KR200410464Y1 - Living sewage treatment system - Google Patents

Abstract

Disclosed is a sewage treatment system for improving the purification ability of domestic sewage. Methane fermentation tank equipped with a methane fermentation tank to generate gas by methanation of the added manure, and by supplying methane bacteria, which are microorganisms generated in the methane fermentation tank to activate the purification of living sewage so that the purification ability of living sewage can be improved. The living sewage treatment chamber is provided with an aeration tank communicating with the methane fermentation tank to supply methane bacteria, thereby improving the purification capacity of the living sewage and reducing the installation space of the living sewage treatment chamber.

Domestic sewage treatment room, manure treatment room, methane fermentation tank, aeration tank

Description

Sewage Treatment System {LIVING SEWAGE TREATMENT SYSTEM}

1 is a perspective view schematically showing a sewage treatment system as a first preferred embodiment of the present invention;

2 is a plan view showing a sewage treatment system as a first preferred embodiment of the present invention;

3 is a cross-sectional view showing a section “A-A” shown in FIG. 2;

4 is a cross-sectional view showing a section “B-B” shown in FIG. 2;

FIG. 5 is a cross-sectional view of a section “C-C” shown in FIG. 2;

6 is a cross-sectional view showing a through hole of a sewage treatment system as a second preferred embodiment of the present invention;

7 is a cross-sectional view showing a through hole of the sewage treatment system according to a third embodiment of the present invention;

8 is a cross-sectional view showing a through hole of a sewage treatment system as a fourth preferred embodiment of the present invention.

** Description of the symbols for the main parts of the drawings **

1: bulkhead 1a: through hole

10: sewage treatment room 12: aeration tank

20: manure treatment chamber 22: methane fermentation tank

The present invention relates to a sewage treatment system, and more particularly, to a sewage treatment system for supplying methane bacteria generated in a methane fermentation tank of a manure treatment chamber to be supplied to a domestic sewage treatment chamber to improve the purification ability.

Sewage generated in connection with human daily life is treated in sewage purification facilities, septic tanks and sewage and wastewater treatment facilities installed in homes and industries, and agricultural and sewage treatment facilities. Korea's sewage generation amounted to 15,467 thousand tons at the end of 1998, about 17,542 thousand tons in 2000, and is gradually increasing.

Sources of wastewater and wastewater related to human life are toilets, baths and kitchens in general households and restaurants. The amount of sewage generated is proportional to the amount of water used, and the main sources of sewage are the water used during flushing toilets and daily life. The amount of sewage generated continues to increase with the increase of pollutants and water supply. Since 2000, the law on sewage, manure, and livestock wastewater has regulated 10ppm regardless of the treatment capacity of sewage purification facilities.

In addition, due to industrial development, urbanization of population, and diversification of lifestyle, the demand for water is required in large quantities. In particular, recently, large-scale apartments have been intensively increased in certain areas. Most household sewage discharged from homes is transferred to sewage treatment plants, which are treated by sewage treatment plants and then discharged to discharged water.

However, only a few sewage treatment facilities currently installed in metropolitan areas can treat only a part of the whole sewage discharged, and in the process of treatment, overnutrition is caused by excessive inflow of manure. The function of the treatment facility is not working well. In addition, due to the excessive use of detergents and synthetic detergents, domestic sewage itself contains a large amount of substances that are difficult to be biologically decomposed, which is difficult to efficiently treat wastewater. In addition, in areas without sewage treatment facilities, they are directly introduced into rivers or the sea without any treatment, causing serious environmental pollution.

In order to solve this problem, a separate household sewage treatment system is installed and used to treat domestic sewage discharged from the home. However, there is a limitation in the purification ability, and if the facility of the domestic sewage treatment system is expanded to improve the purification ability, it is installed. There is a problem that space limitations and costs are increased.

