Efficient organic carbon utilization for combined nutrient removal and biogas production in hybrid biofilm activated sludge system

G. Gunes, D. Guven, E. Cokgor, G. E.Zengin Balci, G. Ozyildiz, A. Erdincler, D. Okutman Tas, I. Takács, G. Insel*

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Araştırma sonucu: ???type-name???Makalebilirkişi

Özet

Moving bed biofilm technology is a successful and promising biological treatment process considered for cost-effective management of wastewaters. In this study, a hybrid moving bed biofilm pilot plant was operated and obtained results were compared with simulation results of two biological processes: a conventional Biological Nutrient Removal (BNR) system and a novel hybrid activated sludge configuration implemented with Moving Bed Biofilm Reactor (MBBR) and a reactive primary clarifier (RPC). An efficient organic carbon entrapment (87%) was obtained in reactive primary clarifier where the major component (95%) of the total Chemical Oxygen Demand (COD) was determined as slowly hydrolysable (XS1), according to respirometric tests. Pilot plant and simulation studies exhibited that an improved nitrogen and phosphorus removal performance, as well as higher biogas production (47%) were obtained by organic carbon redirection in proposed hybrid configurations, securing a 40% less reactor volume. Investigation of the economic aspects indicated that hybrid system has a lower operating cost (i.e., 23% less air requirement, 40% less mixing energy requirement), does not require internal recirculation pumps, and produces more energy through anaerobic digestion compared to conventional BNR. Therefore, proposed novel hybrid configuration is more efficient for the treatment of municipal wastewater in terms of Capital Expenditures (CAPEX) and Operational Expenditures (OPEX) within the energy self-sufficient treatment plant approach and sustainable treatment plant operation.

Orijinal dilİngilizce
Makale numarası108862
DergiBiochemical Engineering Journal
Hacim193
DOI'lar
Yayın durumuYayınlandı - Nis 2023

Bibliyografik not

Publisher Copyright:
© 2023 Elsevier B.V.

Finansman

This work was funded by the Scientific and Technological Research Council of Turkey (TUBITAK, Project # 117Y087 ). The authors would like to thank Istanbul Water and Sewerage Administration of Istanbul (ISKI) for housing Hybrid AS-MBBR pilot plant in full scale WWTP. This work was funded by the Scientific and Technological Research Council of Turkey (TUBITAK, Project # 117Y087). The authors would like to thank Istanbul Water and Sewerage Administration of Istanbul (ISKI) for housing Hybrid AS-MBBR pilot plant in full scale WWTP.

FinansörlerFinansör numarası
ISKI
Istanbul Water and Sewerage Administration of Istanbul
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu117Y087

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