CN211035519U - Carwash effluent disposal system - Google Patents

Abstract

The utility model discloses a car washing waste water treatment system, which comprises a grid pool, a water collecting pool, an oil separator, a regulating pool, a lifting pool, a pipeline mixer, a medicine stirring pool, an inclined tube sedimentation pool and a gas-water which are connected in sequence and form a communication. Mixing tank, as well as dosing device, clean water tank, sludge thickening tank and sludge filter press; the dosing device is connected with the pipeline mixer, the clean water tank is connected with the gas-water mixing tank, and the sludge thickening tank is respectively connected with the gas-water mixing tank , the inclined tube sedimentation tank and the adjustment tank are connected, the sludge thickening tank is connected with the sludge filter press and the water collection tank respectively; the sludge filter press is connected with the water collection tank; the car washing wastewater treatment system can be processed. Reuse water standard, achieve the recycling of waste water after treatment, and recycling and utilization of intermediate waste during the treatment process, so as to avoid secondary pollution to the environment, achieve zero discharge, and effectively save resources and energy.

Description

Car Wash Wastewater Treatment System

technical field

The utility model relates to the technical field of environmental protection, in particular to a car washing waste water treatment system.

Background technique

With the continuous increase of the number of automobiles in our country, the car washing industry is booming in our country and is developing day by day. On the one hand, the prosperity of the car washing industry confirms the vitality of my country's automobile industry. The more common high-pressure cleaners for car washing, according to conservative estimates, each car washes at least 0.15 cubic meters to 0.2 cubic meters of water per car wash. The natural ecological environment has been destroyed by man. In order to save water resources, the recycling and reuse of car washing wastewater has become the only way.

The reuse of car washing wastewater can realize water resources and harmlessness, play an important role in protecting the environment, preventing water pollution, and alleviating the shortage of water resources, and has obvious social and economic benefits.

Utility model content

The purpose of the utility model is to provide a car washing wastewater treatment system which can realize the treatment and recycling of the car washing wastewater.

For this reason, the technical scheme of the present utility model is as follows:

A car washing waste water treatment system, comprising a grid pool, a water collecting pool, a grease trap, a regulating pool, a lifting pool, a pipeline mixer, a potion stirring pool, an inclined tube sedimentation pool and a gas-water mixing pool, which are connected in sequence and form a communication, and a heating pool. medicine device, clean water tank, sludge thickening tank and sludge filter press; wherein, the liquid outlet end of the chemical dosing device is connected with the liquid inlet end of the pipeline mixer through a connecting pipeline; The liquid inlet end is connected with the liquid outlet end of the gas-water mixing tank through a connecting pipeline; the first inlet end of the sludge thickening tank is connected with the solid outlet end of the gas-water mixing tank through a connecting pipeline, The second inlet end of the sludge concentration tank is respectively connected with the sludge outlet end at the bottom of the inclined tube sedimentation tank and the sludge outlet end at the bottom of the adjustment tank through the connecting pipeline, and the solid outlet of the sludge concentration tank is connected. The end is connected with the inlet end of the sludge filter press through a connecting pipeline, and the liquid outlet end at the top of the sludge concentration tank is connected with the liquid inlet end of the sump through a connecting pipeline; the sludge The liquid outlet end of the filter press is connected with the liquid inlet end of the sump through a connecting pipeline; at least one lift pump is arranged in the sump, and at least one submersible sewage pump is arranged in the lift pool .

Further, the grid clearance of the grids arranged in the grid pool is 25-40 mm.

Further, a water pump with a fiber filter is arranged in the clean water pool.

Further, a pit is dug under the car wash site, and a grid plate flush with the ground is laid above the pit; the grid pool and the water collecting pool are arranged below the ground, and the pit is It is communicated with the water inlet end of the grid pool.

Further, flow regulating valves are installed on the connecting pipelines between the devices.

Compared with the prior art, the car-washing wastewater treatment system can make the car-washing wastewater reach the production and reuse water standard after being treated, so that the wastewater can be recycled after being treated, and it has the advantages of less floor space, less engineering investment, less energy consumption for operation and treatment. It has the characteristics of low cost, and the intermediate waste is recycled and utilized during the treatment process, so as to avoid secondary pollution to the environment, achieve zero emissions, and effectively save resources and energy.

Description of drawings

FIG. 1 is a schematic structural diagram of a car washing wastewater treatment system of the present invention.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and specific embodiments, but the following embodiments do not limit the present utility model in any way.

