bluuebunny/crossref_metadata_2025 huggingface dataset:
The Use of Steel Slag as Substitution of Coarse Aggregate on Indirect Tensile Strength and Marshall Properties of AC-WC
Authors: Nugraha A A , Fauziah M , Subarkah
Published: December 2021

High traffic levels on road can causing road damage, especially cases of permanent deformation and fatigue cracking. One solution is to utilize waste of material, such as steel slag as coarse aggregate and polymer modified asphalt as binding material. This paper explores experimental laboratory investigation on the use of steel slag on Marshall characteristics and indirect tensile strength of AC-WC mixture by using Starbit E-60 and Pen 60/70. Laboratory works begin with physical testing of material, then, finding the optimum bitumen content (OBC) for each type of the mixtures. Finally, Marshall Standard and indirect tensile strength (ITS) at OBC were conducted. Results shows that the use of steel slag for AC-WC mixture are proven to improve resistance to permanent deformation as well as fatigue cracking. Substitution of steel slag for coarse aggregates were able to increase Marshall stability, Marshall Quotient and indirect tensile strength (ITS) of the mixtures, however, it slightly decreases the volumetric performance of mixture, such as voids in total mixes become higher and voids filled with asphalt as well as voids in mineral aggregates tend to decrease.
An Overview of Behaviour of Concrete with Granulated Blast Furnace Slag as Partial Cement Replacement
Authors: Cahyani R A T , Rusdianto Y
Published: December 2021

Ground granulated blast furnace slag (GGBFS) is one of green construction materials that held benefits in producing sustainable and high-quality concrete. GGBFS is commonly used as supplementary cementitious materials in blended cement to reduce the need for Portland cement in mortar or concrete production. An overview of the utilization of GGBFS as partial cement replacement with regards to mortar and concrete properties is presented in this paper. The fresh properties of GGBFS mixes addressed include workability and setting time. While compressive strength, porosity, shrinkage, and resistance to sulfate attack are the reviewed hardened properties. Overall, various studies showed that incorporating GGBFS in mortar/concrete mixes significantly improves mortar/concrete properties depending on the GGBFS replacement ratios. It is anticipated that this review will provide valuable information for a better understanding of the fresh and hardened properties of GGBFS-blended mortar and concrete. Moreover, as there is a growing interest in optimal utilization of GGBFS in Indonesia’s cement and construction industry, this review paper intended to raising awareness of GGBBFS utility regarding its benefit for sustainable construction.
Response analysis of a multi-story building structure with a variety of horizontal irregularities and shear wall geometries
Authors: Prathama A H , Teguh M , Saleh F
Published: December 2021

The growing growth of human activities has led to changes in housing patterns in urban areas. The land crisis in urban areas has made land prices uneconomical, so buildings are designed vertically. One solution to resist earthquakes in multi-story buildings is to add a shear wall structure with the proper profile and layout. Shear wall designs with variations influence the base shear, drift ratio, lateral deflection, and story drift patterns. This study presents the structural response comparison of buildings against variations in the profile and layout of shear walls subjected to earthquake loads. Force Based Design method utilizing the response spectrum approach was adopted in the analysis and carried out using SAP200. Six structural models comprise a frame without shear walls, three L-profile shear walls, two I-profile (straight) shear walls. The simulation results of the overall structural models show that the profile and layout configuration of shear walls in the frame structure of a multi-story building correlates directly to the performance of base shear, drift ratio, and story drift with relatively comparative conditions.
Potency of Indigenous Bacteria of Mt. Merapi, Arthrobacter chlorophenolicus for Chromium (VI) Bioremediation
Authors: Lathifah A N , Asmara A A , Alfisyahr F A N , Maziya F B
Published: December 2021

Chromium (VI) in the production process, such as textile, tannery, and electroplating industry, produce hazardous waste when disposed of directly into the aquatic environment. Several chromium pollutions cases, not only in water but also in the aquatic organism, occurred in some regions in Indonesia. Various methods can reduce the Chromium (VI) waste. One of them is the biological method by employing such kinds of bacteria. Arthrobacter chlorophenolicus is a pioneer bacterium of Mt. Merapi, which can survive in the minimum conditions of the bacterial primary nutrients, carbon, and nitrogen. This study aims to investigate the ability of A. chlorophenolicus to remove Cr (VI) at various concentrations. The research was carried out by growing the A. chlorophenolicus into two nutrient media conditions, minimal and rich-nutrient media containing different concentrations of Cr (VI) (5, 10, 20 ppm) for eight days. The results showed that the A. chlorophenolicus were grown on both minimal and rich-nutrient media. The A. chlorophenolicus could reduce for about 80% of 10 and 20 ppm chromium in eight days. Our results indicate that A. chlorophenolicus, the pioneer bacteria of Mt. Merapi, has a grand promise for use in Cr (VI) remediation even under minimum nutrients conditions.
The Influence of Aluminum Slag Ash for Paving Block Production
Authors: Muzayyanah N , Maziya F B , Yuriandala Y , Kasam
Published: December 2021

