A high-strength carrier material for sewage treatment and its preparation method
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A carrier material and sewage treatment technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, anaerobic digestion treatment, etc., can solve the problems of inappropriate porosity, small specific surface area, short life, etc., to achieve Appropriate porosity, high strength and long service life
Active Publication Date: 2019-01-22
BEIJING SOUND ENVIRONMENTAL ENG +1
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[0003] Based on the problems existing in the prior art, the purpose of the present invention is to provide a high-strength carrier material for sewage treatment and its preparation method, which has excellent strength, long life and suitable porosity, and can solve the problem of existing microbial carrier. Poor, short life, small specific surface area, inappropriate porosity, etc.
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preparation example Construction
[0019] The preparation of the above-mentioned carrier material also includes:
[0020] Add activated clay and activated carbon together with hydroxyethyl methacrylate and water and mix evenly, then add porogen and stir quickly, then add crosslinking agent and catalyst, and proceed to the subsequent steps.
[0021] In the preparation of the above-mentioned carrier material, adding the uniformly mixed material into the mold for heat treatment is as follows: adding the uniformly mixed material into the mold and sealing it, and heating at a temperature of 60-80°C for 2-12 hours;
[0022] The water washing process is as follows: soak the pelletized material in deionized water for 7 days, and replace the deionized water every 24 hours.
[0023] The embodiment of the present invention also provides a method for preparing a high-strength carrier material for sewage treatment, which is used to prepare the above-mentioned high-strength carrier material, comprising the following steps: ...
Embodiment 1
[0041] This embodiment provides a high-strength carrier material for sewage treatment, which is a biological carrier, which consists of: 25 g of hydroxyethyl methacrylate, 1 g of activated clay, 1 g of activated carbon, 0.25 g of sodium lauryl sulfate, 0.25 g of N,N'-methylenebisacrylamide, 0.25 g of ammonium persulfate, 0.25 g of sodium bisulfite, and 72 g of water.
Embodiment 2
[0043] This embodiment provides a high-strength carrier material for sewage treatment, which is a biological carrier, which consists of: 30g of hydroxyethyl methacrylate, 0.5g of activated clay, 2g of activated carbon, 0.3g of dodecanol, N, 0.3 g of N'-methylenebisacrylamide, 0.45 g of ammonium persulfate, 0.45 g of sodium bisulfite, and 66 g of water.
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Abstract
The present invention discloses a high-strength carrier material used for sewage treatment. The carrier material is composed of the following components: hydroxyethyl methacrylate, a crosslinking agent and a catalyst. The preparation method comprises the following steps: performing uniform mixing on the hydroxyethyl methacrylate and water, then adding the crosslinking agent and the catalyst, adding the uniformly-mixed material into a mold for heat treatment, performing cooling, performing demoulding, performing pelletizing, and performing water washing treatment, so as to obtain the high-strength carrier material used for sewage treatment. The carrier material provided by the invention has stronger water absorption capacity, can realize a good moist environment, has long service life, highstrength and a high anti-wear and extrusion degree, can adapt to pressure generated during mechanical stirring and transportation, has suitable porosity, can enrich a large number of hydrolytic bacteria, denitrifying bacteria and anaerobic ammonium oxidation bacteria, and has strong adsorption capacity to microorganisms, firm membrane forming and extremely strong promotion value.
Description
technical field [0001] The invention relates to the field of sewage treatment, in particular to a high-strength carrier material for sewage treatment and a preparation method thereof. Background technique [0002] With the reduction of water resources, sewage treatment is getting more and more attention. Attaching microorganisms to the carrier is a mainstream method used in modern sewage treatment. The decomposition ability of microorganisms is used to degrade the organic components in sewage and purify the water. The use of microorganisms to treat sewage requires attaching them to the carrier, and placing the carrier in the sewage can effectively utilize the microorganisms for a long time. Most of the microbial carriers used in sewage treatment in the early days were hydrogels such as sodium alginate, carrageenan, and polyvinyl alcohol. Due to the poor biochemical stability, low mechanical strength, and short life of these substances, their industrial applications have bee...
Claims
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Application Information
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