Brine waste water processing reusing device and method

A salt-containing wastewater, pretreatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as pollution

Active Publication Date: 2014-08-27
安徽森诺膜技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Before treatment, the COD of saline wastewater is 60-150mg / L, and after treatment, the effluent COD is ≤3mg / L, and the removal rate reaches 95-98%. , The removal rate reaches 98%. It not only solves the pollution problem of saline wastewater, but also treats the effluent water better than the circulating water replenishment standard, and reuses the treated water in the circulating water system to achieve the purpose of water saving, and contributes to the enterprise's development guarantees

Method used

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  • Brine waste water processing reusing device and method
  • Brine waste water processing reusing device and method
  • Brine waste water processing reusing device and method

Examples

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Embodiment

[0032] Such as Figure 6 As shown, the 12240m2 reuse and evaporation water station supporting a large-scale salt chemical enterprise with an annual output of 600,000 tons of soda ash project 3 / D Saline wastewater treatment and reuse project.

[0033] 1. Treated water volume

[0034] In order to recycle water resources and reduce water waste, a saline wastewater treatment and reuse system is designed to recycle the treated production sewage, sewage from the circulating water system and other clean wastewater of the whole plant, etc. The normal amount of reclaimed water reuse is 358m 3 / h, up to 502m 3 / h, the system presses 510m 3 / h design, reuse 497m after final treatment 3 / h, waste salt transported abroad 3m 3 / h, mud discharge 10m 3 / h (use the sludge treatment system of the enterprise's original sewage treatment plant for treatment).

[0035] 2. Influent water quality

[0036] The water inflow of the reuse water system mainly includes: the treated wastewate...

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Abstract

The invention discloses a brine waste water processing reusing device and method. The structure of the device comprises a preprocessing system 1, an ultrafiltration processing system 2, a reverse osmosis processing system 3 and a negative pressure spray evaporation processing system 4. The device has the advantages that the device can be suitable for water draining, circulating water sewage draining, boiler sewage draining, demineralized water station resin regenerating water draining and the like of brine waste water primary treatment; organic pollutants and hardness in brine waste water are removed, and salinity is lowered; (3) the purposes of reusing and zero emission by efficient evaporating on thick water are achieved; (4) preprocessing, ultrafiltration and reverse osmosis are combined organically; (5) rolling type reverse osmosis and flat plate reverse osmosis are combined, and decrement is concentrated to the maximum degree; and (6) energy is saved, efficiency is high in low-temperature negative-pressure spray evaporation, and the purposes of reusing and zero emission are achieved.

Description

technical field [0001] The invention relates to a saline waste water treatment and reuse device and a method thereof, and belongs to the technical field of industrial waste water treatment. Background technique [0002] Domestic metallurgy, iron and steel, textile printing and dyeing, papermaking, salt chemical industry, petrochemical, coal chemical industry and other industries have developed rapidly. The circulating water sewage in the production process, the boiler sewage, the drainage of some production wastewater after treatment, the reverse osmosis concentrated water and ion in the desalination station Exchanging and regenerating acid-base neutralization and drainage constitute a large amount of saline waste water discharged, causing pollution to the surrounding water environment, wasting a lot of water resources, and restricting the development of enterprises. At present, under the environment of water resource shortage and national energy conservation and emission re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10
Inventor 刘福东张国平刘根廷刘天永
Owner 安徽森诺膜技术有限公司
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