Aluminum slag ash commonly used as road and river embankments. It had disposed in an open site and potentially increase ammonia, sodium, potassium, chloride and total dissolved solids levels in the surrounding environment. As much as 90% of Portland cement is composed of a mixture of elements of Ca, Si, Al, and Fe which are bonded into certain complex compounds. This study aims to analyze the influence of cement substitution with aluminum slag ash on the compressive strength and water absorption capacity of the paving block, and the appropriate type of paving block quality which is following SNI 03-0691-1996. The test objects used were paving blocks with a ratio of cement and sand of 1:3, where the composition of the addition of aluminum slag ash used was 5%; 10%; 15%; and 20%. The tests in this study were on compressive strength, water absorption capacity, and Toxicity Characteristic Leaching Procedure (TCLP) tests. The optimum composition is 10% aluminum slag ash in cement substitution. The type of quality is category B paving for parking equipment. The results of the TCLP on a 10% composition paving obtained that the parameter concentration is below the TCLP quality standard.
Application of a hydrological method for determining monthly environmental flow in Code River, Indonesia
Authors: Nugroho Adam Rus
Published: December 2021

The declining groundwater in Yogyakarta could potentially affect the Code River baseflow, thus lowering the river streamflow. Consequently, the riverine ecosystem would suffer from a low quantity of streamflow. The quantity standard of streamflow can be determined by calculating the environmental flow. In this study, the environmental flow requirement (EFR) for the Code River is determined by applying an enhanced version of the most-used hydrological method, namely the Modified Tennant Method based on Multilevel Habitat Conditions III (MTMMHC-III). The EFR in the Code River could be calculated successfully by the MTMMHC-III with a satisfactory temporal variability. The EFRs are the lowest during July to October in the normal years, July to September in the wet years, and July to December in the dry years. The EFRs are highest during January to April in the normal and dry years and January to May in the wet years. However, the EFR might become too low in the dry years, especially from the beginning of the dry season (May) until the early wet season (December), with only 4-11% of the average annual flow. Ultimately, the MTMMHC-III method is a better hydrological method than the original Tennant Method and Q95 method.
Study of Solid Waste Management in the Buildings Area of Integrated Campus of Universitas Islam Indonesia
Authors: Iresha F M , Kasam  , Muhammad F , Rahmat A
Published: December 2021

One of the problems that are faced by the Universitas Islam Indonesia (UII) is the amount of solid waste generated each year, add the increasing number of the student each year, then the problem becomes much worse and difficult to handle. Regarding it, the awareness of each student about solid waste management is needed. The 2 main purpose of this study is first to determine the composition and the generation of solid waste using the samples taken from 10 temporary solid waste dumps (FPSB, D3 Economics, FMIPA, FTI, FIAI, FTSP, FK, Central Library, Kahar Muzakir, GKU, and Rectorate) and the second is to identify student’s perceptions and behavior about individual solid waste management. The research was conducted using qualitative and quantitative descriptive approaches. The results show that the average amount of solid waste generated is 0.017 kg/person/day this is in line with the solid waste management record that shows that on daily basis each person produces approximately 0.010 - 0.020 kg. While the study about the students’ perceptions and behavior towards solid waste management shows that while most of the students are aware of it, the implementation is still lacking.
Physical Parameters of Compost Made from Cattle Farming Waste Using Vermicomposting Method
Authors: Kasam  , Iresha F M , Rahmani V F , Rahmat A , Ramadhani W S , Nurtanto M
Published: December 2021

Cattle Farm should not only be focusing on increasing productivity and maximizing profit but also on the environmental issue that happens around it. Recycling the waste and turning it into fertilizer is an excellent method of waste management. Effective and efficient organic waste management also provides great benefits for humans. One method that can be used is by using the vermicomposting method usingLumbricus rubellusearthworm inside a bamboo reactor. In this research there are two bamboo reactors are used, Reactor A contains a mixture of cow dung and rice straw, and Reactor B containing cow manure only. Physical parameters that were observed are moisture content, pH, temperature, color, and odor. The data were taken around weeks 0, 2, 4, and 6. It shows that the composts have water content values over 50%, pH values between 6-9, temperatures of <30 ° C, blackish in color, and an odor that resembles the smell of soil. From the four parameters examined, only the water content did not fulfill the SNI 19-7030-2004 requirement about the standard of compost quality, however water content can be controlled by drying.
Evaluation of Post-Construction Communal Wastewater Treatment Plants (WWTPs) in Sleman District, Special Region of Yogyakarta
Authors: Yulianto A , Pramudita A F , Wantoputri N I , Rahmawati S
Published: December 2021

