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All Journal Jurnal Nasional Pengelolaan Energi MigasZoom Journal of Marine-Earth Science and Technology
Siswanto, Abrila Delita Putri
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Environmental Science Mechanical Engineering

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Pengaruh Penambahan Polyacrylamide (PAM) Terhadap pH, Total Dissolved Solid, dan Kekeruhan dengan Metode Jar Test pada Water Treatment Plant di PPSDM Migas Cepu Kuswanto, Shabira Hanindya; Fuady, Aziz Ridho; Siswanto, Abrila Delita Putri; Yulianingsih, Irine
Jurnal Nasional Pengelolaan Energi MigasZoom Vol. 7 No. 1 (2025): Jurnal Nasional Pengelolaan Energi MigasZoom
Publisher : Pusat Pengembangan Sumber Daya Manusia Minyak dan Gas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37525/mz/2025-1/646

Abstract

Air berperan penting karena sifatnya yang fundamental sehingga sebagian besar makhluk hidup memerlukan air untuk memenuhi kebutuhan seperti kebersihan dan konsumsi. Pada industri minyak dan gas bumi yang memiliki kilang, air dimanfaatkan untuk sebagai makeup water. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan polyacrylamide (PAM) pada pH, Total Dissolved Solid (TDS), dan kekeruhan Water Treatment Plant di PPSDM Migas Cepu. Pada penelitian ini digunakan metode Jar Test dengan memiliki tiga tahapan dalam prosesnya, yang pertama proses koagulasi, tahap selanjutnya yaitu proses flokulasi dan tahap ketiga adalah proses sedimentasi. Hasil pH awal sebesar 6,57. Setelah penambahan PAM diperoleh hasil optimal yaitu 7,09 dengan konsentrasi 15 ml. Kemudian, hasil awal TDS sebesar 1040 µS/cm, setelah penambahan PAM diperoleh hasil optimal yaitu 1015 µS/cm dengan konsentrasi 15 ml. Dan nilai awal kekeruhan sebesar 0,76 NTU, setelah penambahan PAM diperoleh hasil optimal yaitu 2,48 NTU dengan konsentrasi 25 ml.
CHARACTERISTICS MICROPLASTICS AND ESTIMATED DAILY INTAKE (EDI) IN KUPANG PUTIH (Corbula faba Hinds.) AND KUPANG MERAH (Musculista senhousia) Siswanto, Abrila Delita Putri; Aunurohim, Aunurohim; Saptarini, Dian
Journal of Marine-Earth Science and Technology Vol. 6 No. 2 (2025): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v6i2.9178

Abstract

Microplastics are plastic polymer particles smaller than 5 mm that can enter aquatic organisms through ingestion or trophic transfer. Bivalves are particularly vulnerable to microplastic contamination due to their filter-feeding behavior, which may pose potential risks not only to aquatic ecosystems but also to human health through seafood consumption. However, information on microplastic characteristics and human exposure assessment in locally consumed bivalves from the Madura Strait remains limited. This study aimed to analyze the physical and chemical characteristics of microplastics and to estimate human exposure using the Estimated Daily Intake (EDI) approach in two edible bivalve species, namely white mussel (Corbula faba Hinds.) and red mussel (Musculista senhousia), collected from the Madura Strait, Indonesia. A total of 30 individuals per species were analyzed. Physical characteristics of microplastics, including shape, size, and color, were observed using a stereomicroscope, while polymer types were identified using ATR–FTIR analysis. The EDI method was applied to estimate the potential daily intake of microplastics by humans through mussel consumption. The average microplastic abundance was higher in C. faba (104.6 ± 33.23 particles/individual) than in M. senhousia (53.46 ± 18.91 particles/individual). Fragment-shaped, black-colored microplastics with sizes of 10–50 µm were dominant in both species. Polypropylene (PP) and nylon or polyamide (PA) was the main polymer types identified. The estimated daily intake of microplastics was 1,067.24 particles/person/day for C. faba and 335.55 particles/person/day for M. senhousia. This study provides new insights by integrating microplastic characterization with human exposure assessment using EDI, highlighting the potential risks associated with bivalve consumption and supporting future environmental monitoring and food safety management.
Co-Authors Aunurohim Aunurohim Dian Saptarini Fuady, Aziz Ridho Kuswanto, Shabira Hanindya Yulianingsih, Irine