According to the sewage treatment process, the chemicals added generally include the following:
Coagulation agents (used to accelerate SS coagulation sedimentation or air flotation sedimentation): such as PAC, PAM, FeCl3, FeSO4, etc.
Before biochemical treatment: acid (sulfuric acid, HCl), alkali (NaOH), nitrogen (urea), phosphorus (phosphoric acid), micronutrients, CaO, CaCl2, etc.
Physical and chemical treatment: such as Fenton adding H2SO4, NaOH, H2O2 and FeSO4;;
Sludge flocculation: PAM
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Cyclone grit chamber is a grit chamber which uses mechanical force to control the flow pattern and velocity of water flow, accelerate the sedimentation of sand particles, and make organic matter take away with the water flow. There are many types of cyclone grit chambers, some of which are patented products.