Which chemicals drive biological effects in wastewater and recycled water?

Tang, Janet Y. M., Busetti, Francesco, Charrois, Jeffrey W. A. and Escher, Beate I. (2014) Which chemicals drive biological effects in wastewater and recycled water?. Water Research, 60 289-299. doi:10.1016/j.watres.2014.04.043


Author Tang, Janet Y. M.
Busetti, Francesco
Charrois, Jeffrey W. A.
Escher, Beate I.
Title Which chemicals drive biological effects in wastewater and recycled water?
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
1879-2448
Publication date 2014-09-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.watres.2014.04.043
Open Access Status
Volume 60
Start page 289
End page 299
Total pages 11
Place of publication London, United Kingdom
Publisher I W A Publishing
Collection year 2015
Language eng
Subject 2312 Water Science and Technology
2311 Waste Management and Disposal
2310 Pollution
2302 Ecological Modelling
Abstract Removal of organic micropollutants from wastewater during secondary treatment followed by reverse osmosis and UV disinfection was evaluated by a combination of four in-vitro cell-based bioassays and chemical analysis of 299 organic compounds. Concentrations detected in recycled water were below the Australian Guidelines for Water Recycling. Thus the detected chemicals were considered not to pose any health risk. The detected pesticides in the wastewater treatment plant effluent and partially advanced treated water explained all observed effects on photosynthesis inhibition. In contrast, mixture toxicity experiments with designed mixtures containing all detected chemicals at their measured concentrations demonstrated that the known chemicals explained less than 3% of the observed cytotoxicity and less than 1% of the oxidative stress response. Pesticides followed by pharmaceuticals and personal care products dominated the observed mixture effects. The detected chemicals were not related to the observed genotoxicity. The large proportion of unknown toxicity calls for effect monitoring complementary to chemical monitoring.
Keyword Bioanalytical equivalent
Concentrations
Effect based monitoring
Mixture toxicity
Recycled water
Reverse osmosis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
National Research Centre for Environmental Toxicology Publications
 
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