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Preparation method of domestic sewage treatment agent

A domestic sewage and treatment agent technology, applied in water/sewage treatment, water treatment parameter control, adsorption water/sewage treatment, etc., can solve problems such as secondary pollution, failure to meet discharge standards, high cost of physical treatment methods, etc., to achieve High removal rate, effect of reducing COD and BOD value

Inactive Publication Date: 2018-05-08
WUHU WANJIANG INTPROP OPERATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biological method takes a long time, slow speed, and low efficiency; the physical treatment method is expensive, and the treatment is not thorough, which is likely to cause secondary pollution and fail to meet the emission standards

Method used

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  • Preparation method of domestic sewage treatment agent
  • Preparation method of domestic sewage treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation method of described domestic sewage treatment agent is:

[0025] (1) pretreat bentonite and attapulgite by 350°C high-temperature roasting for 30 minutes;

[0026] (2) dissolving ferric chloride hydrate and aluminum chloride hexahydrate in water, adding 0.1mol / L sodium hydroxide solution to adjust the pH of the water body to be 9;

[0027] (3) Add the bentonite and attapulgite obtained in step (1) to the mixed solution obtained in step (2) and stir for 30 minutes; suction filter, dry the filter residue and roast at a high temperature of 420° C. for 4 hours, and cool naturally for subsequent use;

[0028] (4) Mix the product obtained in step (3) with rare-earth modified vermiculite, polyaluminum chloride, polyferric sulfate, and activated carbon, stir evenly, and pulverize to a particle size of 80 to 120 meshes to obtain the described Domestic sewage treatment agent; and used in conjunction with hydrogen peroxide in domestic sewage treatment.

[0029] T...

Embodiment 2

[0033] A kind of preparation method of domestic sewage treatment agent is:

[0034] (1) Bentonite and attapulgite were pretreated by 380°C high-temperature roasting for 35 minutes;

[0035] (2) dissolving ferric chloride hydrate and aluminum chloride hexahydrate in the water of formula quantity, adding 0.3mol / L sodium bicarbonate solution to regulate the pH of water body is 10;

[0036] (3) Add the bentonite and attapulgite obtained in step (1) to the mixed solution obtained in step (2) and stir for 25 minutes; suction filter, dry the filter residue and roast at a high temperature of 440° C. for 3 hours, and cool naturally for subsequent use;

[0037] (4) Mix the product obtained in step (3) with rare-earth modified vermiculite, polyaluminum chloride, polyferric sulfate, and activated carbon, stir evenly, and pulverize to a particle size of 80 to 120 meshes to obtain the described It is a domestic sewage treatment agent; it is also used in conjunction with the formula amount ...

Embodiment 3

[0042] A kind of preparation method of domestic sewage treatment agent is:

[0043] (1) Bentonite and attapulgite were pretreated by 380°C high-temperature roasting for 20 minutes;

[0044] (2) dissolving ferric chloride hydrate and aluminum chloride hexahydrate in water, adding 0.5mol / L sodium hydroxide solution to adjust the pH of the water body to be 11;

[0045] (3) Add the bentonite and attapulgite obtained in step (1) to the mixed solution obtained in step (2) and stir for 30 minutes; suction filter, dry the filter residue and roast at a high temperature of 460° C. for 2 hours, and cool naturally for later use;

[0046] (4) Mix the product obtained in step (3) with rare-earth modified vermiculite, polyaluminum chloride, polyferric sulfate, and activated carbon, stir evenly, and pulverize to a particle size of 80 to 120 meshes to obtain the described It is a domestic sewage treatment agent; and it is used in conjunction with the formula amount of hydrogen peroxide in the...

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Abstract

The invention provides a preparation method of a domestic sewage treatment agent. The preparation method includes the following steps that bentonite and attapulgite are subjected to high-temperature roasting pretreatment, then the mixture is soaked in a mixed solution composed of ferric salt and aluminum salt, after the pH is adjusted, bentonite and attapulgite loaded with iron-aluminum oxides areobtained through roasting, after the bentonite and attapulgite loaded with the iron-aluminum oxides are mixed with rare earth modified vermiculite, poly aluminum chloride, polyferric sulfate and activated carbon, the domestic sewage treatment agent is obtained, and the domestic sewage treatment agent is cooperated with hydrogen peroxide in use. The domestic sewage treatment agent obtained through the preparation method, the domestic sewage treatment agent is high in removal rate of total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD and SS in water in a short time, no secondary pollution is caused, and the domestic sewage treatment agent has the functions of disinfection, bacteriostasis and flocculation.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a preparation method of a domestic sewage treatment agent. Background technique [0002] With the improvement of people's living standards, the discharge of domestic sewage is becoming more and more serious. Domestic sewage is mainly various wastewater generated in people's daily life, mainly washing sewage, which contains a large amount of cellulose, starch and sugar. It also contains inorganic salts such as chloride, sulfate, phosphate, etc. It is characterized by high content of nitrogen, phosphorus, and sulfur, and it is easy to produce foul odor under the action of anaerobic bacteria. [0003] In recent years, the treatment process of domestic sewage has also been continuously improved, including biological treatment methods and physical treatment methods. The biological method takes a long time, slow speed and low efficiency; the physical treatment meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/28C02F1/72C02F1/52B01J20/30B01J20/20C02F101/10
CPCB01J20/02B01J20/10B01J20/20C02F1/00C02F1/281C02F1/283C02F1/5236C02F1/722C02F1/725C02F2101/10C02F2209/08C02F2209/10C02F2209/16C02F2209/18C02F2303/04
Inventor 不公告发明人
Owner WUHU WANJIANG INTPROP OPERATION CENT CO LTD
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