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Treatment method for residual sludge after car washing wastewater treatment

A technology for excess sludge and car washing waste water, which is applied in the waste water treatment of vehicle washing facilities, water/sludge/sewage treatment, sludge treatment, etc., can solve the problem that the treatment effect, efficiency and cost are difficult to meet the resource utilization of car washing sludge, etc. problem, to achieve the effect of simple and reasonable structure, high safety, and improved treatment effect

Inactive Publication Date: 2019-05-28
陈方鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a treatment method for residual sludge after car wash wastewater treatment, so as to solve the problem that the existing equipment is difficult to meet the resource utilization of car wash sludge treatment and disposal in terms of treatment effect, efficiency, cost, etc.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] This embodiment provides a method for treating residual sludge after car wash wastewater treatment, comprising the following steps:

[0021] Step 1. Collect the remaining sludge after the treatment of car washing wastewater in the car washing industry, and then aerate the remaining sludge for standby;

[0022] Step 2, electrolyzing the remaining sludge after aeration to prepare a mixture;

[0023] Step 3: transfer the mixture into a dehydrator for dehydration, and then remove the residue after dehydration to realize the treatment of residual sludge after the treatment of car wash wastewater.

[0024] In some embodiments, the remaining sludge in step 1 is put into a micro-nano bubble machine for aeration.

[0025] In some embodiments, the remaining sludge after removing the suspended solids in the second step is placed in an electrochemical treatment device for electrolysis.

[0026] In some embodiments, the electrochemical treatment device includes a cell body, a plur...

Embodiment 2

[0031] In some embodiments, a device for treating residual sludge after car wash wastewater treatment is provided, including a micro-nano-bubble machine, an electrochemical treatment device, and a screw dehydrator. The output port of the micro-nano-bubble machine is connected to the electric The input port of the chemical treatment device is connected, the output port of the electrochemical treatment device is connected with the input port of the screw stacking dehydrator, and the remaining sludge after the treatment of the car wash wastewater is aerated by the micro-nano bubble machine, and then electrolyzed by the electrochemical treatment device. After that, it is concentrated and dehydrated by a screw dehydrator to obtain a residue.

[0032] The device provided in this example, which is applied to the method of treating residual sludge after car wash wastewater treatment, has a compact overall structure, occupies a small space, and has a self-cleaning function. It does not ...

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Abstract

The embodiment of the invention discloses a treatment method for residual sludge after car washing wastewater treatment. The treatment method comprises the following steps: carrying out aeration on the residual sludge; then carrying out electrolysis on the aerated residual sludge; then conveying the residual sludge into a dehydration machine for dehydration; removing dehydrated residual matters. The treatment method for the residual sludge after the car washing wastewater treatment, provided by the embodiment of the invention, adopts a micro-nano bubble machine and has a pre-aeration effect; output water and dross contain a certain amount of oxygen and subsequent treatment or recycling is easy to realize; the sludge is not easy to decay and the effect of removing suspended matters throughan air flotation method is relatively good; the air flotation method is combined with flocculation so that the treatment effect can be further improved. The treatment method provided by the inventionadopts a stacked spiral type sludge dehydration technology; continuous staggered movement of movable and static rings can realize a self-cleaning effect in a barrel body, so that the aim that a filtering gap is not easy to block is realized; meanwhile, mechanical abrasion of equipment is reduced, the service life of the equipment is prolonged, and the treatment method has the advantages of low energy consumption, small noise vibration, a few of faults and safety in operation.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of sewage treatment, in particular to a method for treating residual sludge after car wash wastewater treatment. Background technique [0002] With the continuous improvement of people's living standards, the number of cars in my country is increasing year by year. The outside of the car body is easily polluted and contaminated with dirt during driving. The main pollutants in car wash wastewater are oil pollutants, sediment, and detergents. If these substances are discharged arbitrarily without treatment, it will not only affect the cleanliness and greening of the city, but also affect the living environment of the people to a certain extent; moreover, car wash wastewater also contains some refractory substances, such as oils, organic matter and surfactants. etc., polluting the surrounding rivers, lakes and rivers, and man-made damage to the natural ecological environment. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/121C02F103/44
Inventor 冯传平
Owner 陈方鑫
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