Why is the aerobic effluent turbid?
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The settlement rate is very fast, with an SV30 of 19, a COD60 around that value, and a DO level of over 5. Could it be that aeration is excessive?
Yes, we have encountered this situation as well
What process? ? ? :$:$
The aeration system has aged excessively. DO2—4 range. Examine under a microscope to see if there are too many rotifers.
DO is high. . . We control 2-3!
Excessive aeration leads to the disintegration of sludge due to aging, causing the supernatant to become turbid; a fast settling rate generally indicates a high content of inorganic components in the activated sludge.
Regardless of the process, excessive aeration, high dissolved oxygen levels, and nutrient-deficient sludge
Excessive turbulence, high dissolved oxygen levels, and insufficient nutrients in the sludge