Experimental Study on Non-Backwashing Dynamic Membrane Bio-Reactor

Abstract:

Using a DMBR, which consists of two piece of Polyester fabric mini nets and an interactive unit with brushes, to test whether it can relieve membrane fouling and keep the reactors stable operation on a high flux by anti-brushing periodically or not. The results indicated that when the flux was 45L/m²·h, it could operate 28d until the flux decline. And it also showed that an operation by running the interactive unit periodically could remove the dynamic membrane and make the non-backwashing come true. By comparing the amount of bio-film on the nets surface before and after anti-brushing, it proved that anti-brushing had a good cleaning effect to net. In addition to through a detection to the effluent turbidity, it could put 0.5NTU as an important sign to do anti-brushing operation.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 682-685
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.682
• Online since: February 2014
• Authors: Xian Si Xie*, Ping Shang
• Keywords: Anti-Brushing, Dynamic Membrane, Non-Backwashing, Turbidity

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