Comparison between Hybrid Moving Bed Membrane Bioreactor and Conventional Membrane Bioreactor Processes in Municipal Wastewater Treatment

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Comparison between Hybrid Moving Bed Membrane Bioreactor and Conventional Membrane Bioreactor Processes in Municipal Wastewater Treatment

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Title: Comparison between Hybrid Moving Bed Membrane Bioreactor and Conventional Membrane Bioreactor Processes in Municipal Wastewater Treatment
Author: Rollings-Scattergood, Sasha Michael
Department: School of Engineering
Program: Engineering
Advisor: Zhou, Hongde
Abstract: A conventional membrane bioreactor (MBR) and two moving bed bioreactors coupled with ultrafiltration membrane filtration were operated for close to six months to investigate biological nutrient removal and potential fouling inducing parameter mitigation. Unique to one of the moving bed membrane bioreactors (MBMBR) was a newly designed media that incorporated a hydrodynamic exterior carrier with a highly porous interior packing. Preliminary investigation indicates that nitrogen compounds were superiorly removed in the two MBMBRs when compared with the MBR. This is a result of denitrification processes occurring in anoxic micro-zones found within the depths of the biofilm affixed to media. Fouling propensity was found to be increased by over four times in the MBMBR systems as compared to the MBR. Mixed liquor, permeate and filtrate analysis, membrane fibre examination and permeability tests indicated that colloidal organic carbon, as well as soluble microbial products were the dominant fouling inducing compounds.
Description: Manuscript format
URI: http://hdl.handle.net/10214/3170
Date: 2011-12-08


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