Industrial wastewater flocculating agent and preparation method thereof
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A technology for industrial wastewater and flocculants, which is applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sewage treatment, etc., can solve the problems of high drug consumption, slow flocculation and sedimentation, and low treatment efficiency. Achieve the effect of improving emulsifying power, short precipitation time and simple formula
Inactive Publication Date: 2015-12-30
GUILIN CHUNXIAO ENVIRONMENTAL PROTECTION TECH CO LTD
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Abstract
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Problems solved by technology
Due to the current disadvantages of slow flocculation and sedimentation and high drug consumption
Polymer flocculants such as basic polyaluminum chloride (PAC), polyaluminum sulfate, polyferric sulfate, etc., overcome the disadvantages of low processing efficiency of low molecular flocculants, but their cost is high, and when low temperature and low turbidity Poor processing effect
Organic flocculants are generally polymers, such as polyamine flocculants, quaternary ammonium starch-based flocculants, and polyacrylamide flocculants. Among them, polyacrylamide has the advantages of less dosage, strong ability to clarify water quality, and fast flocculation speed. It is not easily affected by the pH value of water, and the amount of sludge generated is less, which has been widely used. However, polyacrylamide has strong neurotoxicity and certain carcinogenicity. When a large amount of polyacrylamide is used to treat wastewater, it will produce polymer residues. , destroying the biological chain of the water body, thereby affecting human health
Method used
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Effect test
Embodiment 1
[0015] Take the following raw materials: polyacrylamide 15kg, polyacrylate 25kg, potassium aluminum sulfate 3kg, polysilicate 10kg, polyaluminum calcium chloride 3kg, ferric chloride 10kg, gypsum 5kg, silica 25kg, zeolite 8kg, lemon 9kg of ferric acid, 5kg of polyphosphorus ferric chloride, and 5kg of polyferric phosphate were mixed uniformly, crushed, added 50L of water, ball milled, dried, and passed through a 100-200 mesh sieve to obtain the industrial wastewater flocculant.
Embodiment 2
[0017] Take the following raw materials: polyacrylamide 22kg, polyacrylate 18kg, potassium aluminum sulfate 6kg, polysilicate 7kg, polyaluminum calcium chloride 6kg, ferric chloride 8kg, gypsum 8kg, silica 18kg, zeolite 13kg, lemon 6 kg of ferric acid, 3 kg of polyphosphorus ferric chloride, and 3 kg of polyferric phosphate were mixed uniformly, crushed, added 70 L of water, ball milled, dried, and passed through a 100-200 mesh sieve to obtain the industrial wastewater flocculant.
Embodiment 3
[0019] Take the following raw materials: 30kg of polyacrylamide, 10kg of polyacrylate, 9kg of potassium aluminum sulfate, 5kg of polysilicate, 9kg of polyaluminum calcium chloride, 5kg of ferric chloride, 10kg of gypsum, 10kg of silica, 18kg of zeolite, lemon 3 kg of ferric acid, 15 kg of polyphosphorus ferric chloride, and 1 kg of polyferric phosphate were mixed uniformly, crushed, added 90 L of water, ball milled, dried, and passed through a 100-200 mesh sieve to obtain the industrial wastewater flocculant.
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Abstract
The invention discloses an industrial wastewater flocculating agent and a preparation method thereof, belonging to the field of water treatment agents. The industrial wastewater flocculating agent comprises the following raw materials in parts by weight: 15-30 parts of polyacrylamide, 10-25 parts of polyacrylate, 3-9 parts of aluminum potassium sulfate, 5-10 parts of polysilicate, 3-9 parts of poly-aluminum calcium chloride, 5-10 parts of ferric chloride, 5-10 parts of gypsum, 10-25 parts of silica, 8-18 parts of zeolite, 3-9 parts of ferric citrate, 5-15 parts of polyphosphate ferric chloride, 1-5 parts of polymeric ferric sulfate and 50-90 parts of water. The industrial wastewater flocculating agent is short in flocculent precipitation time, good in effect and low in cost, is capable of improving the the emulsifying ability of water molecules and degrading harmful substances in water, particularly can be used for effectively treating high-concentration and high-turbidity wastewater and non-biochemical wastewater and can be widely applied to the treatment of municipal wastewater and various types of industrial wastewater as well as the water quality treatment of polluted rivers and lakes, and treated water can be circularly used.
Description
technical field [0001] The invention relates to an industrial wastewater flocculant and a preparation method thereof, belonging to the field of water treatment agents. Background technique [0002] Coagulation treatment is one of the key links in wastewater treatment, which can remove turbidity and pollution, and reduce the pollution load of subsequent sewage treatment. The flocculant is the key factor to determine the effect of coagulation treatment, and has an important impact on the operation status of the subsequent process, the final effluent water quality and cost. According to its chemical composition, flocculants can be generally divided into two types: inorganic flocculants and organic flocculants. Inorganic flocculants include inorganic coagulants and inorganic polymer flocculants; organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. Flocculants are mainly groups with positive (negative)...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/62
Inventor 费正华黄云鹤
Owner GUILIN CHUNXIAO ENVIRONMENTAL PROTECTION TECH CO LTD
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