Directorate General of Research and Development (RISBANG), has a significant role in improving the quality of higher education. One way to improve higher education quality is through mapping the strengths of research. The advantage of the study that forms the basis of this mapping refers to RPJPN 2005-2025 and RPJMN 2015-2019, which focuses on Basic Science. This study used three steps methodology. First, secondary Scopus data year 2014-2018 from Kemenristekdikti in scientific publication focus on Basic Science were collected. Second, Scopus data based on sub-focus of Basic Science were identified. Last, we analyzed the data using frequency distribution, which consist of determining the range of data, the class number, and the class interval). This study concluded that 96.4 % (611) of 634 universities published journals indexed Scopus on range 1-136 journal publications within five years. UI (University of Indonesia) has the most journal publications of Basic Science focus.
Descriptive Analysis Using a Frequency Distribution to Determine the Highest Number of Publication In Focus Area of Defense and Security
Authors: Sutrisno N , Ashadi W , Tanjung H F , Tyas A K
Published: April 2020

This study investigated scientific research on mapping the strength of Defence and Security focus research BASED on the 2014-2018 Scopus data. The Ministry of Research Technology and (KemenristekDIKTI), especially the Directorate General of Research and Development (RISBANG), has a significant role in improving the quality of higher education. One way to improve higher education quality is through mapping the strengths of research. The advantage of the study that forms the basis of this mapping refers to RPJPN 2005-2025 and RPJMN 2015-2019, which focuses on Defence and Security. This study used three steps methodology; (1). Collecting Data were collected from subsequent Scopus data year 2014-2018 from KemenristekDIKTI in scientific publication focus on Defence and Security, (2) identifying Scopus data based on sub-focus of Defence and Security, (3). Data analysis using frequency distribution (Determine the range of data, determine the classes, and determine the class interval). This study concluded that 90.4 % (75) of 83 universities published journals indexed Scopus on range 1-6 journal publications within five years. UI (University of Indonesia) has the most journal publications of Defence and Security focus.
Mapping the Strength of Research in the Focus Areas for Maritime based on SCOPUS 2014-2018
Authors: Sriyana J , Kasam  , Ashadi W , Sartika D , Syahputra D S A
Published: April 2020

This study investigated scientific research on mapping the strength of maritime focus research BASED on the 2014-2018 Scopus data. The Ministry of Research Technology and (Kemenristekdikti), especially the Directorate General of Research and Development (RISBANG), has a significant role in improving the quality of higher education. One way to improve higher education quality is through mapping the strengths of research. The power of the study that forms the basis of this mapping refers to RPJPN 2005-2025 and RPJMN 2015-2019, which focuses on Maritime Affairs. This study used three steps methodology; (1). Collecting data was collected from secondary Scopus data year 2014-2018 from Kemenristek dikti in scientific publication focus on Maritime affairs, (2) identifying Scopus data based on sub-focus of maritime affairs, (3). Data analysis using frequency distribution (Determine the range of data, determine the classes, and determine the class interval). This study concluded that 91.1 % (154) of 169 universities published journals indexed Scopus on range 1-19 journal publications within five years. UNDIP (Diponegoro University) has the most journal publications of Maritime Affairs focus.
Effect of Company Characteristics and Corporate Governance on the Quantity of Environmental Disclosure
Authors: Wahyuningrum I F S , Yanto H , Oktavilia S , Setyadharma A , Yulianto A , Triasi A
Published: April 2020

The aim of this study is to examine the effect of companies’ characteristics and corporate governance on the quantity of environmental disclosure. The population of this study was listed companies on the Australian Securities Exchange (ASX) in the year of 2017. This study used the top 100 companies on the ASX by the highest market capitalisation as samples. All companies included and represented on the ASX 100 index and used multiple regression analysis as analysis technique. The results indicates that company size, industrial type had a significant positive effect on environmental disclosure. This study also concludes that companies that fall into the category of sensitive industry disclose more environmental information than companies that fall into the category of non-sensitive industries. Furthermore, this finding can help regulators draft appropriate laws for the industry regarding specific environmental disclosure practices and conduct environmental performance assessments on companies, to assess the extent to which companies have been responsible for the environmental impacts caused by their operations.
Empowering the Community of Dimembe Village Through the Application of Cultivation and Diversification Technology of Papaya Fruit Plants
Authors: Maramis A A , Yalindua A , Mege R A , Opit H V
Published: April 2020

