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A method for advanced treatment of high-concentration organic wastewater

A technology for organic wastewater and advanced treatment, applied in water/sewage treatment, multi-stage water/sewage treatment, oxidized water/sewage treatment, etc., which can solve the problem that the operation results are easily affected by changes in water quality and water quantity, and the adaptability of biological treatment technology Low cost, occupied land and other problems, to achieve the effect of easy recycling and separation, preventing pollution, and easy recycling

Active Publication Date: 2020-06-23
江苏中丽新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic matter load at the head end of the aeration tank is high, and the oxygen consumption rate is high. In order to avoid the formation of anaerobic state due to lack of oxygen, the concentration of organic matter in the influent should not be too high. higher cost
Biological treatment technology has low adaptability to changes in influent water quality and water quantity, and its operation results are easily affected by changes in water quality and water quantity
[0006] In view of the complexity and refractory nature of high-concentration organic wastewater components, there are certain limitations in using a single sewage treatment technology to treat high-concentration organic wastewater. At the same time, high-concentration organic wastewater is often accompanied by a large amount of inorganic salts and heavy metals. Inhibitors and toxic agents can also cause substandard water quality

Method used

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  • A method for advanced treatment of high-concentration organic wastewater
  • A method for advanced treatment of high-concentration organic wastewater
  • A method for advanced treatment of high-concentration organic wastewater

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Effect test

Embodiment 1

[0035] A method for advanced treatment of high-concentration organic wastewater, the method comprising the following steps:

[0036] Step 1. Coagulation and sedimentation: High-concentration organic wastewater enters the coagulation sedimentation tank through a mechanical grid, and 0.2 kg of chitosan-acrylamide graft copolymer flocculant is added to the water inlet for each ton of sewage;

[0037] Step 2, UV-ozone-ultrasonic joint reaction section: UVU low-pressure ultraviolet mercury lamp ( figure 1 4) After the preheating is completed, the effluent of the coagulation sedimentation tank is passed into the ultraviolet-ozone-ultrasonic combined reactor ( figure 1 shown in ), start the ultrasonic array ( figure 1 Shown in 3), reflux treatment for 1h;

[0038] Step 3, three-dimensional electrode electrolysis treatment: the effluent of the combined reactor is passed into the three-dimensional electrode electrolysis reactor ( figure 2 7), using polypyrrole-modified platinum oxi...

Embodiment 2

[0046] A method for advanced treatment of high-concentration organic wastewater, the method comprising the following steps:

[0047] Step 1. Coagulation and sedimentation: High-concentration organic wastewater enters the coagulation sedimentation tank through a mechanical grid, and 0.4 kg of chitosan-acrylamide graft copolymer flocculant is added to the water inlet for each ton of sewage;

[0048] Step 2, UV-ozone-ultrasonic joint reaction section: UVU low-pressure ultraviolet mercury lamp ( figure 1 4) After the preheating is completed, the effluent of the coagulation sedimentation tank is passed into the ultraviolet-ozone-ultrasonic combined reactor ( figure 1 shown in ), start the ultrasonic array ( figure 1 shown in 3), reflux treatment for 1.5h;

[0049] Step 3, three-dimensional electrode electrolysis treatment: the effluent of the combined reactor is passed into the three-dimensional electrode electrolysis reactor ( figure 2 7), using polypyrrole-modified lead oxide...

Embodiment 3

[0057] A method for advanced treatment of high-concentration organic wastewater, the method comprising the following steps:

[0058] Step 1. Coagulation and sedimentation: High-concentration organic wastewater enters the coagulation sedimentation tank through a mechanical grid, and 0.8 kg of chitosan-acrylamide graft copolymer flocculant is added to the water inlet for each ton of sewage;

[0059] Step 2, UV-ozone-ultrasonic joint reaction section: UVU low-pressure ultraviolet mercury lamp ( figure 1 4) After the preheating is completed, the effluent of the coagulation sedimentation tank is passed into the ultraviolet-ozone-ultrasonic combined reactor ( figure 1 shown in ), start the ultrasonic array ( figure 1 Shown in 3), reflux treatment 2h;

[0060] Step 3, three-dimensional electrode electrolysis treatment: the effluent of the combined reactor is passed into the three-dimensional electrode electrolysis reactor ( figure 2 7), using polypyrrole-modified iridium oxide-co...

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Abstract

The invention discloses a deep treatment method of high-concentration organic wastewater. The method comprises the following steps: step one, coagulating and precipitating; step two, carrying out ultraviolet-ozone-ultrasound combined reaction stage; step three, carrying out electrolysis treatment through three dimension electrodes; step four, recycling heavy metals; and step five, carrying out ultrafiltration-electrodialysis coupled desalinization. The deep treatment method of high-concentration organic wastewater is free of biological treatment processes, free of pretreatment, high in desalinization rate, simple to operate, high in efficiency, free of secondary pollution and low in cost, and is capable of completely removing organic matters, recycling the heavy metals and recycling the high-concentration organic wastewater.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an advanced treatment method for high-concentration organic wastewater. Background technique [0002] Currently, water pollution is one of the urgent problems in China. With the continuous increase of industrial production, the discharge of industrial sewage is becoming more and more serious. A large amount of industrial sewage is directly discharged into the river, which endangers the aquatic biological system and seriously affects human life. Chemical industry, printing and dyeing, papermaking, oil field, food processing and garbage seepage are mostly high-concentration organic wastewater, which is difficult to treat. [0003] High-concentration organic wastewater generally has the characteristics of high chroma, which not only causes discomfort to human senses, but also prevents sunlight from entering the water body when it is discharged into the water body, caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08
CPCC02F1/32C02F1/444C02F1/46109C02F1/4693C02F1/48C02F1/56C02F1/78C02F9/00C02F2001/46138
Inventor 许欠欠
Owner 江苏中丽新材料有限公司
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