Sewage treatment agent containing ferric trichloride and ferric sulfate

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment agent containing ferric trichloride and ferric sulfate. The sewage treatment agent is prepared from, by mass, 5-10 parts of ferric trichloride, 10-30 parts of ferric sulfate, 5-9 parts of coal ash, 10-15 parts of potassium persulfate, 0.2-0.8 part of zinc powder, 8-10 parts of polyacrylamide, 0.5-1.5 parts of sodium hydroxide, 10-15 parts of bentonite and 10-15 parts of modified corn straw, wherein the modified corn straw is sodium hydroxide-ethyl alcohol-oxalic acid modified corn straw, bentonite is modified bentonite, and a modification method of bentonite comprises the step that a sodium chloride solution-starch solution is added into bentonite slurry for modification. The sewage treatment agent containing ferric trichloride and ferric sulfate has the advantages that flocculent settling can be effectively conducted on suspended solids in sewage, the range of treated pollutants is wide, the sewage treatment agent is free of poison and environmentally friendly, the preparation technology is simple, the cost is low, and it is proved through experiments that the sewage treatment agent can effectively treat wastewater and sewage in multiple fields of oil fields, mines, steel, printing and dyeing, chemical industry and the like.

Description

Technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment agent containing ferric chloride and ferric sulfate. Background technique [0002] Although our country has a vast land and abundant resources, the per capita water consumption is very low, and a large amount of sewage and wastewater cannot be effectively treated, which wastes a lot of water resources. Therefore, sewage treatment has become an urgent problem. [0003] At present, sewage treatment agents usually use inorganic flocculants and organic polymer flocculants. Inorganic flocculants are mainly traditional aluminum salts. As the composition of sewage becomes more and more complex, traditional aluminum salts can no longer achieve normal results. In addition, aluminum salt has a great impact on human health, and can only be treated with compound agents, but its treatment cost is relatively high. Summary of the invention [0004] The technical solutions a...

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Problems solved by technology

[0002] Although my country has a vast land and abundant resources, the per capita water consumption is very low, and a large amount of sewage and wastewater cannot be effectively treated, which wastes a lot of water resources. Therefore, sewage treatment has become an urgent problem

[0003] At present, sewage treatment agents usually use two types of inorganic flocculants and organic polymer flocculants. The inorganic flocculants are mainly traditional aluminum salts. As the composition of sewage becomes more and more complex, traditional aluminum salts can no longer achieve normal results. Moreover, aluminum salts have a great impact on human health, and can only be treated with compound agents, but the treatment cost is relatively high.

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