The Special Region of Yogyakarta Government took one step to improve access to proper sanitation for the community through the Communal WWTP. There are four communal WWTP procurement programs in Sleman District: Community-based Sanitation, Urban Sanitation Rural Infrastructure (USRI), Special Allocation Fund and Community-based Environmental Sanitation. After the Communal WWTP was built and operated, various problems indicate the Communal WWTP has not run optimally after construction. Therefore, this study evaluated thirteen Communal WWTPs in Sleman District after construction was carried out. The aspects reviewed in this study were the administrator institutional and the management’s performance using the scoring method. The evaluation results based on the administrator institutional aspect and the management’s performance showed that Ambarketawang WWTP had less performance with a total score of 16. At the same time, other WWTPs got the optimal category with a total score more than equal to 25. These results indicate that the Community-Based Environmental Sanitation procurement program was considered less than optimal because the Ambarketawang WWTP did not keep Communal WWTP documentation and had no maintenance Standard Operational Procedure (SOP). The administrators did not also understand the main tasks and functions as administrators.
Implementation of occupational safety and health management system (OSHMS) on work-related accident rate in the manufacturing industry, Indonesia
Authors: Abidin A U , Nurmaya E M , Hariyono W , Sutomo A H
Published: December 2021

The Occupational Safety and Health Management System (OSHMS) is an important part of the protection of the workforce so that workers remain safe, healthy and safe. Every year in the manufacturing industry in the Sleman area, Yogyakarta Special Region, work accidents result in losses for the company because they have to be taken to the hospital. This study aims to determine the application of OSH to the occurrence of work-related accidents. This type of research is qualitative. The research was carried out in the manufacturing industry of the Hospital Equipment (HE) Division of the Pre-Treatment and Painting Unit. The research instrument uses the criteria for the OSH audit checklist, Government Regulation Number 50 of 2012, which consists of 5 principles, 12 criteria, and 166 items. The range of results from the audit achievement is 0 – 100%. The implementation of OSH in the company is 76.5%, in the category of good implementation, namely for the level of achievement of 60 - 84%. The number of findings was 39 criteria with major non-conformance categories 0 criteria and 39 minor criteria. The implementation of OSHMS can minimize the incidence of work accidents in workplace.
Hybridity Culture: The Adaptive Reuse Concept for an Escape Place. Study Case: Gedung Antara, Pasar Baru, Jakarta
Authors: Fajarwati A A S , Rombe O SC , Henry L , Rachmayanti I , Meliana S
Published: December 2021

The growth of cities has an impact on society. As a result of the population’s increased bustle and activity needs, dwelling space is becoming increasingly limited. The concept of “third place in hybrid and multicultural areas” is explored in this study, which combines adaptive reuse in buildings with the idea of multicultural hybridity. By adapting historic structures into new purposes that meet current needs, we could solve escaping spaces. To put that concept into practice, we must first comprehend the region’s cultural characteristics. The heritage building in Pasar Baru is situated in an area generated by the complex hybridity of Jakarta’s numerous ethnic communities. This area’s hybridity offers an exciting place that can be used as an escape route. This study employs a qualitative research approach that includes in-depth observations in Pasar Baru. We study old buildings that have a hybrid character from the ethnicities prevalent in Pasar Baru. According to the findings, heritage structures undergoing adaptive reuse must be evaluated regularly to account for changes in spatial conditions that occur over time. Adaptive reuse transforms ancient structures into new roles in conservation and uses a cultural context approach in the surrounding area, allowing for more efficient service.
Children’s Creativity and Creative Environment’s impact on Children Quality of Life. Case Study: Kampung Jogoyudan, Yogyakarta.
Authors: Iftironi M
Published: December 2021

Human create the environment and, finally, environment shape the human’s character. The quality of life are strongly affected by state of person and environment in which it is lived. How long the process of integrity, what someone goes through, will affect the level of change to their lifestyle and that will affect to their next quality of life. Even though, these parameters can’t be used to measure the quality of life of the children. The world of children is a multidimensional world. Several domains and dimensions used as approach will determine whether there is improvement in their lives. This study is to show the influence of children’s creativity and creative environment on their quality of life. The importance of this study is to form a critical community mindset in creating a creative environment through architectural elements, so that it can improve the children’s growth and development, and finally it will impact to improve their quality of life. Bivariate and Multivariate correlational was used to prove the relationship between children’s creativity and creative environment variables with quality of life. The results of this study indicate that children’s creativity and the creative environment are strongly effect to improving children’s quality of life.
Comparison of Morocco, Egypt, Turkey, and Tunisia Traditional Settlement as Muslim City and Kampung Naga Settlement as Indonesian Traditional Settlement in Perspective Form of Entrance
Authors: Pratiwi Y
Published: December 2021

