Coal-fired power plant concentrated brine treatment system and method

CN120025036BActive Publication Date: 2026-07-14GUONENG LANGXINMING NANJING ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUONENG LANGXINMING NANJING ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-02-28
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional coal-fired power plant zero-discharge treatment processes for concentrated brine suffer from problems such as high reagent dosage, difficulty in membrane concentrate treatment, and high operation and maintenance costs of wastewater treatment systems.

Method used

The system consists of an equalization tank, a pretreatment device, a catalytic oxidation device, a reverse osmosis device, a biological desalination reactor, an ultraviolet sterilization device, and a spray drying device. It combines halophilic microorganisms and intermittent light to carry out desalination through reverse osmosis coupling, control the enrichment of organic matter, establish a bacterial-algae symbiotic system, stabilize the biological desalination system, and achieve sludge atomization drying.

Benefits of technology

It improves the system's recovery rate and operational reliability, reduces operating costs, enhances the system's economy and adaptability, and avoids the generation of secondary solid waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a coal-fired power plant concentrated brine treatment system and method, and belongs to the technical field of wastewater treatment.In the application, the water quality of the effluent of an adjusting tank and the influent of a reverse osmosis device are compared, and corresponding treatment is carried out according to condition judgment; salt-tolerant microorganisms are used to desalt concentrated brine, and the dilute brine after desalination is returned to a pretreatment raw water tank for re-mixing treatment; under specific conditions, the RO influent is subjected to catalytic oxidation treatment, the enrichment of organic matters in the system is controlled, the pollution of organic matters to the RO membrane is alleviated, and the stability of system operation is improved; a bacteria-algae symbiotic system is established, the biological desalination system is stabilized, and the impact resistance and adaptability are improved.The sludge discharged in the biological desalination is atomized and dried, and no secondary solid waste is generated.
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