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Eko Siswoyo, Ph.D.
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Jurnal Sains & Teknologi Lingkungan
Published by Universitas Islam Indonesia
ISSN : 20851227     EISSN : 25026119     DOI : -
Core Subject : Science, Education,
Computer Science & IT Education
Jurnal Sains & Teknologi Lingkungan (JSTL) published twice a year in January and June is a scientific journal that publishes scientific research papers and ideas in the field of science and technology related to environmental issues. The journal covers typical subjects of environmental sciences and technologies such as.: Drinking water treatment, wastewater treatment, solid waste treatment, solid waste management, cleaner production, air pollution management, resource recovery, water pollution, soil contamination, and other relevant fields. JSTL published by the Islamic University of Indonesia (UII) only accepts original scientific works that have not been published by other medias. All incoming articles will be reviewed in advance by competent reviewers before being eligible for publication. JSTL (e-ISSN 2502-6119) has been accredited by Ministry of Research, Technology and Higher Education of the Republic of Indonesia.
Arjuna Subject : -
Articles 4 Documents
 1 
Search results for , issue "Vol. 17 No. 2 (2025): SAINS " : 4 Documents clear
Pengolahan Air Embung Alam Tampungan Hujan Morowudi dengan Kombinasi Pretreatment Geotekstil dan Teknologi Filtrasi Yohanita Anggraini, Viona; Pungut, Pungut; Widyastuti, Sri; Nur Rohim, Imam; Ratnawati, Rhenny
Jurnal Sains & Teknologi Lingkungan Vol. 17 No. 2 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss2.art1

Abstract

There has been an exceedance of water quality standards in the Morowudi Village reservoir. Therefore, treatment using a combination of geotextile pretreatment and filtration is required. The objective of this study is to determine the reduction in turbidity, color, and total coliform concentrations in the Morowudi reservoir water and to identify the most optimal efficiency of each variation in reducing turbidity, color, and total coliform concentrations. The turbidity, color, and total coliform concentrations of Morowudi reservoir water were 84.9 NTU, 251 TCU, and 730,000 CFU/100 mL, respectively. This laboratory-scale study used geotextile pretreatment as the initial filter, followed by filtration. The geotextile pretreatment reactor is a cylindrical tube with dimensions of 40 cm x 50 cm. Treatment is conducted in stages from the geotextile pretreatment reactor to filtration. The filtration reactor has a length of 10 cm, width of 10 cm, and height of 90 cm. In the filtration reactor, variations in the height of silica sand, zeolite, and activated carbon media are tested. In variation 1, the heights of the silica sand, zeolite, and activated carbon media were 30 cm, 20 cm, and 20 cm, respectively. In variation 2, the heights of the silica sand, zeolite, and activated carbon media were 20 cm, 30 cm, and 20 cm, respectively. Based on the research results, in variation 1, the average reduction in turbidity concentration was 19.39 NTU with a reduction percentage of 77.16%, color concentration was 85.40 TCU with a percentage of 65.98%, and total coliform was 2.60%. In variation 2, the average reduction in turbidity concentration was 25.08 NTU with a percentage of 70.46%, color concentration was 98.55 TCU with a percentage of 60.74%, and total coliforms were 633,000 CFU/100 mL with a percentage of 13.29%. The treatment results in this study did not meet the hygiene and sanitation water quality standards.
ANALISA DEBIT LIMPASAN PADA PERENCANAAN SISTEM DRAINASE BERWAWASAN LINGKUNGAN DI KECAMATAN PASIRJAMBU DAN KECAMATAN CIWIDEY, KABUPATEN BANDUNG: indonesia Amaliah, Khairunnajah; Astono, Widyo; Siami, Lailatus
Jurnal Sains & Teknologi Lingkungan Vol. 17 No. 2 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss2.art2

Abstract

Ecodrainage planning in Pasirjambu District, Ciwidey District. In 2017 the district experienced a fairly high rain intensity and there was a change in the function of the forest area in the upstream area, so that the Ciwidey Sub-watershed experienced an overflow. To overcome this problem, an environmentally friendly drainage is planned by adding complementary structures, namely a reservoir pool as a flow barrier. The available surface runoff discharge is 11.68 m3/s at outlet S.8. The discharge will be reduced by 8 m3/s into the reservoir with a storage volume of 2,208 m3. Meanwhile, another reservoir originating from the Ciwidey River with a discharge of 21.007 m3/s requires a storage volume of 210.07 m3. The water stored in the embung will be used for irrigation purposes, so that this reservoir can reduce areas prone to flooding and prone to inundation but can also increase rice production as a livelihood for the community.
PEMODELAN SISTEM DINAMIS PENGELOLAAN SAMPAH PESERTA KELAS BELAJAR ZERO WASTE MELALUI PRINSIP 3AH (CEGAH, PILAH, DAN OLAH): indonesia Hidayah, Nurul
Jurnal Sains & Teknologi Lingkungan Vol. 17 No. 2 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss2.art3

Abstract

The waste management problem in Indonesia continues to escalate alongside population growth and urbanization, with waste generation reaching 68 million tons annually, including 15% plastic waste that is difficult to decompose. This study aims to analyze community-based waste management through a system dynamics modeling approach applied to participants of the Zero Waste Learning Class (BZW), which adopts the 3AH principles (Prevent, Sort, Process). Using Causal Loop Diagram (CLD) and Stock and Flow Diagram (SFD), this study maps the interactions between variables such as the number of participants, environmental literacy, waste generation, and the effectiveness of prevention, sorting, and processing activities. Data was collected through surveys of 492 BZW alumni and secondary data on waste management. Simulations were performed using Powersim Studio 10 software, with model validation conducted using the Absolute Mean Error (AME) method, yielding an error rate of 2%, indicating a valid model. This study examines four policy scenarios: Business as Usual (BAU), improved environmental literacy, enhanced waste prevention, and optimized waste processing. The simulation results show that the optimal scenario is increasing the capacity for organic and inorganic waste processing, which successfully reduced residual waste to -56.87 tons by 2030. Furthermore, the amount of sorted waste reached 100% of the generated waste. This study concludes that the system dynamics modeling approach is effective in supporting strategic decision-making for community-based waste management and provides recommendations to enhance environmental literacy and waste processing efficiency to achieve sustainability.
Karakteristik Sampah dan Produk Kompos dari Kawasan Perumahan: Indonesia Widayanti, Rini; Siswoyo, Eko
Jurnal Sains & Teknologi Lingkungan Vol. 17 No. 2 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss2.art4

Abstract

Waste management has become a serious problem across all urban areas in Indonesia, where the main issue is the lack of treatment at the source. One of the best solutions to process waste is at the source, for example, through composting. This study aims to design a compost reactor and analyze the nitrogen (N), phosphate (P), potassium (K), and C/N ratio of the composting products. In this study, the material used was household organic waste from the Griya Taman Asri Housing Residence Block F, which had been sorted into three categories: organic, inorganic, and non-3R. The composting process was carried out aerobically with the addition of EM4 starter, using a plastic drum reactor with holes on each side. Inside the drum, a pipe with holes was installed, while a filter and tap were placed at the bottom. During fermentation, temperature and pH were measured every 3 days. After calculating the amount of waste generated, a reactor with a capacity of 60 liters was produced. The N content was 1.821%, P was 1.131%, K was 3.516%, and the C/N ratio was 19.97, with a compost maturation period of 22 days. Based on the N, P, and K content of the compost product, compared with the N, P, and K content standards of the SNI compost quality standard and market compost quality standards, the compost produced in this study is considered of good quality.

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