Settlement in Muslim city consists of forms of entrance or form of submission. There are control, use, and ownership. Therefore the purpose of this study is to compare by examining responsibility and control in the form of entrance perspective in the form of ownership, control, and use in both traditional settlements in Muslim cities and Kampung Naga. This research used descriptive comparative method because to know between the form of entrance of traditional settlements in muslim cities and traditional settlements in Kampung Naga. The conclusion of this research are (1) based on the cases of form of entrance in muslim settlement in muslim city, the most ideal form of entrance is the unified form because applied Islamic legal system or shari’ah; (2) residents of Kampung Naga are the owner, user, and controller of settlement. Traditional settlements in Kampung Naga have a unified form of entrance where this is the ideal form in the Islamic legal system. Every resident have same rights or huquq. Even though in reality Kampung Naga is not a Muslim village, but Kampung Naga can be an example of the application of justice for all citizens to be able to control, own, and use in Indonesia.
The Correlation of Settlement Preferences and Community Resilience Post-Disaster in Palu City
Authors: Wardhani D K , Surjono  , Yudono A
Published: December 2021

In 2018, Palu City was affected by massive disasters (earthquakes, tsunamis, and liquefaction) which paralyzed various activities and resulted in losses of around Rp. 7.6 trillion. The government compiled a disaster-prone zone map (ZRB) that showed 96.03% of Palu City was classified as disaster-prone. It does not only impact the community’s perception of disaster risk, but also on settlement preferences (moving, hesitant to move, and not moving). This condition will affect the community resilience level against disasters. This study aims to determine the correlation between settlement preferences and community resilience, and determine the level of post-disaster community resilience in each sub-district of Palu City. This study’s analysis was done by using SEM-PLS. The variables used are social, economic, environmental, infrastructure, culture, government, and settlement preferences. The results show that all variables have significant impacts. The highest correlation came from the settlement preferences. High community resilience is found in Mantikulore and East Palu sub-districts, moderate community resilience is found in South Palu and West Palu sub-districts, while low community resilience is found in Tawaeli, North Palu, Ulujadi, and Tatanga sub-districts. The results of this study can be used as recommendation for the government to increase community resilience in Palu City.
Forest Bathing: A New Attraction and Disaster Mitigation for Batur UNESCO Global Geopark Bali
Authors: Mihardja E J , Sari D A P , Widana I D K K , Ridhani C , Suyasa I G W
Published: December 2021

Forests have ecological and sociological functions, including tourism development as well as disaster mitigation efforts. In the conditions of the Covid-19 pandemic that hit Bali tourism, it is necessary to develop new types of tourism such as this forest bathing. This research intends to study the potential and opportunities of bamboo forests in the Batur Geopark area to be used as new types of tourism, which at the same time can also be used as a disaster mitigation. A case study method with qualitative data collection includes observation, in-depth interviews, and literature study. A mapping plan for the bamboo forest area is also carried out to support the facilities and infrastructure for forest bathing activities. Bamboo has been used for the restoration of areas affected by the fire at Geopark Batur. However, no one has specifically offered the concept of Forest Bathing. Introducing forest bathing as a new attraction to revive Bali tourism and at the same time to preserve the environment is possible and necessary. Furthermore, there is important to develop destination branding and marketing for the forest bathing attraction.
Influence of Sustainable Development of Space Activities on Earth Ecology
Authors: Drobyazko S , Hilorme T
Published: December 2021

In the age of New Space, faces the global problem of orbit space constraint. Sustainable development of space activities will be possible only when space users implement technologies and practices suitable to avoid accumulating objects in orbit. Artificial debris in orbital space has reached catastrophic proportions. This harm the Earth’s ecology leading to increased steps to transform a planet that is unsuitable for life. Based on the fractal analysis, the graphic interpretation of the components of SWOT-analysis of development of the rocket and space industry is built. It is found that the weak side and threat to the activities of the aerospace industry is the insufficient funding of implemented projects and inefficient distribution of finances between its components: science and production. It is proposed to use blockchain technology as an effective tool for the cybersecurity of space objects. The ecological risks from space activities that affect the Earth’s ecology are analyzed. It is proven that the prevention of severe environmental consequences and minimization of the negative impact of the above threats require the introduction of environmental management systems in space activities.
Study of Cananga odorata (Lam.) Hook. f. & Thoms. Flower Development: Morphological Variations in an Urban Environment
Authors: Ramadhani I A M R , Salamah A
Published: December 2021

Cananga odoratais a native plant in the Indonesian archipelago. The flowers are often used to produce essential oils with many uses and a distinct fragrance. This study aims to observe each stage of theCananga odorataflower development. The flowers were obtained from a home garden in Pasar Minggu, South Jakarta, from November 2020 until January 2021. Further observations of the stamen and pistil developments were conducted usingDino-Lite Edge Digital MicroscopeAM4115 Series. The results show thatCananga odorataflower development can be categorized into bud, display-petal, initial-flowering, full-flowering, end-flowering, and senescence stages. The flowers require 35 days to develop from bud stage to flower senescence. Stamens and pistils also develop primarily during the bud stages and mature after flower anthesis. Flower mutants were also found and may be caused by a mutation in the flower’s homeotic genes. Each different stages of flower development show a different morphological change in the flower perianth and reproductive organs. A discrepancy of flower morphology within each stage, especially those seen during the anthesis stages, might imply a variation in the flower’s internal factors.
Spatial distribution of Infectious Disease Epidemic in The Soppeng Regency, 2016-2018
Authors: Basri  , Tahara Tasrifin , Malim Dinna Dayana La Ode , Munafi La Ode Abdul
Published: December 2021

