Coagulant for industrial water pretreatment

A technology for industrial water and pretreatment, applied in water/sewage treatment, oxidized water/sewage treatment, water/sludge/sewage treatment, etc. Slow speed and other problems, to achieve the effect of improving effluent quality

Inactive Publication Date: 2015-02-18
SUZHOU FUQINUO WATER TREATMENT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a coagulant for industrial water pretreatment in view of the deficiencies of the above-mentioned prior art. The water quality requirements have better solved the problems caused by the slow hydrol

Method used

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  • Coagulant for industrial water pretreatment

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Effect test

Embodiment 1

[0028] A coagulant for industrial water pretreatment according to the present invention comprises coal-based granular activated carbon and polyaluminum-ferric silicate, and the mass-volume ratio of the two is 2:1.

[0029] The above-mentioned coal-based granular activated carbon has a particle size of 0.35-0.45mm and an apparent density of 0.35-0.42.

Embodiment 2

[0031] A coagulant for industrial water pretreatment according to the present invention comprises coal-based granular activated carbon and polyaluminum-ferric silicate, and the mass-volume ratio of the two is 8:1.

[0032] The above-mentioned coal-based granular activated carbon has a particle size of 0.35-0.45mm and an apparent density of 0.35-0.42.

Embodiment 3

[0034] A coagulant for industrial water pretreatment according to the present invention comprises coal-based granular activated carbon and polyaluminum-ferric silicate, and the mass-volume ratio of the two is 12:1.

[0035] The above-mentioned coal-based granular activated carbon has a particle size of 0.35-0.45mm and an apparent density of 0.35-0.42.

[0036] The coal-based granular activated carbon used in the present invention has unique advantages because of its high strength, well-developed pores, large specific surface area, and especially large micropore volume. Coal-based activated carbon has a strong adsorption capacity for organic matter, free chlorine and harmful gases in the air. It is an excellent adsorbent for deep purification of urban drinking water and is used to remove bacteria and toxic gases in the air. Coal-based activated carbon has a well-developed pore structure, good chemical stability and mechanical strength, and is an excellent broad-spectrum carbona...

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Abstract

The invention discloses a coagulant for industrial water pretreatment. The coagulant comprises coal-based granular activated carbon and polysilicate ferric aluminum in the mass volume ratio of (2:1)-(12:1); the coal granular activated carbon has the grain size of 0.35-0.45mm and the apparent density of 0.35-0.42; the polysilicate ferric aluminum is oxidizing polysilicate ferric aluminum; the mole ratio of silicon, aluminum and iron in the oxidizing polysilicate ferric aluminum is 1:1.5:2. Compared with the conventional coagulant, the coagulant provided by the invention has the advantages as follows: the coagulant can greatly improve the quality of outlet water, so that the requirement of the quality of inlet water of subsequent water treatment equipment can be completely met; the problems such as a poor coagulating effect caused by slow coagulant hydrolysis speed, multiple intermediate hydrolysis products, small coagulant particle density, and high metal ion content in the outlet water in water treatment application of the conventional aluminum salt, ferric salt and other coagulants can be solved better.

Description

technical field [0001] The invention relates to the technical field of industrial water pretreatment, in particular to a coagulant for industrial water pretreatment. Background technique [0002] Industrial water usually includes process water, boiler water, washing water, and cooling water, but mainly boiler water and cooling water. The water quality requirements of boiler water vary according to the working pressure and temperature of the boiler. No matter what kind of boiler water is used, it has strict restrictions on the hardness of water. Anything that can cause corrosion, scaling and Most or all of the impurities such as dissolved oxygen, soluble silicon dioxide, iron and residual chlorine that cause the phenomenon of soda and water to poison the ion exchange resin should be removed. [0003] The average industrial cooling water consumption accounts for about 67% of the total industrial water consumption, among which the petroleum, chemical and steel industries are t...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/72
CPCC02F1/5236C02F1/283C02F1/72
Inventor 吴彦
Owner SUZHOU FUQINUO WATER TREATMENT EQUIP
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