In the A0 process for coalification wastewater, sludge appears intermittently in the final settling tank

2018-11-05View Original

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PAC has been added at the outlet of the secondary sedimentation tank; attempts to adjust the dosage of PAC as well as to replace it with another chemical have yielded no results. The final sedimentation tank has also been cleaned, yet sludge continues to appear intermittently

Reply #22018-11-05

Increase the sludge return flow rate and boost the dissolved oxygen levels.

Reply #32018-11-05

There may be bacteria inside, and when bubbles are formed, they bring the mud to the surface

Reply #42018-11-06

Internal recirculation? Dissolved oxygen around 3 in pool 0

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In the A0 process for coalification wastewater, sludge appears intermittently in the final settling tank

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