KR101289020B1 - Apparatus for recycling waste toilet water and method for recycling waste toilet water using the same - Google Patents

Abstract

PURPOSE: A water recycling device for a bathroom and a water recycling method using the same are provided to save the cost required to run a facility with a bathroom by recycling wastewater in the bathroom. CONSTITUTION: A water recycling device for a bathroom consists of a first storage bath (110), a first filtering unit (120), a second filtering unit (130), an ultraviolet ray treating unit (140), a chlorine injecting unit (150), and a second storage bath (160). The first storage bath receives and collects wastewater from a basin. The first filtering unit includes a through hole based on a glass fiber, and the inside of the through hole is filled with activated carbon. The activated carbon is periodically replaced by opening and closing the upper side of the through hole. The second filtering unit includes a filtering membrane filter with micropores of 0.05-0.4 μm. The second storage bath receives and stores wastewater through the chlorine injecting unit. Flowing channels (170,180,190,200,210) connect components in the device. One or more flowing channels include connecting pumps (220) and valves (230) in order to prevent the flux of wastewater from reducing.

Description

Apparatus for recycling waste toilet water and method for recycling waste toilet water using the same}

The present invention relates to a wastewater recycling apparatus for a toilet and a wastewater recycling method using the same, and more particularly, a wastewater recycling apparatus for recycling wastewater discharged from a toilet sink to effectively remove and remove dissolved pollutants and various bacteria. It relates to a waste water recycling method for the toilet using the same.

Since many people gather in places such as parks, buildings, and sports facilities in large cities (or tourist destinations), large amounts of water are used in the restrooms installed in the places. In this case, if the tap water or the like is used indiscriminately without using a special device or system, a huge amount of water is used, and the operating cost of the corresponding facility is rapidly increased.

In particular, the water supplied to the wash basin contains soap, which is a surfactant, and is discharged without effort of recycling despite the absence of great pollution.

Although several apparatuses and processes have been known in the related art regarding a water treatment system for recycling water discarded from a toilet, these have limitations in commercialization.

As a prior art document to solve the problems related to this, Korean Patent Laid-Open Publication No. 10-2004-0018102 (Patent Document 1) discloses the contents of a water recycling apparatus for a toilet having a supply chamber and a reaction chamber. And a recycling system having an air supply chamber, a reaction chamber, a water tank, and a plurality of pumps, wherein the air supply chamber and the reaction chamber contain a plurality of specially treated wood chips therein, and A technique is disclosed in which biological aggregates composed of bacteria are induced on wood chips.

In addition, the Republic of Korea Patent No. 10-0225966 (Patent Document 2) is known about the flush toilet using the domestic waste water discharged from the wash basin, sink or bath tub as a wash water of the flush toilet, the recycle water is not exhausted It is a technical feature to use domestic wastewater only to allow tap water to be used as wash water for flushing toilets.

Despite the techniques disclosed in these prior art documents, there is still a problem that a lot of efforts and costs are involved in recycling toilet waste water.

Patent Document 1. Republic of Korea Patent Publication No. 10-2004-0018102 Patent Document 2. Republic of Korea Patent No. 10-0225966

The present invention has been made to solve the above problems, an object of the present invention is to recycle the waste water generated in the toilet wash basin to the toilet water without recycling to the outside of the toilet as it is for toilets and toilets using the same It is to provide a waste water recycling method.

Waste water recycling apparatus for a toilet according to a feature of the present invention for solving the above problems is

A first storage tank for introducing and collecting wastewater used in the sink;

Comprising a through-hole of a glass fiber material, including the activated carbon in the through hole, the activated carbon is replaceable, the replacement of the activated carbon is characterized in that the replacement periodically by opening and closing the upper portion of the through hole 1 filter part;

A second filtration unit comprising a filtration membrane filter including pores of 0.05 to 0.4 µm;

UV treatment for sterilizing Escherichia coli and pathogenic microorganisms in the wastewater passing through the second filter;

