bluuebunny/crossref_metadata_2025_split huggingface dataset:
GIS-based multi-criteria analysis for nuclear power plant site selection in West Kalimantan
Authors: Salsabila K , Saraswati R , Shidiq I P A , Susiati H 
Published: January 2021

Abstract
Nuclear power is set as the highest priority to slow global warming, so the construction of a nuclear power plant (NPP) using nuclear reactors as a source of heat energy is initiated to produce pollution-free electricity. Bengkayang and Mempawah Regencies in West Kalimantan provinces are selected as prospective NPP locations based on the exclusion and discretionary criteria. The exclusion criteria consist of the geological structure, types of bedrock, the existence and sufficiency of the cooling water, proximity to the population center, and terrain shape. Meanwhile, the discretionary criterion is proximity to the road network. This study aims to map and analyze the exclusion and discretionary criteria for potential NPP. The multi-criteria analysis in this study includes screening analysis, regional suitability analysis, and descriptive spatial analysis. It is performed using the Geographic Information Systems (GIS) technique on spatial data information. The screening process produced six potential locations to be used as NPP. Five locations are in Bengkayang Regency, precisely in Sungai Raya Kepulauan District and Sungai Raya District. Another location is in Mempawah Regency, precisely in Sungai Kunyit District.
Electrodeposition for rapid recovery of cobalt (II) in industrial wastewater
Authors: Widiyanto H , Kosimaningrum W E , Rahmayetty  
Published: January 2021

Abstract
Cobalt (II) recovery from wastewater opens the opportunity for sustainability and green process. Herein, cobalt (II) was recovered from the aqueous solution by electrochemical cell method, so-called electrodeposition. Cobalt electrodeposition from the solution was conducted in the electrochemical cell using a graphite anode and a stainless-steel cathode by varying current (0.25, 0.5, 0.75, 1 and 1.25 A), pH (2, 3, 4, 5, and 6), and cobalt concentration (10, 20, 30, and 50 ppm). The monitoring of all cobalt concentration changes was using ICP AES spectrophotometer. Electrodeposition at various applied currents has been removed 99.81% of cobalt from the solution in 20 minutes. Prolonging electrodeposition up to 25 minutes has removed 100% cobalt in the solution. Electrodeposition was also found useful at acidic to neutral pH by removal efficiency 99.37% in 20 minutes of the process. Cobalt in various concentration solutions can be removed 99.54% by applying a current of 0.25 A for 20 minutes. The conclusion is that the cobalt recovery process from PTA plant wastewater is feasible to be further developed.
Designing interpretation tracks for nature tourism in Tahura Gunung Menumbing, West Bangka
Authors: Krisma E E , Marhaento H 
Published: January 2021

Abstract

Taman Hutan Raya (Tahura) Gunung Menumbing is a well-known protected area in West Bangka, Indonesia, and a popular heritage site for its old historical house located at the top of the mountain that was used by the Dutch to isolate the founding fathers of the Republic Indonesia during the war era. Although it has been a popular tourism site, many potential attractions in Tahura Gunung Menumbung are still unexplored. This research aimed to design interpretation tracks for nature tourism in Tahura Gunung Menumbing to increase tourism destination attractiveness. To achieve the research purposes, this research used the combination of field surveys, literature reviews, and interviews. We followed the procedure from the Bureau Land of Management to score the landscape attractiveness. It was found 142 plant species, 61 animal species, and 12 landscape points of interests that were potential to be the interpretation objects. We identified 10 interpretation tracks varied from 160 to 4,200 meter in length and contained 2 – 8 interpretation objects. Six interpretation programs are then proposed, such as Menumbing Jungle Tracks, Tin Mining Explorations, Primates of Menumbing, Snakes to Explore, Menumbing-Belt Adventure, and Menumbing’s landscape and socio-culture.
Characteristics of the settlement brand index for improving environmental safety in Balikpapan
Authors: Ulimaz M , Jordan N A , Tufail D N 
Published: January 2021

