Water treatment composite flocculant

Abstract

The invention relates to a granular compound flocculant for water treatment compositely comprising a bilayer or multilayer flocculant. The components according to the weight percentage are as follows: aluminum salt 40%-60%, ferric salt 15%-30%, polyacrylamide 0.5%-10% and starch 1%-15%. The flocculant of the invention integrates the characteristic of both inorganic and organic flocculants, improves the dosing mode of the medicament, increases the action efficiency of the medicament by using the multilayer sustained release structure and improves the efficiency of the medicament.

Description

technical field [0001] The invention relates to a water treatment flocculant, in particular to a water treatment composite flocculant. Background technique [0002] Coagulation and sedimentation of chemical agents is a commonly used method in water treatment technology. The method has the characteristics of low investment, small land occupation, low operating cost and wide adaptability. In the coagulation and sedimentation technology of water treatment, the delivery method of chemical agents is one of the key technologies. With the improvement of water treatment requirements, a combination of various flocculants is often used in the chemical dosing process to meet the water quality requirements. The main disadvantages of the one-time dosing process of the mixed chemical solution are: insufficient performance of the chemical agent, large dosage, easy to cause waste, and produce secondary pollution. For the process of adding chemicals in batches, there are disadvantages suc...

AI Technical Summary

Problems solved by technology

The main disadvantages of the one-time dosing process of the mixed chemical solution are: insufficient performance of the chemical agent, large dosage, easy to cause waste, and produce secondary pollution

For the batch-dosing process, it is difficult to control the dosing time, and there are also disadvantages such as the inability of the chemicals to fully exert their effectiveness.

At present, the main problems of the combination of several flocculant dosing methods are that the performance of the flocculant is not fully exerted, and the dosage is large, resulting in waste of chemicals, increased operating costs, secondary pollution, and unstable effluent indicators.