Chlorine injection unit for maintaining the remaining chlorine and further disinfection through the chlorine injection of the waste water passing through the ultraviolet treatment unit;

A second storage tank for collecting and storing the wastewater that has passed through the chlorine injection unit;

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A first flow channel through which the wastewater moves while connecting the first reservoir and the first filter;

A second flow channel through which the wastewater moves while connecting the first filtration unit and the second filtration unit;

A third flow channel through which the wastewater moves while connecting the second filtration unit and the ultraviolet treatment unit;

A fourth flow channel through which the wastewater moves while connecting the UV treatment unit and the chlorine injection unit;

A fifth flow channel through which the wastewater moves while connecting the chlorine injection unit and the second reservoir;

It is made to include more,

At least one selected from the group consisting of the first flow channel, the second flow channel, the third flow channel, the fourth flow channel, and the fifth flow channel is provided with a connection pump and a valve for maintaining the flow rate of the waste water not to be reduced. Characterized in that,

First and second connecting portions connecting both the first reservoir and the first filter to both sides of the first flow channel;

Third and fourth connection parts connecting the first and second filter parts to both sides of the second flow channel;

Fifth and sixth connection parts connecting the second filtration part and the ultraviolet light treatment part to both sides of the third flow channel;

A seventh connection part and an eighth connection part which connect the UV treatment part and the chlorine injection part to both sides of the fourth flow channel;

Ninth and tenth connection parts connecting the chlorine injection part and the second reservoir to both sides of the fifth flow channel;

And further comprising:

In addition, the through hole of the first filtering portion is characterized in that the height of 1,300 ~ 2,000mm, the diameter of the through hole is characterized in that 300 ~ 600, the material of the glass fiber material is glass fiber reinforced plastic (glass fiber reinforced plastic, FRP), and the capacity of the activated carbon is characterized in that 30 ~ 100L per time.

In addition, the filter membrane filter of the second filtration unit is characterized in that the material is C-PVC (Polyvinyl chloride) or polysulfone (Polysulfone), the area is 3 ~ 10㎡, the size is 300 ~ 1000㎜L Ⅹ 100 ~ 500㎜ Ø, pure permeate flow rate is characterized in that 300 ~ 800 LMH.

In addition, the second filtration unit is characterized in that it further comprises a housing (tank), 30 ~ 50A connector (connector, IN / OUT) and a pressure gauge.

Waste water recycling method for a toilet according to another aspect of the present invention is characterized in that the waste water discharged after being used in the wash basin is recycled to the water of the toilet using the waste water recycling apparatus for the toilet according to the present invention.

Wastewater recycling apparatus for toilets and a wastewater recycling method using the same according to the present invention has the effect of greatly reducing the operating cost of the facility in which the toilet is operated by recycling the wastewater generated in the toilet sink to the toilet. In addition, it can contribute to resource saving, and in a simple way, it can protect and improve water quality.

1 is a view showing a wastewater recycling apparatus for toilets according to the present invention.
2 is a photograph showing a first filter part.
3 is a cross-sectional view of the first filter part.
4 is a photograph showing a state in which the filtration membrane filter of the second filtration unit is combined with the support.
5 is a view showing a second filter part.
6 is a diagram illustrating an ultraviolet treatment unit.

Accordingly, the present inventors have made intensive studies to develop an apparatus and a method for recycling wastewater for toilets, and thus, the present invention has been completed regarding a wastewater recycling apparatus for toilets and a wastewater recycling method for the toilet using the same.

In general, washrooms and toilets are installed in toilets installed in places that many people visit, such as parks, sports facilities, buildings, and tourist attractions. In addition, the water used in the wash basin and the toilet is actually supplied separately without considering the circulation and recycling by any system or device. Thus, the present invention has been devised to improve this.

Specifically, the wastewater recycling apparatus for toilet according to the present invention is as shown in FIG.

