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MBBR Implementation Insights

July 2015

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Solutions and Best Practices for Moving Bed Biofilm Reactor Installation and Start-Up

JULY 2015 — A top concern among wastewater treatment facility owners is increasing energy efficiency while improving effluent water quality. Municipal facilities must comply with increasingly stringent requirements for biochemical oxygen demand (BOD), ammonia and nitrogen levels, as well as provide for growing populations. On the commercial side, water-intensive businesses have to plan for sustainable growth under the same regulations. And, as always, public and private enterprises alike are aiming to cost-effectively curb their environmental footprint.

The moving bed biofilm reactor (MBBR) is an adaptable and flexible solution that helps owners achieve all of these goals. The MBBR process relies on floating biofilm carriers in a mixed motion aerated treatment basin. The biofilm carriers provide a protected surface to support prolific growth of heterotrophic (uses organic carbon for growth) and autotrophic (uses inorganic compounds for growth) bacteria within its cells. Compared to traditional treatment processes, the method requires less maintenance and a fraction of the space. Without the need for an activated sludge return stream, operation is also simplified while efficiency is improved.

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