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All Journal Environmental Pollution Journal ABDIMASTEK Research in Education, Technology, and Multiculture
Kasih Imani Putri Sugiarto
Universitas Muhammadiyah Jember
Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering

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Phytoremediation of Tilapia (Oreochromis Niloticus) Aquaculture Wastewater Using Spirulina sp. Latifa Mirzatika Al-Rosyid; Musarofa Musarofa; Yuvita Dian Siswanti; Vania Zitha Amodia; Kasih Imani Putri Sugiarto
Research in Education, Technology, and Multiculture Vol 5, No 2 (2026): Research in Education, Technology, and Multiculture
Publisher : Institute of Multidisciplinary Research and Community Service

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61436/rietm/v5i2.pp109-120

Abstract

Tilapia (Oreochromis niloticus Linnaeus, 1758) aquaculture generates nutrient-rich wastewater containing ammonia, nitrate, and phosphate that may degrade receiving water quality and promote eutrophication. Microalgae-based phytoremediation has emerged as a sustainable alternative for nutrient removal while simultaneously producing valuable biomass. This study aimed to evaluate the effectiveness of Spirulina sp. in treating tilapia aquaculture wastewater and to assess its growth performance under different wastewater concentrations. A laboratory experiment was conducted using five treatments consisting of a negative control (wastewater without Spirulina), a positive control (Spirulina cultured in 100% Zarrouk medium as the optimum growth reference), and wastewater concentrations of 25% (P1), 50% (P2), and 75% (P3). Ammonia, nitrate, and phosphate concentrations were analyzed every two days. At the same time, the relative growth of Spirulina sp. was monitored daily, and chlorophyll content was determined at the end of the cultivation period. The positive control cultivated in 100% Zarrouk medium, representing the optimum growth condition, achieved the highest relative growth of 716.9% on day 9 and the highest chlorophyll content of 0,62 mg/L. In comparison, wastewater treatments resulted in lower physiological performance but demonstrated considerable phytoremediation capacity, with maximum removal efficiencies for ammonia, nitrate, and phosphate of 48.79%, 71.87%, and 55.68%, respectively. Moderate wastewater concentrations produced superior phytoremediation performance compared with higher wastewater loading, indicating that excessive nutrient concentrations reduced nutrient assimilation efficiency. Wastewater concentrations above the optimum level also suppressed the physiological performance of Spirulina sp., as reflected by lower relative growth and chlorophyll content. These findings demonstrate that Spirulina sp. is a promising eco-friendly phytoremediation agent for tilapia aquaculture wastewater and highlight the importance of optimizing wastewater concentration to achieve both high nutrient removal efficiency and sustainable microalgal growth. Keywords: Spirulina sp., Tilapia, Phytoremediation, Aquaculture, Wastewater
Projection of Transportation CO₂ Emissions and Local Biogas Potential in Jember Regency Rusdiana Setyaningtyas; Rohimatush Shofiyah; Kasih Imani Putri Sugiarto; Aida Khoirun Nisa
Environmental Pollution Journal Vol. 6 No. 1: April 2026
Publisher : ECOTON: Ecological Observation and Wetlands Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58954/epj.v6i1.462

Abstract

The daily transportation sector is a major source of air pollution and CO2 emissions in Jember Regency, driven by the growth of motorized vehicles and fossil fuel consumption. This study aims to project CO2 emissions from daily transportation and to assess the potential of local biogas as a renewable energy alternative for fossil fuel substitution. A quantitative approach based on secondary data was applied using multi-horizon projections for 2030, 2045, and 2060. Transportation-related CO2 emissions were estimated using the IPCC methodology for mobile combustion, while biogas potential was calculated from organic municipal waste, livestock manure, agricultural and plantation residues, and landfill methane using volatile solids–biochemical methane potential and first-order decay approaches. The results indicate that transportation emissions are projected to increase, while Jember Regency has significant local biogas potential, equivalent to 2.98–3.20 PJ of energy per year, indicating opportunities for partial fossil fuel substitution through a scenario-based approach.
Pembangunan Kolam Retensi Guna Mengatasi Masalah Kekeringan Di Dusun Plampang Desa Klekehan Kecamatan Botolinggo Kabupaten Bondowoso Senki Desta Galuh; Musarofa Musarofa; Jimi Amijaya; Totok Dwi Kuryanto; Yuvita Dian Siswanti; Levina Ardiningrum Hartadi; Kasih Imani Putri Sugiarto; Tiara Dwi Desfinta; Akmal Hisam Dani; Asroful Abidin
ABDIMASTEK Vol. 5 No. 1 (2026): Juli
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/abdimastek.v5i1.4954

Abstract

Indonesia merupakan negara agraris dengan sebagian besar penduduknya menggantungkan mata pencaharian pada sektor pertanian. Kondisi tanah dan iklim yang mendukung menjadikan Indonesia memiliki potensi pertanian yang besar. Namun, perubahan iklim yang tidak menentu dalam beberapa tahun terakhir menimbulkan tantangan serius bagi para petani. Curah hujan yang tidak stabil dan musim kemarau yang berkepanjangan menyebabkan kekeringan yang berdampak langsung pada ketersediaan air, baik untuk kebutuhan domestik masyarakat maupun untuk irigasi pertanian. Kecamatan Botolinggo, Kabupaten Bondowoso, merupakan wilayah yang sebagian besar penduduknya berprofesi sebagai petani. Di wilayah ini terdapat Dusun Plampang, Desa Klekehan, dengan jumlah 96 KK yang sejak tahun 2023 hingga Juli 2024 mengalami krisis air bersih yang cukup parah. Kekeringan tidak hanya menyulitkan masyarakat dalam memperoleh air minum, tetapi juga mengancam produksi pertanian lokal. Komoditas utama desa ini yaitu jagung dan kacang hanya dapat ditanam satu kali dalam setahun akibat keterbatasan air irigasi. Dalam perspektif Al-Islam dan Kemuhammadiyahan (AIK), isu kekeringan ini merupakan tanggung jawab sosial yang menuntut kepedulian dan tindakan nyata untuk menolong sesama. Nilai solidaritas dan kebermanfaatan menjadi landasan keterlibatan Muhammadiyah Disaster Management Center (MDMC) yang sejak awal aktif mendistribusikan air bersih ke Dusun Plampang. Upaya tersebut merupakan bentuk dakwah bil-hal yang tidak hanya meringankan beban warga, tetapi juga memperkuat ketahanan sosial masyarakat. Sebagai langkah strategis dan berkelanjutan, direncanakan pembangunan kolam detensi seluas ±1 hektar untuk menampung air dan mengairi lahan pertanian seluas ±2.000 hektar. Pembangunan kolam ini diharapkan mampu menjamin ketersediaan air irigasi sepanjang tahun, meningkatkan produktivitas pertanian, serta memperkuat kemandirian ekonomi masyarakat Desa Klekehan.
Co-Authors Aida Khoirun Nisa Akmal Hisam Dani Asroful Abidin Desta, Senki Jimi Amijaya Latifa Mirzatika Al-Rosyid Levina Ardiningrum Hartadi Musarofa, Musarofa Rusdiana Setyaningtyas Shofiyah, Rohimatush Siswanti, Yuvita Dian Tiara Dwi Desfinta Totok Dwi Kuryanto Vania Zitha Amodia