Abstract
Balikpapan is no longer an oil city oriented towards oil drilling, but is limited to processing services only, and is developed through a dynamic, harmonious and green service city. In the middle of this transformation process, Balikpapan is also committed to realizing Balikpapan, a Smart City, where one of the components is Smart Branding. Economic transformation has an impact on environmental changes. The level of the environmental safety is inversely proportional to the branding of Balikpapan. The criteria for occupancy eligibility are a sense of security and comfort. Comfort in urban areas can be realized by creating comfortable spaces to live in. Before making significant efforts to develop technology for recognition of the Balikpapan smart city, it is necessary to study the characteristics of the level of residential environmental security based on one of the smart branding components. The level of the Settlement Index is analyzed using descriptive statistics with distribution pattern maps and hexagonal diagrams. The results of the analysis show variable people (55.67) and pre-requisites (49.68) show the most significant influence on the branding of Balikpapan City. Also, it is supported by economic facilities and the development of the creative industry.
The application and effectiveness of fly ash granule using tapioca flour and sugarcane molasses as granule agents for soil ameliorant and fertilizer
Authors: Agusta H , Nisya F N , Iman R N , Agustina S 
Published: January 2021

Abstract
The most popular fly ash application as coal combustion energy waste is as a mixing agent for cemented infrastructure and building construction. However, due to its appropriate various mineral content from vegetation fossil, the usage for fertilizer and soil amelioration agent was tested in small pots on the field. The experiment’s purpose was to confirm the effectiveness of fly ash granule application using tapioca flour and sugar cane molasses as granule agents for soil ameliorant and fertilizer. Specifically, for the sorghum growth, development, and potential bioethanol yield harvested in the vegetative stage. The granule binding agents’ source is from an agricultural product, byproduct, or agricultural waste. Hence, environmental management and the fly ash granules’ production system exhibit the advantage of a sustainable production system. The concentration of 10% of the granule binding agents concentration for the application at a rate of 8 tons ha−1 was effective enough to improve the soil properties, plant growth, and the doubling of potential bioethanol yield.
Zinc contamination in surface water of the Umeda River, Japan
Authors: Andarani P , Alimuddin H , Suzuki R , Yokota K , Inoue T 
Published: January 2021

Abstract
Due to the adverse effects of zinc (Zn) on the aquatic organisms, environmental quality standards (EQS) for zinc of 0.03 mg/L in surface water has been enacted in Japan since 2003. However, “zinc elevated sites” persist, including Aichi Prefecture. This study aims to assess the spatial and temporal variability of zinc contamination for 14 months in surface water of the Umeda River, Aichi Prefecture. The water samples were analyzed using Flame Atomic Absorption Spectrometry. The zinc concentrations tended to be higher in a downstream direction. The concentration means of nine sampling stations in surface water in August 2019 to July 2020 varied from 0.011 to 0.031 mg/L. The annual mean concentration value has already exceeded the EQS. Meanwhile, the yearly concentration means of the industrial wastewater were 0.036 to 0.079 mg/L, lower than the National Effluent Standards of 2 mg/L in Japan. All sampling points had relatively high concentrations ranged from 0.021 to 0.062 mg/L in February during the winter season. The reduced precipitation causing low river discharges might consequently elevate the zinc concentrations. The total zinc load at the most downstream section was approximately 0.012 t/km2/year. According to this study, the Umeda River has been affected by anthropogenic activities.
Coastal settlement resilience to water-related disasters in Semarang City
Authors: Dewi S P , Ristianti N S , Kurniati R 
Published: January 2021

Abstract
The Semarang coastal areas face water and sediment-related disasters such as floods, land subsidence, and erosion that threaten its communities’ livelihood and undermine the environment’s coastal resources and quality. Likewise, the lack of adequate infrastructure and facilities makes the coastal area included as a slum area. Hence, living in slum settlements and facing water-related disasters makes people more vulnerable and difficult to face disasters. Therefore, this study focuses on assessing the physical quality of settlements as part of physical capital that reduces vulnerability and increases the community’s adaptive capacity to overcome adversities. The study adopted a quantitative approach through the scoring and descriptive comparative analysis by comparing each resilient settlement’s physical condition based on the indicator set.
Synthesis and characterization of Fe3O4-Activated Carbon and it’s application to adsorb methylene blue
Authors: Dirgayanti D S , Koesnarpadi S , Hindryawati N 
Published: January 2021

