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A composite adsorption and sludge technology, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of short use time, easy to fall powder, low adsorption efficiency, etc., achieve good effect, enhance adsorption performance, enhance Adsorptive effect
Inactive Publication Date: 2015-09-09
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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.
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[0017] The present invention will be described in detail below through specific examples.
[0018] A modified sludge composite adsorbent, made of the following raw materials in parts by weight (kg): sludge 135, corn stalks 15, peanut shells 18, manganese ore powder 13, zinc chloride 42, magnesium silicate 14, dioxide Silicon 7, polyvinyl alcohol 4, polyacrylamide 4, phytondo essential oil 3, tourmaline powder 6, borax 5, activated bauxite 7, distilled water in proper amount;
[0019] A kind of modified sludge composite adsorbent of the present invention is made by the following specific steps:
[0020] (1) Air-dry the sludge from the sewage treatment plant under natural conditions, and then dry it in an oven at 110°C for 18 hours. After cooling, grind it into sludge particles with a particle size of 1-3mm for use;
[0021] (2) Dry the corn stalks and peanut shells in an oven at 80°C until they reach a constant weight, and after cooling, crush them to a size of 1-5 mm for use;...
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Abstract
The invention discloses a modified sludge composite 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, 2-4 parts of phytoncide essential oil, 6-7 parts of tourmaline powder, 4-6 parts of borax, 6-8 parts of activated alumina and a proper amount of distilled water. By interaction of the added phytoncide essential oil, tourmaline powder, borax, activated alumina, sludge and activated carbon, adsorptivity and bactericidal property of the activated carbon are enhanced. The composite adsorbent is nontoxic and pollution-free, is healthy and harmless to human body, has a good effect when used in water purification, and is beneficial to body health. The adsorbent provided by the invention is nontoxic and environmentally friendly, has advantages of simple preparation technology, wide material source, good chemical stability and high mechanical property, and is worthy of popularization.
Description
technical field [0001] The invention relates to the field of adsorbents, in particular to a modified sludge composite 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 capacity. In re...
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