Method and device for cooperative treatment of waste gas and wastewater from automobile repair factories

A technology for collaborative processing and auto repair plants, which is applied in the direction of gaseous effluent wastewater treatment, gas treatment, water/sewage treatment, etc., and can solve the problems of increased energy consumption, total emissions of air pollutants exceeding the environmental capacity, and unstable business sites, etc. problems, to achieve the effect of increasing the three-phase mass transfer rate, reducing the occupied area, and reducing operating costs

Active Publication Date: 2019-03-12
ENVIRONMENTAL PROTECTION RES INST OF LIGHT IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Auto repair enterprises are mostly medium, small and micro enterprises, distributed around cities and in urban and rural areas. Biological sewage treatment technology is highly specialized and requires experienced technicians to manage and operate, while auto repair companies have high mobility of employees, which is not conducive to the operation and management of their sewage treatment facilities
At the same time, the environmental climate also has a great influence on the physicochemical and biological methods. The temperature of the sewage directly affects the coagulation effect and microbial activity, especially in winter when the water temperature decreases. In order to ensure the treatment effect,

Method used

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  • Method and device for cooperative treatment of waste gas and wastewater from automobile repair factories
  • Method and device for cooperative treatment of waste gas and wastewater from automobile repair factories
  • Method and device for cooperative treatment of waste gas and wastewater from automobile repair factories

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1 Device for Cooperative Treatment of Exhaust Gas and Wastewater in Auto Repair Plant

[0029] like figure 1 As shown, the device for the co-processing of waste gas and wastewater in auto repair plants of the present invention includes a first absorption tower 1 , a grease trap 7 and a second absorption tower 2 connected in sequence. The top of the first absorption tower 1 is provided with a first spraying device 6, the top of the first absorption tower 1 is provided with a waste water inlet and a waste gas outlet, and the bottom part is provided with a waste gas inlet and a waste water outlet; the grease trap 7 includes a waste water inlet and a waste water outlet, and the waste water inlet is connected to the waste water outlet. The first absorption tower 1 is connected to the waste water outlet; the second absorption tower 2 is provided with a second spray device 8 on the top, the upper part of the second absorption tower 2 is provided with a waste water inle...

Example Embodiment

[0033] Embodiment 2 The method for the synergistic treatment of exhaust gas and wastewater in auto repair plants

[0034] Adopt the device of embodiment 1 to carry out synergistic treatment to waste gas waste water of auto repair factory, method is as follows:

[0035] like figure 1As shown, the alkali-containing waste water from the auto repair plant is buffered in the waste water regulating tank 3 and then pumped into the first absorption tower 1 through the waste water inlet on the upper part of the first absorption tower 1, and the waste gas from the auto repair plant is sent into the waste gas through the waste gas regulating device 4. The waste gas inlet at the lower part of the first absorption tower 1, the waste water enters the first absorption tower 1 and is evenly sprayed by the first spray device 6, scattered and falls, and the waste gas passes through the waste gas distributor 5 and contacts the waste water from the top of the tower in countercurrent, and the wast...

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Abstract

The invention discloses a method for cooperative treatment of waste gas and wastewater from automobile repair factories. The method comprises the following steps: a. enabling the wastewater to entersa first absorption tower from the upper part of the first absorption tower, enabling the waste gas to enter the first absorption tower from the lower part of the first absorption tower, and completingthe absorption of the wastewater and the waste gas in the first absorption tower; b, enabling the waste gas discharged out from the first absorption to enter a second absorption tower from the lowerpart of the second absorption tower, enabling the wastewater discharged from the first absorption to be subjected to oil separation treatment and then enter the second absorption tower from the upperpart of the second absorption tower, adding activated carbon powder into a liquid phase in the second absorption tower, enabling ozone to enter the second absorption tower from the bottom of the second absorption tower, and enabling the waste gas and the wastewater to be subjected to an ozone catalytic oxidation reaction in the second absorption tower. The method can avoid the phenomenon of randomemission of the wastewater and the waste gas of the small and medium-sized automobile repairing factories, reduces pollution, and improves the treatment efficiency while reducing the cost of pollutant treatment.

Description

technical field [0001] The invention relates to a method for treating waste gas and waste water, in particular to a method for synergistic treatment of waste gas and waste water in auto repair plants, and also relates to a device for synergistic treatment of waste gas and waste water in auto repair plants. Background technique [0002] With the rapid development of the automobile industry, the corresponding automobile maintenance service industry has also been developed rapidly, but the environmental pollution caused by it has gradually attracted people's attention. The wastewater of the auto repair factory mainly includes: automobile cleaning wastewater, engine chassis disassembly workshop cleaning wastewater, paint spray water curtain spray wastewater, workshop cleaning wastewater and employee domestic wastewater, etc. These wastewater components are complex and contain petroleum (gasoline, diesel, engine oil, etc. etc.), suspended particulates (SS), anionic surfactants (L...

Claims

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Application Information

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IPC IPC(8): C02F9/04B01D53/18C02F103/18C02F101/30
CPCB01D53/18B01D2257/708C02F1/281C02F1/40C02F1/725C02F1/78C02F9/00C02F2101/30C02F2103/18
Inventor 张忠国王亮亮李晓洁孙宇维何沛然张健
Owner ENVIRONMENTAL PROTECTION RES INST OF LIGHT IND
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