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Extensive wastewater treatment capture agent

A sewage treatment and capture agent technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of high water content in settled sludge, single sewage treatment, strong limitations, etc., and achieve no secondary pollution, application process Simple, marketable effect

Inactive Publication Date: 2014-10-01
NANCHANG GERUN ENVIRONMENTAL PROTECTION SCI &TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the coagulants widely used are single-component, and the treatment of sewage is single, with strong limitations, and the sedimentation sludge has a high water content and is not easy to filter. As time goes by, the pollutants in the sludge may dissolve again, resulting in Secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 1% sodium carboxymethyl starch, 3% ferric chloride, 25% calcium carbonate, 25% calcium sulfate, 25% activated carbon, 8% fly ash, 13% sodium carbonate, mix evenly and discharge.

[0022] Weigh 10 grams of capture agent into 10 liters of printing and dyeing wastewater, settle for 5 minutes, stir for 1 minute, settle for 5 minutes again, and the printing and dyeing wastewater becomes clear and transparent. As shown in Table 1: COD is reduced by 95.61%, BOD is reduced by 95.28%, and SS is reduced by 99.50%; (such as figure 1 As shown, the left picture is before the printing and dyeing wastewater treatment, and the right picture is after the printing and dyeing wastewater is added with the capture agent of the present invention).

[0023]

[0024] Table 1

Embodiment 2

[0026] Weigh 1% chitosan, 2% polydimethyldiallyl ammonium chloride, 5% potassium aluminum sulfate, 35% diatomaceous earth, 30% calcium carbonate, 8% volcanic ash, 19% sodium carbonate, mix well Stir and discharge.

[0027] Weigh 10 grams of capture agent into 10 liters of printing and dyeing wastewater, settle for 5 minutes, stir for 1 minute, settle for 5 minutes again, and the printing and dyeing wastewater becomes clear and transparent. As shown in Table 2: COD is reduced by 91.43%, BOD is reduced by 95.76%, and SS is reduced by 99.38%; (such as figure 2 As shown, the left picture is before the printing and dyeing wastewater treatment, and the right picture is after the printing and dyeing wastewater is added with the capture agent of the present invention).

[0028]

[0029] Table 2

Embodiment 3

[0031] Weigh 2% polyacrylamide, 1% polydimethyldiallyl ammonium chloride, 9% aluminum sulfate, 25% diatomaceous earth, 20% calcium carbonate, 25% calcium sulfate, 3% blast furnace slag, sodium carbonate 15%, mix evenly, and discharge.

[0032] Weigh 10 grams of capture agent into 10 liters of printing and dyeing wastewater, settle for 5 minutes, stir for 1 minute, settle for 5 minutes again, and the printing and dyeing wastewater becomes clear and transparent. As shown in Table 3: COD is reduced by 93.90%, BOD is reduced by 93.22%, and SS is reduced by 99.40%; (such as image 3 As shown, the left picture is before the printing and dyeing wastewater treatment, and the right picture is after the printing and dyeing wastewater is added with the capture agent of the present invention).

[0033]

[0034]

[0035] table 3

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Abstract

The invention discloses an extensive wastewater treatment capture agent. The capture agent is prepared from an organic coagulant, an inorganic coagulant, a coagulant aid, a binder and a modifier. The colloid charge balance in sewage is broken by ionization of the capture agent in water, and pollutants are subjected to physical and chemical adsorption and subjected to consolidation settlement, so as to achieve the target of reducing chemical oxygen demand (COD), biochemical oxygen demand (BOD) and storativity (SS). The extensive wastewater treatment capture agent is simple in application process, quick to take effect, wide in adaptability and broad in market prospect.

Description

technical field [0001] The invention relates to a powder-type capture agent widely used in sewage treatment in various fields, which belongs to environment-friendly water treatment agents. technical background [0002] From a global perspective, the contradictions between water resources and the water environment are becoming more and more prominent. China has a large population base and lacks water resources. The per capita water volume is only 2630 m 3 , which is 1 / 4 of the world's per capita water volume. In recent years, with the rapid development of my country's economy, the demand for water has increased rapidly. In order to ensure the sustainable use of water resources and solve the problem of water environmental pollution, a lot of work has been done in water treatment at home and abroad, and a variety of water treatment processes have been developed, such as coagulation precipitation, biochemical method, ion exchange method, adsorption method, chemical oxidation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56
Inventor 李海乐
Owner NANCHANG GERUN ENVIRONMENTAL PROTECTION SCI &TECH CO LTD
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