Dimembe Village has been famous for a long time as a centre for export quality papaya production. However, last few years papaya has papaya prices have decreased. Farmers choose not to pick papaya fruit in the garden because the cost of picking and loading is not comparable to the selling price. Priority problems experienced by most farmer groups in this village are: nursery, planting, fertilizing, and maintenance technology are still conventional; also variations in post-harvest product diversification are still lacking. To answer these problems, the community service program, Program Pemberdayaan Masyarakat Unggulan Perguruan Tinggi (PPMUPT) scheme has been carried out in 2019 (the first year, from a three year plan). The method of conducting the activities includes technology dissemination, training, application, and mentoring for papaya cultivation and diversification. The application of science and technology of cultivation includes, land management, seed and plant preparation, fertilizing, and maintaining, while diversification includes making fruit chips using a vacuum frying machine. The implementation of PPMUPT in the first year had a positive impact on the farming community in the form of increased knowledge, attitudes, and skills in the cultivation and diversification of fruit crops.
The Application of Drying Technology Utilizes Integrated Energy Sources to Process Various Agricultural Products for the People of the Border Area in Talaud Islands Regency
Authors: Mantiri J , Maramis A A , Mege R A , Ticoh J D
Published: April 2020

Talaud Islands is a regency in North Sulawesi Province, which is the northernmost region of the Republic of Indonesia. The condition and geographical location make this area included in the category of frontier, outermost, and disadvantaged regions. Consequently, people of this region experience various limitations in utilizing local resources to meet their daily needs. A community service activity, Produk Teknologi yang Didesiminasikan ke Masyarakat (PTDM) scheme has been carried out in this area with the aim of applying technology that utilizes integrating sources of energy in the form of solar cells, gas, and closed furnaces in the processing of various agricultural food crop products (corn, soybeans, and beans) and plantations (nutmeg and cloves). The approach method applied in the implementation of this activity is a combination of pilot project methods and the application of technology products, especially cabinet-shaped dryer technology that utilizes integrated energy sources for postharvest processing of agricultural food crops and plantations. The technology resulting from the research and development of the implementation team can be applied to meet the needs of the people of the Talaud Islands. The following impact arising from PTDM activity is an increase in regional potential and community participation.
Application of reproduction and production technology of goat livestock to improve living standards of the people of Dayow Village, Pinolosian Timur Subdistrict, Bolaang Mongondow Selatan Regency
Authors: Mege R A , Maramis A A , Paus J , Mantiri J
Published: April 2020

Dayow Village has abundant and potential local resources (such as livestock and agricultural plantations) but has not sufficiently increased the income and welfare of the community due to the isolation of the region which has implications for the limited variety of accessibility of community life. A Community Service Program, The Application of Appropriate Technology Program (PPTTG) scheme has been held in Dayow Village with the aim to 1) increase community knowledge and skills in mastering the technology of reproduction and production of goat livestock, and in processing livestock waste into solid and liquid organic fertilizer; and 2) increase community economic income. The method used as a form of community empowerment in Dayow Village is a combination of methods of application of sciences and appropriate technology of superovulation to improve the reproduction of goats. The results of this activity show that the superovulation technology products, which are the results of research and development of the implementation team, can be applied to meet the needs of the people of Dayow Village. This activity can increase regional potential and community participation.
Integrated Biomaterials Engineering of Oil Palm Fibres and Microalgae for Bioenergy, Environmental Remediation, and Conversion into Value-Added-Products
Authors: Abdullah M A , Bahamid A A A , Alshajrawi O M S , Nazir M S , Tahir Z
Published: April 2020