A first reservoir 110 which collects and collects wastewater used in the sink;

It includes a through-hole 340 of glass fiber material, and includes activated carbon 350 in the interior of the through-hole, the activated carbon is replaceable, the replacement of the activated carbon to periodically open and close the upper portion of the through-hole First filtration unit 120, characterized in that;

Second filtration unit 130, characterized in that it comprises a filter membrane and a filter containing pores of 0.05 ~ 0.4㎛;

UV treatment unit 140 for sterilization of Escherichia coli and pathogenic microorganisms in the wastewater passing through the second filter;

Chlorine injection unit 150 to further disinfect and maintain residual chlorine through the chlorine injection of the waste water passing through the ultraviolet treatment unit;

A second storage tank 160 for collecting and storing the wastewater that has passed through the chlorine injection unit;

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A first flow channel 170 through which wastewater moves while connecting the first reservoir and the first filter unit;

A second flow channel 180 through which the wastewater moves while connecting the first filter unit and the second filter unit;

A third flow channel 190 through which the wastewater moves while connecting the second filtration unit and the ultraviolet treatment unit;

A fourth flow channel 200 through which the wastewater moves while connecting the UV treatment unit and the chlorine injection unit;

A fifth flow channel 210 to which the wastewater moves while connecting the chlorine injection unit and the second reservoir;

It is made to include more,

One or more selected from the group consisting of the first flow channel, the second flow channel, the third flow channel, the fourth flow channel and the fifth flow channel is connected to the pump 220 and the valve to maintain the flow rate of the waste water not to decrease ( 230 is attached, characterized in that

First and second connection parts 240 and 250 connecting the first reservoir and the first filter to both sides of the first flow channel;

Third and fourth connection parts 270 and 270 connecting the first filtration part and the second filtration part to both sides of the second flow channel;

A fifth connection part 280 and a sixth connection part 290 connecting the second filtration part and the UV treatment part to both sides of the third flow channel;

A seventh connection part 300 and an eighth connection part 310 connecting both the UV treatment part and the chlorine injection part on both sides of the fourth flow channel;

A ninth connection part 320 and a tenth connection part 330 connecting the chlorine injection part and the second reservoir to both sides of the fifth flow channel;

And further comprising:

The first reservoir serves to store the water used in the bathroom sink without releasing it to the outside of the bathroom. Therefore, the wastewater used in the wash basin is stored in the first reservoir by moving through a connection channel enabling movement to the first reservoir.

The waste water stored in this way is water used in the wash basin, which is used for washing and washing, as well as secretions such as human sweat, and corresponds to water contaminated by decomposing various surfactants. Such wastewater is not as contaminated as wastewater for factories, but is in poor condition such as water quality for recycling and reuse.

Wastewater stored in the first reservoir moves to the first flow channel to reach the first filtration unit.

The first filter was used in the wash basin, and serves to primarily filter the wastewater contaminated with human secretions such as sweat and surfactants. In this case, the first filtering part includes a through hole of the glass fiber material. The glass fiber material is specifically made of a material of glass fiber reinforced plastic (FRP). In addition, the height of the through hole is preferably 1,300 ~ 2,000mm. In addition, the inside of the through-hole includes activated carbon, and the activated carbon primarily plays a role of filtration of dissolved pollutants such as human secretions or surfactants such as sweat or runny nose contained in the wastewater. Filtration by the activated carbon is by adsorption. In addition, the activated carbon is replaceable as a capacity of 30 ~ 100L per time. The activated carbon is very excellent in adsorption property, and is produced by treating wood and lignite with chemicals such as zinc chloride and drying. The activated carbon is strongly adsorptive, and most of the constituent materials are carbonaceous materials. Specific manufacturing methods are made by treating wood, lignite, peat, etc. with a activator such as zinc chloride or phosphoric acid to dry them or by activating charcoal with water vapor. The activated carbon is replaced by opening and closing an upper portion of the through hole made of glass fiber material. Therefore, the first filtration part is formed by cutting the upper part including the lid part 360 for opening and closing of the through hole, and the lid part forms a screw thread on the inner circumferential surface thereof and is screwed with the screw thread formed at the upper end of the first filtration part. It is preferable to open and close. 2 is a photograph showing the first filter part, and FIG. 3 is a cross-sectional view of the first filter part.

