期刊
CHEMOSPHERE
卷 172, 期 -, 页码 294-301出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2016.12.120
关键词
Contaminant; Managed aquifer recharge; Reclaimed water; Wastewater; Water reuse
资金
- Natural Sciences and Engineering Research Council of Canada in the form of an Industrial Research Chair in Water Treatment at the University of Waterloo
- Associated Engineering Group Ltd.
- city of Barrie
- city of Brantford
- citiy of Guelph
- city of Hamilton
- city of Ottawa
- Conestoga-Rovers & Associates Limited
- EPCOR Water Services
- GE Water & Process Technologies Canada
- Lake Huron and Elgin Area Water Supply Systems
- Ontario Clean Water Agency (OCWA)
- Regions of Durham
- Halton
- Niagara and Waterloo
- RAL Engineering Ltd.
- Toronto Water
- Walkerton Clean Water Centre
Managed aquifer recharge (MAR) using highly treated effluent from municipal wastewater treatment plants has been recognized as a promising strategy for indirect potable water reuse. Treated wastewater effluent can contain a number of residual contaminants that could have adverse effects on human health, and some jurisdictions have regulations in place to govern these. For those that do not, but where reuse may be under consideration, it is of crucial importance to develop a strategy for identifying priority contaminants, which can then be used to understand the water treatment technologies that might be required. In this study, a multi-criteria approach to identify critical contaminants in wastewater effluent for MAR was developed and applied using a case study site located in southern Ontario, Canada. An important aspect of this approach was the selection of representative compounds for each group of contaminants, based on potential for occurrence in wastewater and expected health or environmental impacts. Due to a lack of MAR regulations in Canada, the study first proposed potential recharge water quality targets. Predominant contaminants, potential additional contaminants, and potential emerging contaminants, which together comprise critical contaminants for MAR with reclaimed water, were then selected based on the case study wastewater effluent monitoring data and literature data. This paper proposes an approach for critical contaminant selection, which will be helpful to guide future implementation of MAR projects using wastewater treatment plant effluents. (C) 2016 Elsevier Ltd. All rights reserved.
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