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Ultrastrong adsorption type polyaluminum chloride-based flocculant

A polyaluminum chloride, adsorption-type technology, applied in the field of water treatment, can solve the problems of turbidity, poor water purification effect, light alum, etc., and achieve the effect of fast reaction speed, good coagulation effect, and wide range of applicable pH

Inactive Publication Date: 2018-12-14
黑龙江明强科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is a super-adsorption polyaluminum chloride-based flocculant, which is used to solve the problem of light, low-temperature and low-turbidity water purification caused by aluminum salts in the current sewage treatment. The problem of poor effect, turbidity when the dosage is too large, and the problem of difficult solid-liquid separation of the adsorbent are alleviated

Method used

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  • Ultrastrong adsorption type polyaluminum chloride-based flocculant
  • Ultrastrong adsorption type polyaluminum chloride-based flocculant

Examples

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Embodiment 1

[0018] This super-adsorption polyaluminum chloride-based flocculant is prepared from 30% humic acid in mass fraction, 30% activated carbon, and 40% polyaluminum chloride. The above humic acid, powder Activated carbon and polyaluminum chloride are prepared into a slurry with a mass concentration of 60%, vigorously stirred evenly, and static precipitation. After the supernatant is completely clarified, the solid and liquid are separated; the solid part is vacuum-dried to obtain a black powdery solid. The powdery solid is a super-absorbing polyaluminum chloride-based flocculant.

[0019] Table 1 shows the application of this flocculant in a certain electroplating wastewater. The super-adsorption type polyaluminum chloride-based flocculant prepared in this example was used at a rate of 50g / m 3 The amount of the above-mentioned electroplating wastewater is directly put into the above-mentioned electroplating wastewater, and the above-mentioned electroplating wastewater is treated. ...

Embodiment 2

[0023] This super-adsorption polyaluminum chloride-based flocculant is prepared from 20% humic acid in mass fraction, 30% activated carbon, and 50% polyaluminum chloride. The above humic acid, powder Activated carbon and polyaluminum chloride are formulated into a slurry with a mass concentration of 55%, vigorously stirred evenly, and statically precipitated. After the supernatant is completely clarified, the solid and liquid are separated; the solid part is vacuum-dried to obtain a black powdery solid, and the black The powdery solid is a super-absorbing polyaluminum chloride-based flocculant.

[0024] Table 2 shows the application of this flocculant in landscape water. The super-adsorption type polyaluminum chloride-based flocculant prepared in this example was used at a rate of 50g / m 3 The amount of the above-mentioned landscape water is directly put into the above-mentioned landscape water, and the above-mentioned landscape water is treated. After the treatment, the clear ...

Embodiment 3

[0028] This super-adsorption polyaluminum chloride-based flocculant is prepared from 30% humic acid in mass fraction, 20% activated carbon, and 50% polyaluminum chloride. The above humic acid, powder Activated carbon and polyaluminum chloride are formulated into a slurry with a mass concentration of 65%, vigorously stirred evenly, and statically precipitated. After the supernatant is completely clarified, the solid and liquid are separated; the solid part is vacuum-dried to obtain a black powdery solid. The powdery solid is a super-absorbing polyaluminum chloride-based flocculant.

[0029] Table 3 shows the application of this flocculant in a certain high-concentration organic wastewater. The super-absorbent polyaluminum chloride-based flocculant prepared in this example was used at a rate of 90g / m 3 The amount of the above-mentioned high-concentration organic wastewater is directly put into the above-mentioned high-concentration organic wastewater, and the above-mentioned hig...

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Abstract

The invention relates to an ultrastrong adsorption type polyaluminum chloride-based flocculant. The ultrastrong adsorption type polyaluminum chloride-based flocculant is prepared from, by mass, 20-40%of humic acid, 20-40% of activated carbon and 20-50% of polyaluminum chloride. The above humic acid, powdered activated carbon and polyaluminum chloride are used for preparing slurry with a mass concentration of 50-80%; then violent stirring is carried out so as to realize uniform mixing; then standing is performed for sedimentation; after a supernatant is completely clarified, solid-liquid separation is conducted; and a solid part is subjected to vacuum drying so as to obtain a black powdery solid which is the ultrastrong adsorption type polyaluminum chloride-based flocculant. The ultrastrong adsorption type polyaluminum chloride-based flocculant of the invention combines the characteristics of a flocculating agent and an adsorbent, and solves the defects that alum blossom produced by analuminum salt is light in weight, has poor water purification effect at low temperature and low turbidity and incurs turbidity when a dosage is too large; and the flocculant also alleviates the disadvantage of difficulty in solid-liquid separation of adsorbents.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a super-adsorption polyaluminum chloride-based flocculant. Background technique [0002] Due to the shortage of fresh water resources, water reuse has become extremely important, and how to effectively remove impurities in water is the focus of research. The coagulation-sedimentation method has the advantages of cost-effectiveness, simple process and convenient operation, and is widely used in water and wastewater treatment. Whether it is urban and industrial water supply treatment, or urban and industrial wastewater treatment, coagulation and sedimentation are regarded as an indispensable technical link in the process. The quality of the coagulation treatment depends largely on the quality of the coagulant. Coagulant is a high value-added and high-tech water treatment agent, which largely determines the innovation and development of water treatment technology, the simp...

Claims

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Application Information

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IPC IPC(8): B01J20/24C02F1/28C02F1/52B01J20/30
CPCB01J20/08B01J20/20B01J20/24C02F1/281C02F1/283C02F1/286C02F1/5236C02F1/5245C02F1/5263
Inventor 宋亚瑞
Owner 黑龙江明强科技有限公司