Industrial wastewater flocculating agent and preparation method thereof

Abstract

The invention discloses an industrial wastewater flocculating agent and a preparation method thereof, belonging to the field of water treatment agents. The industrial wastewater flocculating agent comprises the following raw materials in parts by weight: 15-30 parts of polyacrylamide, 10-25 parts of polyacrylate, 3-9 parts of aluminum potassium sulfate, 5-10 parts of polysilicate, 3-9 parts of poly-aluminum calcium chloride, 5-10 parts of ferric chloride, 5-10 parts of gypsum, 10-25 parts of silica, 8-18 parts of zeolite, 3-9 parts of ferric citrate, 5-15 parts of polyphosphate ferric chloride, 1-5 parts of polymeric ferric sulfate and 50-90 parts of water. The industrial wastewater flocculating agent is short in flocculent precipitation time, good in effect and low in cost, is capable of improving the the emulsifying ability of water molecules and degrading harmful substances in water, particularly can be used for effectively treating high-concentration and high-turbidity wastewater and non-biochemical wastewater and can be widely applied to the treatment of municipal wastewater and various types of industrial wastewater as well as the water quality treatment of polluted rivers and lakes, and treated water can be circularly used.

Description

technical field [0001] The invention relates to an industrial wastewater flocculant and a preparation method thereof, belonging to the field of water treatment agents. Background technique [0002] Coagulation treatment is one of the key links in wastewater treatment, which can remove turbidity and pollution, and reduce the pollution load of subsequent sewage treatment. The flocculant is the key factor to determine the effect of coagulation treatment, and has an important impact on the operation status of the subsequent process, the final effluent water quality and cost. According to its chemical composition, flocculants can be generally divided into two types: inorganic flocculants and organic flocculants. Inorganic flocculants include inorganic coagulants and inorganic polymer flocculants; organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. Flocculants are mainly groups with positive (negative)...

AI Technical Summary

Problems solved by technology

Due to the current disadvantages of slow flocculation and sedimentation and high drug consumption

Polymer flocculants such as basic polyaluminum chloride (PAC), polyaluminum sulfate, polyferric sulfate, etc., overcome the disadvantages of low processing efficiency of low molecular flocculants, but their cost is high, and when low temperature and low turbidity Poor processing effect

Organic flocculants are generally polymers, such as polyamine flocculants, quaternary ammonium starch-based flocculants, and polyacrylamide flocculants. Among them, polyacrylamide has the advantages of less dosage, strong ability to clarify water quality, and fast flocculation speed. It is not easily affected by the pH value of water, and the amount of sludge generated is less, which has been widely used. However, polyacrylamide has strong neurotoxicity and certain carcinogenicity. When a large amount of polyacrylamide is used to treat wastewater, it will produce polymer residues. , destroying the biological chain of the water body, thereby affecting human health