Wastewater primarily filtered by the first filter is moved to the second filter (FIG. 5) by moving the second flow channel. The second filtration unit is to filter the wastewater using a filtration membrane filter (FIG. 4) combined with the support. The second filtration unit sufficiently removes general bacteria and E. coli present in the wastewater to change to the water quality required for the use of the toilet. In addition, the filter membrane filter preferably has a pore size of 0.05-0.4㎛ to perform the filtration through it. If the pore size is less than 0.05 μm, the flow rate and the filtration rate are drastically reduced, which is not preferable. If the pore size exceeds 0.4 μm, it is difficult to achieve sufficient filtration effect, which is not preferable.

In addition, the material of the filtration membrane filter is not particularly limited as long as it is sufficient to remove ordinary bacteria and E. coli, it is preferable to use C-PVC (Polyvinyl chloride) or polysulfone (Polysulfone). In addition, the filter membrane filter is preferably combined with the support to perform the filtration in the second filtration unit.

Meanwhile, the area of the filtration membrane filter is not particularly limited, but is preferably 3 to 10 m 2. When the area of the filtration membrane filter is less than 3 m 2, sufficient filtration effect cannot be achieved, which is not preferable. When the area of the filtration membrane filter exceeds 10 m 2, the space is inefficiently occupied, which is not preferable. In addition, the pure permeate flow rate of the filtration membrane filter is preferably 300 to 800 LMH. When the pure permeate flow rate is less than 300 LMH, the filtration time is excessively uneconomical, and the pure permeate flow rate exceeds 800 LMH. It is not preferable because it can overload the filtration membrane filter and shorten the life.

In addition, the size of the filtration membrane filter included in the second filtration unit is not particularly limited, but 300 to 1,000 mm L L 100 to 500 mm Ø is preferable because it achieves a sufficient filtration effect and is not greatly influenced by spatial limitations. . In addition, the filter membrane filter can be replaced periodically.

In addition, the second filter is preferably characterized in that it further comprises a housing (tank), a connector (IN / OUT) and a pressure gauge of 30 ~ 50A. The upper part of the housing is provided with a pressure gauge, the pressure is displayed on the panel of the pressure gauge, and when a certain pressure is reached, a buzzer sounds for an administrator to recognize. Then, the filter membrane filter is separated and then prepared in advance. Can be replaced with a filter. In addition, the replaced filtration membrane filter is preferably reused after immersed in the washing solution of NaOCl 0.2 ~ 1.0% after cleaning.

On the other hand, the ultraviolet treatment unit (FIG. 6) can sterilize Escherichia coli and pathogenic microorganisms using ultraviolet rays, and can be recycled into more improved water wastewater. In addition, the method of treating ultraviolet rays in the ultraviolet treatment unit 140 is not particularly limited, the ultraviolet rays may be treated by all known methods applied in the art.

In addition, the chlorine injection unit 150 serves to achieve additional disinfection effect and residual chlorine by inputting chlorine. In addition, the method of injecting chlorine in the chlorine injection unit is not particularly limited, it may be added by any known method applied in the art.

On the other hand, the second reservoir is a space that is finally collected to recycle the wastewater filtered through the first filtration unit, the second filtration unit, the ultraviolet treatment unit and the chlorine injection unit. The second reservoir is not particularly limited in its material or size as long as it is sufficient to collect the wastewater.

Meanwhile, the wastewater recycling apparatus for toilets according to the present invention includes a first flow channel through which wastewater moves while connecting the first reservoir and the first filter, and a wastewater moving while connecting the first and second filters. A second flow channel connecting the second filtration unit and the UV treatment unit, and a third flow channel through which the waste water moves, a fourth flow channel through which the waste water moves while connecting the UV treatment unit and the chlorine injection unit, and the chlorine injection unit and the third flow channel. And a fifth flow channel through which the wastewater moves while connecting the two reservoirs.

