Waste liquid treatment method

Abstract

The invention relates to the technical field of waste liquid treatment, in particular to a waste liquid treatment method. The waste liquid treatment method is achieved through the waste liquid treatment device, the waste liquid treatment device comprises a liquid drop output unit, a sterilization chamber, an ultraviolet ray emitting device, a heating device and a vaporization condensation unit, the liquid drop output unit is communicated with the sterilization chamber, ultraviolet rays emitted by the ultraviolet ray emitting device can irradiate the sterilization chamber, and the vaporization condensation unit is communicated with the sterilization chamber; the waste liquid treatment method comprises the following steps: spraying waste liquid into a sterilization chamber in a multi-liquid-drop state by using a liquid drop output unit; ultraviolet rays emitted by an ultraviolet ray emitting device are used for sterilizing liquid drops of the waste liquid in the sterilization chamber; heating the waste liquid in the sterilization chamber by using a heating device to boil and vaporize part of the waste liquid to a vaporization and condensation unit for collection; and discharging the waste liquid in the sterilization chamber. According to the waste liquid treatment method provided by the invention, when bacteria in industrial wastewater are removed, new chemical components are not introduced, and meanwhile, the waste liquid treatment efficiency is improved.

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