Fate of N-nitrosodimethylamine, trihalomethane and haloacetic acid precursors in tertiary treatment including biofiltration

Farré, Maria José, Reungoat, Julien, Argaud, Francois Xavier, Rattier, Maxime, Keller, Jurg and Gernjak, Wolfgang (2011) Fate of N-nitrosodimethylamine, trihalomethane and haloacetic acid precursors in tertiary treatment including biofiltration. Water Research, 45 17: 5695-5704. doi:10.1016/j.watres.2011.08.033


Author Farré, Maria José
Reungoat, Julien
Argaud, Francois Xavier
Rattier, Maxime
Keller, Jurg
Gernjak, Wolfgang
Title Fate of N-nitrosodimethylamine, trihalomethane and haloacetic acid precursors in tertiary treatment including biofiltration
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
1879-2448
Publication date 2011-11-01
Year available 2011
Sub-type Article (original research)
DOI 10.1016/j.watres.2011.08.033
Open Access Status Not yet assessed
Volume 45
Issue 17
Start page 5695
End page 5704
Total pages 10
Place of publication London, United Kingdom
Publisher I W A Publishing
Language eng
Subject 2312 Water Science and Technology
2311 Waste Management and Disposal
2310 Pollution
2302 Ecological Modelling
Abstract The presence of disinfection by-products (DBPs) such as trihalomethanes (THMs), haloacetic acids (HAAs) and N-nitrosamines in water is of great concern due to their adverse effects on human health. In this work, the removal of N-nitrosodimethylamine (NDMA), total THM and five HAA precursors from secondary effluent by biological activated carbon (BAC) is investigated at full and pilot scale. In the pilot plant two filter media, sand and granular activated carbon, are tested. In addition, we evaluate the influence of ozonation prior to BAC filtration on its performance. Among the bulk of NDMA precursors, the fate of four pharmaceuticals containing a dimethylamino moiety in the chemical structure are individually investigated. Both NDMA formation potential and each of the studied pharmaceuticals are dramatically reduced by the BAC even in the absence of main ozonation prior to the filtration. The low removal of NDMA precursors at the sand filtration in comparison to the removal of NDMA precursors at the BAC suggests that adsorption may play an important role on the removal of NDMA precursors by BAC. Contrary, the precursors for THM and HAA formation are reduced in both sand filtration and BAC indicating that the precursors for the formation of these DBPs are to some extent biodegradable.
Keyword Adsorption
Biological activated carbon
Biological activated carbon
NDMA
Sand filtration
Ozone
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
Advanced Water Management Centre Publications
 
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Created: Thu, 13 Oct 2011, 21:38:19 EST by Dr Maria Farre Olalla on behalf of Advanced Water Management Centre