High salt water zero discharge treatment system

Abstract

The invention discloses a high salt water zero discharge treatment system. The high salt water zero discharge treatment system includes a forward osmosis concentration system and a draw solution regeneration system. The forward osmosis concentration system includes a forward osmosis membrane component, which is used for receiving a concentrated draw solution of the draw solution regeneration system and a to-be-treated solution, and performing osmosis treatment to obtain a diluted draw solution and a concentrated solution. The draw solution regeneration system includes a high pressure reverse osmosis system, the forward osmosis membrane component is communicated with the high pressure reverse osmosis membrane component, the high pressure reverse osmosis system is used for providing the concentrated draw solution to the forward osmosis membrane component and receiving the diluted draw solution in the forward osmosis membrane component, the draw solution regeneration system also includes a sea water desalination system, which is assembled in the high pressure reverse osmosis system, and is used for treating the clear solution in the high pressure reverse osmosis system to obtain concentrated water and a final product and returning the concentrated water to the high pressure reverse osmosis system.

Description

technical field [0001] The invention relates to the field of high-salt water treatment and the like, in particular to a high-salt water zero-discharge treatment system. Background technique [0002] High salt water generally refers to natural water or industrial wastewater with high salinity, high COD, high hardness, and may even smell of heavy metals, such as groundwater, lakes, river. Due to the low annual precipitation and weak water circulation system in these areas, most rivers have been dry for a long time, resulting in very high salt content in groundwater, lakes, etc., which is called "brackish water" and cannot be drunk. High salt water also exists in China's coastal areas, such as sea estuaries, estuaries and other shallow sea areas. It is a classic sea salt water and has generally been seriously polluted. The other type of high-salt water is the concentrated waste water discharged from industrial and mining enterprises after the implementation of waste water rec...

AI Technical Summary

Problems solved by technology

The other type of high-salt water is concentrated waste water discharged from industrial and mining enterprises after the implementation of waste water recycling. Once these high-salt waste water is discharged outside, it will cause great pollution to the environment.

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