As shown in Figure 1, the car washing wastewater treatment system includes a grid tank 2, a water collection tank 3, an oil separator 4, a regulating tank 5, a lifting tank 6, a pipeline mixer 7, a liquid mixing tank 8, and an inclined tube sedimentation tank 9, The gas-water mixing tank 10, the clear water tank 11, the sludge concentration tank 12, the sludge filter press 13 and the dosing device 14; wherein,

A pit 1 is dug under the car wash site, and a grating plate flush with the ground is laid above the pit 1, so that the car washing waste water flows into the pit 1 through the grating plate;

The grid pool 2 and the water collecting pool 3 are arranged underground and the pit 1 is connected with the inlet end of the grid pool 2; wherein, a grid is arranged in the grid pool 2, and the gap between the grid bars is 25mm , use the grid pool 2 to remove the larger sand particles and sundries in the car washing wastewater flowing into the pit 1;

The water inlet end of the sump 3 is connected to the west of the outlet end of the grille pond 2 for collecting the waste water obtained by preliminary filtration through the grille pond 2; a lift pump 15 is arranged in the sump 3, and the The liquid outlet end is connected with the liquid inlet end of the oil separator 4 through a connecting pipeline, and the waste water in the sump 3 is pumped to the oil separator 4 by a lift pump;

The grease trap 4 specifically adopts a sloping plate grease trap, the bottom end of which is connected with the liquid inlet end of the bottom end of the adjustment pool; wherein, the grease trap 4 separates the waste water from oil and water, so that the grease in the waste water floats, and the separated water passes through the The liquid outlet at the bottom of the oil separator enters the regulating tank;

The regulating tank 5 is used to adjust the water quality and flow of the wastewater, so that the water quality in different periods of time can be uniform in the regulating tank; The liquid outlet end of the regulating tank 5 is communicated with the liquid inlet end of the lifting tank 6;

A submersible sewage pump 16 is arranged in the lifting tank 6, so that the waste water entering the lifting tank 6 from the liquid outlet end of the regulating tank 5 is pumped to the pipeline mixer 7 at a certain flow rate;

The pipeline mixer 7 includes two liquid inlet ends and one liquid outlet end arranged on the mixing pipe body, wherein the first liquid inlet end of the pipeline mixer 7 is connected with the liquid outlet end of the lifting tank 6 through a connecting pipeline, The second liquid inlet end of the pipeline mixer 7 is connected with the liquid outlet end of the dosing device 14 through the connecting pipeline, and the liquid outlet end of the pipeline mixer 7 is connected with the liquid inlet end of the medicinal solution stirring tank 8 through the connecting pipeline; There is an infusion pump in the dosing device 14, so that the pre-mixed flocculant and coagulant mixture contained in the dosing device 14 is pumped to the pipeline through the infusion pump according to the flow matched with the submersible sewage pump 16. In the mixer 7, the waste water entering the pipeline mixer 7 is mixed with the mixed solution of the flocculant and the coagulant aid according to a certain proportion, and then enters the liquid mixing tank 8 through the liquid outlet end of the pipeline mixer 7;

A stirring device is arranged in the potion stirring tank 8, so that the waste water entering the potion stirring tank 8 through the liquid outlet end of the pipeline mixer 7 and the mixed liquid of flocculant and coagulant aid mixed with it in proportion are fully stirred and mixed, so that the flocculation is carried out. Under the action of the coagulant aid, the agent adsorbs and reacts with the impurities in the wastewater to form flocs. After proper stirring, the flocs stick to each other to form agglomerates;

The liquid inlet end of the inclined tube sedimentation tank 9 is communicated with the liquid outlet end of the medicinal solution stirring tank 8, so that the waste water that produces alum flower enters the inclined tube sedimentation tank 9, and the substance with a specific gravity greater than water sinks into the bottom of the tank under the action of gravity, from the water. Separation; the inclined tube sedimentation tank 9 includes a liquid outlet end arranged on the upper part of the pond body and a solid outlet end arranged at the bottom of the pond body, so that the material with a specific gravity greater than water deposited to the bottom of the pond body can be separated from the solid outlet end, and the water Then enter the gas-water mixing tank 10 from the liquid outlet end;

The liquid inlet end of the gas-water mixing tank 10 is communicated with the liquid outlet end of the inclined tube sedimentation tank 9. When the separated effluent in the inclined tube sedimentation tank 9 overflows into the gas-water mixing tank 10, the effluent water in the gas-water mixing tank 10 A large number of dense air bubbles smaller than 0.01 μm are generated in the floc and adhere to the surface of the floc to form scum. The scum is separated by the scraper plate set at the top of the gas-water mixing tank 10 and connected to the solid outlet at the top of the gas-water mixing tank 10. The connecting pipelines between the sludge thickening tanks 12 are transported to the sludge thickening tanks 12;

The liquid inlet end of the clean water tank 11 is connected with the liquid outlet end of the gas-water mixing tank 10 through a connecting pipeline, so that the effluent water separated from the slag by the gas-water mixing tank 10 enters the clean water tank 11, and realizes recycling for recycling;

