Deep-treatment and reusing system and method for industrial standard-meeting externally-discharged wastewater

A technology for advanced treatment and waste water, applied in the field of water treatment, can solve the problems of high cost, poor pollutant removal effect, low water production rate, etc., and achieve high water production rate, low energy consumption and equipment investment, and easy operation Effect

Active Publication Date: 2015-02-11
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high cost, low water production rate and poor pollutant removal effect existing in the advanced treatment and reuse technology of industrial standard discharge wastewater, and provide a kind of advanced treatment and reuse of industrial standard discharge wastewater The system and method, through the multi-process coupling of ultrafiltration-nanofiltration-electrosorption-reverse osmosis-coagulation / electrocoagulation / enzyme electropolymerization-electrocoagulation, remove various pollutants in wastewater and realize wastewater reuse

Method used

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  • Deep-treatment and reusing system and method for industrial standard-meeting externally-discharged wastewater
  • Deep-treatment and reusing system and method for industrial standard-meeting externally-discharged wastewater

Examples

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Embodiment 1

[0034] Such as figure 1 As shown, the advanced treatment and reuse system of industrial waste water up to standard in this embodiment includes: ultrafiltration device A, coagulation device B, nanofiltration device C, electrosorption desalination device D and coagulation / electrocoagulation / Enzyme electropolymerization-electrocoagulation device F;

[0035] The ultrafiltration fresh water outlet of the ultrafiltration device A is connected to the inlet of the nanofiltration device C and the electric adsorption desalination device D through pipelines in turn; The outlet of the adsorption concentrated water is connected with the inlet of the coagulation / electrocoagulation / enzyme electropolymerization-electrocoagulation device F; the outlet of the ultrafiltration concentrated water of the ultrafiltration device A is connected with the inlet of the coagulation device B; The water outlet of the coagulation device B is connected with the waste water inlet of the ultrafiltration devic...

Embodiment 2

[0037]Compared with Example 1, the coagulation / electrocoagulation / enzyme electropolymerization-electrocoagulation device F is an electrocoagulation device, and the rest of the structure is the same as that of Example 1.

Embodiment 3

[0039] Compared with Example 1, the coagulation / electrocoagulation / enzyme electropolymerization-electrocoagulation device F is an enzyme electropolymerization-electrocoagulation device, and the rest of the structure is the same as that of Example 1.

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Abstract

The invention relates to a deep-treatment and reusing system and method for industrial standard-meeting externally-discharged wastewater, and belongs to the technical field of water treatment. The system comprises an ultrafiltration device, a nanofiltration device, an electroadsorption device and a coagulation/electrocoagulation/enzyme electropolymerization-electrocoagulation device; an ultrafiltration fresh water outlet is successively communicated with the ultrafiltration device and the electroadsorption device; concentrated water of the ultrafiltration device and concentrated water of the nanofiltration device are communicated with the coagulation/electrocoagulation/enzyme electropolymerization-electrocoagulation device. The system can further include a reverse osmosis device; a water inlet of the reverse osmosis device is communicated with a water outlet of the electroadsorption desalting device, and a concentrated water outlet of the reverse osmosis device is communicated with an inlet of the coagulation/electrocoagulation/enzyme electropolymerization-electrocoagulation device. The industrial standard-meeting externally-discharged wastewater can be used for water supplementary in industrial circulating water and circulating cooling water after being treated by the system, and can also be further used for boiler water feeding after reverse osmosis treatment. The system removes various pollutants in the wastewater to a largest extent, and lower the cost of treatment.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a system and a method for intensively treating and reusing industrial wastewater discharged up to the standard by adopting ultrafiltration-nanofiltration-electrosorption-reverse osmosis coupling. Background technique [0002] With the acceleration of industrialization, my country has become a big industrial country, and a large amount of wastewater generated in the process of industrial production poses a potential threat to the environment and human health. Wastewater discharged up to standard after biochemical secondary treatment, especially wastewater from coking, chemical fiber, papermaking, printing and dyeing industries, still contains some suspended solids, organic matter and inorganic salts, and further desalination and organic matter removal are required to realize wastewater reuse. Therefore, the development of advanced treatment and wastewater reuse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06
CPCC02F1/442C02F1/444C02F1/463C02F1/469C02F1/5236C02F1/56C02F3/005C02F3/342C02F9/00C02F2301/08
Inventor 曹宏斌李海涛赵赫李玉平张懿
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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