Thursday, May 26, 2016

The Term in Biochemical Oxygen Demand (BOD)

From an unnamed source - -

Advanced Activated Sludge Treatment Process

As the heartbeat of the plant, the new activated sludge basins perform a majority of the biological oxygen demand (BOD) and ammonia removal required by the facility's discharge permit. The process is also designed to accommodate biological nutrient removal (BNR) should future discharge permits require more stringent nutrient limits. This marks a change in the plant's treatment processes from a fixed-film process to a complete mix biological process. The improved system uses fine bubble diffused air, which provides a higher oxygen transfer while also meeting mixing requirements. The rate of aeration is streamlined to optimize the biological process through automated dissolved oxygen control.

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