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Wastewater treatment device and treatment method aiming at metal surface treatment plant

A technology for metal surface treatment and wastewater treatment, applied in multi-stage water treatment, flotation water/sewage treatment, neutralized water/sewage treatment, etc. Small footprint effect

Inactive Publication Date: 2016-04-13
GUANGDONG JUNFENGHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In the above production process, a certain amount of production wastewater will be produced, which cannot be discharged directly, and needs to be treated to meet the discharge standards.

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  • Wastewater treatment device and treatment method aiming at metal surface treatment plant
  • Wastewater treatment device and treatment method aiming at metal surface treatment plant
  • Wastewater treatment device and treatment method aiming at metal surface treatment plant

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Embodiment Construction

[0050] The present invention provides a waste water treatment device and treatment method for metal surface treatment workshops. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] The invention provides a waste water treatment device for a metal surface treatment workshop, which is designed for the characteristics of the waste water generated by degreasing, pickling, surface adjustment and phosphating treatment of metal workpieces in the metal surface treatment workshop, and is suitable for metal surface treatment. Wastewater treatment plant in the workshop. After testing, the wastewater mainly contains oily substances, acids and bases, surfactants, phosphates and organic matter and other pollutants....

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Abstract

The invention discloses a wastewater treatment device and treatment method aiming at a metal surface treatment plant. The wastewater treatment device aims at the wastewater generated in the process of carrying out deoiling, pickling, surface adjustment and phosphorization treatment on a metal workpiece in the metal surface treatment plant, and comprises an oil separation tank, an adjusting tank, a first pH adjusting tank, a first coagulation reaction tank, a floating tank, a second pH adjusting tank, a second coagulation reaction tank, a first settling tank, a middle water tank, a filtering purification device, a hydrolysis acidifying tank, a contact oxidation tank, a second settling tank, a clear water tank, a dosing device and a sludge concentration tank which are sequentially connected by pipelines. After the wastewater is treated by the wastewater treatment device, 80% of treated wastewater is recycled to a production line, and 20% of treated wastewater is discharged up to the standard after further treatment.

Description

technical field [0001] The present invention relates to the field of environmental protection equipment design, and mainly relates to a waste water treatment device and treatment method for metal surface treatment workshops, especially for the waste water produced by degreasing, pickling, surface conditioning and phosphating treatment of metal workpieces in metal surface treatment workshops. waste water. Background technique [0002] The main function of the existing metal surface treatment workshop is to phosphate steel workpieces, improve the "activity" of the workpiece surface, and create conditions for the subsequent spraying process. The process of metal surface treatment includes degreasing, pickling, surface conditioning, phosphating and other treatments for metal workpieces. Its main production process is as follows: [0003] (1) Degrease: The purpose of degrease is to remove the grease and oil on the surface of the workpiece. The company uses a chemical method to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/24C02F1/40C02F1/52C02F1/66C02F3/02C02F3/28C02F2001/007C02F2301/08
Inventor 曾玉成邓达增
Owner GUANGDONG JUNFENGHUA TECH CO LTD
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