Desulfurization wastewater zero-discharge treatment device and method

Abstract

The invention discloses a desulfurization wastewater zero-discharge treatment device and method. The device comprises a base, a pre-sedimentation tank, a wastewater buffer tank and a treatment tank are fixedly mounted on the upper surface of the base in sequence from left to right, two water pumps are horizontally arranged on the upper surface of the base, the two water pumps are respectively arranged between the pre-sedimentation tank and the wastewater buffer tank and between the wastewater buffer tank and the treatment tank, and water pumping pipes, corresponding to water pumps, are fixedlyconnected between the middle position of the bottom of one side wall, close to the wastewater buffer tank, of the pre-sedimentation tank and the middle position of the top of one side wall, close tothe treatment tank, of the wastewater buffer tank. In the present invention, the treatment method can assist in drying to increase the wastewater evaporation rate, the air blowing range is wide, the drying strength is improved, particles attached to the surface of the electrostatic dust collection structure are removed to facilitate cleaning, a sludge treatment structure is arranged, the desulfurization wastewater zero-discharge treatment capacity is shared, the pressure of working parts is reduced, and repeated purification treatment is facilitated through secondary sedimentation.

Description

technical field [0001] The invention relates to the technical field of desulfurization wastewater treatment, in particular to a zero-discharge treatment device and method for desulfurization wastewater. Background technique [0002] In the process of desulfurization wastewater treatment, wet desulfurization is first performed, and the obtained desulfurization wastewater is subjected to sedimentation separation, atomization and electrostatic dust removal at one time through the zero discharge treatment method. Processing operations. [0003] The traditional zero-discharge treatment method for desulfurization wastewater cannot perform auxiliary drying, which affects the evaporation rate of wastewater, making the drying force poor and cannot remove the particles attached to the surface of the electrostatic precipitator structure, which brings inconvenience to its cleaning. At the same time, no sludge treatment structure , cannot share the zero-discharge treatment capacity of d...

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Problems solved by technology

[0003] The traditional zero-discharge treatment method for desulfurization wastewater cannot perform auxiliary drying, which affects the evaporation rate of wastewater, making the drying force poor and cannot remove the particles attached to the surface of the electrostatic precipitator structure, which brings inconvenience to its cleaning. At the same time, no sludge treatment structure , cannot share the zero-discharge treatment capacity of desulfurization wastewater, resulting in high pressure on the working parts and troubles for secondary settlement and multiple purification treatments

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