How to treat the zero discharge of desulfurization wastewater in the steel industry?
At present, the desulfurization wastewater is generated during the operation of the steel industry, and its water quality is very special, containing a variety of impurities, which will pollute the environment. Therefore, the desulfurization wastewater of the steel industry must be treated independently. Today, I will show you how to deal with the zero discharge of desulfurization wastewater in the steel industry.
1.Multi-effect evaporation crystallization unit
After the desulfurization wastewater treatment in the steel industry in advance, the wastewater in it is maintained at a relatively high temperature and enters the four-effect evaporation system. After heating, it is directly sent to the salt slurry tank, which is sent to the salt cyclone by the salt slurry pump. In the end, it was dropped into the centrifuge, and the salt crystals were heated through a drying bed to keep the salt crystals sufficiently dry before being shipped by automobile.
2. Flue evaporation
Generally refers to the atomization nozzle to atomize the desulfurization wastewater, and spray it into the flue between the electrostatic precipitator and the air pre-heater. The high-temperature flue gas is used to evaporate the waste water droplets, and then form micro-particle crystals to enter the dust collector Chinese and foreign drainage in order to achieve the purpose of zero wastewater discharge.
The above is all about the in-depth treatment of zero discharge of desulfurization wastewater in the steel industry. I hope it will be helpful to you. The research and application of zero wastewater discharge technology will protect the precious water resources to a great extent, and the degree of environmental benefits will begin to appear prominent.
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