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All Journal INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Journal Serambi Engineering (JSE)
Prayatni Soewondo
Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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ORGANIC REMOVAL IN DOMESTIC WASTEWATER USING ANAEROBIC TREATMENT SYSTEM-MBBR WITH FLOW RECIRCULATION RATIO AND INTERMITTENT AERATION Michael Subroto; Wisnu Prayogo; Prayatni Soewondo; Ahmad Soleh Setiyawan
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 3, OCTOBER 2022
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i3.12776

Abstract

Aim: The modified Small-scale Domestic Sewage Treatment Plant (SDSTP) reactor with anaerobic fixed bed- aerobic Moving Bed Biofilm Reactor (MBBR) is implemented to find the optimum condition for organic degradation related to recirculation and intermittent aeration practices with the purpose to comply with the governmental regulation standard.  Methodology and Results: This research have been done with the artificial wastewater with characteristic similar to the sewage treatment plant (STP) of Telkom company with ratio C:N:P of characterized domestic wastewater is 252.40:85.42:3.01 that consists of glucose, NH4Cl, potassium dihydrogen phosphate, potassium nitrate, and sodium nitrite (NaNO2). Reactor design related with attached biomass in media until 2478.56 mg MLVSS.L-1 with the growth kinetics rate (μ) of 0.4691 day—1. The artificial wastewater is applied the determine the optimum variation of flow recirculation and periodic aeration in specific Hydraulics Retention Time (HRT) and Organic Loading Rate (OLR). In this research, the optimum recirculation ratio for organic degradation is 26.40 L.h-1 and the optimum aeration frequency variation is  12 hours in intermittent frequency with the maximum efficiency of organic degradation of 76.10% with the degradation efficiency real domestic wastewater application from STP Telkom company is 83.09%. Conclusion, significance and impact study:  Stover-Kincannon model is the best model with highest accuracy rate to model the degradation performance of organic compounds by the anaerobic fixed bed- aerobic MBBR SDSTP with determination coefficient 0.8623 and also degradation coefficient 38.121 day-1 compared with other models studied in this research.
Evaluasi Kinerja Fixed Bed Biofilm Reactor dengan Kombinasi Media PVC Sarang Tawon dan Bioball dalam Pengolahan Air Limbah Domestik Givanny Maiherlia; Prayatni Soewondo; Mhd. Fauzi
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Air limbah domestik mengandung pencemar berpotensi menurunkan kualitas badan air permukaan apabila tidak diolah secara optimal. Fixed Bed Biofilm Reactor (FBR) menjadi salah satu alternatif pengolahan biologis untuk dikembangkan karena mampu mempertahankan biomassa dalam jumlah tinggi serta dapat meningkatkan efektivitas pengolahan. Penelitian mengenai penggunaan kombinasi media PVC sarang tawon dan bioball pada teknologi FBR masih terbatas. Penelitian ini bertujuan mengevaluasi kinerja Fixed Bed Biofilm Reactor  (FBR) dengan kondisi anoksik - aerobik menggunakan kombinasi media PVC sarang tawon dan bioball dalam pengolahan air limbah domestik. Penelitian dilakukan dengan konsentrasi COD influen sebesar 500 mg/L. Parameter yang diamati selama proses operasional reaktor adalah COD, amonia, nitrit, nitrat, NTK, dan total fosfat yang bertujuan untuk mengevaluasi penyisihan bahan organik dan nutrien. Hasil penelitian menunjukkan bahwa sistem FBR mampu menyisihkan bahan organik dan nutrien secara efektif dengan efisiensi penyisihan COD 96,43%, amonia 92,75%, nitrit 89,58%, nitrat 82,08%, NTK 85,82%, total fosfat 49,50%. Tingginya efisiensi penyisihan menunjukkan bahwa kombinasi media PVC sarang tawon dan bioball dapat meningkatkan luas permukaan untuk pertumbuhan biofilm sehingga meningkatkan kontak antara mikroorganisme dan substrat.
Co-Authors Givanny Maiherlia Mhd. Fauzi Michael Subroto Setiyawan, Ahmad Soleh Wisnu Prayogo