Abstract
Synthesis and characterization of Fe3O4-Activated Carbon (Fe3O4-AC) and the application to adsorb methylene blue has been conducted. The Fe3O4-AC was synthesized using the co-precipitation method on alkaline conditions. The Fe3O4 was prepared from mixing mole ratio of Fe3+ and Fe2+ = 3:2, and AC was made from an egg rack. Composite of Fe3O4-AC was characterized using Fourier Transform Infra-Red (FTIR), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), and Vibrating Sample Magnetometer (VSM). FTIR characterization was indicated the appearance peak of a C-O vibration at 1033.85 cm−1 and a functional group of Fe-O at 540.07 cm−1. XRD pattern of Fe3O4-AC was the presence peak of crystal structure Fe3O4, even though it’s small intensity. SEM image of Fe3O4-AC was spherical with the denser pore of structure. The saturation magnetization of Fe3O4-AC was lower than Fe3O4. The result showed that adsorption of methylene blue on Fe3O4-AC and AC was optimum at pH 7. The sorption of methylene blue on Fe3O4-AC and AC was 126.043 and 102.82 mg/g, respectively. The performance of Fe3O4-AC was greater than that of AC.
Measuring land subsidence of buildings in Semarang Chinatown
Authors: Rukayah R S , Sardjono A B , Abdullah M , Yulichandra R 
Published: January 2021

Abstract
There are not many studies that discuss land subsidence and try to measure it in historic areas. This paper will take an inventory of historical areas that have existed since the early growth of cities such as Semarang Chinatown, which has existed since the 17th century. This paper is part of the results of research on land subsidence in coastal cities in Java, which have left many historical areas. Semarang City is one of the case studies because it has a high land subsidence rate of around 20 cm/year in the North Semarang area. Indeed, this area in the past was an ocean. However, due to sedimentation, on the old 1700s map, this area has become a marsh. After becoming mainland, several historical areas stood on young alluvial land. The purpose of this paper is to make an inventory of old buildings in the historic area of Chinatown. On the map from 1695 to now, after 305 years, the area has experienced land subsidence, which can be seen visually in several buildings. The research method used old photos, old maps, and field surveys by taking samples of several old residences that still exist. To strengthen the data, the use of Google street view is very helpful in seeing conditions in the field. The recommendation of this research is to provide directions for an inventory of the list of buildings that need to be conserved due to the hazard of subsidence, which is currently not being felt by the local community.
OTTV recalculation of Suara Merdeka Tower: a recommendation design towards energy efficient building
Authors: Pramesti P U , Ramandhika M , Hasan M I , Werdiningsih H 
Published: January 2021

Abstract
This paper discusses how a building facade design possess an immense significant effect on thermal value transfer on building envelopes. The thermal transfer from outside into the building through the building envelope affects the thermal conditions in the building. Hence it determines the energy requirements in the room, such as the need for indoor air conditioning. Calculation on the southwest facade of Suara Merdeka Tower Semarang using the Ecotect software with the result that the OTTV (Overall Thermal Transfer Value) reaches above 35 W/m2 that is 59.44 W/m2. This facade is the face of the building as well as the smallest facade area. This smallest area remarkably influences on conditions in the building since the combination of glass types dominate and no shading devices on the entire side of the building. Solar radiation falls directly on the Southwest side after 12.00 pm and is not shadowed at all (overshadowed by 0%). This study simulates the redesign of the southwest façade and recalculates the OTTV value after the redesign process using the Ecotect software. The result obtained is a decrease in OTTV value by up to 35% after redesign recommendation applied.
The economic potential of paper waste recycling activities on the informal sector in Grobogan District a case study: Purwodadi Sub-district
Authors: Samadikun B P , Sinttia D A B , Rezagama A , Sumiyati S , Huboyo H S , Ramadan B S , Hadiwidodo M , Nabila F 
Published: January 2021

