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Citation
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HERO ID
1249543
Reference Type
Journal Article
Title
Toxic organic micro-pollutants removal mechanisms in long-term operated membrane bioreactor treating municipal solid waste leachate
Author(s)
Boonyaroj, V; Chiemchaisri, C; Chiemchaisri, W; Theepharaksapan, S; Yamamoto, K
Year
2012
Is Peer Reviewed?
Yes
Journal
Bioresource Technology
ISSN:
0960-8524
EISSN:
1873-2976
Volume
113
Issue
Elsevier
Page Numbers
174-180
Language
English
PMID
22243929
DOI
10.1016/j.biortech.2011.12.127
Web of Science Id
WOS:000304223300031
URL
http://www.sciencedirect.com/science/article/pii/S0960852411019080
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Abstract
The performance of two-stage membrane bioreactor (MBR) in term of toxic organic micro-pollutants removal was continuously monitored for 300 days under long sludge age condition. The phenolic compounds and phthalic acid esters (PAEs) in landfill leachate and treated water from MBR unit were quantified by solid phase extraction and gas chromatography-mass spectrometry. Priority pollutants in landfill leachate were phenolics and their degradation products i.e. 4-methyl-2,6-di-tert-butylphenol, bisphenol A at higher concentrations above 100 μg/l, PAEs i.e. dimethyl phthalate, diethyl phthalate, di-n-butyl phthalate, di-n-octyl phthalate, and di (2-ethylhexyl) phthalate. It was found that MBR could remove phenolic compounds and PAEs by 77-96%. Biodegradation and adsorption mechanisms were responsible for their removals in MBR. Additionally, the retention of compounds during filtration through the fouled membrane was also found significant. This research shows that the removal of organic micro-pollutants in landfill leachate was improved under higher biomass concentration and longer sludge age conditions.
Keywords
Landfill leachate; Membrane bioreactor; Phenolic compounds; Phthalic acid esters; Toxic micro-pollutants
Tags
•
Dibutyl Phthalate (DBP)
Database Searches
Web of Science
LitSearch Nov 2012
WOS
Merged reference set
LitSearch Dec 2012 - June 2013
Web of Science
Excluded: No Primary Data on Health Effects
Chemical treatment/ disposal/remediation
•
Diethyl phthalate (DEP)
Database searches
Initial Litsearch
Web of Science
Merged reference set
Jan 2020 update
PubMed
Web of Science
New for this project
Excluded: No Primary Data on Health Effects
Chemical treatment/disposal/remediation
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