Characterization of Hazardous Organics in Impounded Source Waters and Filter Backwash Water (High Veldt), South Africa
Abstract:Surface waters and dams in South Africa are highly eutrophic resulting in shrinking resources, possible future water shortage can be averted by sourcing solutions to the limitations of use of impaired water sources and improvement in water conservation strategies. These include the recycling of currently wasted filter backwash water, a practice that is limited by fear of accumulation of toxic organic compounds in the backwash water. In this study, the organic contents of the raw dam water and spent filter backwash water from dissolved air floatation filters (DAFF) and granular activated carbon (GAC) filters are characterized to identify the presence of toxic organic compounds of environmental concern and their accumulation potential in the filters of treatment plants in South Africa. Tentatively identified compounds from all samples include a host of phenolic compounds and atrazine. The process of positive identification and quantification is under way.
Document Type: Research Article
Publication date: January 1, 2008
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