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Efficient water treatment flocculant

A flocculant and water treatment technology, which is applied in the field of high-efficiency water treatment flocculants, can solve the problems of unsatisfactory removal of organic matter, ineffective effect, high cost, etc., and achieve good coagulation effect, fast settling speed, and less dosage.

Inactive Publication Date: 2008-12-24
郭振岳 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the inorganic flocculant is used alone, the flocculation effect is good, but the dosage is large, the cost is high, and the removal effect on organic matter is not ideal
Polymer organic flocculants have a strong ability to remove organic matter, but the unit price is high, and the effect on other impurities such as phosphate is not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Aluminum sulfate 70%, polyferric sulfate 15%, polyacrylamide 10%, activated carbon 5%.

[0021] Dissolve the medicine in the medicine-dissolving pool with a concentration of 1-10%, and stir. It is added to the sewage to be treated by a pump or a flow meter, and the treated water is obtained after coagulation and sedimentation. The product has high floc strength, large alum formation, fast sedimentation, and good decolorization effect.

[0022] After mixing the above-mentioned high-efficiency flocculant with chlorine dioxide at a ratio of 10:1, it is added to the sewage for coagulation treatment, which has the effect of disinfection and sterilization while purifying the water, and the dosage is controlled at 20-100 mg / L.

Embodiment 2

[0024] 10% by weight of alumina, 20% of ferrous sulfate, 55% of polyaluminum chloride, and 15% of water-soluble starch are compounded into a flocculant. It is used for coagulation treatment of dye wastewater, and the dosage is controlled at 50-100 mg / L, which can reduce the chromaticity to 50 times or less.

Embodiment 3

[0026] 10% of alumina, 5% of bentonite, 20% of ferrous sulfate, 50% of zinc sulfate and 15% of water-soluble starch by weight are compounded into a flocculant. Dissolve the medicine in the medicine-dissolving pool with a concentration of 1-10%, and stir. It is added to the sewage to be treated by a pump or a flow meter, and the treated water is obtained after coagulation and sedimentation. The product has high floc strength, large alum formation, fast sedimentation, and good decolorization effect.

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Abstract

The invention relates to a high efficiency water treatment flocculant for drinking water and water treatment comprising a metal cation flocculant which is characterized in that the high efficiency water treatment flocculant also comprises a high efficiency adsorption component and an assistant medicament to be remixed, inwhich the weight ratio is: the high efficiency adsorption component 5-15%, the metal cation flocculant 50-85%, the assistant medicament 5-15%. The obvious characteristics of the invention are that each component can play the advantages of high intensity of the flocs of the inorganic flocculant and large flocs of the polymeric flocculant, overcomes the drawback of small flocs of the inorganic flocculant and low intensity of the flocs of the organic flocculant. The existence of the high adsorption component plays the action of adsorption of the organic compounds and heavy metal ion which are difficult to flocculat and precipitate, also plays the role of aid-coagulation, decoloration and deflavour. Thus the flocculant of the invention has advantages of good coagulation effect, large alum blossom, rapid settling velocity, good effluent quality and few dosage or the like.

Description

technical field [0001] The invention relates to a high-efficiency water treatment flocculant for drinking water and sewage treatment. Background technique [0002] Conventional water treatment methods include tertiary treatment such as physicochemical, biological and advanced treatment. The physicochemical treatment process, i.e. coagulation and sedimentation, is one of the most important treatment units in water and wastewater treatment. The coagulation process needs to add flocculants to achieve solid-liquid separation, and the quality of flocculants directly affects the treatment effect. [0003] Existing flocculants for drinking water and wastewater treatment include inorganic flocculants and organic polymer flocculants, such as polyaluminum chloride, polyferric chloride and polyacrylamide, etc. In recent years, cationic quaternary ammonium salts have been developed. Type polyacrylamide and other flocculants. When the inorganic flocculant is used alone, the flocculati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 刘伟
Owner 郭振岳
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