Treatment equipment and treatment process for power plant desulfurization wastewater

Abstract

The invention provides treatment equipment and a treatment process for power plant desulfurization wastewater, and relates to the technical field of environmental protection. The treatment equipment for the power plant desulfurization wastewater comprises a pretreatment box; the left side of the pretreatment box is fixedly connected with a wastewater inlet pipe, and the side, away from the wastewater inlet pipe, of the pretreatment box is fixedly connected with a neutralization box, a precipitation box, a flocculation box and a clarification tank in sequence. A pH on-line monitoring device can accurately control the pH value in the neutralization box; a third pH tester confirms the pH value after treatment again; an adjusting device controls the concentration of lime slurry preparation; a third electric control valve and a fourth electric control valve control the direction of treated water; a first stirring device is more energy-saving compared with a traditional stirring mode through an arranged pulley assembly; through an arranged stirring plate and meshes in the stirring plate, a mixture solution is stirred more fully; and a second mud baffle and a baffle block are arranged on the lower wall of the inner side of the flocculation box, so that part of floccules are left in the flocculation box and serve as the core of the subsequent coagulation reaction.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to treatment equipment and a treatment process for power plant desulfurization wastewater. Background technique [0002] In recent years, with the increasing growth of the national economy, the demand for electricity has accelerated, and the number of coal-fired generating units used as the main power supply has increased year by year, and the amount of coal burned has also increased greatly. The regional and global environmental problems of coal-fired are becoming more and more serious The more prominent, so all thermal power plants are put into the flue gas desulfurization system, through flue gas desulfurization technology to control the emission of sulfur oxides. Since the desulfurization process uses wet desulfurization, a large amount of waste water is produced, which contains a large amount of heavy metal ions, and direct discharge will cause new pollution. T...

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides the treatment equipment and treatment process for the desulfurization wastewater of the power plant, which solves the problem that the acceleration mixing and stirring device of the previous equipment is not energy-saving and the stirring is insufficient, and the pH value of the desulfurization wastewater is not monitored or although there is monitoring, it cannot The problem of dynamic adjustment defects

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