Electro-Dewatering Waste Activated Sludge: Lessons Learned from Real World Cases

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Dewatering performances of waste activated sludge from biological wastewater treatment processes are limited by physical-chemical laws that limit solids concentrations to the low end. In order to increase the overall solids concentration and reduce volumes for disposal, electro-osmosis has been considered has an alternative mean for wastewater sludge dewatering. It is only recently, though, that a limited number of industrial electro-osmosis applications have successfully been introduced for dewatering sludge. This paper reviews electro-dewatering results of real world cases, elaborates on operational challenges faced and concludes on lessons learned from the introduction of this revolutionary technology in the wastewater treatment industry.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864708788806467

Publication date: January 1, 2008

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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 These proceedings are not peer reviewed.

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