The sludge concentration tank 12 includes a first inlet end, a second inlet end, a solid outlet end and a liquid outlet end located on the top of the tank body; the first inlet end of the sludge concentration tank 12 is connected to the gas-water The solid outlet end of the mixing tank 10 is connected through a connecting pipeline, and the second inlet end of the sludge thickening tank 12 is connected to the sludge outlet end at the bottom of the inclined tube sedimentation tank 9 and the sludge outlet end at the bottom of the regulating tank 5 through the connecting pipeline respectively. connected, and a sludge pump is provided on the two main pipelines respectively connected with the first inlet end and the second inlet end, so as to realize the intermediate process of the wastewater treatment process in the regulating tank 5, the inclined tube sedimentation tank 9 and the gas-water mixing tank. All sludge produced by precipitation in 10 is transported to sludge thickening tank 12 for unified treatment;

The solid outlet end of the sludge concentration tank 12 is connected with the inlet end of the sludge filter press 13 through a connecting pipeline, and the liquid outlet end at the top of the sludge concentration tank 12 is connected with the liquid inlet end of the sump 3 through a connecting pipeline. ; Make the sludge entering the sludge thickening tank 12 precipitate under the action of gravity, so that the supernatant liquid overflows from the connecting pipeline to the sump 3 under the action of gravity for circulating treatment, while the lower sludge sedimentation is pumped into the sewage. In the mud filter press 13, the solid mud cake is discharged by pressure filtration, so as to be uniformly recycled and transported to the treatment plant for unified treatment; the sludge filter press 13 is also provided with a liquid outlet end, which is connected with the liquid inlet end of the sump 3 through a connection. The pipelines are connected, so that the clear liquid produced by the pressure filtration will overflow into the sump 3 through the connecting pipeline under the action of gravity, and carry out circulation treatment; in addition, the connecting pipelines between the above devices are equipped with The flow regulating valve enables the entire treatment process of the automobile wastewater treatment system to be controllably adjusted according to actual needs and conditions.

In another embodiment of the present application, according to the water quality, a water pump with a fiber filter can also be installed in the clear water tank 11 for filtration treatment, so as to realize that the water in the clear water tank 11 is sequentially sent to the sand filter and the sand filter pinched by the water pump. Activated carbon filter is used for filtration treatment to achieve advanced treatment of effluent. In addition, in the actual operation process, it can be considered whether to carry out filtration treatment according to the quality of the coagulation and sedimentation effluent, and the filtered water should be chlorinated and disinfected.

Claims (5)

1. A car washing wastewater treatment system is characterized by comprising a grid pool (2), a water collecting pool (3), an oil separating pool (4), an adjusting pool (5), a lifting pool (6), a pipeline mixer (7), a liquid medicine stirring pool (8), an inclined tube sedimentation pool (9) and a gas-water mixing pool (10), a medicine adding device (14), a clean water pool (11), a sludge concentration pool (12) and a sludge filter press (13) which are sequentially connected and communicated; the liquid outlet end of the dosing device (14) is connected with the liquid inlet end of the pipeline mixer through a connecting pipeline; the liquid inlet end of the clean water tank (11) is connected with the liquid outlet end of the gas-water mixing tank (10) through a connecting pipeline; a first inlet end of the sludge concentration tank (12) is connected with a solid outlet end of the gas-water mixing tank (10) through a connecting pipeline, a second inlet end of the sludge concentration tank (12) is respectively connected with a sludge outlet end at the bottom of the inclined tube sedimentation tank (9) and a sludge outlet end at the bottom of the adjusting tank (5) through connecting pipelines, a solid outlet end of the sludge concentration tank (12) is connected with an inlet end of the sludge press filter (13) through a connecting pipeline, and a liquid outlet end at the top of the sludge concentration tank (12) is connected with a liquid inlet end of the water collecting tank (3) through a connecting pipeline; the liquid outlet end of the sludge filter press (13) is connected with the liquid inlet end of the water collecting tank (3) through a connecting pipeline; at least one lifting pump (15) is arranged in the water collecting tank (3), and at least one submersible sewage pump (16) is arranged in the lifting tank (6).

2. The carwash effluent disposal system according to claim 1 wherein the grid gaps of the grids disposed within said grid basin (2) are 25-40 mm.

3. The car wash wastewater treatment system according to claim 1, characterized in that a water pump with a fiber filter is provided in the clean water tank (11).

4. The car washing wastewater treatment system according to claim 1, wherein a pit (1) is dug below the underground of the car washing yard, and a grid plate flush with the ground is laid above the pit (1); the grating pool (2) and the water collecting pool (3) are arranged below the ground, and the pit (1) is communicated with the water inlet end of the grating pool (2).

5. The car wash wastewater treatment system according to claim 1, wherein a flow regulating valve is additionally installed on a connection pipe between each device.

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