Diarrhea, typhoid fever and dengue hemorrhagic fever (DHF) are environmentalbased infectious diseases that contribute to the mortality rate of humans. This paper investigates the spatial distribution and the infectious disease epidemic that occurs based on environmental factors. The three primary diseases analyzed were diarrhea, typhoid fever, and dengue hemorrhagic fever. We abstracted data from several sources, including administrative maps, Regional Spatial Planning, BAPPEDA Soppeng Regency, the Central Statistics Agency (BPS), Public Health Centre, RBI Maps, and National DEM. The tool used in this research is a computer equipped with ArcGIS. The analysis documented that the trend of the three primary diseases did not represent a consistent decline in three consecutive years and even increased in certain subdistricts. Spatial data shows that the spread of infectious diseases based on the incidence rate is still dominated at low levels, although medium and high IR categories are also found in several areas in The Soppeng district. This paper proposes information for local government to implement health development planning and programs, particularly preventing and treating infectious diseases in Soppeng District.
Analysis of Spatial Distribution of PM2.5 and Human Behavior on Air Pollution in Jakarta
Authors: Solihah K I , Martono D N , Haryanto B
Published: December 2021

Particulate matter is one of the threatening pollutants harmful to health. Currently, many researchers focus on the problem of PM2.5 concentrations in urban areas. This study aims to estimate the spatial distribution of PM2.5, and identify human behavior on air pollution in Jakarta. The method used were Spline with Tension to build the PM2.5 models, and multiple linear regression models to analyze human behavior on air pollution. The results showed that the annual average of PM2.5 in the last two years tends to be high in western, southern, and eastern parts of Jakarta. In addition, there was a decrease of PM2.5 concentration in 2020 compared to 2019 assumed as a result of Covid-19 Pandemic restrictions. Besides, analysis results showed a significant association between knowledge and attitude aspects on the action aspect. Based on descriptive analysis, people have good knowledge of air pollution and also concern to reduce air pollution. However, the actions for air pollution control are still not maximized which may cause high PM2.5 concentrations in Jakarta. We conclude that to reduce air pollution, the government should focus on the border areas of Jakarta and it can be done by increasing public knowledge and raising awareness for air pollution.
Climate Change HOTS for Designing Smart Trash in Elementary Schools
Authors: Rahmayanti H , Oktaviani V , Syani Y , Ichsan I Z , Kurniawan E , Titin  , Dasmo  , Hermawati F M , Sison M H
Published: December 2021

Environmental degradation triggers the numerous impacts of climate change. This research describes the Higher-Order Thinking Skills (HOTS) of vocational high school students and university students regarding climate change to develop a Smart Trash. The research method used is descriptive method with survey technique. Essay tests are used as the research instrument. The essay questions are comprised of 12 items with 6 indicators. The research finds that the HOTS scores of both vocational and university students are in the very low category, especially in the creative-thinking aspect. The average scores of climate change HOTS for vocational and university students are 25.60 and 30.23, respectively. The research result indicates that Smart Trash as a learning medium should be introduced in the form of project assignments for both vocational and university students. This research concludes that the HOTS score is low and needs an improvement to create a Smart Trash. The suggestion for further research is to improve students’ HOTS in vocational education and universities by developing HOTS learning.
SWOT Analysis in Determining Environmental Risk Management Strategy in Medium Scale Nickel Laterite Mining (Case Study in PT Rohul Energi Indonesia)
Authors: Taufik M J , Martono D N , Soelarno S W
Published: December 2021

Nickel is an essential metal in modern infrastructure, with significant uses in the stainless-steel industry for less than 65%. Nearly 70% of the world’s nickel laterite production comes from Indonesia and the Philippines. The high demand for nickel-based materials globally and the availability of nickel laterite ore in Indonesia make laterite nickel mining in Indonesia inevitable. Medium and small mining companies are more likely to have a more significant impact on the environment than large companies. Therefore, it is necessary to evaluate the implementation of environmental risk and impact management, and develop a company strategy. The research was conducted by qualitative method, namely by descriptive analysis and SWOT analysis. The data was collected in interview text, questionnaire results, field notes, documentation, photos, and videos. SWOT is one of the methods to analyze the strategy of an organization by identifying and measuring strengths and weaknesses, and opportunities and threats of the organization. Result is obtained score 3.77 (the X-axis), and 0.34 (the Y-axis) and will be plotted into a quadrant graph of the SWOT analysis method. The research resulted in PT. REI is in quadrant I. Therefore, the strategy would be utilizing the strengths and opportunities of the organization.
Sustainability Challenges of The Landfill Gas Power Plants in Indonesia
Authors: Budiarto R , Gozan M , Novitasari D , Wahyuni N S , Naimah D Y N
Published: December 2021

