Coating wastewater treatment system and method

A technology for coating wastewater and treatment system, which is used in waste coating treatment, water/sewage treatment, special compound water treatment, etc. problems, to achieve the effect of thorough treatment, short cycle and improved effluent quality

Pending Publication Date: 2018-09-04
JIANGSU UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention is aimed at the presence of a large amount of heavy metals, petroleum, refractory organic matter and suspended matter in industrially produced coating wastewater, and aims to overcome the defects in the prior art, such as: the conventional process occupies a large area and the treatment cycle long, water

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  • Coating wastewater treatment system and method
  • Coating wastewater treatment system and method
  • Coating wastewater treatment system and method

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Embodiment Construction

[0036] Specific embodiments of the present invention will be described in detail below in conjunction with technical solutions and accompanying drawings.

[0037] Such as figure 1 , 2 As shown, a coating wastewater treatment system includes a regulating tank 1, a coagulation reaction sedimentation tank 2, a flocculation air flotation device 3, a neutralization reaction tank 6, a water collection tank 7, a hydroxyl solution generation system, and a filtration tank connected sequentially through pipelines. The adsorber 9 and the clear water reuse tank 10, and the first dosing device 4 for dosing the coagulation reaction sedimentation tank 2 are used for dosing the coagulation reaction sedimentation tank 2, and for adding medicine to the flocculation air flotation device 3. The second dosing device 5 for medicine;

[0038] A heating device is provided in the regulating pool 1; the functions of the regulating pool 1 include: (a) preliminary settlement and separation; (b) regulat...

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Abstract

The invention belongs to the field of environmental engineering wastewater purification, and specifically relates to a coating wastewater treatment system and method. The coating wastewater treatmentsystem comprises an adjusting tank, a coagulation reaction sedimentation tank, a flocculation air flotation device, a neutral reaction tank, a water collecting tank, a hydroxyl solution generating system, a filtration adsorber and a clear water recycling tank which are connected with one another; a first dosing device is used for dosing for the coagulation reaction sedimentation tank, and a seconddosing device is used for dosing for the flocculation air flotation device. According to the coating wastewater treatment method provided by the invention, coating wastewater enters into the adjusting tank, the coagulation reaction sedimentation tank, the flocculation air flotation device, the neutral reaction tank, the water collecting tank, the hydroxyl solution generating system, the filtration adsorber and the clear water recycling tank in sequence to complete primary treatment process and deep treatment process on wastewater. The coating wastewater integral treatment equipment designed in the invention is thorough in treatment, free of secondary pollution and short in period, and the effluent quality meets wastewater recycling and up-to-standard discharge standards, so that the equipment is expected to be used for industrial treatment of coating wastewater.

Description

technical field [0001] The invention belongs to the field of environmental engineering wastewater purification, and in particular relates to a coating wastewater treatment system and method. Background technique [0002] Coating is the main part of the surface manufacturing process. It can effectively prevent rust and corrosion of construction machinery products, and beautify the appearance of the products. It has been widely used in household appliances, machine tools, machinery, electronics, automobiles, construction, aerospace and other fields. Applications. The painting process will produce a large amount of painting wastewater, mainly from the pre-treatment processes such as pre-degreasing, degreasing, surface adjustment, phosphating, passivation, etc.; Pollutants such as resins, surfactants, heavy metal ions, pigments, etc., especially electrophoresis wastewater and painting wastewater have complex components, high concentrations, and poor biochemical properties, whic...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/14
CPCC02F9/00C02F1/001C02F1/28C02F1/24C02F2001/007C02F1/66C02F1/722C02F1/72C02F1/5281C02F1/5236C02F1/56C02F2305/023C02F2305/02C02F2103/14
Inventor 依蓉婕依成武王慧娟杜道林杜彦生
Owner JIANGSU UNIV
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