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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 627 Documents
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Biodrying Performance and Greenhouse Gas Emissions through Hot Air Aeration in Solid Waste Conversion Badrus Zaman; Nurandani Hardyanti; Wiharyanto Oktiawan; Budi Prasetyo Samadikun; Purwono Purwono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Article in Press 2026 (For Upcoming Issue)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Biodrying can convert solid waste into Refuse Derived Fuel (RDF) as an alternative to fossil fuels. The conversion of solid waste to RDF with a moisture content of 10-30% generally takes 21 days. This study aims to analyze greenhouse gas emissions and biodrying performance by applying hot air aeration to accelerate solid waste conversion into RDF. Laboratory-scale investigation used a bio-drying reactor and a solid waste mixture. Hot air was produced by burning wood charcoal (X1) and mixture of wood charcoal and sawdust (X2). The research showed that hot air aeration systems are more efficient and effective at converting solid waste into RDF. Water content of solid waste reduce from 50% to 34.29% after 60 minutes at 47-80oC. N2O emissions were lower when the hot air source came from burning X1. CO2 emissions were lower when the hot air source came from burning X2. The amount of electrical power required to burn one kg of X1 and X2 is 0.0135 and 0.018 kWh, respectively.
Linking Degree of Deacetylation to Coagulation Efficiency of Crustacean Waste Chitosan in Water Treatment Sinardi Sinardi; Ismail Marzuki; Asriadi Asriadi; Andi Sry Iryani; Faisal Riza Basalamah; Andi Irsyam Mansyur; Hardimas Prayudi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Turbidity removal remains challenging because stable colloids resist sedimentation, motivating the use of biodegradable coagulants such as chitosan derived from crustacean waste. However, an integrated quantitative linkage between the degree of deacetylation (DD), zeta potential evolution, and dose-dependent turbidity removal across pH is still limited for shell waste-derived chitosan. This study aimed to relate DD to the zeta potential behavior and coagulation efficiency of chitosan derived from green mussel, crab, and shrimp shells at pH 5, 7, and 9. At pH 7, shrimp-shell chitosan (DD 89.05%) achieved 98.38% turbidity removal at 190 mg/L, crab-shell chitosan (DD 87.64%) achieved 96.72% at 320 mg/L, and green mussel chitosan (DD 77.80%) achieved 95.08% at 300 mg/L [mean±SD, n=3].  The zeta potential shifted from −0.81 mV (untreated synthetic water) to +1.43 to +2.80 mV after dosing, indicating dominant charge neutralization with partial overcompensation. Overall, DD provides a practical screening descriptor for selecting locally sourced chitosan and optimizing the dose for sustainable turbidity control. Valorizing shell waste into effective coagulants may reduce the reliance on inorganic coagulants and support environmentally responsible water treatment practices. This study established an integrated DD zeta potential dose relationship across pH to explain and compare the coagulation performance of locally sourced shell-waste chitosan for turbidity removal. 
Sustainability Analysis of Black Soldier Fly Cultivation in Mojokerto City using Multidimensional Scaling-Rapfish Lilis Sugiyarni; Nuhfil Hanani; Bunga Hidayati; Dini Atikawati; Nazilatul Azizah Mohd Radzi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Urban organic waste remains a major environmental challenge in developing cities worldwide. It constitutes the bulk of municipal waste streams, primarily the organic fraction, including household food waste and organic market scraps, and contributes significantly to greenhouse gas emissions. BSF larvae bioconversion offers a nature-based solution that can reduce organic waste while producing valuable biomass for circular bioresource systems. However, research that quantitatively evaluates the multidimensional sustainability of community-based BSF cultivation programs at the city level, particularly in Indonesia, is limited. This study evaluated the sustainability of the BSF cultivation program in Mojokerto City using MDS-RAPFISH, which encompasses five dimensions: environmental, economic, social, institutional, and technological. An indicator-based assessment utilizing conceptual modelling and policy analysis determined the program’s sustainability status and leverage attributes. The overall sustainability index was 54.22, which indicates moderate sustainability. The highest score was recorded in the environmental dimension (74.97). The subsequent dimensions were social (66.34), institutional (65.82), technological (61.70), and economic (60.92). These results show that there are constraints in terms of community participation, institutional support, technological consistency and market integration. The results show that although BSF cultivation has significant environmental benefits, it needs to be supported more technically and economically to be sustainable
Enhancing Stabilized Leachate Treatment with C. comosum, E. palaefolius, and E. hyemale in Constructed Wetlands Imam Nur Nur Rohim; Bimo Tri Goutomo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Stabilized landfill leachate is challenging to treat because of its high content of refractory organic matter and low biodegradability (BOD/COD ratio <0.16). This study investigated the performance of three ornamental plants, C. comosum, E. palaefolius, and E. hyemale, in laboratory-scale subsurface-flow constructed wetlands for treating stabilized leachate from the Ngipik Landfill, Gresik, Indonesia. The experiments were conducted under batch conditions with a hydraulic retention time (HRT) of 9 days. The treatment efficiency was evaluated based on the removal of BOD, COD, TSS, and TN. E. palaefolius achieved the highest COD and TSS removal efficiencies of 46.92% and 99.36%, respectively. The greatest COD reduction was observed in E. hyemale (63.30%), whereas C. comosum showed the highest TN removal efficiency (93.01%). Despite significant reductions in pollutants, only the TSS concentration in the treated effluents (2-12 mg/L) met the 100 mg/L discharge standard. BOD, COD, and TN levels remained above the regulatory limits. The results indicate that these ornamental plants are suitable for leachate pre-treatment, although longer retention times or additional treatment processes are required to achieve full compliance with environmental standards.
