(1) water is generally fixed water and cannot be easily changed;

(2) improving the operation effect of pretreatment, optimization of coagulant and flocculant dosage, choose inhibitor to water, adjust the pretreatment equipment to achieve the best running state, strictly in accordance with operation requirements, ensure the pretreatment effluent compliance;

(3) selection of quality assured brand filter, both extended filter element life-cycle, and ensure security filters the effluent.