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All Journal Jurnal Purifikasi Environmental Pollution Journal
Candra Dwi Ratna
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Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science Law, Crime, Criminology & Criminal Justice

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Pengaruh Waktu Operasional Terhadap Penurunan BOD Dan TSS pada Reaktor Biofilter Aerob dengan Aliran Upflow Siswanti, Yuvita; Candra Dwi Ratna; Heri Setyobudiarso
Environmental Pollution Journal Vol. 5 No. 2: Juli 2025
Publisher : ECOTON: Ecological Observation and Wetlands Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58954/epj.v5i2.373

Abstract

Rendahnya pengolahan limbah rumah tangga dan tingginya pencemaran lingkungan menuntut penerapan teknologi biofilter aerobik untuk meningkatkan kualitas air dan mendukung pemanfaatan kembali. Penelitian ini bertujuan menganalisis pengaruh waktu operasional terhadap penurunan BOD dan TSS pada limbah domestik menggunakan reaktor biofilter aerob aliran ke atas dengan media batu apung berdiameter 3–5 cm yang telah diaktivasi. Variasi waktu operasional yang digunakan yaitu 2,5 jam, 6,5 jam, dan 10,5 jam. Hasil penelitian menunjukkan bahwa efisiensi penghilangan polutan meningkat seiring bertambahnya durasi waktu operasional. Penurunan BOD dan penyisihan TSS menunjukkan peningkatan signifikan pada setiap variasi waktu, dengan efektivitas lebih tinggi pada TSS dibandingkan BOD. Hal ini mengindikasikan bahwa biofilter bekerja melalui proses biologis oleh mikroorganisme dan proses fisik berupa filtrasi partikel padat. Dengan demikian, biofilter aerob aliran upflow efektif sebagai alternatif pengolahan limbah domestik.  
UTILIZATION OF Moringa oleifera SEEDS AS A NATURAL COAGULANT IN REDUCING TOTAL COLIFORM BACTERIA AND Escherichia coli (E. coli) IN ANIMAL SLAUGHTERHOUSE WASTEWATER Nurhidayah Nurhidayah; Candra Dwi Ratna; Hery Setyobudiarso
Purifikasi Vol 25 No 1 (2026): Journal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i1.527

Abstract

Livestock slaughterhouse wastewater has the potential to pollute the environment because it contains pathogenic bacteria, especially Escherichia coli and total coliform, which are indicators of fecal contamination. This study aims to analyze the effect of varying doses of natural coagulant from moringa seeds (Moringa oleifera) on the reduction of E. coli and total coliform in RPH wastewater with a settling time of 40 minutes. The method used was coagulation-flocculation with varying coagulant doses of 150 gr, 200 gr, and 250 gr, followed by a sedimentation process. Microbiological analysis was conducted to determine the number of E. coli and total coliform bacteria, with each treatment repeated three times. The results showed that increasing the dose of moringa seed coagulant affected the reduction in the number of bacteria. For the total coliform parameter, the number of bacteria decreased from 11,500 MPN/mL at a dose of 150 gr to 6,100 MPN/mL at a dose of 250 gr. Meanwhile, the number of E. coli decreased from 3,100 CFU/mL to 1,550 CFU/mL at the same dose. These results indicate that moringa seeds have the potential to be used as an effective, simple, and environmentally friendly natural coagulant in reducing pathogenic bacterial contamination in slaughterhouse wastewater.
Co-Authors Heri Setyobudiarso Hery Setyobudiarso Nurhidayah Nurhidayah Siswanti, Yuvita