KR20010104766A - Wastewater disposal device - Google Patents

Abstract

The present invention has been made in order to constitute a waste water purification apparatus for treating domestic wastewater, such as car washes, restaurants, etc. The present invention is the first treatment tank 10 buried underground and the second treatment tank 20 installed above the ground The first treatment tank is equipped with a three-stage treatment chamber for separating oil, filtration and water collection, and installs a blower and a sludge concentration chamber to remove and remove floating sludge during oil and water separation and collection. The second treatment tank is provided with a primary filtration chamber, a settling chamber, and a secondary filtration chamber, and a sludge storage chamber is attached to each other so that oil-water separation and sludge concentration removal are performed in the first chamber of the first treatment tank. Wastewater introduced through the adsorption and removal of organic and inorganic substances is collected in the third chamber, and the wastewater of the third chamber is supplied to the primary filtration chamber of the second treatment tank by pumping and After the excess, the sludge is supplied to the settling chamber to precipitate the sludge, and the step of adsorbing and removing the inorganic material and the organic material through the second filtration chamber is continuously performed, and the final treated water is discharged through the drainage port and settled in the settling chamber. The sludge is discharged to the sludge storage tank through the discharge valve, and then the waste water purification apparatus is characterized in that it is returned to the first chamber of the first treatment tank.

Description

Wastewater Purifier {WASTEWATER DISPOSAL DEVICE}

The present invention relates to a wastewater purification apparatus for treating domestic wastewater, such as a car wash or a restaurant. Specifically, the first treatment tank buried underground and the second treatment tank installed above the ground are separated into partition walls so that a stepwise purification treatment is performed. The present invention relates to a wastewater purification apparatus configured to efficiently recycle and to recycle the final treated water.

Conventionally, wastewater purification devices having various structures have been proposed for wastewater treatment such as domestic sewage or car washes, and these known wastewater purification devices are difficult to install and expensive, and require a lot of space for installation. There was something in common that required highly skilled functions for driving management.

In order to effectively solve this problem, a multi-stage treatment tank according to Patent Registration No. 0179958 and a wastewater purification apparatus (Patent Publication No. 2000-0036706) using the same in domestic wastewater treatment devices have been described.

The waste water purification apparatus includes a first treatment tank buried in the ground, a second treatment tank and a third treatment tank installed on the ground), and in the process in which the overflowed water of the first treatment tank flows out step by step into the second treatment tank. The sewage is collected and the final treatment is carried out through sedimentation and adsorption in the third treatment tank, and it can be very useful for wastewater treatment such as domestic sewage or car wash, but it is flowed by two treatment tanks buried in the ground. As it is configured to separate and collect, there are disadvantages that can be applied when there is sufficient underground burial space, and it is inconvenient to periodically stop operation and perform sludge removal to remove sludge concentrated on the bottom of the first treatment tank. .

The present invention improves the waste water purification apparatus according to the disclosed Patent Publication No. 2000-0036706 to be applied in a narrow buried space, to enable the collection of sludge during operation to minimize the downtime for sludge removal, It is designed for the purpose of further improving the treatment efficiency and the quality of the final treated water so that it can be recycled.

1 is a block diagram of the present invention

2 is an exemplary view of a first treatment tank.

3 is a plan configuration diagram of a second treatment tank;

* Description of the major symbols

10. First treatment tank 10a. Vertical bulkhead 10b. Wastewater inlet

10c. Inner pipe 10d. Horizontal bulkhead 10e.