As part of urbanization, waste causes a significant challenge in Indonesia. As part of the solution to this challenge is applying the landfill gas (LFG) powerplant. Various efforts are being conducted to implement the LFG powerplant in Indonesia. The literature review was conducted to focusing on the performance sustainability of the LFG powerplant. The explaining power capacity, expected energy supply, actual energy supply, problems, and their cause and impact data are presented. All LFG power plants show technical problems, such as leakage gas pipe, defected gas capture, absence of gas storage and purification equipment, and limited monitoring system. Financial and social challenges exacerbate the technical issues that risk the system’s sustainability, such as unclear funding mechanism, lack of capacity from stakeholders, and conflict with the local community. All of the issues hindered achieving performance targets in the powerplant development, operation, and maintenance phase.
The Waste Recycling of Sugarcane Bagasse-Based Biochar for Biogas Purification
Authors: Wuri M A , Pertiwiningrum A , Budiarto R , Gozan M , Harto A W
Published: December 2021

The utilization of the recycling of biomass waste for carbon dioxide (CO2) adsorption in biogas is still rare. Even though the experiments on the biogas purification still using synthetic biogas. This paper investigated the recycling of biomass waste, sugarcane bagasse for biogas purification. The conversion of biomass into biochar was claimed to expand the surface area of its pores for capturing CO2 in biogas. Five treatments of adsorbents used in this study, 100% volume of zeolite or biochar, 75% volume of zeolite and 25% biochar, 50% volume of zeolite and biochar, 25% volume of zeolite and 25% volume of zeolite, and 25% volume of biochar. The difference of volume treatment in adsorbents affected methane (CH4) and CO2 composition of biogas. Biogas purification by adsorption was conducted at 5-7 bar pressure range and room temperature. Biogas before and after purification were tested of CH4 and CO2 composition by gas chromatography. A significant reduction in CO2 was shown when 50% volume of zeolite was replaced by biochar. The highest in CO2 reduction showed by the composition of 50% sugarcane bagasse-based biochar and 50% natural zeolite. The CO2 decreases did not accompany by the CH4 increases because mesopore-sized still dominated the adsorbents’ pore size.
Waste to Energy in Sunter, Jakarta, Indonesia: Plans and Challenges
Authors: Damayanti P , Moersidik S S , Haryanto J T
Published: December 2021

Waste-to-energy (WtE) power plants in waste management have been applied widespread because it is considered the best waste management solution compared to other waste management technologies. However, Jakarta has relied heavily on landfills regarding its waste management. Bantargebang landfill has been the only landfill owned by Jakarta and has been operating since 1989, so it has almost reached its capacity limit. Thus, to solve the problem, the Provincial Government of Jakarta has planned to build an Intermediate Treatment Facility (ITF) in a WtE power plant in Sunter. This article aims to find out the plans and the challenges of WtE in Sunter, Jakarta. This research was conducted with a literature study on waste to energy in several countries that have applied it to their waste management systems and literature related to the progress of waste to energy development in Indonesia especially ITF Sunter, and the challenges that must be done faced. Based on the literature study, building an ITF is one of the Jakarta Provincial Government’s responsibilities. However, the composition and characteristics of the waste tend to be lower than (WtE) standards, so the waste cannot be effectively processed. Therefore, the use of a pre-treatment facility should be considered.
The Interrelationship of Sustainable Economic Value of Watersheds Using Contingent Valuation Method Approach with Circular Economy: A Literature Study
Authors: Wahyuningrum D , Gravitiani E , Sartika R C
Published: December 2021

Waste accumulation mainly causes environmental damage. Watersheds experience high waste pollution problems. Therefore, the need to maintain ecological sustainability by maintaining the cleanliness of the watershed environment. This research studies the interrelationship of economic value in watersheds as measured by the contingent valuation method approach with the circular economy. This research aims to identify the application of circular economy and know the use of the contingent valuation method approach in measuring the economic value of natural resources in the form of watersheds. The method used is a descriptive approach using literature studies. This research uses secondary data by collecting data and information through website-based electronic media, relevant journals, previous research, and so on. The results of this research are measuring the economic value of watersheds using circular economy and using the contingent valuation method to find out how willing to pay from the community towards environmental improvement and the desire to receive compensation from ecological damage. The application of a circular economy is expected to reduce waste pollution and can increase economic growth.
Cost and Benefits Analysis of Implementing Waste Bank in Gunung Kidul Beach Area, Yogyakarta
Authors: Gravitiani E , Chayyani N R , Juwita A H
Published: December 2021

