What are the methods for preventing and controlling wastewater pollution in power plants?

The sewage discharged from the power plant must be strictly treated, but pollution control is still very important. Pollution prevention and control According to the water quality characteristics of various types of waste and sewage, the method of decontamination, diversion and centralized treatment is adopted, and the waste water from each water system is concentrated in the industrial waste water treatment station, desulfurization waste water treatment system, coal water treatment system, and domestic sewage treatment system. After treatment, all the treated sewage will be reused.

Industrial wastewater treatment station:

The industrial wastewater is collected through the industrial wastewater sewers in the factory area, enters the industrial wastewater conditioning tank, and is pumped from the industrial wastewater to the industrial wastewater treatment room. The industrial wastewater treatment system includes facilities and equipment such as grilles, industrial wastewater conditioning tanks, industrial wastewater treatment equipment, industrial wastewater recovery clean water tanks and clean water lift pumps.

Desulfurization wastewater treatment system:

There is a desulfurization wastewater treatment device, and the desulfurization wastewater is treated for dry ash humidity control, ash field spraying, and dry slag humidity control.

Coal water treatment system:

The water for hydraulic cleaning, spraying and dust removal of the coal conveying system is collected and treated by the drainage of the system and supplied. The washing and draining of the coal conveying system is lifted by the water pump set at each transfer station, and then sent back to the coal water treatment room for treatment through the coal water pipeline.

Domestic sewage treatment system:

It is collected through the domestic sewage drainage pipe network in the factory area to the domestic sewage treatment station, and used for greening in the factory area after treatment.

Non-recurrent drainage Non-recurring drainage such as boiler pickling water, air preheater flushing water, etc.

After the new boiler is started and the boiler is overhauled, the boiler and high-pressure steam water pipeline need to be pickled, generally every 4-5 years, and the boiler pickling wastewater is drained irregularly. Boiler pickling wastewater is transported to the factory boiler pickling wastewater tank or industrial wastewater treatment station, and is treated by industrial wastewater treatment equipment for recycling.

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Further reading:

controlling wastewater pollution in power plants

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