The object of the present invention devised in view of the above point is to provide a sewage treatment system for supplying methane bacteria generated in the methane fermentation tank of the manure treatment chamber to the domestic sewage treatment chamber to improve the purification capability of domestic sewage.

In addition, another object of the present invention is to provide a sewage treatment system that is to recycle the purified water to toilet water by the circulation system to save the water for living.

The sewage treatment system for achieving the object of the present invention as described above is a manure treatment chamber equipped with a methane fermentation tank for generating gas by methanation of the manure injected; And supplying methane bacteria, which are microorganisms generated in the methane fermentation tank, to activate the purifying function of living sewage, so that the purification capacity of the living sewage can be improved. By being configured, it is possible to improve the purification ability of domestic sewage.

Hereinafter, with reference to the accompanying drawings, a sewage treatment system which is a first embodiment of the present invention will be described in detail.

1 is a perspective view schematically showing a sewage treatment system as a first preferred embodiment of the present invention, FIG. 2 is a plan view showing a sewage treatment system as a first preferred embodiment of the present invention, and FIG. 3 is shown in FIG. 4 is a cross-sectional view of the "AA" section, Figure 4 is a cross-sectional view of the "BB" portion shown in Figure 2, Figure 5 is a cross-sectional view of the section "CC" shown in FIG. to be.

As shown, the sewage treatment system according to the first preferred embodiment of the present invention is arranged such that the living sewage treatment chamber 10, the manure treatment chamber 20, and the food waste treatment chamber 30 form a row, and partition walls 1 and 2 are adjacent to each other. ) Is installed and partitioned into separate sections, and at least one through-hole 2a is formed in the partition wall 2 formed between the manure treatment chamber 20 and the food waste treatment chamber 30, and a living sewage treatment chamber ( 10) and the manure treatment chamber 20 is also partly in communication.

The living sewage treatment chamber 10 is divided into an input tank 11 in which an input port 11a for inputting living sewage is formed at an upper end, and a separate space in which one side of the input tank 11 is in contact with the input tank 11. The first aeration tank 12 for aeration of the introduced living sewage and the first aeration tank 12 are separated into a separate space in contact with one side, and the first aeration tank 12 communicates with the aeration to receive the living sewage Sludge removal tank 13 for sedimenting and removing sludge contained in sewage, and sewage sludge removal tank 13 is divided into separate spaces in contact with one side, and sludge is removed and the sludge is removed. Activated carbon (not shown), which is divided into a second aeration tank 14 to receive a second aeration and the second aeration tank 14 and a separate space in contact with one side and communicate with the second aeration tank 14 and are filled therein. After purifying sewage using It consists of a discharge tank 15 for discharging the domestic wastewater to the outside. One end of the communication tube 12a communicating the input tank 11 and the first aeration tank 12 communicates with the upper end of the input tank 11 and the other end communicates with the lower end of the first aeration tank 12 so as to communicate with the input tank ( 11) The living sewage of the upper end is moved to the lower end of the first aeration tank 12. One end of the communication tube 13a communicating the first aeration tank 12 and the sludge removal tank 13 communicates with the upper end of the first aeration tank 12, and the other end communicates with the lower end of the sludge removal tank 13 so as to communicate with the first end. The living sewage at the upper end of the aeration tank 12 is moved to the lower end of the sludge removal tank 13. One end of the communication tube 14a communicating the sludge removal tank 13 and the second aeration tank 14 communicates with the upper end of the sludge removal tank 13 and the other end communicates with the lower end of the second aeration tank 14 to be sludge. The living sewage of the upper end of the first tank 13 is moved to the lower end of the second aeration tank 14. One end of the communication tube 15a communicating the second aeration tank 14 and the discharge tank 15 communicates with the upper end of the second aeration tank 14, and the other end communicates with the lower end of the discharge tank 15 so as to communicate with the second aeration tank. (14) The household wastewater of the upper end is moved to the lower end of the discharge tank 15. In addition, the living sewage chamber 10 is preferably each of the input tank 11, the first aeration tank 12, the sludge removal tank 13, the second aeration tank and the discharge tank 15 is arranged in a line, It is in communication with the aeration tank 12 and the methane fermentation tank of the manure processing chamber 20 which will be described later.

