How should sludge aeration be adjusted? How long will it take to return to normal?
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How should sludge aeration be adjusted? How long will it take to return to normal?
1. Reduce the aeration volume; an outlet DO level of 0.5 is sufficient, or intermittent aeration can also be used； 2. Increase the return flow to the secondary sedimentation tank ； 3. Increase the sludge discharge volume and frequency; once sludge ages, it becomes essentially useless, and new activated sludge is needed to replace it ； 4. Increase nutrition appropriately; based on the levels of BOD, ammonia nitrogen, and total phosphorus in the effluent, supplement the nutrients that are lacking. Methanol and glucose are recommended as carbon sources ； 5. Increase the frequency of monitoring for SV, MLSS, COD, etc., to enable timely adjustments ； It usually takes 2 to 3 days to gradually return to normal, but be sure not to rush, as this could cause an overload on the body and thus delay the recovery process.