Systematically testing alternative cleaning agents and cleaning procedures on a large scale municipal membrane bioreactor, the Erftverband optimized the cleaning strategies and refined the original cleaning procedures for the hollow fiber membranes in use. A time-consuming, intensive ex-situ membrane cleaning twice a year was initially the regular routine. By introducing the effective means of cleaning in place in use today, which employs several acidic and oxidative/alkaline cleaning steps, intensive membrane cleaning could be delayed for years. An overview and an assessment of various cleaning strategies for large scale plants are given.
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Research Article| February 01 2008
Strategies for chemical cleaning in large scale membrane bioreactors
Water Sci Technol (2008) 57 (3): 457–463.
C. Brepols, K. Drensla, A. Janot, M. Trimborn, N. Engelhardt; Strategies for chemical cleaning in large scale membrane bioreactors. Water Sci Technol 1 February 2008; 57 (3): 457–463. doi: https://doi.org/10.2166/wst.2008.112
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