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Microfiltration of Municipal Wastewater for Disinfection and Advanced Phosphorus Removal: Results from Trials with Different Small-Scale Pilot Plants

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Abstract:

The Berliner Wasserbetriebe have been conducting a research project on microfiltration of municipal wastewater for disinfection and advanced phosphorus removal since 1992. The goal of this project is to examine whether microfiltration (MF) is a technically feasible and economically competitive process for disinfection and advanced phosphorus removal for secondary effluent. Different smallscale MF systems under investigation performed well. Microfiltration is suitable for reaching low target concentrations of total coliforms (<100/100 mL) and total phosphorus (<50 m g/L). Significant virus removal was also noted, which was unexpected when the trials commenced. This report summarizes a survey of dead-end MF systems using different membranes and modules. The competitive trial period, with the most suitable polymeric dead-end MF unit used in parallel with a ceramic dead-end MF unit showed no advantage over an inorganic membrane. Based on the MF data for operational costs presented and an estimation for capital costs, total costs were estimated to range between U. S. $0.27–0.54/m3 filtrate. A final evaluation as to which MF system is the most suitable for municipal wastewater treatment will be provided following the conclusion of current large-scale trials.

Keywords: ADVANCED PHOSPHORUS REMOVAL; ADVANCED WASTEWATER TREATMENT; EU BATHING WATER DIRECTIVE; MICROFILTRATION; WASTEWATER DISINFECTION

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143000X138184

Publication date: September 1, 2000

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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