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All Journal Environmental Pollution Journal Loka: Journal Of Environmental Sciences
Winda Islamiyah Umarie
Universitas Muhammadiyah Jember
Humanities Chemistry Earth & Planetary Sciences Engineering Environmental Science Law, Crime, Criminology & Criminal Justice

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Identication of Types and Characteristics of Hazardous Waste at Campus X Bela Pitaloka; Musarofa; Yuvita Dian Siswanti; Rusdiana Setyaningtyas; Winda Islamiyah Umarie
Environmental Pollution Journal Vol. 6 No. 2: July 2026
Publisher : ECOTON: Ecological Observation and Wetlands Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58954/epj.v6i2.501

Abstract

Hazardous and toxic waste (B3 waste) management in higher education environments isimportant to prevent environmental pollution and health risks caused by improper wastehandling. Campus operational activities, laboratories, ofces, and facility maintenance activitieshave the potential to generate various types of hazardous waste that require proper managementaccording to environmental regulations. This study aimed to identify the types, characteristics,sources, and generation of B3 waste produced at Campus X. The research used a descriptiveobservational method through direct eld observations, waste generation measurements forseven consecutive days, documentation, and short interviews during the observation process.The results showed that hazardous waste generated at Campus X originated from laboratoryactivities, ofce activities, campus operational activities, and equipment maintenance. Theidentied waste types included electronic waste, used batteries, expired chemicals, infectiouswaste, uorescent lamps, and used hazardous waste packaging. The total hazardous wastegeneration during the observation period reached 57.53 kg with an average generation of 8.22kg/day. Most of the waste characteristics were classied as toxic, corrosive, infectious,ammable, and environmentally hazardous. The study also found that hazardous wastesegregation and temporary storage practices at Campus X were still not fully implementedaccording to technical standards. Therefore, improvements in waste segregation systems,provision of temporary storage facilities, and strengthening of hazardous waste managementpractices are necessary to support environmentally sustainable campus management.
Microplastic Abundance in Mangrove Sediments Based on Mangrove Density at Cemara Beach, Jember Debita Dwi Putri; Senki Desta Galuh; Winda Islamiyah Umarie; Latifa Mirzatika Al-Rosyid; Yuvita Dian Siswanti
Environmental Pollution Journal Vol. 6 No. 2: July 2026
Publisher : ECOTON: Ecological Observation and Wetlands Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58954/epj.v6i2.504

Abstract

Mangrove ecosystems play an essential ecological role in coastal environments by stabilizing sediments and trapping various pollutants, including microplastics. Increasing plastic waste generated by human activities has contributed to the accumulation of microplastics in coastal ecosystems, particularly within mangrove sediments. This study aimed to analyze microplastic abundance in mangrove sediments based on mangrove density in the mangrove area of Cemara Beach, Puger, Jember. Sediment sampling was carried out at four observation points representing different environmental characteristics and levels of human activity, namely tourism areas, residential areas, central mangrove zones, and areas remote from human activities. Microplastic abundance was determined by calculating the number of particles identified in each sediment sample and expressing the results as particles per gram of sediment. The findings revealed that microplastics were present at all sampling locations with a total abundance of 0.885 particles/gram. The highest abundance was recorded at the residential area (0.650 particles/gram), while the lowest abundance was found at the site far from human activities (0.019 particles/gram). Mangrove density varied among observation points and contributed to sediment retention; however, microplastic abundance was not determined solely by vegetation density. Human activities, particularly those related to settlements and tourism, appeared to play a substantial role in increasing microplastic inputs into the mangrove ecosystem. These findings highlight the ecological function of mangroves as natural traps for microplastics and emphasize the need for improved coastal waste management and mangrove conservation to reduce microplastic contamination in coastal environments.
Effectiveness of Filtration Systems Based on Silica Sand, Bagasse, And Activated Carbon With Varying Media Thicknesses on the Reduction of Ph, Cod, Tss, And Phosphate in Laundry Wastewater Pramesya Ramadhana Arifin; Yuvita Dian Siswanti; Rusdiana Setyaningtyas; Latifa Mirzatika Al-rosyid; Winda Islamiyah Umarie
Loka: Journal Of Environmental Sciences Vol. 4 No. 3 (2026): Loka: Journal Of Environmental Sciences (July – September 2026)
Publisher : PT. Keberlanjutan Strategis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38142/ljes.v4i3.407

Abstract

The growth of laundry businesses has led to an increase in the volume of wastewater containing detergents, organic matter, suspended solids, and phosphates, posing a potential environmental pollution risk if discharged without treatment. This study aimed to analyze the effects of varying the thickness of filtration media—composed of silica sand, bagasse, and activated carbon—and varying operational times on the reduction of pH, COD, TSS, and phosphate levels in laundry wastewater. A PVC-based gravity-flow (down-flow) filtration reactor was operated using three media composition variations: activated carbon-dominant (P1), bagasse-dominant (P2), and silica sand-dominant (P3), with operational times of 30, 60, and 90 minutes. The results indicated that variation P1 achieved the highest COD reduction efficiency (36.98%), while variation P3 yielded the greatest TSS reduction (98.18%). The pH levels of all effluents met the quality standards established by East Java Governor Regulation No. 52 of 2014. However, COD levels failed to meet the threshold across all treatments, and phosphate levels increased due to leaching from the bagasse media. Multiple linear regression analysis revealed that filtration media thickness significantly influenced effluent pH and TSS, whereas operational time did not have a significant partial effect on any of the parameters. As this filtration system could not simultaneously meet all quality standards, further treatment is required to enhance its effectiveness.
Co-Authors Bela Pitaloka Debita Dwi Putri Desta, Senki Latifa Mirzatika Al-Rosyid Musarofa, Musarofa Pramesya Ramadhana Arifin Rusdiana Setyaningtyas Siswanti, Yuvita Dian