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Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan
Published by Universitas Diponegoro
ISSN : 1907817X     EISSN : 25500023     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Arjuna Subject : -
Articles 587 Documents
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Life Cycle Assessment of the Campus Wastewater Treatment Using the Lab-scale of Anaerobic Baffled Reactor Aziz, Hafif Ahmad Abdul; Yulistyorini, Anie; Rifai, Ridwan Muhamad; Hamzah, Sofiah
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.528-546

Abstract

In Indonesia, the waste sector is responsible for 10.59% (130,188.21 GgCO2e) of global warming emissions, one of which is from campus domestic wastewater due to the lack of wastewater treatment plants. Only 0.2% of the 6,472 campuses have treatment systems, such as Universitas Negeri Malang (UM) use a fabricated anaerobic baffled reactor (FABR) for wastewater treatment plants for its green campus initiatives, yet available only for several buildings and do not treat all wastewater generated from the campus activity. However, Life Cycle Assessment (LCA) of ABR system has not been widely studied, especially when it uses in treating of the campus wastewater. This study aims to conduct the LCA of the laboratory -scale ABR system in the campus wastewater treatment with gate-to-gate scope using Simapro 9.1.11 and the CML-IA Baseline. Three scenarios were tested: untreated wastewater, ABR equipped with peristaltic pumps, ABR without pumps. The results indicated that ABR treatment had a significantly lower environmental impact than untreated wastewater, with the greatest reduction in global warming potential (1.51E-08 to 4.98E-11), followed by eutrophication and photochemical oxidation. This study is limited to the ABR system, future research could expand to include the full lifecycle, from material collection to final results. 
The Effect of adding Coconut Shells and Corn Husk to Biobriquettes from Fish Bone Waste Nindyapuspa, Ayu; Setiani, Vivin; Firnanda, Dhea Ayu
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.393-404

Abstract

Biomass generates a large amount of waste. One of these is fish bones, corn husks, and coconut shells. Fish bone waste has the potential to be used as biobriquettes because it contains 10.16% carbon. To maximize the potential of fish bone waste, it should be mixed with corn husks and coconut shells. In addition, more calories can be added to the biobriquettes.  In the manufacture of biobriquettes, pyrolysis temperature also affects the quality of the resulting biobriquettes. The purpose of this study was to determine the quality of biobriquettes with a mixture of fish bones, corn husks, and coconut shells at 5000C and 3500C. The compositions of the biobriquette materials used in this study were 100% fish bone waste, fish bone:coconut shell waste (50:50), and fish bone waste:corn husk (50:50). The results of the study showed that biobriquettes with a mixture of fish bones and coconut shell 50:50 at a pyrolysis temperature of 350 °C had the best quality according to SNI 01-6235-2000 concerning wood charcoal briquettes. The water content and calorific value were 1.93% and 5,913.6 cal/g, respectively. The addition of coconut shells and corn husks affected the characteristics of biobriquettes made from fish bone waste. 
Utilization of Tofu Wastewater as a Fish Supplement: Impact on Fish and Economic Analysis Aufa, Muhammad Azri; Utama, Gemilang Lara; Mansyur, Mansyur; Subhan, Ujang; Sukarman, Irwa Sukma bin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 3 (2025): November 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i3.950-963

Abstract

Tofu liquid waste produced by the tofu industry in rural areas is often not reprocessed and has the potential to cause pollution if left untreated, so it is necessary to utilize tofu liquid waste which is the main idea in this research. The aim of this research is to analyze the potential for utilizing tofu liquid waste into fish supplements through the fermentation process with EM4 and Nitrobacter Plus and analyzing the economic and environmental benefits of utilizing tofu liquid waste into fish supplements. This research was conducted using an experimental method using a Completely Randomized Design (CRD) with 4 treatments and 3 replications. This research result showed that the provision of fish supplements from fermented tofu liquid waste has no significant effect on absolute weight growth, absolute length growth, specific growth rate, feed conversion ratio and survival rate. Based on the results of the economic analysis, the utilization of tofu liquid waste as a fish supplement was considered economically feasible with a Benefit Cost Ratio (BCR) of 1.285, Net Present Value (NPV) of Rp. 16,320,630,763 and Return on Investment (ROI) of 48.4%.
Evaluating Household Solid Waste Sampling: Is an Eight-Day Consecutive Method Necessary? A Preliminary Study Pratama, Mochamad Adhiraga; Wahyuningsih, Ni Putu Sri; Putri, Naila Syafiya
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.497-509

