Method for treating high-salinity high-organic-matter industrial waste water

A technology of industrial waste water and treatment method, applied in the field of chemical industry, to achieve the effects of increasing green area, low operating cost, and reducing salt and organic matter content

Inactive Publication Date: 2017-01-04
潘纪鸿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The existing high-salt and high-organic industrial wastewater treatment methods and systems cannot economically and effectively treat large quantities of sewage discharged from the chemical industry

Method used

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  • Method for treating high-salinity high-organic-matter industrial waste water
  • Method for treating high-salinity high-organic-matter industrial waste water

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A treatment method for high-salt and high-organic-matter industrial wastewater, comprising the following steps:

[0045] A. Pretreatment

[0046] First, high-salt and high-organic industrial wastewater flows through multiple grids with gradually reduced grid gaps, and then is discharged into the sedimentation tank, and 10ppm coagulant (ferric chloride) is added for chemical treatment for 20 minutes, and then solid-liquid separation is carried out to remove Solid matter, that is, the supernatant of industrial wastewater;

[0047] B. Biological purification after dilution

[0048] First add salt-free water to the supernatant of the industrial wastewater described in step A for dilution, and then introduce it into the artificial wetland planted with purification plants for biological purification, and the artificial wetland includes the first biological purification zone, The second biological purification zone and the third biological purification zone, wherein the wate...

Embodiment 2

[0054] A treatment method for high-salt and high-organic-matter industrial wastewater, comprising the following steps:

[0055] A. Pretreatment

[0056] First, high-salt and high-organic industrial wastewater flows through multiple grids with gradually reduced grid gaps, and then discharged into the sedimentation tank, and 45ppm coagulant (ferric chloride) is added for chemical treatment for 30 minutes, and then solid-liquid separation is carried out to remove Solid matter, that is, the supernatant of industrial wastewater;

[0057] B. Biological purification after dilution

[0058] First add salt-free water to the supernatant of the industrial wastewater described in step A for dilution, and then introduce it into the artificial wetland planted with purification plants for biological purification, and the artificial wetland includes the first biological purification zone, The second biological purification zone and the third biological purification zone, wherein the water d...

Embodiment 3

[0064] A treatment method for high-salt and high-organic-matter industrial wastewater, comprising the following steps:

[0065] A. Pretreatment

[0066] First, high-salt and high-organic industrial wastewater flows through multiple grids with gradually reduced grid gaps, and then discharged into the sedimentation tank, adding 80ppm coagulant (ferric chloride) for chemical treatment for 20-40min, and then solid-liquid separation , remove the solid matter, promptly obtain the supernatant of industrial waste water;

[0067] B. Biological purification after dilution

[0068] First add salt-free water to the supernatant of the industrial wastewater described in step A for dilution, and then introduce it into the artificial wetland planted with purification plants for biological purification, and the artificial wetland includes the first biological purification zone, The second biological purification zone and the third biological purification zone, wherein the water depth of the ...

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Abstract

The invention relates to a method for treating high-salinity high-organic-matter industrial waste water. The method comprises the following steps that A, the high-salinity high-organic-matter industrial waste water flows through multiple gratings, a coagulant is added for treatment, and then solid-liquid separation is carried out; B, the solution is introduced into a constructed wetland for biological purification after being diluted; C, a reducing agent is added after ozone is used for removing peculiar smells, activated carbon is adopted for filtering, and then settling treatment is carried out; D, security filtering is carried out firstly, then micro-filtration membrane filtering is carried out, ultrafiltration membrane filtering is carried out, and drainage water meeting the environmental protection standard is obtained. Compared with the prior art, the biological cleaning technology and the activated carbon and membrane filtering technology are adopted, the method is easy to operate, low in operating cost, environmentally friendly and free of pollution, a large amount of industrial waste water can be treated economically and efficiently, inorganic salt and organic matter in the industrial waste water can be effectively removed, the salt content of the drained water can be reduced, suspended solids, metallic oxide, colloid, bacteria and the like can be effectively removed, the waste water treatment effect is better, the drained water completely meets the environmental protection drainage standard, and the greening area can be increased.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a method for treating industrial wastewater. Background technique [0002] In recent years, with the rapid development of my country's industry, some chemical, pharmaceutical, papermaking, food, fermentation and other industries have discharged a large amount of high-soluble sulfate organic wastewater into natural ecological water bodies. Excessive sulfate in the water body can not only make the water body smelly and deteriorate the water quality, but also strongly restrict the growth of aquatic organisms and plants, and cause the salinization of the surrounding soil. In short, the pollution of the water body and soil caused by it is becoming increasingly serious and serious. aroused widespread concern. [0003] Industrial wastewater refers to the wastewater, sewage and waste liquid produced in the process of industrial production, which contains industrial production materials,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30C02F101/10C02F3/32C02F1/78C02F1/70C02F1/52C02F1/44C02F1/28
CPCC02F1/001C02F1/283C02F1/444C02F1/52C02F1/70C02F1/78C02F3/327C02F9/00C02F2001/007C02F2101/101C02F2101/30C02F2301/08C02F2303/02C02F2303/04C02F2305/023Y02W10/10
Inventor 潘纪鸿
Owner 潘纪鸿
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