Circulating water and blow-down water recycling and zero-emission treatment method

A treatment method and sewage discharge technology, applied in water/sewage treatment, multi-stage water/sewage treatment, electrochemical water/sewage treatment, etc., can solve the problems of incomplete sewage treatment, unsatisfactory effect, and low sewage efficiency , to achieve the effect of simple, efficient and environmentally friendly treatment process, easy installation and disassembly, and increased filtration area

Pending Publication Date: 2022-05-13
CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the efficiency of using the above-mentioned treatment process to treat sewage is too low, and the effect is not ideal, and it cannot achieve complete treatment of sewage, zero discharge, and no pollution

Method used

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  • Circulating water and blow-down water recycling and zero-emission treatment method
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  • Circulating water and blow-down water recycling and zero-emission treatment method

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, in t...

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PUM

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Abstract

The invention discloses a circulating water sewage reuse and zero discharge treatment method, which mainly comprises three functional treatment units, namely a pretreatment unit, a desalting unit and a zero discharge unit, sewage is primarily treated by the pretreatment unit, sludge in the sewage is separated by operations such as flocculation, and the sewage is discharged by the zero discharge unit. Salt in the sewage is removed through the desalting unit, and the sewage is finally treated and recycled through the zero discharge unit. According to the treatment method disclosed by the invention, the treatment process is simple, efficient and environment-friendly, no pollutant of a sludge environment is generated after the sewage is treated, and the pollutant in the sewage can be recycled after being recycled, so that the purposes of economy and environment friendliness are achieved while zero emission is realized.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a recycling and zero-discharge treatment method for circulating water and sewage. Background technique [0002] Evaporation loss, wind blowing loss and sewage loss in the ring water cooling system account for about 70% to 80% of the production water consumption of the whole plant. Increasing the concentration rate of circulating cooling water and recycling of circulating water and sewage water are the key to saving water in current circulating cooling thermal power plants. And the main way to reduce sewage discharge. The conductivity of circulating water sewage is 500-3000μs / cm, and the salt content is about 275-2250mg / L. Due to the increase of water standards and environmental protection pressure, the concentration ratio of circulating water will increase to the upper limit. Rapid treatment of circulating water and sewage may cause the risk of fouling of equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F1/44C02F1/46C02F5/00C02F103/02
CPCC02F9/00C02F1/4602C02F1/444C02F2103/023C02F1/001C02F1/441C02F1/4693C02F11/127C02F2301/08C02F1/42C02F2001/5218C02F1/041C02F1/50C02F1/5236C02F2001/425C02F11/12
Inventor 赵晓阳程里峰李玉楠罗小宇赵也彭巧玲
Owner CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH
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