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A kind of polysilicon acrylate aluminum cerium flocculant and its preparation method and application

A polysilicon acrylic aluminum, flocculant technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of low heavy metal removal rate, few types of heavy metals, flocculant Large dosage and other problems, to achieve the effect of high removal rate of heavy metals, less dosage, and efficient removal

Active Publication Date: 2021-10-29
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of current flocculants to treat heavy metal-contaminated waste liquids has problems such as large amount of flocculants, low removal rate of heavy metals, few types of applicable heavy metals, slow flocculation speed, and difficult filtration.

Method used

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  • A kind of polysilicon acrylate aluminum cerium flocculant and its preparation method and application
  • A kind of polysilicon acrylate aluminum cerium flocculant and its preparation method and application
  • A kind of polysilicon acrylate aluminum cerium flocculant and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 The influence of aluminum ash and tuff powder mass ratio on the removal rate of heavy metals in the prepared flocculant adsorption water

[0030] The tuff is ground and passed through a 200-mesh sieve to obtain tuff powder. According to the mass ratio of 0.5:10, 0.7:10, 0.9:10, 1:10, 2:10, 3:10, 3.2:10, 3.5:10, 4:10, weigh aluminum ash and tuff powder respectively, mix and stir Evenly, nine groups of tuff mixed powder are obtained. According to the liquid-solid ratio of 0.6:1mL / mg, the mixed powder of water and tuff was weighed respectively, mixed and stirred evenly to obtain nine groups of tuff slurry. Add concentrated sulfuric acid to the nine groups of tuff slurry, stir evenly, make the slurry pH 1, and age for 3 hours to obtain nine groups of silicon-aluminum polymerization slurry. According to the volume ratio of acrylic acid and silicon-aluminum polymerization slurry of 10%, acrylic acid was added to the nine groups of silicon-aluminum polymerization s...

Embodiment 2

[0038] Example 2 Effect of the volume ratio of acrylic acid and silicon-aluminum polymerization slurry on the removal rate of heavy metals in the prepared flocculant adsorption water

[0039]Grind the tuff and pass through a 300-mesh sieve to obtain tuff powder. According to the mass ratio of 3:10, aluminum ash and tuff powder were weighed respectively, mixed and stirred evenly to obtain tuff mixed powder, and a total of nine groups of tuff mixed powder were weighed according to the same mass ratio. According to the liquid-solid ratio of 0.8:1mL / mg, the water and tuff mixed powder were weighed respectively, mixed and stirred evenly, and nine groups of tuff slurry were also obtained. Add concentrated sulfuric acid to the nine groups of tuff slurry respectively, stir evenly to make the pH of the slurry 1.5, and age for 4.5 hours to obtain the nine groups of silicon-aluminum polymerization slurry. According to the volume ratio of acrylic acid and silicon-aluminum polymerization ...

Embodiment 3

[0045] Example 3 The effect of the mass ratio of cerium ammonium nitrate and acrylic acid mixed silicon-aluminum polymerization slurry on the removal rate of heavy metals in the prepared flocculant adsorption water

[0046] The tuff is ground and passed through a 400-mesh sieve to obtain tuff powder. Weigh aluminum ash and tuff powder respectively according to the mass ratio of 3:10, mix and stir evenly to obtain tuff mixed powder, and weigh nine groups of tuff mixed powder according to the same mass ratio. According to the liquid-solid ratio of 1:1mL / mg, the mixed powder of water and tuff was weighed respectively, mixed and stirred evenly, and nine groups of tuff slurry were also obtained. Add concentrated sulfuric acid to the nine groups of tuff slurry respectively, stir evenly to make the slurry pH 2, and age for 6 hours to obtain nine groups of silicon-aluminum polymerization slurry. According to the volume ratio of acrylic acid and silicon-aluminum polymerization slurry ...

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PUM

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Abstract

The invention discloses a polysilicon acrylate aluminum cerium flocculant and its preparation method and application. The tuff rock is ground and sieved to obtain the tuff powder; the aluminum ash and the tuff powder are respectively weighed and mixed, and stirred evenly to obtain the tuff mixed powder; Weigh the mixed powder of water and tuff rock and mix them evenly to obtain tuff slurry; add concentrated sulfuric acid to the tuff slurry and stir evenly so that the pH of the slurry is 1-2, and age for 3-6 hours to obtain a silica-aluminum polymerization slurry; Add acrylic acid to the aluminum polymerization slurry, stir evenly, and age for 1-3 hours to obtain acrylic acid mixed silicon-aluminum polymerization slurry; weigh cerium ammonium nitrate and acrylic acid mixed silicon-aluminum polymerization slurry, mix, stir evenly, under the temperature condition of 20-80℃ Aging for 6 to 12 hours, vacuum drying, grinding, and passing through a 200 to 400 mesh sieve to obtain polysilicon acrylate aluminum cerium flocculant. The flocculant prepared by the invention can efficiently remove various heavy metal pollutants in the water body, has less dosage and high heavy metal removal rate.

Description

technical field [0001] The invention relates to the technical field of resource utilization of non-metallic ore tuff, in particular to a polysilicon acrylate aluminum cerium flocculant and its preparation method and application. Background technique [0002] Tuff is a kind of pyroclastic rock containing a large amount of active silica-alumina substances. Compared with bentonite, perlite, zeolite and other silicon-aluminum salt series non-metallic minerals, the market price of tuff is lower. At present, tuff resource utilization is narrow, and most of them are used as coarse and fine aggregates. A small number of enterprises use tuff to produce concrete admixtures and cement raw materials. Generally speaking, the effect of tuff is limited, and the resource utilization rate is low. Therefore, it is necessary to develop other uses of tuff, open up the use path of tuff, improve the utilization rate of tuff resources, and increase economic benefits. [0003] At present, the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/56C08F120/06C02F101/20
CPCC02F1/56C02F2101/20C08F120/06
Inventor 黄涛宋东平刘万辉张树文周璐璐徐娇娇
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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