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http://dx.doi.org/10.11001/jksww.2016.30.6.673

A study on characteristics of influent and effluent pollutants in public sewage treatment works combined with industrial wastewater and landfill leachate  

Jeong, Dong-Hwan (National Institute of Environmental Research)
Cho, Yangseok (National Institute of Environmental Research)
Ahn, Kyung-Hee (National Institute of Environmental Research)
Kim, Eunseok (National Institute of Environmental Research)
Kim, Changsoo (National Institute of Environmental Research)
Chung, Hyen-Mi (National Institute of Environmental Research)
Publication Information
Journal of Korean Society of Water and Wastewater / v.30, no.6, 2016 , pp. 673-682 More about this Journal
Abstract
In this study, we investigated influent and effluent water pollutants in 53 Public Sewage Treatment Works (PSTWs) where industrial wastewater or landfill leachate is combined four times for two years from 2014 to 2015. Also, we analyzed the characteristics of heavy metals and volatile organic carbons at influent and effluent of these PSTWs caused by sewage treatment combined with industrial wastewater or landfill leachate. As a result, six heavy metals such as barium, copper, iron, manganese, nickel and zinc, and four volatile organic carbons (VOCs) including phenols, di(2-)ethylhexyl phthalate (DEHP), formaldehyde and toluene were observed above detection limits in most of PSTWs. Also, it was revealed that six heavy metals such as hexavalent chromium, mercury, cadmium, chromium, nickel and selenium, and four VOCs including 1,1-dichloroethylene, vinyl chloride, naphthalene, and epichlorohydrin were observed more frequently according to precipitation. As a result of reviewing the monitoring data on "Water Quality Monitoring Networks" in lower watersheds of PSTWs, both heavy metals and VOCs were below detection limits, indicating that the effluent water had little influence on the watershed. Nevertheless for the better management of influent and effluent pollutants in PSTWs, it is necessary to establish the advanced management plans for water pollutants in PSTWs, which include a list of priority substances management, monitoring plans, and guidelines for industrial wastewater and landfill leachate combined in PSTWs.
Keywords
Heavy metal; Industrial wastewater; Public sewage treatment works; VOCs; Water pollutants;
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