Thermal power industry water resource high efficiency utilization integrated method

Abstract

The invention discloses a thermal power industry water resource high efficiency utilization integrated method. The thermal power industry water resource high efficiency utilization integrated method comprises following steps: 1, circulation water pretreatment, wherein a softening medicine is added into a flocculation tank for pretreatment; 2, tubular type microfiltration membrane filtration, wherein water treated in the step 1 is introduced into a tubular type microfiltration membrane; 3, reverse osmosis filtering, wherein water from the step 2 is introduced into a reverse osmosis system; and4, desulphurization water pretreatment, wherein desulphurization system discharged water is subjected to pretreatment, and is introduced into an evaporation crystallization equipment. The thermal power industry circulation water and desulphurization waste water processing method is capable of realizing water resource recycling, and sewage zero discharge, and increasing water resource utilization efficiency greatly at the same time.

Description

technical field [0001] The invention relates to the technical field of utilization of thermal power water resources, in particular to an integrated method for efficient utilization of water resources in thermal power industry. Background technique [0002] The power generation of thermal power units in my country accounts for more than 80% of the total power generation, and thermal power generation is one of the industries with the largest water intake in my country. Whether water-saving work is carried out directly affects the production, operation and sustainable development of power companies. From the water consumption of the thermal power industry and the national water consumption in recent years, it can be seen that with the increase in thermal power installed capacity and power generation, the water consumption of thermal power plants in the country has increased, but the reuse rate of water is low, and the amount of sewage discharged outside is large, saving water. ...

AI Technical Summary

Problems solved by technology

[0006] 1) Cooling circulating water is the unit with the largest water consumption in power plants, accounting for more than 65% of the power plant's water consumption. The traditional treatment methods for circulating cooling water in power plants are side filtration and weak acid softening treatment. This method requires regular replenishment during operation. Dilute circulating cooling water with water, the water waste caused by this method is very serious;

[0007] 2) The water consumption of the desulfurization system in the thermal power industry is also relatively large, and most power plant desulfurization wastewater is discharged after simple treatment without further treatment and reuse facilities

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