Recovery of Algae from Pond Treatment Systems
Abstract:Waste Stabilization Ponds are used extensively for sewage treatment in moderate and tropical climates, and represent one of the most cost-effective, reliable and easily perated processes for the treating domestic and industrial wastes. One of the biggest problems associated with pond treatment, however, is the high algae concentrations in the effluent. In many cases algae are not a desirable by-product and are themselves a source of secondary pollution, rich in carbonaceous and nitrogenous algae matter. This puts an environmental strain on the receiving waters. One of the recently improved ways to control algae is to use trickling filters with a heterotrophic biofilm created by augmenting readily available sustenance to the filter media. This paper examines some of the hybrid facilities being used that combine existing stabilization ponds with trickling filters or activated sludge for enhanced biological degradation and polishing of the final effluent.
Document Type: Research Article
Publication date: January 1, 2010
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