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Device and method for quickly treating and recycling car washing wastewater

A technology of car washing wastewater and water inlet device, which is applied in the fields of vehicle washing facility wastewater treatment, water/sewage treatment, water/sewage multi-stage treatment, etc. Convenience and the effect of reducing car wash costs

Inactive Publication Date: 2020-09-25
陈方鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention provides a device and method for rapid treatment and reuse of car wash wastewater to solve the technical problem that the car wash wastewater generated in car wash rooms is difficult to be quickly reused

Method used

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  • Device and method for quickly treating and recycling car washing wastewater

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 195ml of car wash wastewater, 5ml of 30% hydrogen peroxide and 0.6g of sodium sulfate are mixed and added together into the electrochemical reactor 5 of the present invention. After the power supply is turned on and reacted for 1 hour, the surfactant foam of the car wash wastewater has basically Elimination, the color of the effluent is bright and clear, and the COD is reduced from 2885mg / L to 135mg / L.

Embodiment 2

[0050] Taking the actual self-service car washing room car washing wastewater as the experimental object, the above-mentioned device is placed in the car washing room, and the wastewater generated by car washing every day is continuously collected and processed. After the first startup and operation for 1 hour, the effluent water is clear and bright, and the COD concentration is 38.5mg / L, which meets the national reuse water quality standard. It has been running continuously for two months, with daily continuous sampling for the first two weeks, and then once every three days. The effluent water is always clear and bright. The test data shows that the effluent water quality is stable, and the COD concentration has been kept below the national reuse water quality standard.

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Abstract

The invention discloses a rapid treatment and recycling device and method for car washing wastewater, and relates to the technical field of wastewater treatment. The rapid treatment and recycling device for the car washing wastewater comprises a car washing wastewater inlet device and an electrochemical reactor, wherein the electrochemical reactor is provided with a flocculation chamber, an oxidation chamber and a filtering chamber, electrode plates are arranged in the flocculation chamber and the oxidation chamber, a dross scraping mechanism is arranged at the upper part of the flocculation chamber, the flocculation chamber is connected with an air dissolving mechanism, the oxidation chamber is connected with an aeration mechanism, and the filtering chamber and the oxidation chamber are connected with a dosing device for dosing a treating agent. Based on electric flocculation, electric Fenton with additional addition of hydrogen peroxide and a pressurized dissolved air flotation technology, the electric conductivity is improved, the treatment speed is increased and the treatment cost is reduced by additionally adding sodium sulfate, so that rapid recycling of the car washing wastewater is realized. Meanwhile, polyacrylamide is added, so that suspended, emulsified or dissolved pollutants quickly form lumps, and the filtering efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a device and method for rapid treatment and reuse of carwash wastewater. Background technique [0002] With the optimization and improvement of automobile production technology and technology and the significant increase in people's living standards, the number of automobiles has increased rapidly. In order to clean the vehicle, regular cosmetic cleaning and maintenance of the vehicle will inevitably lead to a large consumption of water resources and a large amount of car wash wastewater. At present, because the management of the car washing industry in most cities is not perfect enough, car washing wastewater is discharged to the road at random, causing pollution in all aspects. Surfactant is one of these pollutants. Surfactants pose many hazards to the environment, wildlife, and humans. At the same time, the car washing industry consumes a lot of water, and failu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F103/44C02F1/56
CPCC02F9/00C02F2103/44C02F1/722C02F1/5281C02F2001/007C02F1/56C02F2305/026
Inventor 邓阳刘成
Owner 陈方鑫
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