Waste banks are community-based waste management programs, which group waste based on their selling value. The application of garbage banks in coastal areas needs to be done because the more beach visitors, the more garbage is also increasing. The purpose of this research is to see the potential application of garbage banks in coastal areas. The method used is Cost-Benefit Analysis (CBA) with secondary and primary data. The results show that the application of waste banks can be done based on the investment criteria applied. Net present value shows a positive value, BCR > 1, IRR > discounted interest, and Payback period < 1 year. It can be concluded that the garbage bank program will positively impact the progress of tourism in terms of economic aspects.
Screening Extract EtOAc Sponge Derived Fungi Against Clinical Staphylococcus aureus to Obtain Sustainable Natural Product
Authors: Lutfiah R , Juliasih N L G R , Hendri J , Setiawan A
Published: December 2021

The increasing resistance of pathogenic bacteria to various antibiotics worldwide has become a severe problem for medicine and human health. This study aims to determine the antibacterial activity of extract ethyl acetate (EtOAc) produced by sponge-derived fungi as an antibacterial agent. This study obtained nineteen fungal isolates from the marine sponges in Singaraja, Buleleng Bali, Indonesia. The pathogenic bacteria Staphylococcus aureus was obtained from patients at Abdul Moeloek Hospital, Bandar Lampung. The susceptibility test of Staphylococcus aureus was carried out on nine types of commercial antibiotics using the disk diffusion method. The solid-state fermentation (SSF) method on rice media carried the cultivation and co-cultivation of fungi. The bioactivity of the extract was tested against pathogenic bacteria S. aureus. The results of the susceptibility test to antibiotics showed S. aureus resistance to amoxicillin, ciprofloxacin, erythromycin. Showed that extracts A12RF, A05RF, C36RF had inhibitory activity against the growth of S. aureus at a concentration of 0,5mg/mL. These results indicate that co-cultivation can induce fungi to produce different secondary metabolites. This basic information is essential for further studies related to the production of fungal bioactive compounds through the co-cultivation stage in the SSF process.
Watershed Health Changes based on Vegetated Land Cover in the Upper Citarum Watershed, West Java, Province, Indonesia
Authors: Marko K , Sutjiningsih D , Kusratmoko E
Published: December 2021

The increase in built-up land and the decrease in vegetated land due to human activities have worsened watershed health from time to time. This study aims to assess the watershed’s health and changes every ten years based on the percentage of vegetated land cover except agricultural land in the Upper Citarum watershed, West Java. Land cover information was obtained from the processing of Landsat imagery in 1990, 2000, 2010, and 2020 based on remote sensing using the supervised classification method. The watershed health level is determined by calculating the percentage of vegetated land cover of 173 catchments. The results show that the area of the vegetated land cover decreased from 1990 to 2000, then increased from 2000 to 2010, and decreased again from 2010 to 2020. Changes in the area of vegetated land in each period of the year affect the health level of the watershed in a spatiotemporal manner. Although these changes occur in a fluctuating manner, the number of unhealthy catchments in the Upper Citarum watershed is increasing, especially in the Ci Kapundung sub-watershed in the north and Ci Sangkuy in the south.
Estrogenic Waste Conservation in Bengawan Solo Sub-Watershed: Application of Contingent Valuation Method
Authors: Khoiriyah S , Suranto  , Setyono P , Gravitiani E
Published: December 2021

This study aims to determine the number of people willing to pay (WTP) for clean water using the Contingent Valuation Method (CVM). The sub-watersheds are located on the Pucang Sawit, Pepe, Premulung, and Kalianyar rivers. The data were random collected through interviews using questionnaires. The primary data consisted of four types, namely socioeconomic, perceptions of the environment and clean water, conservation of polluted water and simulations. The calculation of WTP with the CVM approach was carried out in 4 stages, including creating a hypothetical market, obtaining the WTP value, using an analytical model with dummy variables, and data analysis. The data analysis includes descriptive, regression, model significance, coefficient of determination (R2), and partial test. The results showed that 69.2% of respondents chose the 3rd simulation, with the willingness to plant 20 clumps of portulaca plants, to clean 50 litres of water for IDR 300,000. Based on the partial test, the variables that significantly affect WTP were the monthly expense, number of family members, gender, participation in environmental activities, and willingness to pay for water conservation. The contribution of this study is to be able to determine the WTP of a water conservation activity polluted in another area.
BIOTRICO: A Breakthrough Fertilizer for Sustainable Agriculture
Authors: Irawan S , Antriyandarti E
Published: December 2021

