Treatment technology of comprehensive wastewater produced by engine manufacturing

A technology for treating and integrating wastewater, applied in biological water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc. It can solve the complex multi-stage treatment process, unstable effluent quality and large consumption of chemicals and other problems to achieve the effect of preventing the formation of the filter cake layer, excellent anti-blocking and anti-pollution ability, and delaying the speed

Inactive Publication Date: 2016-03-23
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE +2
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Problems solved by technology

In addition, there are still problems in the existing process, such as large consumption of chemicals, high operating costs, complex multi-stage treatment process, unstable effluent quality, etc., which cause a certain burden on enterprise treatment and government supervision.
[0007] Therefore, the treatment of comprehensive wastewater from automobile engine manufacturing containing high-concentration emul

Method used

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  • Treatment technology of comprehensive wastewater produced by engine manufacturing
  • Treatment technology of comprehensive wastewater produced by engine manufacturing

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Embodiment 1

[0037] A treatment process for comprehensive waste water produced by engine manufacturing, comprising the following steps:

[0038] (1) The comprehensive wastewater is discharged from the workshop to the sewage treatment station with pressure flow, and then enters the storage tank of the sewage treatment station for water quality adjustment. The longer hydraulic retention time HRT is 10-12h;

[0039] (2) Set up a degreaser to separate part of the free slick oil, and the oil is collected to the oil slick collector through the pipeline, and then recycled by a qualified unit after collection.

[0040] (3) The wastewater treated in step (2) is lifted into the tubular degreaser through the lifting pump, and the fine oil slick and most of the suspended matter in the wastewater are further removed through the tubular degreaser; the tubular degreaser adopts The steel tank body is set as an inclined tube to improve the oil removal efficiency. The surface load rate of the tubular degre...

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Abstract

The invention discloses a treatment technology of comprehensive wastewater produced by engine manufacturing. The treatment process comprises three sections: 1) a preliminary oil removal section: comprehensive wastewater produced by engine manufacturing is sent into a water reservoir, and after the water quality is adjusted, tiny oil slick and most suspended matters are separated out by the aid of simple gravity by use of an oil remover and a tubular remover; 2) a membrane filtration section: the wastewater enters a membrane filtration system after being filtered by a bag filter and filtered under certain pressure with a tubular ultrafiltration membrane used as a filtration medium; 3) integrated A/O (anaerobic/oxic) treatment section: a membrane penetration liquid and factory domestic wastewater are mixed to enter an integrated A/O biochemical treatment system for treatment. Compared with the prior art, the technology has the advantages that the cost of agents for sludge disposal is reduced, the treated comprehensive wastewater can be treated with domestic wastewater, besides, the whole technological structure is compact, and the technological process is short.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a treatment process for comprehensive waste water produced by engine manufacturing. Background technique [0002] With the continuous development of the automobile industry, the total amount of wastewater generated in the manufacturing process is increasing, and there are many types of wastewater. The comprehensive wastewater generated by automobile engine manufacturing mainly comes from: parts cleaning fluid; cutting fluid; cleaning waste fluid left in the assembly process; wastewater in painting; The pollutant content in the liquid is the highest, mainly high-concentration emulsion. The comprehensive wastewater contains citric acid, isopropanolamine, mineral oil, non-ionic surfactant, sodium carbonate, sodium sulfate, organic additives, emulsion and suspended solids, etc. Substance, complex chemical composition, high organic content, high oil content, serious p...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/40C02F1/444C02F1/52C02F3/301C02F9/00
Inventor 唐海程维明刘强
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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