Treatment and reuse system and treatment and reuse method for wastewater produced during cleaning of finished products and/or raw materials of automobile parts

A technology for auto parts and wastewater cleaning, applied in water/sewage treatment, metallurgical wastewater treatment, biological water/sewage treatment, etc., can solve problems affecting the normal use of equipment, affecting the effect of desalination treatment, high oil content, etc.

Pending Publication Date: 2021-01-15
SHANGHAI YIKE GREEN ENG
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil content in the raw water is sampled and tested, and the content is about 350-500mg / L, which is relatively high. Considering that the desalination treatment process is adopted in the later stage, the oil will greatly affect the desalination treatment effect, affect the normal use of the equipment, and shorten the equipment. service life

Method used

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  • Treatment and reuse system and treatment and reuse method for wastewater produced during cleaning of finished products and/or raw materials of automobile parts
  • Treatment and reuse system and treatment and reuse method for wastewater produced during cleaning of finished products and/or raw materials of automobile parts
  • Treatment and reuse system and treatment and reuse method for wastewater produced during cleaning of finished products and/or raw materials of automobile parts

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Embodiment 1

[0138] A large-scale domestic joint venture automobile bearing manufacturing plant originally built a wastewater treatment station, which mainly treats the cleaning wastewater and wet dust removal wastewater discharged from the bearing raw material and finished product cleaning production line. The raw water of the cleaning production line adopts the existing pure water system in the factory. Water is used as the replenishment water source, and the water quality of the reclaimed water after the cleaning wastewater treatment is difficult to meet the water requirements of the bearing bush raw materials and finished product cleaning production line. The industrial park has strict restrictions on the total amount of industrial wastewater discharged by the enterprise. The discharge will directly affect the production and operation of the company, so it is urgent to build a deep waste water reuse system. The water quality after treatment can meet the water quality requirements for the...

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Abstract

The invention provides a treatment and reuse system and a treatment and reuse method for wastewater produced during cleaning of finished products and/or raw materials of automobile parts. The treatment and reuse system comprises a coagulation air floatation device, a coagulation sedimentation device, a first filter, an evaporation device, a heat exchange device, a biochemical device, an advanced oxidation device, a biological aerated filter, a second filter, an ultrafiltration device, an activated carbon filter, a reverse osmosis device an ion exchange device, a sterilization device and a filtering device which are in fluid communication in sequence. According to the invention, the automobile part finished product and/or raw material cleaning wastewater is subjected to advanced treatment and is reused for cleaning the automobile part finished product and/or raw material, an original pure water treatment system device is replaced to achieve the purposes of energy conservation and emission reduction, and the surface of the finished product and/or raw material cleaned by the water has no white spots, water stains and other undesirable quality.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and relates to a waste water treatment and reuse system and a treatment and reuse method for finished auto parts and / or raw materials. Background technique [0002] The finished cleaning wastewater of automotive aluminum parts contains hydrocarbon cleaning solvents (including decane to undecane) for surface treatment of finished parts in the processing workshop, cooling cutting fluid (including mineral oil, non-ionic emulsifiers, anti-rust additives) etc.), special cleaning agent for aluminum alloy (containing triethanolamine oleic acid soap, polyether (L61), alcohol ether solvent), low foam antirust cleaning agent (containing coconut oil fatty acid diethanolamide (6501), polyether (L61), alcohol ether solvents), alkaline cleaning agent (containing potassium hydroxide), abrasive liquid (containing nonylphenol polyoxyethylene 6 ether, fatty acid glycerides, triethanolamine lauryl sulfate, sodi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/16
CPCC02F1/001C02F1/04C02F1/24C02F1/42C02F1/444C02F1/5281C02F3/1268C02F3/30C02F9/00C02F2001/007C02F2001/427C02F2103/16C02F2301/08
Inventor 宋伟杨雷王宏志孙涛宋力
Owner SHANGHAI YIKE GREEN ENG
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