A membrane concentrate liquid treatment system and its production process

Abstract

The invention discloses a membrane concentrate liquid treatment system, which comprises a mixing tank and a stirring shaft, a lifting device is fixed inside the stirring shaft, both ends of the lifting device are arranged outside the stirring shaft, and the upper end of the lifting device is connected with A feeding device, the outlet of the feeding device is connected to the mixing device, and the other side of the mixing device is connected to a liquid storage tank; the lower end of the lifting device is placed at the bottom of the mixing tank for extracting metal impurities in the mixing tank. The mixing device is used for mixing and reacting metal impurities and dilute sulfuric acid to generate inorganic salts and injecting the inorganic salts into the mixing pool. The device can greatly save resources and improve the treatment efficiency of the concentrated solution.

Description

Membrane concentrate treatment system and production process thereof technical field The present invention relates to the technical field of waste liquid treatment, especially a kind of membrane concentration treatment system and production technique thereof. Background technique Membrane treatment technology is mainly used in the separation and treatment of sewage, and sewage is separated into water and waste after membrane treatment. The waste is then removed by evaporation and other methods to remove the remaining water, and finally solid waste is formed. In modern production and life, industrial waste water, especially the cooling liquid waste water produced in the metal processing industry, passes through the Often contains a large amount of ferrous metals and organic matter, the waste generated by such wastewater after membrane treatment forms a slurry-like concentration. Condensation liquid, usually the treatment method of such concentrated liquid is coagulati...

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Problems solved by technology

[0004] The existing coagulation treatment method usually needs to add independently prepared iron salt, which is costly, and the hydrolysis of salt coagulant in the coagulation process is an endothermic reaction, and it is difficult to hydrolyze when the water temperature is low, which affects the formation of flocs. , thus affecting the effect of subsequent precipitation treatment

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