In addition, any one or more selected from the group consisting of the first flow channel, the second flow channel, the third flow channel, the fourth flow channel and the fifth flow channel is attached with a connection pump and a valve for maintaining the flow rate of the waste water not to decrease. Characterized in that made.

The connection pump and the valve serves to maintain the water pressure is reduced as the amount of waste water used in the first reservoir is reduced to reduce the flow rate. Therefore, all the connection pumps and valves known in the art can be applied to the connection pumps and valves so that the flow rate can be maintained without decreasing.

In addition, the connection pump allows the formation of the flow rate in the first filtration unit and the maintenance of the formed flow rate.

On the other hand, both sides of the first flow channel is coupled to the first connecting portion and the second connecting portion connecting the first reservoir and the first filter to prevent the outflow of waste water.

In addition, both sides of the second flow channel are coupled to the third connecting portion and the fourth connecting portion connecting the first filter portion and the second filter portion to prevent the outflow of wastewater.

In addition, both sides of the third flow channel is coupled to the fifth connecting portion and the sixth connecting portion connecting the second filtration unit and the UV treatment unit to prevent the outflow of waste water.

In addition, both sides of the fourth flow channel are coupled to the seventh connection portion and the eighth connection portion connecting the UV treatment portion and the chlorine injection portion to prevent the outflow of waste water.

In addition, both sides of the fifth flow channel are coupled to the ninth connection portion and the tenth connection portion connecting the chlorine injection portion and the second reservoir to prevent the outflow of waste water.

Waste water recycling method for a toilet according to another aspect of the present invention is characterized in that the waste water discharged after being used in the wash basin is recycled to the water of the toilet using the waste water recycling apparatus for the toilet according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Experimental Example : Water quality improvement measurement experiment

The experiment was performed to measure the respective values with the recycled water treated using the toilet wastewater recycling apparatus according to the present invention and the toilet wastewater recycling method using the same. This experiment was conducted at Ulsan Ganjeolgot, Ulsandong-gu Mongdol, and Chungju Daegami Restroom. In addition, in Table 1 below, the 'flush toilet standard' shows the water quality standards for each water use and the level measurement of used wastewater, the Act on the Promotion and Support of Water Reuse. It shows the results of the experiment in the US toilet. In this experiment, pH was used for pH meter and BOD was used for Winkler azide modification. In addition, COD was measured using an acidic 100 ° C. potassium permanganate method, color was measured by absorbance spectroscopy, and appearance and smell were measured by sensory method. In addition, the coliform count was measured using an in vitro method, and residual chlorine was used for the O-tolidine method. Turbidity was also measured using a turbidimeter.

division pH BOD COD Chromaticity Exterior smell Escherichia coli Residual chlorine Turbidity Flush Toilet Standard 5.8 to 8.5
10mg / L
20mg / L
20 degrees or less
No discomfort No unpleasant smell
Not detected-100 ml
0.2mg / L or more
2 NTU or less Wastewater 6.5 22.2 17.5 14 has exist has exist 200 Not detected 33.9

division pH BOD
(Mg / L) COD
(Mg / L) Chromaticity Exterior smell Escherichia coli
(Ml) Residual chlorine
(Mg / L) Turbidity
(NTU) Ganjeolgot 6.2 0.4 0.5 3 none none Not detected 3.0 0.31 Mongdol 6.0 0.3 0.2 2 none none Not detected 4.0 0.46 A gill 6.9 7.2 4.6 12 none none Not detected 0.26 1.60

As can be seen in Table 2, in the case of recycled water treated using a wastewater recycling apparatus for a toilet according to the present invention and a wastewater recycling method for a toilet using the same, any toilet may be used in all fields than 'flush toilet standard' and wastewater. It was confirmed to show excellent measured values. Through this, when the wastewater is recycled using the wastewater recycling apparatus for the toilet and the wastewater recycling method for the toilet using the same, it was confirmed that the production of recycled water with improved water quality is possible. In addition, it was confirmed that the use of toilet water can be drastically reduced, thereby significantly reducing the operation cost of the facility.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It is natural.