The 2030‘s core agenda for 17 Sustainable Development Goals aims to bring systems thinking and holistic solution to ensure that progress for People and Profit do not side-line planet as the major stakeholder. Discussion on the Economics issues should bring in the Environment and Socio-cultural diversity dimension as equal components. This may necessitate a complete revamp of human activities such that efforts to tackle famine and poverty and the emerging infectious diseases are not divorced from addressing the problems brought about by climate change and the destruction of eco-systems and habitat for wildlife. The focus of this review article is to highlight research and development in integrated biomaterials engineering of oil palm fibres and microalgae for sustainable bioenergy production, environmental remediation and conversion into value added-products via integrated palm oil milling processes and algal biorefinery. Eco-friendly extraction of cellulose and the development of composite materials for different applications will be highlighted. The use of microalgae for bioenergy, effluent remediation and the utilization of microalgal extracts in anticancer agent formulation will be discussed. This hopefully could bring forth insights towards collaboration among the policymakers, government agencies, industries and academics to tackle the immediate and pressing problems facing the world today.
Spatial Analysis of Driving Factors on Land Cover Change’s Clusters in West Java Province
Authors: Ajie I S , Deliar A , Virtriana R
Published: April 2020

The study of land cover change as a phenomenon is necessary to do in order to understand global environmental change. With a cluster, the pattern and concentration of land cover change can be indicated, so that decisions can be made on target. The understanding of land cover change can be improved by identifying the factors affecting it. Land cover change depends on the physical and socio-economic characteristics of a region. Thus, the driving factor of land cover change in each region is different. This research is conducted to identify the driving factors on West Java Province’s land cover change based on it is land cover change clusters. The relation between each factor and land cover change can be evaluated using the binary logistic regression, which is a data analysis method used to find a relationship between a binary response variable (y) and predictor variable(s) (x). In this case, the land cover change, as a dichotomous phenomenon, acts as the response variable, while the driving factors act as the predictor variables. The result of this study indicates that in general, the distance to the nearest central business district, as a factor, is the dominant driving factor of land cover change on West Java Province.
Valuation of Coastal Ecosystem Services: A Case of Tangerang Regency, Indonesia
Authors: Asrofani F W , Hasibuan H S , Mizuno K
Published: April 2020

The north coast of Tangerang Regency, which borders directly with the Java sea, has great potential to be developed and made several coastal areas like the center of economic growth. Coastal Tangerang Regency also has several ecosystem components such as mangrove ecosystems and sand beaches ecosystem, which are currently degradation. Development planning with an ecosystem service approach is essential to understand as an effort to overcome trade-offs between development and the environment. This study aims to assess the Tangerang Regency coastal ecosystem services. The method used is the total economic value approach. Ecosystem services that will be analyzed are mangrove ecosystem services, and sand beach ecosystem services that are on the coast of Tangerang Regency. The data used is secondary data in the last five years (2014-2019). The results showed that the total value of coastal ecosystem services in the Tangerang Regency was IDR 32.610.028.060 per year or the US $ 2,29 million. This value can be considered to protect coastal ecosystems and increase the welfare of coastal communities that depend on ecosystem services. Environmental, economic, and social aspects need to be considered together to create a comprehensive development planning unit.
Regional Model Development of Plastic Waste Monitoring: Basic Framework from Population and Public Market in Central Java-Indonesia
Authors: Maryono M , Seruyaningtyas K , Roynaldi A D , Hastuti C M , Rahma N N , Sudarno  , Hadiyanto
Published: April 2020

Recently, Intention to accelerate SGDs achievement and also mitigate climate change impact concerning to regional health, increasing significantly. One of the regional health issues for those is concerning to impcat of plastic waste. Event though plastic is one of the principal materials in the regional market and industry, but then plastic waste arise to be principal problem for regional environmental health indicators since they linked living from land to coastal and to oceans. Many tons of plastic from land accounted enter to costal and or ocean then attack to all living thinks. Moreover they may be able to return to the land as microplastic consumed by fish. Today, quick respond to manage plastic waste have a high assosiation with effort to manage green food cycle as of covering basic regional food and cereal cycle. This study goal is to provide basic model for regional plastic waste degree monitoring. The model is developed by using “online” population data from regional statistical data and number of public market. GIS tools is used to degree of plastic waste in spatial map. For detail, Central Java Provice was then selected for model assessment. To monitor the plastic waste generation in spatial pattern, online data population for year 1990, 2000, 2010, 2018 and number of traditional market was utilized. The study calculated that the highest degree of plastic waste generation with population-base approach for year 2018 is located in Brebes Regency with estimated 161.53 Ton per day. Semarang city contributed 160.04 Ton per day and total plastic waste generation in Central Java is estimated 3, 090.38. According to the public market location, this study founded that Surakarta, Semarang, Pekalongan and Tegal clasify as high degree of plastic waste ggeneration.
Disaster Risk Perception and Household Disaster Preparedness: Lesson Learned from Tsunami in Banten
Authors: Akbar Z , Suryaratri R D , Tri Y , Gumelar G , Ariyani M
Published: April 2020