11.1st room 12.2nd room 13.3rd room

14.Adsorbent 15.Sludge Concentration Room 16.Blower

20.Secondary treatment tank 20a.Vertical bulkhead 20b.Pipe

20c.inner pipe 20d.drain 20e.outlet

21. Activated Carbon 22. First Filtration Room 23. Precipitation Room 24. Second Filtration Room 25. Media 26.

27.Sludge Storage Tank 30.Pump 31,32.External Pipe

To this end, the present invention consists of a second treatment tank is installed on the ground, the first treatment tank is buried underground, the first treatment tank is provided with a three-stage treatment chamber consisting of oil and water separation, filtration and water collection and by installing a blow and sludge concentration chamber Adsorption and removal of floating sludge is carried out during oil separation and collection process, and the second treatment tank installed on the ground is equipped with a primary filtration chamber, a sedimentation chamber and a secondary filtration chamber, and is equipped with a sludge storage chamber. present.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows the basic configuration of the present invention, the present invention consists of a first processing tank 10 embedded in the ground and a second processing tank 20 installed on the ground.

The first treatment tank is separated into the first chamber 11, the second chamber 12, and the third chamber 13 by the vertical bulkhead 10a, and wastewater inflow into the first chamber through the wastewater inlet 10b. An inner pipe 10c connected to the second chamber is installed at the middle part of the partition wall of the first chamber, and the second chamber is divided by the horizontal partition wall 12a on which the water passage 12b is formed, and the adsorbent 14 is installed therein. Wastewater flowing into the first chamber flows through the inner pipe into the third chamber via the second chamber.

The first chamber, the second chamber, and the third chamber are formed separately by the vertical bulkhead as shown in Fig. 2, and are divided by a volume ratio of approximately 2: 1: 1.

The first chamber has a function as an oil / water separation tank, and a sludge concentration chamber 15 is installed in the upper layer portion, and a sludge bag and a sludge suction pipe 15a extending to the bottom of the first chamber are coupled to the sludge concentration chamber, and the sludge suction pipe 15a. The lower portion of the) is coupled to the air outlet of the blower (16; Blower) has a structure that the rising pressure acts in the sludge suction pipe during the air supply to continuously enter the sludge deposited on the floor into the flotation sludge concentration chamber.

The sludge concentration chamber 15 is installed at the same position as the water level line of the first chamber, and when the sludge bag is lifted when the sludge bag is removed to remove the concentrated sludge, the water is lost and the sludge remains during operation. The sludge can be removed.

The second chamber has a function as a filtration tank and is divided in the height direction by the horizontal bulkhead 12a. An adsorbent 14 is installed on the horizontal bulkhead, and the wastewater introduced from the first chamber floats through a water hole formed in the horizontal bulkhead. The organic and inorganic substances contained in the waste water are absorbed by the adsorbent so that the filtration is performed.

As the adsorbent, a ceramic and activated carbon mixture is used.

The third chamber has a function as a sump tank, and the upper layer water of the second chamber passes through the inner pipe or vertical bulkhead with the sludge, inorganic and organic substances contained in the waste water absorbed and removed while passing through the first and second chambers. The water is collected and overflowed into the third chamber, and the collected wastewater is transferred to the second treatment tank on the ground by pumping.

In the second treatment tank 20, the first filter chamber 22 filled with activated carbon 21 is formed on the outer wall side of the upper part, and the precipitation chamber 23 and the second filter chamber divided by the vertical partition wall 20a are formed therein. (24) is formed, the second filter chamber is separated by a horizontal partition wall (24a) formed with a water hole (24b) is filled with the filter medium (25) and activated carbon 26 on the horizontal partition wall, sludge storage tank at the lower end of the settling chamber outer wall (27) is formed, the upper water of the first filter chamber is flowed through the pipe 20b to the settling chamber, the settling chamber and the second filter chamber is connected by the inner pipe (20c), the second filter chamber A drain port 20d is formed at the upper layer portion, and a sludge discharge valve 20e is formed at the lower end of the precipitation chamber and is connected to the sludge storage tank.

Waste water stored in the third chamber (collecting tank) of the first treatment tank is transported by the pump 30 and the external pipe 31 to be supplied to the lower end of the first filtration chamber of the second treatment tank, and the sludge storage tank of the second treatment tank is The sludge is conveyed by being connected to the first chamber of the treatment tank by an external pipe 32.