Abstract

Household solid waste sampling is a critical part of solid waste management planning, as the results determine the design of the required infrastructure. However, the method suggested by the Indonesian national standard requires time and high costs, as it must be carried out for eight consecutive days. Hence, it is necessary to evaluate this requirement and design a more efficient sampling design without compromising the results. The study conducted solid waste sampling for 16 consecutive days from 31 middle-income households in Jakarta, the Capital City of Indonesia, resulting in a pool of 16 consecutive daily averages of solid waste generation per capita data. From this pool, we generated: (1) solid waste generation per capita from eight consecutive days, (2) six consecutive days, (3) four consecutive days, and (4) eight non-consecutive days data. The results showed that the average of solid waste generation per capita for datasets (1), (2), (3), and (4) are 0.505 (± 0.022) kg/day/cap, 0.495 (± 0.044) kg/day/cap, 0.501 (± 0.035) kg/day/cap, and 0.492 (± 0.02) kg/day/cap consecutively, indicating the same estimates of solid waste generation per capita can be achieved by four scenarios.
Environmental Factors Associated with Pulmonary Tuberculosis in Martapura’s Primary Health Center Rosadi, Dian; Lasari, Hadrianti Haji Darise; Tazkiah, Misna; Fadillah, Ahmad; Sepira, Yuli; Maulidah, Siti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.476-484

Abstract

Pulmonary TB continues to be a health problem as it is the leading cause of death and ranks 10th in the world. The number of TB cases in South Kalimantan Province reached 5,636. Based on district/city, the highest number of TB cases was in Banjarmasin City with 868 cases, followed by Banjar Regency with 817 cases and Banjarbaru City with 483 cases, while the lowest number was in Balangan Regency with 187 cases. The purpose of this study was to analyse the relationship between ventilation, floor type and lighting with the incidence of pulmonary tuberculosis in the working area of Martapura 1 primary health center, Banjar Regency. This study was an observational analytical study with a case-control design approach. The study population consisted of 90 respondents, 30 people as cases and 60 people as controls. There was an association between ventilation (p-value = 0.03, OR 95% CI 4.5) and the incidence of pulmonary TB. Floor type (p-value = 0.211) and lighting (p-value = 0.577) were not associated with the incidence of pulmonary TB in Martapura 1 Health Centre.
Innovative Pyrolysis Reactor for Liquid Smoke, Activated Carbon, and Limestone Production Naswir, Muhammad; Lestari, Intan; Jalius, Jalius; Natalia, Desfaur; Wibowo, Yudha Gusti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.360-379

Abstract

This study presents the development and application of an innovative 3-in-1 nanotechnology pyrolysis reactor designed to simultaneously produce liquid smoke, activated carbon, and limestone from locally sourced raw materials in Jambi Province, Indonesia. The multifunctional reactor combines three production processes, which are traditionally performed separately, into a single, efficient unit, addressing both economic and environmental challenges. Coal serves as the primary heat source and material for activated carbon, whereas shell waste is calcined to produce limestone. The reactor operates at temperatures exceeding 550°C to ensure optimal conversion, with a glass wool insulator replacing clay to enhance thermal efficiency. The liquid smoke undergoes further distillation to achieve purification, while residual activated carbon is chemically activated with H₃PO₄ to enhance its adsorption capacity. The experimental results demonstrate that this reactor can produce high-quality products with minimal resource wastage. This 3-in-1 pyrolysis reactor represents a sustainable, cost-effective solution for resource-limited settings, with broad potential for application in waste-to-product conversion, environmental remediation, and rural development.
The Potential of Spent Bleaching Earth In Charcoal Briquettes as Energy Source Tarigan, Enda Rasilta; Mirnandaulia, Meutia; Mustakim, Mustakim; Sitinjak, Anna Angela; Purba, Darry Christine Silowaty; Karo-Karo, Justaman Arifin; Silalahi, Meriahni; Fitri, Li Idi'il; Anwar, Dedy
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.380-392

Abstract

Eco-friendly alternative fuels encourage the use of waste biomass as a material for making briquettes. This study aimed to develop briquettes from rice husk biomass and peat moss and add spent leaching earth (SBE). SBE is a hazardous and toxic waste increasingly piling up in landfills. The research method involved carbonizing rice husks and peat moss, mixing them with SBE, molding with a 200 kg/cm2 Hydraulic Press, and drying. The resulting briquettes had an average water content of 5.86% and an ash content of 2.18%, which meet the SNI No. 01/6235/2000 standard. Morphological analysis revealed that the briquettes were round but exhibited non-homogeneous aggregation. The highest calorific value was found in C4 briquettes of 5030.17 cal/gr. The composition of C4 was 40% rice husk charcoal (4.8 g), 45% peat (5.4 g), and 15% SBE (1.8 g), with SBE dried for seven days. The addition of peat increased the calorific value of the briquettes. Based on scanning electron microscopy (SEM)/ energy-dispersive X-ray (EDX) analysis, the carbon content in the C4 briquettes reached 72.2%. This study shows that the combination of rice husk charcoal, SBE, and peat provides a renewable energy source and contributes to the reduction of environmental waste, thereby promoting sustainability. 
Land Use Change Impact on Erosion and Sedimentation in Kreo Sub-Watershed, Central Java Napitupulu, Ruth Erditha; Andawayanti, Ussy; Bisri, Mohammad; Putra, Rizky Almarendra Wirawan
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 3 (2025): November 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i3.820-836

