Pushed to the limit: Saving energy and improving treatment at high loads


An advanced process control system was implemeneted in a highly loaded Sequencing Batch Reactor (SBR) pilot plant in Hammarby Sjöstadsverk, Sweden. It was found that by controlling the process in a smarter way and optimizing for daily and weekly load variations, the solution resulted in significant reduction in required aeration time and energy without risking permit violation.

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