The first filtration chamber of the second treatment tank is for adsorption filtration of inorganic and organic substances contained in the wastewater by adsorption of activated carbon, and the waste water pumped from the collecting tank of the first treatment tank is supplied from the lower part of the first filtration chamber. In the process of contacting with activated carbon, inorganic and organic substances are adsorbed and removed.

The filter media installed in the 2nd filter chamber is for removing suspended solids by filtering. The filter media is rolled and installed in the flowing direction. The activated carbon is used for the final filtration of organic and inorganic substances by containing ceramics. .

The second filtering chamber has a configuration in which horizontal bulkheads are formed in two places in the vertical direction, and a filter medium and activated carbon are installed on each horizontal bulkhead.

Wastewater introduced from the settling chamber into the inner pipe is stabilized by flowing into the lower part of the second filtering chamber and then floated through a hole formed in the horizontal bulkhead, and finally processed through the filter bed and the activated carbon layer and discharged through the drain.

Hereinafter, the wastewater treatment process according to the present invention will be described in detail.

When the wastewater introduced from the GRIT CHAMBER flows into the first chamber of the first treatment tank through the inlet port 10b, the sludge is floated by the air supplied by the air pump, and the floated sludge goes to the sludge concentration chamber installed on the surface layer. Inflow and filtering prevents the sludge from being concentrated in the pre-collecting stage to prevent corruption in the sump (third chamber).

When the sludge accumulates to some extent, the sludge bag is lifted and collected. If the wastewater input amount is 4.0㎥ / day, the sludge is collected once a month to remove the concentrated sludge.

Waste water flowing into the first chamber is introduced into the second chamber through the internal pipe, and the sludge, inorganic and organic substances are removed and adsorbed by the SS adsorbent in the process of floating through the horizontal bulkhead, and the surface water of the second chamber Flows into the third chamber.

The third chamber functions as a water collecting tank, so that the decay material is removed to some extent in the process of passing through the first and second chambers, thereby maintaining a stable state without corruption.

When the wastewater flows into the third chamber and the water level is maintained to some extent, the water level sensor 33 detects this to operate the pump, and the pumped wastewater is supplied to the lower part of the first filtering chamber of the second treatment tank and filtered secondly by activated carbon. do.

Wastewater that has floated through the activated carbon in the first filtering chamber flows through the pipe and is supplied to the sedimentation chamber. In the sedimentation chamber, sludge precipitates to the bottom, and the wastewater flows into the second filtration chamber through the inner pipe.

Wastewater introduced into the filtration chamber is finally treated by filtering organic and inorganic materials through the filter media and activated carbon layers, and discharged to the outside through the drain hole in the upper part of the filtration chamber.

The sludge accumulated on the bottom of the settling chamber of the second treatment tank is discharged periodically by opening the discharge valve, and the discharged sludge is temporarily stored in the sludge storage tank and returned to the first chamber (oil-water separation chamber) of the first treatment tank for continuous operation. Done.

Preferred embodiments of the present invention having the above-described configuration at 4 m 3 / day treatment capacity are as follows.

1. First treatment tank

Total volume: 3.63㎥ (diameter 1650mm x height 1700mm)

Room 1 (Oil Separation Room): 1/2 of total volume

Room 2 (filtration room): 1/4 of total volume

Room 3 (Catchroom): 1/4 of total volume

2. First filter room

Total volume: 0.22㎥ (Width 600mm x Length 600mm x Height 600mm)

3.Secondary treatment tank

Total volume: 3.63㎥ (diameter 1650mm x height 1700mm)

Settling chamber: 3/4 of the total volume

2nd filter room: 1/4 of total volume

Filter layer and filter layer volume in the second filtration room: 0.32㎥

4. Sludge Storage Facility

Total volume: 0.124㎥

According to the above embodiment, the processing results are shown in the following table.

division Throughput pH (ppm) COD (ppm) SS (ppm) n-H (ppm) ABS (ppm) Influent wastewater 4.0㎥ / day 6-8 250 300 10 7 Effluent 5.8-8.6 33.0 23.4 0.5 0.9

The above results are obtained through the stepwise treatment process of the first treatment tank and the second treatment tank without using the wastewater treatment agent, and it can be seen that the final effluent is treated with water quality close to natural water even in the case of high pollutant wastewater.

