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Domestic sewage treatment agent

A domestic sewage and treatment agent technology, applied in the field of water treatment, can solve the problems of failing to meet discharge standards, secondary pollution, slow speed, etc., to reduce COD and BOD values, reduce suspended solids and small particles, and improve adsorption effect Effect

Inactive Publication Date: 2018-04-06
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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Embodiment 1

[0024] A domestic sewage treatment agent, comprising the following raw materials in parts by weight: 38 parts of rare earth modified vermiculite, 26 parts of bentonite, 14 parts of attapulgite, 4 parts of iron salt, 6 parts of aluminum salt, 15 parts of polyaluminum chloride, 14 parts of iron sulfate, 12 parts of activated carbon, 9 parts of hydrogen peroxide, 55 parts of water. The preparation method of rare earth modified vermiculite is as follows: sinter the vermiculite at 345°C for 1.5h, then add a lanthanum ion aqueous solution with a concentration of 0.38M, use lye to adjust the pH to 11, stir for 40min, centrifuge, and dry the filter residue in Calcined at 480°C for 4.5 hours.

[0025] The preparation method of described domestic sewage treatment agent is:

[0026] (1) pretreat bentonite and attapulgite by 350°C high-temperature roasting for 30 minutes;

[0027] (2) Dissolving the ferric chloride hydrate and aluminum chloride hexahydrate of the formula quantity in the...

Embodiment 2

[0032] A domestic sewage treatment agent, comprising the following raw materials in parts by weight: 30 parts of rare earth modified vermiculite, 20 parts of bentonite, 10 parts of attapulgite, 2 parts of iron salt, 5 parts of aluminum salt, 10 parts of polyaluminum chloride, 10 parts of iron sulfate, 8 parts of activated carbon, 5 parts of hydrogen peroxide, and 50 parts of water. The preparation method of rare earth modified vermiculite is as follows: sinter the vermiculite at 345°C for 1.5h, then add a lanthanum ion aqueous solution with a concentration of 0.38M, use lye to adjust the pH to 11, stir for 40min, centrifuge, and dry the filter residue in Calcined at 480°C for 4.5 hours.

[0033] The preparation method of described domestic sewage treatment agent is:

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

[0035] (2) dissolving the ferric chloride hydrate and aluminum chloride hexahydrate of formula quantity ...

Embodiment 3

[0040] A domestic sewage treatment agent, comprising the following raw materials in parts by weight: 50 parts of rare earth modified vermiculite, 40 parts of bentonite, 20 parts of attapulgite, 6 parts of iron salt, 10 parts of aluminum salt, 20 parts of polyaluminum chloride, 20 parts of iron sulfate, 16 parts of activated carbon, 10 parts of hydrogen peroxide, and 100 parts of water. The preparation method of rare earth modified vermiculite is as follows: sinter the vermiculite at 345°C for 1.5h, then add a lanthanum ion aqueous solution with a concentration of 0.38M, use lye to adjust the pH to 11, stir for 40min, centrifuge, and dry the filter residue in Calcined at 480°C for 4.5 hours.

[0041] The preparation method of described domestic sewage treatment agent is:

[0042] (1) Bentonite and attapulgite were pretreated by 380°C high-temperature roasting for 20 minutes;

[0043] (2) Dissolving the ferric chloride hydrate and aluminum chloride hexahydrate of the formula q...

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Abstract

The invention provides a domestic sewage treatment agent which comprises the following raw materials in parts by weight: 30-50 parts of rare-earth modified vermiculite, 20-40 parts of bentonite, 10-20parts of attapulgite, 2-6 parts of ferric salt, 5-10 parts of aluminum salt, 10-20 parts of aluminum polychloride, 10-20 parts of polyferric sulfate, 8-16 parts of activated carbon, 5-10 parts of hydrogen peroxide and 50-100 parts of water. The domestic sewage treatment agent provided by the invention can achieve a high removal rate on total nitrogen, total phosphorus, ammonia nitrogen, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand) and SS in water in a short time, does not cause secondary pollution, and has the functions of disinfection, bacterium inhibition and flocculation.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to 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 method is expensive, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/52C02F1/72C02F101/16C02F101/30
CPCC02F1/281C02F1/5236C02F1/722C02F1/725C02F2101/16C02F2101/30
Inventor 不公告发明人
Owner WUHU WANJIANG INTPROP OPERATION CENT CO LTD
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