Membrane filtration allows safe retention of microorganisms when treating filter backwash water from conventional drinking water filters. The permeate of the membrane plant can thus be reused to produce drinking water. The benefits are a higher yield of the drinking water treatment plant and a minimised wastewater production. This paper discusses the results of a pilot study, cost data and full-scale operation experiences concerning the application of ultrafiltration to treat filter backwash water. The effectiveness of ultrafiltration was assessed with regard to flux, cost and permeate quality.
Reuse of filter backwash water by implementing ultrafiltration technology
A. Brügger, K. Voßenkaul, T. Melin, R. Rautenbach, B. Golloing, U. Jacobs, P. Ohlenforst; Reuse of filter backwash water by implementing ultrafiltration technology. Water Supply 1 June 2001; 1 (5-6): 207–214. doi: https://doi.org/10.2166/ws.2001.0116
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