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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Journal of Community Based Environmental Engineering and Management J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Mutmainnah, Elma
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Public Health Transportation Other

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Analysis of the Effect of Wastewater Quality on the Effectiveness of Eco-Enzyme Viareco, Hariestya; Yanova, Shally; Jalius, Jalius; Naswir, Muhammad; Dewi, Nabila Sastra; Mutmainnah, Elma; Ziadah, Besse Syaharani; Khatamsi, Muhammad; Putri, Prameswari Amalia; Zahra, Kintan Larasati; Wahyuni, Dini Sri; Meduripa, Harry Fajra; Iskandar, Jumary
Journal of Community Based Environmental Engineering and Management Vol. 9 No. 1 (2025): March 2025
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v9i1.20142

Abstract

Eco-enzyme represents a biological solution derived from the fermentation of organic materials, evaluated for its effectiveness in industrial wastewater treatment. This study examines  to investigate the effectiveness of eco-enzymes in improving the quality of industrial wastewater by analyzing their impact on four specific types of liquid waste: landfill leachate, tofu wastewater, batik wastewater, and laundry wastewater. Samples were treated with eco-enzyme at specific concentrations and incubated for 5 days, followed by chemical analysis. Eco-enzyme reduced ammonia levels in landfill leachate by 57% to 8.83 mg/L, though COD and BOD values rose to 18,114.6 mg/L and 46,709 mg/L, respectively, exceeding effluent standards. In tofu wastewater, COD and BOD decreased by 72% and 75% to 4,189.68 mg/L and 2,395.3 mg/L, respectively, but remained above regulatory limits. Batik wastewater showed increases in most parameters, with COD and BOD reaching 6,838.85 mg/L and 3,193.5 mg/L. For laundry wastewater, surfactants decreased by 55% to 12.97 mg/L, but BOD and TSS increased. These findings indicate that while eco-enzyme can reduce specific pollutants like ammonia and surfactants, its application can also elevate COD and BOD levels in some cases. Additional treatment processes, such as aeration or coagulation, are required to achieve effluent standards. Despite its limitations, eco-enzyme holds potential as an environmentally friendly option for industrial wastewater management when integrated with complementary technologies.
The Design of A Canteen Organic Waste Management System Using Black Soldier Fly at Universitas Jambi Mutmainnah, Elma; Jalius; Hutagalung, Winny Laura Christina
Jurnal Teknik Sipil dan Lingkungan Vol. 10 No. 1: April 2025
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.10.1.15-26

Abstract

Universitas Jambi adopted the Green Campus concept and joined the UI Green Metric as a commitment to environmental sustainability. One crucial step is the management of solid waste, particularly organic waste. In 2023, Universitas Jambi generated 835.7 kg of organic waste per day; however, its management at the Temporary Disposal Site remains suboptimal. This study aimed to measure the amount of organic waste from canteens in the Mendalo Campus area, evaluate the effectiveness of the Black Soldier Fly (BSF) method, and design a sustainable organic waste management system. The results show that the BSF method can reduce waste by up to 77.5%, with a Waste Reduction Index (WRI) of 5.16% and an Efficiency Conversion Degree (ECD) of 9.15%. BSF larvae have proven to be effective in processing various types of organic waste, making this bioconversion technique widely applicable at the Universitas Jambi. The proposed management system includes waste collection from sources, transportation, and processing using BSF to enhance the efficiency of organic waste management.
PM2.5 Temporal Pattern in Jambi City: Meteorological Drivers and Air Mass Trajectory Analysis Fajar, Benedy; Damris, Muhammad; Wiharja, Kemas Rahmat Saleh; Mutmainnah, Elma; Mohamad, Noorlin; Handika, Rizki Andre
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

Air pollution, particularly particles with diameter of less or equal than 2.5 micrometers (PM2.5), has become important global health and environmental problem. Jambi City in Sumatra is highly susceptible to this issue, both locally and particularly influenced by forest fires. As early studies were conducted over a short period, this study examined the meteorological factors that influenced PM2.5 levels and estimated the pollutant transport pathways over two years in the post-COVID-19 period (2023-2024). The methods employed were time-series analysis, scatter-plot evaluation, multiple linear regression analysis, and backward trajectory modeling using HYSPLIT. The results show that the average PM2.5 concentration in 2023 (30.53 µg/m³) was higher than in 2024 (25.36 µg/m³), with night-time levels generally exceeding day-time levels. 3.69% of the days exceeded Indonesia’s daily air quality standard, while 90.83% surpassed the stricter WHO guideline. Meteorological factors explained only 23–38% of PM2.5, with temperature positively correlated, wind speed showing mixed effects, and humidity and rainfall negatively correlated.. The major PM₂.₅ sources influenced by the southeast–South Sumatra, particularly South Sumatra, highlighting the strong stimulus of transboundary emissions alongside local sources. In the future, studies focusing on chemistry-based source apportionment are needed to accurately separate each contributing source.
Co-Authors Dewi, Nabila Sastra Fajar, Benedy Hariestya Viareco Hutagalung, Winny Laura Christina Iskandar, Jumary Jalius Jalius Jalius Kemas Rahmat Saleh Wiharja Khatamsi, Muhammad Meduripa, Harry Fajra Mohamad, Noorlin Muhammad Damris Naswir, Muhammad Putri, Prameswari Amalia Rizki Andre Handika Wahyuni, Dini Sri Yanova, Shally Zahra, Kintan Larasati Ziadah, Besse Syaharani