CONCURRENT PHYSICAL AND BIOLOGICAL TREATMENT: THE INFLUENCE OF MEDIA CHARACTERISTICS IN STATIC LOW DENSITY MEDIA FILTERS

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Abstract:

The physical characteristics of granular media contained within the filters and biofilters used for treatment of wastewater, such as specific surface area, porosity, size, shape, and specific gravity of the media, can determine a units the level of treatment capacity. In studies involving aquacultural wastewater, in which Static Low Density Media (SLDM) filters were used, medium shape has been found to result in distinct differences in filter management requirements and nitrification capacity (Sastry, 1996). In the treatment of domestic wastewater, both biological and physical treatment must occur, and an increase in treatment capacity or use of more efficient operational strategies could result in significant savings. Previous studies have shown that both organic and solids removal can occur concurrently in a single SLDM Filter, without the need for a secondary clarifier (Wagener et al., 2002). It was therefore decided to carry out an experimental investigation to determine the influence of media shape on the ability of a SLDM Filter to remove organic material and total suspended solids.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864704784131347

Publication date: January 1, 2004

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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