Novel composite sludge activated carbon adsorbent

Abstract

The invention discloses a novel composite sludge activated carbon adsorbent which is characterized by being prepared from the following raw materials, by weight, 100-150 parts of sludge, 13-17 parts of corn straw, 15-24 parts of peanut shell, 10-15 parts of manganese ore powder, 30-50 parts of zinc chloride, 13-16 parts of magnesium silicate, 5-8 parts of silicon dioxide, 3-5 parts of polyvinyl alcohol, 3-5 parts of polyacrylamide, 6-9 parts of teflon powder, 5-7 parts of attapulgite powder, 7-9 parts of calcium sulphide and a proper amount of distilled water. with addition of the teflon powder, attapulgite powder and calcium sulphide, acidic and alkali resistance, bactericidal activity and adsorption capacity of the sludge activated carbon are greatly enhanced, and wear rate during the preparation process is reduced. The source of materials is wide, and cost is low. The preparation process is simple; production efficiency is high; and no secondary pollution is caused. The adsorbent is environmentally friendly, has a wide range of adsorption and is worthy of popularization.

Description

technical field [0001] The invention relates to the field of adsorbents, in particular to a novel composite sludge activated carbon adsorbent and a preparation method thereof. Background technique [0002] With the acceleration of urbanization, the increase of urban population and the strengthening of environmental protection awareness, the discharge of urban industrial wastewater and domestic sewage is increasing, the rate of urban sewage treatment is also increasing year by year, and the sludge generation rate of sewage plants is also increasing sharply. The sludge of the sewage treatment plant has a high water content, a large amount of organic matter, toxic and harmful substances, and semi-dry solid waste with complex rheology. It has a large capacity, is easily corrupted, unstable, and has a bad smell. cause serious environmental pollution. Activated carbon is a porous adsorption material with rich pore structure, high specific surface area and strong adsorption ca...

AI Technical Summary

Problems solved by technology

At present, there are mainly chemical, biological, and photocatalyst products on the market. These products are expensive and have certain restrictions on use conditions. Activated carbon has the advantages of affordable price, convenient use, no pollution, no side effects, and ideal use effects. However, Ordinary activated carbon adsorbents are easy to be saturated, easy to fall powder and scattered, the use time is not long, and the separation is not easy, and the adsorption efficiency is low.