Performance Study of Glassfibre Reinforced Concrete (GRC) with Ferric Oxide Waste Additive Vivin Setiani; Wiwik Dwi Pratiwi; Denny Dermawan; Luqman Cahyono; Mohamad Hakam; Ryan Yudha Adhitya; Mochammad Karim Al Amin; Nur Fajar Aprilia Sari; Wanda Cahyaning Ati; Lina Indawati
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Portland cement production is a major contributor to carbon emissions in the construction sector because the high-temperature calcination process produces CO₂ emissions that are nearly equivalent to the mass of cement produced. This study focuses on evaluating the potential of ferric oxide waste material in glass fiber-reinforced concrete as a filler to reduce carbon emissions, making it more environmentally friendly. An experimental method was used with a 1:1 binder-to-aggregate ratio and a constant 3% glass fiber addition. The percentage of ferric oxide replacement in the cement was 0–40%. X-ray fluorescence, X-ray diffraction, particle size distribution analysis, sand gradation testing, and mud content were used to obtain the material data. Tests were also conducted to determine compressive strength, flexural strength, water absorption, and dry and wet bulk density. Based on the results obtained, the addition of ferric oxide improved the mechanical properties of glass fiber-reinforced concrete and added to the aesthetic value of the final product. These findings indicate that the application of Glassfibre Reinforced Concrete is environmentally friendly
Performance of Bioactivators in Organic Waste Composting: Takakura and Composter Bag Sri Sumiyati; Bimastyaji Surya Ramadan; Budi Prasetyo Samadikun; Anik Sarminingsih; Mochamad Arief Budihardjo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Article in Press 2026 (For Upcoming Issue)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Population growth has significantly increased organic waste generation, requiring sustainable solutions like composting. This exploratory study evaluated the treatment-specific effectiveness of various bioactivators—EM4, biowash, ecoenzyme, and fermented stale rice solution—using Takakura and composting bag methods, with un-activated setups as controls. Composting was conducted for 42 days by monitoring physical and chemical parameters. Results showed that final physical characteristics and pH values (6.0–7.4) across all treatments complied with the Indonesian National Standard (SNI 19-7030-2004). Descriptive comparative analysis revealed that the combinations distinctly influenced final nutrient qualities. In the composting bag system, ecoenzyme performed best, achieving the most optimum and stable C/N ratio of 19.67 along with superior nitrogen retention (1.461%). Conversely, in the Takakura system, the fermented stale rice solution provided better organic matter stabilization compared to EM4 and control setups. Direct container-method comparison was valid only for the shared treatments (EM4 and Control), where the composting bag system exhibited better temperature and moisture stability, minimizing nutrient loss compared to the Takakura method. Ultimately, specific container-bioactivator pairings offer practical and sustainable alternatives for household and community-scale organic waste management.
Flood Risk and Economic Loss Assessment in the Lower Citarum Basin Using InaSAFE Rahmah Dara Lufira; Suwanto Marsudi; Ussy Andawayanti; Ery Suhartanto; M. Amar Sajali; Rizki Ramadhani Pratama
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

The hydrometeorological hazard of flooding in the Lower Citarum River Basin constantly affects agricultural sustainability, infrastructure, settlements, and regional economic activities. This study used InaSAFE to model human exposure and economic losses due to flooding under a 50-year return-period scenario. Flood depths were classified as >1.5 m (high), 0.76–1.5 m (medium), and ≤0.76 m (low) and then overlaid with spatial layers of population, land cover, roads, and buildings. The results revealed 1,739,195 exposed individuals, with 1,067,442 requiring evacuation support from medium-to high-depth classes. The different types of land cover exposed to floods cover 126,413 ha, mainly agricultural areas. The minimum humanitarian relief needs are US$ 88.00 million. The losses from buildings and public facilities totaled USD 616.51 million, and for road infrastructure, they amounted to USD 1.23 million, providing a subtotal of primary direct losses of USD 894.67 million. Additional proxy-based elements raised the stretched notional economic-loss estimate to USD 2.64 billion. These results offer a baseline for additional studies on flood-risk reduction and future scenario-based analyses of possible mitigation alternatives; they are not an explicit evaluation of the hydraulic or economic effectiveness of the Cijurey Dam.
