Treatment process for high-concentration wastewater

Abstract

The invention discloses a treatment process for high-concentration wastewater. The treatment process includes that high-concentration wastewater enters a first middle tank after flocculation reactionand press filtering; liquid in the first middle tank enters a second middle tank after secondary flocculation reaction; liquid in the second middle tank is pumped into a MBR treating tank for being treated and then enters a third middle tank; liquid in the third middle tank is pumped into a triple-effect evaporator for evaporation and concentration, and condensate enters a condensate water tank; liquid in the condensate water tank is pumped into an activated carbon filter for adsorption filtering; outgoing water of the activated carbon filter enters a discharging tank after being filtered andadsorbed through a RO membrane and a mixed bed; qualified outgoing water of the discharging tank is discharged, and unqualified outgoing water of the discharging tank is returned to the condensate water tank for further treatment to enable final water to reach standards and to be discharged. By the treatment process, reutilization of the wastewater can be improved, and wastewater discharging is reduced; pressure of enterprises on treating high-concentration wastewater is lowered, and the objective of efficiently and economically treating the high-concentration wastewater is achieved.

Description

technical field [0001] The invention relates to a treatment process for high-concentration wastewater. Background technique [0002] At present, most of the high-concentration wastewater discharged by my country's industries adopts the mode of outsourcing treatment. With the country's requirements for energy saving and emission reduction, as well as the increasing cost of outsourcing, more and more enterprises are eager to solve this problem. The treatment of high-concentration organic wastewater has also become an important factor that determines the competitiveness of enterprises and even the survival of enterprises. [0003] Due to the high concentration of pollutants and complex water quality components, high-concentration wastewater has a large degree of pollution to the environmental water body, and the treatment is difficult, which is a recognized problem in wastewater treatment. Therefore, how to efficiently and economically treat high-concentration organic wastewa...

AI Technical Summary

Problems solved by technology

[0003] Due to the high concentration of pollutants and complex water quality components, high-concentration wastewater has a large degree of pollution to the environmental water body, and the treatment is difficult, which is a recognized problem in wastewater treatment.