Wastewater demineralization treatment system

Abstract

The invention provides a wastewater demineralization treatment system which comprises a wastewater collecting tank, a regulating treatment tank, a multi-medium filter, an MBR membrane treatment system, a security filter and a reverse osmosis demineralizer all arranged in sequence in a wastewater treatment direction. An outlet end of the wastewater collecting tank is connected with the regulating treatment tank; an outlet end of the regulating treatment tank is connected with the multi-medium filter; an outlet end of the multi-medium filter is connected with the MBR membrane treatment system; aconcentrated water outlet end of the MBR membrane treatment system is connected with the regulating treatment tank, allowing concentrated liquid to be returned to the regulating treatment tank afterbeing subjected to evaporative demineralization treatment; an effluent outlet end of the MBR membrane treatment system is connected with the security filter; an outlet end of the security filter is connected with the reverse osmosis desalination device; and a concentrated water outlet end of the reverse osmosis desalination device is connected with the MBR membrane treatment system. The wastewaterdemineralization treatment system is characterized by simple equipment operation and low operation cost, and characterized in that the effluent has a quality that can meet the requirements of different grades of water, and a high desalination rate that can meet the requirements of wastewater treatment.

Description

[0001] 【Technical Field】 [0002] The invention relates to the technical field of chemical sewage treatment systems, in particular to a wastewater desalination treatment system. [0003] 【Background technique】 [0004] At present, for wastewater discharge, industrial wastewater discharge is very harmful. If untreated wastewater is discharged into rivers, ponds or seeps underground, it will not only harm the environment, but also pollute drinking water sources. In the prior art, mature technologies and equipment such as RO reverse osmosis and EDI electric desalination can produce high-quality and efficient production water, but the water production rate of the above-mentioned water production process is about 75%, that is, : In the process of producing high-quality water, the other impurities in the water are separated by membranes and concentrated in 25% concentrated brine. These concentrated brines are usually difficult to reuse, so they have to be discharged into water bodies or d...

AI Technical Summary

Problems solved by technology

And these brines are usually difficult to reuse, so they have to be discharged into water bodies or deep wells

The harmfulness of such a concentrated water treatment mode is gradually emerging, such as causing land salinization and water biological reduction, etc.

Images