Advanced Water Management Centre

AWMC Seminar Program: Microbial Reduction of Multiple Oxidized Contaminants from Groundwater Using CH4-based Membrane Biofilm Reactors

Yulu Wang (PhD student, AWMC) 

Abstract: Various oxidized contaminants (e.g., perchlorate, bromate and selenate) have been widely detected in groundwater and could cause serious health problems. Although methane has been proposed as electron donor to remove nitrogen-related pollutants (e.g., nitrate and nitrite) from contaminated water, microbial methane oxidation coupling with perchlorate, bromate and selenate reduction was not clear. In addition, the removal rate of these oxidized contaminants driven by methane is still not practically useful. This study aims to develop and optimize CH4-based membrane biofilm reactors to achieve practically applicable removal of bromate/perchlorate/selenate. Moreover, simultaneous removal of multiple co-existing oxidized contaminants (including nitrate, sulfate, perchlorate, bromate, chromate and selenate) will be investigated by process performance, mass balance and electron balance. Advanced molecular methods (e.g., qPCR and High-throughput 16S rRNA gene sequencing) will be carried out to identify the key microbes performing methane oxidation and electron acceptor reduction.  It is expected that our results could advance our understandings of multiple oxidized contaminant reductions driven by methane as electron donor and guide us to design a promising process to remove various oxidized contaminants from contaminated groundwater.

AWMC hosts a free seminar series, every Friday at 9am in the AIBN Building.

Event Details
Date & Time: 
Friday, 02 November 2018
9am - 10am
Venue: AIBN Building 75, Level 1 Seminar Room

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