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Investigations and Considerations of Means of Influencing the Biological Activity of Activated Sludge by Various Solid-Liquid Separation Processes, with Special Regard to Dissolved Air Flotation

机译:不同固液分离过程影响活性污泥生物活性方法的研究与思考,特别是溶气浮选

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During the dissolved air flotation with partial pressurized flow recycling there is no decrease in respiration activity and thus no harm to the activated sludge resulted. When working with full-flow pressurization it is important that no shearing affects the activated sludge, since this appears to influence the biological activity. The tests also showed that with proper procedure, flotation is the optimal treatment of activated sludge when separated and returned to the aeration tank, thus providing no anaerobic or oxygen-poor conditions for the activated sludge.

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