The first treatment tank and the second treatment tank are made of FRP material, and are light and strong according to the characteristics of the FRP, and are excellent in corrosion resistance, heat resistance and corrosion resistance, and excellent in blocking light and heat conduction in the summer. By preventing corruption, it has an excellent effect on wastewater purification.

In the figure, reference numeral 34 denotes a manhole, and 35 denotes a flowmeter for measuring the discharge water flow rate.

The present invention by the above configuration can be maintained in a very high water quality standards of the final effluent by the wastewater treatment step by step, and has the effect of reusing the effluent.

In addition, the wastewater treatment is carried out by the first underground treatment tank and the second ground treatment tank, which can be applied in a narrow space, and the sludge can be collected in operation by removing and removing the sludge from the sludge concentration chamber. There is an effect to prevent corruption by, has the advantage of easy operation and maintenance is made without a separate treatment agent.

In addition, the present invention is made of FRP is not rust and exposed to the air is lighter, harder and more durable, and has excellent light and heat conduction blocking properties to prevent the decay of wastewater, excellent acid resistance, alkali resistance, corrosion resistance Compared with the existing concrete structure, construction is simple and robust, low thermal strain, excellent electrical insulation, and low risk of freezing even in winter due to cold insulation.

Claims (2)

The first treatment tank 10 is buried underground and the second treatment tank 20 is installed on the ground, the first treatment tank is equipped with a three-stage treatment chamber consisting of oil-water separation, filtration and water collection and blow and sludge concentration chamber Adsorption and removal of flotation sludge is carried out during oil separation and collection process.The second treatment tank installed on the ground is equipped with a primary filtration chamber, a sedimentation chamber and a secondary filtration chamber, and a sludge storage chamber is attached. Waste water introduced through the step of separating oil and sludge concentrated in the first chamber of the first treatment tank and the adsorption removal of organic and inorganic materials in the second chamber is collected in the third chamber, The waste water is pumped to the primary filtration chamber of the second treatment tank, filtered first, and then supplied to the sedimentation chamber to precipitate sludge, and inorganic and organic substances are adsorbed through the secondary filtration chamber. The waste water is characterized in that the final treatment water is discharged through the drainage port, and the sludge deposited in the settling chamber is discharged to the sludge storage tank through the discharge valve and then returned to the first chamber of the first treatment tank. Purifier. The first treatment tank (10) is separated into a first chamber (11), a second chamber (12), and a third chamber (13) by a vertical partition wall (10a), and partition walls of the first chamber. An inner pipe 10c connected to the second chamber is installed in the middle, and the second chamber is divided by a horizontal partition 12a having a water hole 12b and an adsorbent 14 is installed therein, and an upper layer of the first chamber. The sludge concentration chamber 15 is installed in the sludge concentration chamber, and the sludge suction pipe 15a extending to the bottom of the first chamber is coupled, and the blower 16 is coupled to the sludge suction tube so that the sludge at the bottom is sludged by air supply. It is configured to be sucked through the suction pipe to flow into the sludge concentration chamber, the second treatment tank 20 is formed with a first filter chamber 22 filled with activated carbon 21 on the outer wall side of the upper portion and the vertical bulkhead 20a therein. The sedimentation chamber 23 and the 2nd filtration chamber 24 divided | segmented by this are formed, and the 2nd filtration chamber is divided by the horizontal partition wall 24a in which the through-hole 24b was formed. The waste water purifying apparatus is characterized in that the horizontal bulkhead is filled with the filter medium (25) and activated carbon (26), the sludge storage tank 27 is formed on the lower end of the outer wall of the settling chamber.