Abstract

Ministry of Forestry has designated Kreo Sub-watershed, part of Garang Watershed, a critical area due to high erosion rates contributing to flooding in Semarang. Rapid land use changes accelerate environmental degradation, increasing erosion and sedimentation risks. This study measures erosion and sedimentation rates in Kreo Sub-watershed using SWAT (Soil and Water Assessment Tool), determines Erosion Hazard Index, and proposes erosion control solutions based on Land Rehabilitation and Soil Conservation Analysis (ARLKT) with vegetative conservation. ARLKT approach includes simulating new land use scenarios to assess their impact on erosion reduction. To ensure SWAT modelling accurately represents field conditions and not overestimate, allowing conservation recommendations based on ARLKT applied appropriately, a field-based sedimentation analysis also conducted. The study utilizes rainfall, soil type, slope, and land use data in 2019 and 2024 from satellite imagery and validated using a confusion matrix. Results indicate a shift in Erosion Hazard Index from predominantly ‘Moderate’ in 2019 to ‘High’ in 2024, underscoring urgent need for sustainable watershed management. By integrating remote sensing, field validation, and hydrological modeling, this study offers a precise, data-driven approach to erosion control. The findings serve critical reference for policymakers in developing effective conservation strategies to enhance watershed resilience.
Life Cycle Analysis of Coal and RDF Utilization as Energy Sources for Industry: A Comparative Study of Environmental Impacts Nurseta, Dimastyaji Yusron; Bigita, Adora Salsa; Damayanti, Alvina; Nugroho, Aprianto Tyas Dwi; Andini, Aulia Mutiara; Firdausi, Bq. Nurul Maghfira Agni; Wati, Hessy Rahma
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.330-348

Abstract

This study utilized an LCA approach to comparatively analyze the environmental impact of using coal and RDF as industrial energy sources. Coal, which constitutes the foundation of Indonesia's economy and its primary energy source, has resulted in substantial emissions. In response to this challenge, RDF has emerged as a promising alternative fuel made from municipal waste with a calorific value equivalent to coal. The findings of this research consistently demonstrate that RDF exhibits a considerably diminished environmental impact profile in comparison to coal, across a wide range of evaluated impact categories. For instance, RDF contributes a mere 2% to terrestrial and freshwater aquatic ecotoxicity, whereas coal contributes 98%. RDF exhibits a minimal contribution to acidification potential, eutrophication, ozone depletion, and human toxicity. The novelty of this research lies in its in-depth comparative analysis of the environmental impacts of coal and RDF using LCA with gate-to-gate boundaries, as well as the identification of key impact points (hotspots) in each energy production process. These findings serve to reinforce the argument that RDF is a more sustainable and environmentally friendly energy option for Indonesia's industrial sector.
The Relationship Between Food Waste Management and Fly Density Level at Padang Restaurants in Tembalang District, Semarang City Paramitha, Sekar Sandya; Sulistiyani, Sulistiyani; Dewanti, Nikie Astorina Yunita; Suhartono, Suhartono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.464-475

Abstract

Padang restaurants have become one of the favorite places for residents of Tembalang District because of the distinctive taste of the food they serve. However, many Padang restaurants have not managed their waste properly. This study aimed to determine the relationship between waste management and fly density levels at Padang restaurants in the Tembalang District. This was an analytical study with a cross-sectional design. The study was conducted from October to December 2023. The research sample consisted of 45 Padang restaurants selected using total sampling technique. The results show that most food waste comes from customer plate waste (60%) with rice being the most wasted food type (37.8%). The majority of restaurants have a relatively poor waste sorting category (68.9%) but mostly the waste containers meets the requirements (75.6%). Fly density levels in Padang restaurants mostly are still categorized as high (53.5%). Waste containers is associated with fly density levels (p=0.030), while waste sorting is not associated with fly density levels (p=0.057). It could be concluded that waste containers without lids with insufficient capacity are associated with fly density levels at Padang restaurants in Tembalang District.

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