This research aims to determine the effect of disaster risk perception on disaster preparedness for families on the coast of Sumur district, Pandeglang, Banten. Participants in this research are families who live in coastal area consisting of father or mother in each family. Total respondents were 174 people, all of them were victims of Banten tsunami. The measuring tool used in this research is the disaster risk perception that will be measured using the Risk Perception Belief for Disaster measurement tool that was used in the National Health Survey Risk Perception (NSHRP) in 2012 and further developed by Yong (2017). Disaster preparedness will be measured using instruments based on the grievances that have been put forward by Indonesian Institute of Sciences (LIPI) and Unesco regarding disaster preparedness. This research approach is a quantitative approach using the test of influence. The results found that there is positive influence between disaster risk perception on disaster preparedness on families in the coastal Sumur district (F = 28.23; p = 0.000 <0.05). The effect of Disaster Risk Perception on Disaster Preparedness is 14.1%. There is a significant influence between the disaster risk perception to disaster preparedness on the family in the coast of Sumur District, Pandeglang. If the disaster risk perception is high, the disaster preparedness will also increase. The implications of the results of this research are research subjects who have a high disaster risk perception, meaning that the community has the value of trust that the place they live has a risk of natural disasters and finally feels they have high responsibility, control, acceptance and response to disaster risk, so that this will encourage the community to be able to carry out disaster preparedness.
Studies of Carrying Capacity and Zonation at Menjer Lake, Central Java Using A Multidisciplinary Approach for Sustainable Utilization
Authors: Subehi L , Fakhrudin M , Apip  , Ridwansyah I , Yoga G P , Rustini H A , Samir O , Ali F , Wahyono A , Suwardi S
Published: April 2020

Tropical lake is one of the unique ecosystems which are functioning in both ecological and economic services. Telaga Menjer as a volcanic lake, has strategic values as a hydropower plant, tourism, agriculture, capture fisheries and floating net cages farming. It influenced a degradation of water quality and quantity, nutrient enrichment and exceed the carrying capacity. Telaga Menjer has a catchment area of around 2.27 km2 with a lake surface area of 0.61 km2.The purpose of this research is to investigate the characteristic of lake to know the carryng capacity and utilization zone with a multidisciplinary approach. For measuring its depth, the Hondex PS-7 portable depth sensor is used with a maximum depth of 80 m. The water quality parameters stratification were measured by logger version CTD profiler with a depth interval of 1 m on July 2019. The results showed that DO values were observed until the bottom of lake (45 m). Moreover, Total Nitrogen (TN) was very high concentration, indicating more fertilizer from agriculture. Meanwhile, lower concentration of pesticides were obtained. Next, the land use management, economic values and social carrying capacity of Talaga Menjer should be elucidated in order to maintain the sustainability of the lake.
Evaluation of Raw Water Availability Kaliboyo River in the Effort for Drinking Water Meeting in the District Batang and the City Pekalongan
Authors: Syafrudin S , Sarminingsih A , Biantoro K
Published: April 2020

One form of delivery of SPAM which is currently running ie Drinking Water Sector Development in Central Java province. One construction site is located in the city of Pekalongan and Batang. With limited sources of raw water through a breakthrough in the region Pekalongan potential utilization of raw water in Boyo Sungai Batang located in the region to meet the needs of drinking water services for the city of Pekalongan and some regional areas in Batang.The purpose of this study is to describe and analyze the fulfillment of raw water for the construction of Pekalongan and Batang, check the availability of raw water in the river Boyo, knowing how much discharge that could be used to help meet the needs of drinking water services in Pekalongan and Batang and effort -upaya for the fulfillment of the raw water continuously in an effort to help meet the drinking water. To check the availability of water in this study FJ Mock method is used to simulate the discharge Q90 for 17 years for irrigation and drinking water needs. Needs Batang and Pekalongan is equal to 450 liters / sec with the distribution of discharge 200 liters / sec for Batang and 250 liters / sec to Pekalongan.there is still a deficit of 1.5 months for raw water supply. In fulfillment of the necessary raw water so that continuous pitcher / reservoir.