Anatomy of the organic carbon in an industrial wastewater: Implications of particle size distribution, respirometry and process modelling

Serdar Doğruel*, Atalay Altun, Emine Ubay Çokgör, Güçlü Insel, Bülent Keskinler, Derin Orhon

*Bu çalışma için yazışmadan sorumlu yazar

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2 Atıf (Scopus)

Özet

This study evaluated the fate of chemical oxygen demand (COD) fractions of an organized industrial district effluent treated with pilot membrane bioreactor (MBR) system. A series of respirometric analyses were performed on raw wastewater together with 450 nm, 100 kDa and 1 kDa filtered samples obtained from particle size distribution (PSD) experiments. The PSD analysis revealed that more than 300 mg/L of the influent COD accumulated in the lowest size range (<2 nm), accounting for 49–52 % of the total COD. The bulk (64 %) of the influent COD consisted of soluble hydrolysable COD (SH1). The hydrolysis rates for SH1 (0.80–1.28 1/day) were slightly below the levels suggested for domestic wastewaters, indicating the presence of inhibitory compounds in industrial wastewaters. The COD removal efficiency of MBR pilot was found as 85 %; however, 43 % of effluent COD (106 mg/L) still included rapidly hydrolysable organics in the size bracket of 5–30 nm. In this respect, the COD fractions for activated sludge process models used for MBR applications require a new-insight to correctly reflect organic matter balances in the treatment system.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)257-266
Sayfa sayısı10
DergiProcess Safety and Environmental Protection
Hacim146
DOI'lar
Yayın durumuYayınlandı - Şub 2021

Bibliyografik not

Publisher Copyright:
© 2020 Institution of Chemical Engineers

Finansman

Demirtaş Organized Industrial District is kindly acknowledged for conducting the effluent analyses of MBR plant and sharing the operational data of full-scale wastewater treatment plant. This project is financially supported by BYR Chemical Ltd . Demirta? Organized Industrial District is kindly acknowledged for conducting the effluent analyses of MBR plant and sharing the operational data of full-scale wastewater treatment plant. This project is financially supported by BYR Chemical Ltd.

FinansörlerFinansör numarası
BYR Chemical Ltd
BYR Chemical Ltd.

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