The second goal of Sustainable Development Goals is to end hunger, achieve food security and improved nutrition as well as promote sustainable agriculture. Within the framework of sustainable development, agriculture has dimensions as a complex ecosystem of which biodiversity and productivity must be maintained. Accordingly, organic agriculture is an agricultural system that holistically pays attention to the sustainability of biodiversity, biological cycles, and soil biological activities. The problems faced by farmers are the attack of disease-causing pathogens; the level of pathogen attack can even cause crop failure. Phytophthora infestans is a pathogen that causes root, stem, and leaf disease, and this disease is hazardous for plants. Phytophthora infestans are challenging to control, easily transmitted, and have the highest virulence when the plant is in the vegetative period. Therefore, this research aims to determine the level of effectiveness of BIOTRICO in controlling Phytophthora infestans by using experimental method in CV Agrolestari Merbabu. From the experimental results, BIOTRICO was able to minimize the attack of pathogens to only 20%, much lower than the control (60%) and proven capability to become a better option in root, stem, and leaf disease than chemical pesticides for sustainable agricultural practice.
Cleaner Production Assessment of the Aluminium Industry
Authors: Wicaksono A D , Agustina D , Meidiana C
Published: December 2021

Cleaner Production (CP) practices comprised environmental strategy perpetually applied in the production, processes, and services to bolster efficiency, safety, and environmental friendliness. Combining with the mindset of sustainable stocks and resources, this exercise of cleaner production provides advantages of minimum toxic wastes and residues. In this study, we prioritize this practice to be applied in the aluminum industry, of which cleaner production action has not yet been employed. This study aimed to assess the application of cleaner production in the aluminum industry. The method used is assessing cleaner production using the criteria of raw materials, production processes, water and wastewater, energy use, good housekeeping, solid waste and gas, human resources, and environmental performance. The assessment results of the cleaner production application indicate that the Mandiri industry type is generally at level 2 with a frequency of 13 industries. In general, SMAR’S is at level 3 with a frequency of 11 industries, and in the BLK industry, it is at level 2 with 11 industries. These results can be used as a recommendation for the government to increase cleaner production in the Jombang Regency.
Digital Village: Service, Togetherness, and SDGs
Authors: Irwansyah
Published: December 2021

Digital village is a development project with a digital platform. Digital transformation based on village potential is carried out to provide better services to the public. By using the capability maturity model (CMM), social contractual utilitarianism (SCU), and sustainable development goals (SDG), the research analyzes the content both quantitatively and qualitatively in public documents about digital villages in Indonesia. Public documents produced by the central, regional, media, and public governments stored on a website are extracted through the NVivo application and then categorized and analyzed with the categories of CMM, SCU, and SDG, tested for reliability via intercoder reliability and validity through trustworthiness. This study found (1) standard models related to government services to the public, (2) togetherness, and (3) the achievement of SDGs, especially the 8th goal, namely decent work, and economic growth. This study showed that the digital village enhances the government services to improve village economic growth and quality of education.
The Loss of Ecosystem Services in Women’s Forest at Youtefa Bay, Jayapura, Papua, Indonesia
Authors: Tijjani S , Mizuno K , Herdiansyah H
Published: December 2021

The uniqueness of mangrove protection in Papua is found in the Enggros Tribe, Youtefa Bay, Jayapura, Indonesia, a Women’s Forest. Women’s Forest is a mangrove forest managed under the Tonotwiyat customary law of Enggros Tribe, where men are prohibited from entering and foraging in this forest. However, the function of women’s forest ecosystem services began to decline by decreasing water quality, waste accumulation, and land conversion. The loss of ecosystem services must be analyzed to identify and quantify the loss of indigenous peoples. Based on the four frameworks of ecosystem service functions of TEEB (2011), the provisioning services, regulating services, habitat services, and cultural services, then carried out by desk study and in-depth interviews, it is shown that the most perceived loss by the community was the reduction in provisioning services by the declining the number of fish and bia noor. There is also a decline in cultural services satisfaction from women’s forests, where it is a place to talk and tell stories for Enggros Women. Further research in economic losses is needed. Local management by the Enggros Tribe itself must be increased, followed by the support from external stakeholders for the sustainability of women’s forests.
Axiology of the Phenomenon “Sustainable Government Administration” and Interaction of Ukraine with International Organizations in the Field of Environmental Safety
Authors: Lelechenko A , Lebedinska O , Somin S , Derun T , Ivanisiva M
Published: December 2021

The purpose of the article is to present empirical research on the study of the axiology of the phenomenon of “sustainable government administration”, the identification of its role and place in the system of value priorities for the development of modern human civilization, as well as the justification of new approaches to international cooperation towards the achievement of global Sustainable Development Goals. A new scientific term has been formulated and a separate scientific and practical direction in the field of science “State administration” - “sustainable government administration”, its subject, object, exclusive features, and methods of implementation have been determined. The author’s model of a criterion comparative analysis of state governance of sustainable development, public administration sustainable development and sustainable government administration features is proposed. Particular attention is paid to the issue of enhancing Ukraine’s participation in the activities of international governmental and non-governmental organizations in the field of environmental safety. The article is a logical continuation of previous scientific studies of the author’s team. The analysis allows to assume that in the case of the introduction of state regulation of sustainable development at the global, national and regional levels, has every reason to achieve a significant part of the Sustainable Development Goals without waiting for 2030.