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Treatment agent for treating heavy metal sewage, and preparation method and application thereof

A heavy metal and treatment agent technology, applied in chemical instruments and methods, water/sewage treatment, adsorption water/sewage treatment, etc., can solve the problems of poor purification effect of heavy metals, eutrophication of water body, weak treatment capacity, etc., and achieve easy removal and treatment, improvement of purification capacity, and improvement of purification efficiency

Inactive Publication Date: 2016-03-09
马鞍山清净环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that existing sewage treatment agents have poor purification effect on heavy metals, are unstable, and are likely to cause eutrophication of water bodies and secondary pollution, especially the problem of weak treatment capacity for chromium and manganese in sewage, the present invention provides a A treatment agent for treating heavy metal sewage and its preparation method and application. The sewage treatment agent prepared by the present invention has good stability, can not only adsorb particulate matter and other impurities in water, but also has a strong adsorption effect on heavy metal ions in sewage. The water quality after treatment fully complies with the national discharge standard, without secondary pollution. The invention has low requirements, simple operation, wide source of raw materials, cheap and easy to obtain, good purification effect on sewage, especially sewage containing heavy metals, and is suitable for industrialization Production

Method used

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  • Treatment agent for treating heavy metal sewage, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Take 18 parts of bentonite and 8 parts of activated carbon, grind them, and take 90 mesh particles for later use;

[0040] (2) Dissolve 5 parts of polyaluminum chloride, 3 parts of ferric chloride and 12 parts of sodium dihydrogen phosphate in 30 parts of deionized water, and stir for 10 minutes;

[0041] (3) Add 4 parts of dioctyltin maleate to the mixed solution obtained in step (2), stir evenly, then add 15 parts of ferrous ammonium sulfate and 7 parts of sodium carbonate, stir for 5 minutes, heat in a water bath to 35°C, add 8 parts of polyurethane, 5 parts of sodium hydroxymethylcellulose and 1 part of acrylamide, stirred for 15 minutes, and stood for 30 minutes;

[0042] (4) Add the solid mixture obtained in step (1) to the mixed solution in step (3), stir for 20 minutes, dry, and make granules to obtain a treatment agent for heavy metal sewage.

[0043] This example is applied in the second sewage treatment plant of an industrial park in northern Jiangsu. Th...

Embodiment 2

[0046] This example is applied to a sewage treatment plant in an industrial park in northern Jiangsu. The sewage treatment agent obtained by the above scheme is mixed with sewage from a sewage treatment plant in an industrial park in Jiangsu at a mass ratio of 1:130, and drained after 5 hours.

[0047] Example 3

Embodiment 3

[0049] This example is applied to a sewage treatment plant in an industrial park in southern Anhui. The sewage treatment agent obtained by the above scheme is mixed with sewage from a sewage treatment plant in an industrial park in Jiangsu at a mass ratio of 1:140, and drained after 6 hours.

[0050] The test data of the above three embodiments are as follows.

[0051]

[0052] Analyzing the above experimental results, it can be found that the treatment effect of the present invention is good.

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Abstract

The invention discloses a treatment agent for treating heavy metal sewage, and a preparation method and an application thereof, and belongs to the field of sewage treatment. The preparation method comprises the following steps: 1, grinding bentonite and active carbon, and taking 90 mesh particles for later use; 2, dissolving polyaluminum chloride, iron trichloride and sodium dihydrogen phosphate in deionized water, and stirring; 3, adding a stabilizer to a mixed solution obtained in step 2, uniformly stirring the obtained solution, adding ammonium ferrous sulfate and sodium carbonate, stirring the obtained solution, carrying out water bath heating until the temperature of the stirred solution is 35DEG C, adding polyurethane, carboxymethylcellulose sodium and acrylamide, stirring the obtained solution, and standing the stirred solution; and 4, adding a solid mixture obtained in step 1 to a mixed solution obtained in step 3, stirring, the obtained solution, and drying the stirred solution to prepare particles which are the treatment agent for treating the heavy metal sewage. The sewage treatment agent prepared in the invention has the advantages of good stability, very strong adsorption effect on heavy metal ions, no secondary pollution, good purification effect, and suitableness for industrial production.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a treatment agent for treating heavy metal sewage, its preparation method and application. Background technique [0002] Water pollution is one of the major environmental problems facing our country. With the development of my country's industry, the discharge of industrial wastewater is increasing day by day. After the industrial wastewater that does not meet the discharge standards is discharged into the water body, it will pollute the surface water and groundwater. Once the water body is polluted, it is extremely difficult to recover in a short time. After the water body is polluted, not only will the water quality fail to meet the standards of drinking water and fishery water, but it will also increase the chemical harmful substances and hardness in the groundwater, affecting people's production and life. my country's water resources are not rich. If calculated a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/52C02F1/70C02F1/28C02F1/66C02F101/20C02F101/22
CPCC02F1/00C02F1/283C02F1/5245C02F1/66C02F1/70C02F2101/20C02F2101/206C02F2101/22
Inventor 王明明其他发明人请求不公开姓名
Owner 马鞍山清净环保科技有限公司
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