If the SS level in the water after flotation treatment is still high, can another sedimentation tank be installed to allow further sedimentation?
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If the SS level in the water after flotation treatment is still high, can another sedimentation tank be installed to allow further sedimentation?
This post was last edited by Gorō’s Eight Trigrams Staff on 2015-7-11 at 20:17. The original poster can try adjusting the operating parameters of the air flotation process, such as the amount of dissolved air, the dosage of coagulants and flocculants, the types of coagulants and flocculants used, and the pH value. If another sedimentation tank is required to meet the discharge standards, it is necessary to determine whether chemicals need to be added again for secondary coagulation; the client intends to verify this through pilot tests. It's also necessary to evaluate the costs at this time.
If the SS level in the effluent from the flotation tank is high, adjustments to the operation of the flotation tank are necessary. If the high SS level in the inlet water of the flotation tank is the cause, it is more effective to add a sedimentation tank before the flotation tank； To prevent an increase in the SS level of the effluent due to fluctuations in the air flotation tank, it is recommended to add a sand filter; using a sand filter combined with a carbon filter yields even better results and is also easier to operate.
By placing an MBR module directly in the biochemical tank, it is possible to withstand fluctuations in water quality while ensuring the quality of the effluent, which is free of suspended solids and microorganisms.