Environmental Valuation of Mobile MBBR Reactor for Wastewater Management in Non-Rural Area Nurvita Cundaningsih; Rizka Novembrianto; Kabul Fadilah
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Domestic waste remains a problem in Ngagel Rejo Village, Surabaya City, where the community is largely composed of small medium enterprises (SMEs) food traders. This study aims to assign an economic value to domestic waste management services that are not traded in the market. The benefits of deploying a mobile Moving Bed Biofilm Reactor (MBBR) will be estimated to determine the economic value of WWTP siting and to develop a retribution (user-fee) scheme for domestic waste management, particularly for the food waste consortium. A Contingent Valuation Method (CVM) will be used to elicit willingness to pay (WTP) from WWTP users as a measure of the non-use benefits of this public service and its role in reducing the impacts of domestic waste. The analysis yielded a mean WTP value of 3.6827 (as measured in the survey), which corresponds to a recommended fee of IDR 69,496.00 per month for domestic waste management services using a mobile MBBR reactor. Key factors influencing WTP include community commitment to environmental preservation programs and support for the program, consistent with the idea that public engagement strengthens the sustainability of environmental initiatives
Improving Low Carbon Development Performance at the Local Level through Multi Criteria Decision Analysis Fariz Basyiruddin; Arief Rachmansyah; Bunga Hidayati; Reny Tiarantika; Naziatul Aziah Mohd Radzi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Climate change necessitates immediate local interventions to guarantee environmental stability. Notwithstanding emission target agreements, Mojokerto Regency’s contribution to regional low-carbon development is less than 1%, indicating minimal influence. This study examines the enabling and constraining factors of low-carbon performance and establishes strategic priorities using the Analytical Hierarchy Process (AHP), corroborated through a Cost-Effectiveness Analysis (CEA). Data were gathered through expert interviews, pairwise questionnaires, and a regional fiscal analysis. The findings demonstrate that structural limitations, such as constrained resources and data deficiencies, impede implementation, whereas multi-stakeholder interaction serves as a key facilitator. AHP designated Community Engagement as the key choice criterion (31.32%). Thus, waste management using TPS3R was prioritized at 26.12%, followed by tree planting at 20.09% and organic fertilizer at 13.88%, together comprising 60.09% of choice preferences. CEA validates these findings, indicating that prioritized community-based methods provide enhanced fiscal efficiency, substantial landfill cost savings, and local job creation. They surpass capital-intensive alternatives, such as Intelligent Transportation Systems (ITS/ATCS), which provide minimal carbon value. This report advocates for the reallocation of municipal finance to prioritize community empowerment and nature-based initiatives, underpinned by institutional legislation that requires data sharing for Measurement, Reporting, and Verification (MRV) systems to facilitate an economically sound and socially equitable shift
Analysis of Carbon Emission Mitigation Potential from Solid Waste Management at Campus Environment Vivin Setiani; Ulvi Priastuti; Ahmad Erlan Afiuddin; Mar’atus Sholihah; Denny Dermawan; Mirna Apriani; Dewi Kurniasih; Agus Khumaidi; Aulia Della Cornellia; Lina Indawati; Sekarsari Wibowo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Greenhouse gas emissions from waste management contribute to climate change, including in higher education institutions. This study aimed to evaluate the potential for carbon emission mitigation from waste management at the Politeknik Perkapalan Negeri Surabaya campus through organic waste composting and inorganic waste recycling using a waste bank system. The application of solid waste generation measurement was combined with the Intergovernmental Panel Climate Change guidelines and SNI 3964:2025. A descriptive quantitative approach was employed, utilizing primary data on solid waste characteristics from selected campus buildings. Baseline emission estimates and mitigation scenarios were used, assuming partial implementation of the 3R program: organic waste composting and recycling. The results indicate that the waste management sector produces approximately 5.44 tons of CO₂ per year, and the proposed emission reductions could reduce emissions by approximately 63%. The findings of this study indicate that integrated waste management has significant potential for reducing carbon emissions and supporting the development of low-carbon campuses aligned with Sustainable Development Goals 12 and 13, despite the methodological limitations related to the assumptions of emission factors and the level of implementation

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