JPH09299936A - Treating device of waste water from car washing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reutilize filtered clean water stored in a second tank as car washing water by providing a first filter, the second filter using active carbon arranged at the outlet side of the filter and a second tank for storing the filtered clean water fed out from the second filter. SOLUTION: Wax and an oil component contained in the discharge water are made into a gel or particles by using a filter media such as silicate powder and it is filtered with the first filter 30 and besides it is filtered with the second filter 40 using active carbon and then car washed clean water is obtained. This car washed clean water is recycled to use it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car wash wastewater treatment device.

[0002]

2. Description of the Related Art Conventional car wash devices generally wash the vehicle by directly injecting clean water into the vehicle while moving the vehicle or the car wash device. Generally, the drainage after washing the vehicle with such a car wash device is directly poured into the sewage.

[0003]

However, since the wax and oil components adhering to the car are contained in the waste water, the waste water is poured into the sewage to cause pollution problems, and the clean water is also removed. It is not preferable to use it only for car washing once because it wastes valuable water resources.

[0004]

In order to solve such a problem, in the present invention, the wax or oil component contained in the waste water is gelled or made into particles by using a filtering agent and then filtered. Is used to obtain car wash water, and this car wash water is used for recycling.
An example of this filtering agent is silicon powder.

Therefore, according to one embodiment of the present invention, the first tank for storing the car wash waste water, the car wash waste water stored in this tank and the filter agent for removing the oil component are mixed to wash and filter the car wash waste water. Mixer for producing agent-mixed water, a first filter using a polyurethane filter for removing oily components by filtering car wash wastewater / filter-agent mixed water sent from this mixer, and an output side of this filter And a second tank for storing the filtered fresh water sent from the second filter, and the filtered fresh water stored in the second tank is washed. There is provided a car wash wastewater treatment device characterized by being reused as water.

According to this structure, wax and oil components contained in the waste water are gelled or made into particles by using a filtering agent such as silicon powder, and then filtered, and then activated carbon is used to wash the car wash water. Since the car wash water is used for recycling, valuable water resources can be effectively used.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a basic configuration of an embodiment of a car wash wastewater treatment apparatus according to the present invention. In FIG. 1, a car wash wastewater treatment apparatus 10 includes a car wash apparatus 11 to a drain pipe 12. It has a raw water tank 14 for storing the waste water 13 supplied via the pipe, and a first tank 17 for supplying the waste water 13 stored in the raw water tank 14 via a pipe 15 and a pump 16. The wastewater 13 stored in the first tank 17 is taken in through the wastewater intake 21 and the filtering agent such as silicon which removes the oil component supplied from the filtering agent storage tank 22 according to the flow rate or the degree of pollution. It has a pipe 23 for mixing and mixing and solidifying or condensing the wax and oil components contained in the waste water to form particles. Therefore, this pipe 23 has a function as a mixer for mixing the filtering agent and the waste water.

The pipe 23 includes a check valve 25 and a pump 2
6, connected to the first filter 30 via the control valve 27 and the three-way valve 28. The first filter 30 has a built-in polyurethane filter as a filtering material, and has a function of filtering the wax and oil components gelled or granulated in the pipe 23. Bowl 3
The output side of 0 is connected to the second filter 35 via the three-way valves 31 and 32.

The second filter 35 contains activated carbon as a filter medium and has a function of further removing impurities from the waste water in which the supplied wax and oil components are filtered. The water delivered from this second filter 35 is
Impurities contained in the waste water are almost removed, and the water can be sufficiently used as car wash water. The car wash water 41 is sent to the second tank 40 through the pipe 36 and is stored there. Car wash clean water 4 stored in this second tank 40
1 is sent to the above-described car wash device 11 via the pipe 42, the pump 45, and the pipe 46, and is used as car wash water for the automobile.

Further, in FIG. 1, the three-way valve 32 guides fresh water supplied from a fresh water source (not shown) to the first filter 30 when cleaning the inside of the car wash drainage device 10 and filters the filter 30. It switches to wash the inside. In addition, the fresh water from the fresh water source is passed through the control valves 51 and 52 to the first tank 17
And the inside of each tank is guided to the second tank 40 for cleaning. The clean fresh water supplied to the first filter 30 passes through the first filter 30 and is then introduced into the preparatory chamber 17A of the first tank 17 through the three-way valve 28. It is configured to be supplied to the tank 17 of.

In FIG. 1, 61, 62 and 63 are level meters for measuring the liquid level of each tank, 64 is a drain valve, and 6
5 and 66 are drain pipes when the liquid level of the tanks 17 and 40 reaches a predetermined level close to full, and 67 is a water pipe that drains to the first tank when the preparatory chamber 17A reaches a predetermined level. is there.

In the embodiment shown in FIG. 1, the positions of the pumps 16, 26, 45 are, of course, changed depending on the layout of the car wash drainage device 10 and the car wash device 11 or other reasons. is there. Also, the number of pumps arranged is increased or decreased as necessary.

[0013]

As described above, when the car wash drainage device according to the present invention is used, the wax or oil component contained in the drainage can be gelled or particles using a filtering agent capable of removing the oil component such as silicon powder. It is possible to use valuable water resources effectively because the car wash water is obtained by liquefying it, filtering it, and then using activated carbon to obtain car wash water.

[Brief description of drawings]

FIG. 1 is a system diagram showing a basic configuration of an embodiment of a car wash wastewater treatment apparatus according to the present invention.

[Explanation of symbols]

 10 Car Wash Wastewater Treatment Device 11 Car Wash Device 12 Drain Pipe 13 Drainage 14 Raw Water Tank 15, 23, 42, 46 Pipe 16, 26, 45 Pump 17 First Tank 17A Reserve Room 21 Drainage Intake 22 Filtering Agent Storage Tank 25 Non-return Valve 27,51,52 Control valve 28,31,32 Three-way valve 30 First filter 35 Second filter 40 Second tank 41 Car wash clean water 61,62,63 Level meter 64 Drain valve 65,66,67 Water pipe

Claims (3)

[Claims] 1. A first tank for storing car wash drainage, and a mixer for mixing car wash drainage stored in this tank with a filter agent capable of removing oil components to produce car wash drainage / filter agent mixed water.
A first filter using a polyurethane filter that removes oily components by filtering the car wash wastewater / filtering agent mixed water sent from this mixer, and a first filter that uses activated carbon arranged on the output side of this filter. The second filter and the second tank for storing the filtered fresh water sent from the second filter are provided, and the filtered fresh water stored in the second tank is reused as car wash water. Car wash wastewater treatment equipment characterized by. 2. The filter is arranged between the first filter and the second filter, the output side of the first filter is normally connected to the input side of the second filter, and at the time of reverse cleaning. A switching valve that switches a flowing water path so as to supply fresh water to the first filter, and first and second control valves that supply fresh water to the first tank and the second tank during backwashing. The car wash wastewater treatment device according to claim 1, which is provided. 3. The car wash wastewater treatment device according to claim 1, wherein the filtering agent is silicon.