Abstract
Waste is a serious issue, not only in Indonesia but also in other countries. The governments have conducted various attempts to reduce waste, for example, by recycling waste. One of Indonesia’s regions that done recycling is Purwodadi Sub-District, where the activity of waste utilization is mostly conducted in the informal sector. This research aims to estimate the economic potential and the expense of the existing system of paper waste management and analyze the benefits of paper waste management activity by the informal sector in Purwodadi Sub-District economically and environmentally. The method used is interviews and questionnaire surveys toward 31 recyclers consisting of scavengers, waste banks, garbage collectors I and II, and the dealers. Based on the research result, each recycler’s economic potential in the enterprise of paper waste recycling was different. By applying for the paper waste 3R program in the informal sector, the benefits are divided into economic and environmental benefits. The economic benefits are profits from selling paper waste taken from recyclers. In contrast, the informal sector’s environmental services as paper waste management reduce the percentage waste reduction of 15.9% in Purwodadi Sub-District.
Estuary zone based on sea level salinity in Ciletuh Bay, West Java
Authors: Tunjung D M , Supriatna S , Ash Shidiq I P , Manessa M D M 
Published: January 2021

Abstract
The Estuary area is an area where there is a mixture of seawater with fresh water from the mainland. This estuary area is unique because seawater mixing with fresh water causes brackish water formation with fluctuating salinity. The fluctuation in salinity is influenced by the depth and shape of the water bed and the season. This study analyzes the estuary area (zone) in Ciletuh Bay, West Java, based on the rainy and dry seasons associated with bathymetry. The salinity value is obtained from Sentinel-2A image processing, using the salinity estimator algorithm’s calculation, namely the Cilamaya Algorithm. The results showed that the mapping of the distribution of salinity forms the estuary boundaries, and the variables of rainfall and bathymetry affect the distribution of salinity values. The shallower the water, the lower the salinity level. Conversely, the deeper the waters, the higher the salinity level. The statement is due to the influence of freshwater entry into the sea, which is also related to rainfall (season), affecting fluctuations between saltwater and freshwater.
Analysis of risks and challenges to demographic bonuses in sustainable development programs through population policy transformation (case study in Central Java Province)
Authors: Setyoningrum D U , Warella Y , Yuningsih T 
Published: January 2021

Abstract
Indonesia has experienced changes in various aspects due to the increasingly complex dynamics of the times. One of the triggers is related to the issue of the demographic bonus that is being experienced. The population of productive age is greater than that of non-productive age that the population growth will also increase. It is a problem because the increase in population is not matched by additional land. The government already has a population control program, as stipulated in the Family Planning Program (KB). In order to accelerate the population control mechanism, the government launched the Kampung KB program to reach out to the community more effectively. This study used the descriptive qualitative method. This study aimed to describe and analyse the risks and challenges to the Population Control Program environment in Central Java Province using SWOT. The result obtained that the high population with productive age can increase the population growth rate because Central Java Province is experiencing a demographic bonus.
Performance stability of reactors in disseminating COD and ammonium in domestic wastewater contaminated with pharmaceutical residues
Authors: Sudarno  , Hardyanti N , Sipayung M F 
Published: January 2021

