Polyacrylamide sewage treating agent and preparation method thereof

Abstract

The invention discloses a polyacrylamide sewage treating agent and a preparation method thereof. The sewage treating agent is prepared from the following components in parts by weight: 30-40 parts of aluminum polychlorid, 15-25 parts of polyacrylamide, 3-8 parts of quartz sand, 1-5 parts of diatomite, 3-6 parts of dimethyl diallyl ammonium chloride, 5-10 parts of acrylamide, 0.5-2 parts of fatty amine, 0.5-1 part of polyethylene glycol 2000, 0.8-1.5 parts of polysorbate, 0.1-0.5 part of EDTA, 1-5 parts of hydroxypropyl methyl cellulose and 60-70 parts of deionized water. The preparation method comprises the following steps: respectively adding 10-20 parts of dimethyl diallyl ammonium chloride, acrylamide, EDTA, polyethylene glycol 2000, polysorbate and deionized water into a reaction kettle, uniformly stirring, adding fatty amine under nitrogen protection, and heating to react to obtain an intermediate I; and mixing the residual components to obtain an intermediate II, and finally mixing the intermediates I and II to obtain the polyacrylamide sewage treating agent.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a polyacrylamide sewage treatment agent and a preparation method thereof. Background technique [0002] With the improvement of people's living standards in our country and the rapid acceleration of the urbanization process, the growth rate of various wastewater such as industrial wastewater and domestic sewage is astonishing, and the amount is huge. According to incomplete statistics, the industrial wastewater with high heavy metal content produced in my country every year amounts to hundreds of millions of tons. The organic pollutants and heavy metals in these industrial wastewater, such as phenols, dyes, cadmium, chromium, mercury, etc., are often highly toxic. Therefore, The water environment in the area is seriously polluted, causing damage and threat to the local environment. [0003] Although domestic sewage has a small content of heavy metals, when it is discha...

AI Technical Summary

Problems solved by technology

According to incomplete statistics, my country produces hundreds of millions of tons of industrial wastewater with high heavy metal content every year. The organic pollutants and heavy metals in these industrial wastewater, such as phenols, dyes, cadmium, chromium, mercury, etc., are often highly toxic. Therefore, The water environment in the area is seriously polluted, causing damage and threat to the local environment

[0003] Although the domestic sewage has a small content of heavy metals, when it is discharged into rivers and lakes, it often causes algae to grow, water eutrophication, odor, and seriously pollutes water sources, which seriously threaten the quality of life and health of urban residents. Limits the city's own green development

Domestic sewage is generally characterized by high COD value, high SS content and high chroma. Although there are many methods to treat this kind of sewage, most of the treatment effects are not ideal, and the treatment requires special sites and equipment, so it is There is a need for a treatment agent that is easy to use and can efficiently reduce COD, SS and chroma in sewage