110: first reservoir
120: first widow
130: second widow
140: UV treatment unit
150: chlorine injection unit
160: second reservoir
170: first flow channel
180: second flow channel
190: third flow channel
200: fourth flow channel
210: fifth flow channel
220: connection pump
230: valve
240: first connection portion
250: second connection portion
260: third connection portion
270: fourth connection
280: fifth connection portion
290: sixth connector
300: seventh connection portion
310: eighth connection
320: ninth connector
330: tenth connection portion
340 through hole
350: activated carbon
360: lid

Claims (5)

A first storage tank for introducing and collecting wastewater used in the sink;
Comprising a through-hole of a glass fiber material, including the activated carbon in the through hole, the activated carbon is replaceable, the replacement of the activated carbon is characterized in that the replacement periodically by opening and closing the upper portion of the through hole 1 filter part;
A second filtration unit comprising a filtration membrane filter including pores of 0.05 to 0.4 µm;
UV treatment for sterilizing Escherichia coli and pathogenic microorganisms in the wastewater passing through the second filter;
Chlorine injection unit for maintaining the remaining chlorine and further disinfection through the chlorine injection of the waste water passing through the ultraviolet treatment unit;
A second storage tank for collecting and storing the wastewater that has passed through the chlorine injection unit;
Including;
A first flow channel through which the wastewater moves while connecting the first reservoir and the first filter;
A second flow channel through which the wastewater moves while connecting the first filtration unit and the second filtration unit;
A third flow channel through which the wastewater moves while connecting the second filtration unit and the ultraviolet treatment unit;
A fourth flow channel through which the wastewater moves while connecting the UV treatment unit and the chlorine injection unit;
A fifth flow channel through which the wastewater moves while connecting the chlorine injection unit and the second reservoir;
Further comprising:
At least one selected from the group consisting of the first flow channel, the second flow channel, the third flow channel, the fourth flow channel, and the fifth flow channel is provided with a connection pump and a valve for maintaining the flow rate of the waste water not to be reduced. Characterized in that,
First and second connecting portions connecting both the first reservoir and the first filter to both sides of the first flow channel;
Third and fourth connection parts connecting the first and second filter parts to both sides of the second flow channel;
Fifth and sixth connection parts connecting the second filtration part and the ultraviolet light treatment part to both sides of the third flow channel;
A seventh connection part and an eighth connection part which connect the UV treatment part and the chlorine injection part to both sides of the fourth flow channel;
Ninth and tenth connection parts connecting the chlorine injection part and the second reservoir to both sides of the fifth flow channel;
Waste water recycling apparatus for the toilet, characterized in that further comprises.
The method of claim 1,
The through hole of the first filtration portion is characterized in that the height of 1,300 ~ 2,000mm, the diameter of the through hole is characterized in that 300 ~ 600, the material of the glass fiber material is glass fiber reinforced plastic (FRP) A waste water recycling apparatus for a toilet, characterized in that the capacity of the activated carbon is 30 ~ 100L per time.
The method of claim 1,
The filter membrane filter of the second filtration unit is characterized in that the material is C-PVC (Polyvinyl chloride) or polysulfone (Polysulfone), the area is 3 ~ 10㎡, the size is 300 ~ 1000㎜L Ⅹ 100 ~ 500㎜Ø And, the pure water permeation rate of the waste water recycling apparatus for the toilet, characterized in that 300 ~ 800 LMH.
The method of claim 1,
The second filtration unit is a housing (tank), 30 ~ 50A connector (connector, IN / OUT) and the pressure gauge further comprises a waste water recycling apparatus for the toilet.
A method for recycling wastewater for toilets, characterized in that the wastewater discharged after being used in a bathroom sink is recycled to water in a toilet using the wastewater recycling apparatus for toilets according to any one of claims 1 to 4.

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