Industrial strong brine zero discharge treatment system and method

The technology of a treatment system and a treatment method, which is applied in the field of industrial concentrated brine zero discharge treatment system, can solve the problems of increasing the treatment capacity of an evaporative crystallization unit, high operation cost, and many treatment units, and achieves low operation cost, stable process, and treatment cost. low effect
CN114716083APending Publication Date: 2022-07-08TANGSHAN IRON & STEEL GROUP +2
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TANGSHAN IRON & STEEL GROUP
Publication Date
2022-07-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to an industrial strong brine zero discharge treatment system which comprises an industrial strong brine tank, an electrodialysis device, a concentrated solution tank and an evaporative crystallization unit which are sequentially connected, an electrodialysis produced water outlet is connected with an electrodialysis produced water tank, and the electrodialysis produced water tank is sequentially connected with a first pressure pump, an acid-resistant nanofiltration membrane, a second pressure pump and a reverse osmosis membrane. And finally, the concentrated water of the reverse osmosis membrane is returned to the electrodialysis water producing tank from a water outlet, and the concentrated water of the acid-resistant nanofiltration membrane is returned to the industrial concentrated brine tank. The invention further relates to a treatment method using the treatment system. According to the invention, the industrial strong brine is concentrated by using a simple and low-cost method, the final produced water is recycled, and the rest of super strong brine is evaporated and crystallized, so that the purpose of zero emission of strong brine is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of industrial concentrated brine treatment, and specifically relates to an industrial concentrated brine zero-discharge treatment system and method for concentrating industrial concentrated brine, recycling desalinated water, and evaporating and crystallizing the remaining ultra-concentrated brine to achieve the purpose of zero-discharging concentrated brine. Background technique

[0002] In industrial production, many companies will use wastewater recycling technology, but the recycling of high-salt and high-hardness wastewater has always been a problem. The traditional process uses dual-alkali method to reduce the hardness, and then uses resin to reduce the hardness. Finally, the membrane method is used for desalination to achieve reuse of water. Standard, acid-base regeneration liquid and reverse osmosis concentrated brine are evaporated and crystallized to achieve zero discharge of waste water.

[0003] The tradit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More