Submerged membrane bioreactor in treatment of simulated restaurant wastewater

Bin Yang; Guanghao Chen; Guohua Chen

doi:10.1016/j.seppur.2011.12.026

Submerged membrane bioreactor in treatment of simulated restaurant wastewater

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Overview

31 Scopus Citations

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Author(s)

Bin Yang
Guanghao Chen
Guohua Chen

Detail(s)

Original language	English
Pages (from-to)	184-190
Journal / Publication	Separation and Purification Technology
Volume	88
Publication status	Published - 22 Mar 2012
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.seppur.2011.12.026 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84863295265&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(5d1be8ba-b657-4c51-ae12-003930cb59ee).html

Abstract

Submerged membrane bioreactors (MBRs) were employed as a subsequent process following the electrocoagulation and electroflotation of restaurant wastewater, which is characterized as high content of oil, grease, suspended solid and detergent. The performance of two parallel MBRs was tested with simulated restaurant wastewater of respectively low and high initial concentrations of oil and detergent. The organic matter removal, sludge production and sludge properties, as well as membrane filtration performances were investigated. The overall COD removal efficiencies were 98.3% and 99.1%, respectively, when the initial influent contained 5 and 100 mg/L oil. The biological treatment was found to be the dominant contributor for COD removals in the MBRs. The presence of detergent showed a positive effect on fouling mitigation due to the modification of the membrane surface and the formation of relatively loose sludge cake. © 2011 Elsevier B.V. All rights reserved.

Research Area(s)

Detergent, Filamentous bacteria, Membrane fouling, Membrane surface modification, Oil and grease, Sludge production

SDG 6 - Clean Water and Sanitation

Bibliographic Note

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