Evaluation of the role of adsorption and biodegradation of micropollutants during biological activated carbon filtration

Rattier, Maxime, Reungoat, Julien, Joss, Adriano, Gernjak, Wolfgang and Keller, Jurg (2013). Evaluation of the role of adsorption and biodegradation of micropollutants during biological activated carbon filtration. In: Programme and Abstract Book: Micropol & Ecohazard 2013. Micropol & Ecohazard 2013: 8th IWA Specialized Conference on Assessment and control of micropollutants and hazardous substances in water, Zurich, Switzerland, (230-231). 16-20 June, 2013.

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Name Description MIMEType Size Downloads
Author Rattier, Maxime
Reungoat, Julien
Joss, Adriano
Gernjak, Wolfgang
Keller, Jurg
Title of paper Evaluation of the role of adsorption and biodegradation of micropollutants during biological activated carbon filtration
Conference name Micropol & Ecohazard 2013: 8th IWA Specialized Conference on Assessment and control of micropollutants and hazardous substances in water
Conference location Zurich, Switzerland
Conference dates 16-20 June, 2013
Proceedings title Programme and Abstract Book: Micropol & Ecohazard 2013
Place of Publication London, United Kingdom
Publisher International Water Association (IWA)
Publication Year 2013
Sub-type Published abstract
Start page 230
End page 231
Total pages 2
Language eng
Formatted Abstract/Summary
Improvements in the quality of secondary treated effluents using granular activated carbon (GAC) adsorption or biological filtration techniques (slow sand filtration, river bank filtration, aquifer recharge or subsurface flow wetlands) have been under investigation during the last decades. The removal of micropollutants (MPs) by biodegradation is considered an important mechanism during biological filtration. Biological activated carbon (BAC) is the term used where bacterial activity is deliberately promoted in a GAC system. The combination of adsorption and biodegradation mechanisms is a promising process for advanced wastewater treatment [1]. In a previous study for over 2 years (58,000 bed volumes), the steady performance of BAC suggested that the main mechanism for the removal of effluent organic matter (EfOM) and pharmaceuticals and personal care products is biodegradation [2, 3]. However, clear evidence on the mechanism by which biological activity enhances MPs removal in BAC filters is currently missing. Consequently, design and operation guidelines that could optimise the filtration process are unknown and BAC filters remain designed empirically by anticipating the adsorption capacity decay due to continuous organic matter loading. At any time during the use of BAC filters, it is unknown which mechanism, adsorption or biodegradation, takes the primary responsibility for MPs removal. This abstract outlines the key findings of a study currently underway aimed at distinguishing and further understanding the role of adsorption and biodegradation in the removal of MPs in BAC filters.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Presented during the Session HG F3: "GAC processes".

Document type: Conference Paper
Collection: Advanced Water Management Centre Publications
 
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Created: Mon, 10 Feb 2014, 18:51:12 EST by Maxime Rattier on behalf of Advanced Water Management Centre