METHOD AND APPARATUS FOR TREATING SLUDGE BY MAKING GOOD USE OF SLUDGE PRETREATING UNIT AND MEMBRANE SEPARATION TYPE BIOREACTOR

摘要

PROBLEM TO BE SOLVED: To provide an improved method for treating sludge by making good use of a sludge pretreating unit and a membrane separation type bioreactor and a sludge treating apparatus.

SOLUTION: The reduction effect on the volume of sludge can be promoted drastically by making the sludge pass through a sludge chemically and/or physically pretreating step to promote the biodegradability of a microbe in the sludge and making good use of a bioreactor in which a solid-liquid separating membrane unit is immersed.

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