Abstract
Currently, the use of PPCP products has increased significantly. Personal Pharmaceutical Care Products (PPCPs) enter the environment through human activities and residue from hospital and community use. The effect of increasing the concentration of amoxicillin as a pharmaceutical residue on bacterial growth and removing COD and ammonium was investigated on the intermittent and continuous reactor’s performance. The study was started with seven days of seeding acclimatization and running for twenty days. An increase in the concentration of pharmaceutical residue pollutants was carried out every five days. The sediment used came from the septic tank sediment and used artificial waste with an initial COD of 100 mg/l and an initial Ammonium of 80 mg/l. The results showed that the increase in the concentration of pharmaceutical residual pollutants in the operational reactor affected COD removal efficiency and ammonium efficiency. The efficiency of COD reduction at increasing concentrations of amoxicillin 0 mg/l, 5 mg/l, 10 mg/l and 20 mg/l were 58.06%, respectively; 48.48%; 41.18% and 35.14%. Meanwhile, the highest ammonium reduction rate was when the increasing amoxicillin concentration to 5 mg/l with the ammonium reduction rate of 3.98 NH4
+ -N/l.day.
Low-income households sustainability based on ecological perspective at Villa Karangsari Kebumen, Indonesia
Authors: Aini W N , Sunarti S , Esariti L 
Published: January 2021

Abstract
The research aims to examine the ecological sustainability of low-income households at Villa Karangsari. The majority of the houses have not used energy efficiently for residents, as evidenced by waste management activities, electricity, clean water energy savings, and fuel savings to reduce pollution for the housing environment. This research uses a quantitative approach via observations and questionnaires distributed to 80 respondents. Literature suggested that low-income households could be more sustainable by creating a healthy residential environment (including lighting, air circulation, greening, and pollution-free) and energy-efficient residential (at the stage of saving energy, not yet processing water and waste management). However, the result shows that the sustainability level is only at the stage of creating a healthy home environment with a score of 3,33 (good). For energy efficiency, the score is 2,99 and classified as enough. In sum, the ecological sustainability level is low because efforts to create a sustainable environment are still the residents’ responsibility. This research recommends that social capital could be used to mediate the potential for adapting and being sustainable via cooperation and networking.
Estimation of the potential of understorey and litter carbon on the shrub bush vegetation in Aceh Besar District
Authors: Umar U , Sufardi S , Syafruddin S , Teti T , Munar M 
Published: January 2021

Abstract
The distribution of shrub vegetation is almost evenly distributed in Aceh Besar district. The desire to see the carbon potential in this vegetation and treat it - future treatment will be carried out both reforestation and soil management to increase carbon stock for the future. Therefore, it is necessary to research and determine how much carbon potential is in scrub vegetation in the district Aceh Besar by making plots according to field conditions. Then, decided each vegetation growth on seedling plot sizes with a minimum area of 4 m2 (growth rate woody vegetation < 2 cm in diameter with a height = 1.5 m) and minimal stake plot area 25 m2 (growth rate of woody vegetation with a diameter of 2 cm to <10 cm). Each plot, both seedling and sapling plots, was repeated five times. Vegetation Shrubs <2 cm in size are dominated by Teki grass (Cyperus rotundus) and Putri Malu (Mimosa pudica). For shrub, vegetation measures 2 cm - 10 cm across dominance by Acacia mangium plants. The total amount of plant carbon biomass is 2,053,546.33 tonnes/ha, a C value of 964,990.26 tonnes/ha, and the potential for CO2 absorption at plants amounting to 3,540,455.15 tonnes/ha on shrub vegetation in the district Aceh Besar.
Open space function in plaza area in Central Java Great Mosque
Authors: Hamdani A M , Suprapti A , Rukayah R S 
Published: January 2021

Abstract
The plaza area at the Great Mosque of Central Java is a non-green open space of the Central Java Grand Mosque building complex. The Plaza area has an important role in the building, because the plaza area at the mosque is the first place we meet, and becomes the center of circulation and socio-religious activities for visitors. Thus, it is necessary to design a plaza area at the Grand Mosque of Central Java which considers all aspects. Open space has a role as a container that can accommodate certain activities of the community in certain areas, therefore open space has a contribution to be given to humans in the form of positive impacts. This research was conducted at the Grand Mosque of Central Java using qualitative-descriptive methods. This research focuses on studies in the plaza area of the Grand Mosque of Central Java in terms of open space functions. The results of this study, in the plaza area at the Great Mosque of Central Java, show that it has not fulfilled both as a general function of open space and an ecological function.