The bottom surface 13b of the sludge removal tank 13 is formed of an inclined surface inclined by a predetermined angle in the lateral direction, and the sludge suction passage in which the sludge precipitated is collected by gravity at the end of the inclined bottom surface 13b ( 16 is formed, the sludge suction passage 16 is equipped with a suction pump (16a) for sucking the sludge sediment, one side is connected to the suction pump (16a) and the other side is connected to the upper end of the input tank (11) A conveying pipe 16b for conveying sludge is formed.

The discharge tank 15 is equipped with a supply pipe 17b and a pump 17a for supplying a part of the purified sewage to the flush toilet, and a drainage path (not shown) for discharging the rest to the outside.

The manure treatment chamber 20 is divided into an acid tank 21 in which an inlet 21a for injecting manure is formed at an upper end and a separate space in which the acid tank 21 is in contact with one side thereof and is in contact with the acid tank 21. The methane fermentation tank 22, which is connected through the communication port 22a formed at the lower end and methanated to generate gas by methanation, is divided into separate spaces in which one side is in contact with the methane fermentation tank 22, and the methane fermentation tank ( 22) the sedimentation tank 23 which communicates through the communication port 23a formed at the lower end of the contact surface and precipitates the manure that is introduced by methanation, and foreign matters contained in the sediment water generated in the sedimentation tank 23 are installed therein. It consists of a filtration tank (not shown) filtered out by a filter, and a storage tank (not shown) which circulates the treated water filtered again through the filtration tank. The acid tank 21, the methane fermentation tank 22 and the settling tank 23 are preferably arranged in a line, and the bottom surface thereof is formed to be inclined so as to become lower and lower toward the settling tank 23. In addition, a through hole 1a is formed in the partition wall 1 in which the first aeration tank 12 and the first methane fermentation tank 22 contact each other to communicate the first aeration tank 12 and the methane fermentation tank 22. As described above, in order to communicate the first aeration tank 12 and the methane fermentation tank 22, it is preferable to form a through hole 1a in the partition wall 1, but the first aeration tank 12 and the methane fermentation tank 22 are far from each other. If they are spaced apart, they may be connected via a connector.

The food waste treatment chamber 30 is arranged side by side so as to be symmetrical with the partition wall 2 therebetween so as to have the same shape as the manure treatment chamber 20 such as the acid tank 31, each methane fermentation tank 32, and the precipitation tank 33. At least one through hole 2a is formed in the partition wall 2 between the manure processing chamber 20 and the food waste treatment chamber 30. At this time, the through hole (2a) is preferably formed between the methane fermentation tank 22 of the manure treatment chamber 20 and the methane fermentation tank 32 of the food waste treatment chamber (30).

The operation of the sewage treatment system which is the first preferred embodiment of the present invention configured as described above is as follows.

First, when the collected manure is introduced through the inlet 21a, the introduced manure falls into the acid tank 21. The manure that is dropped and stored in the acid tank 12 is hydrolyzed while staying in the acid tank 12 and then moved to the methane fermentation tank 22 through the communication port 22a. Starch, sugars, proteins, fats, fibers, etc. contained in the manure moved to the methane fermentation tank 22 are liquefied into soluble low molecular organics by decomposing microorganisms, and the liquefied organic matter is methane, carbon dioxide, Gasified with ammonia gas. Gasified methane gas, carbon dioxide gas, ammonia gas, etc. are discharged to the outside through the discharge pipe 24 formed to penetrate to the outside of the methane fermentation tank 22 to the outside. And the methanated manure while passing through each methane fermentation tank 22 is moved to the settling tank 23 through the communication port (23a), and the settling water moved to the settling tank (23) again through the inlet ( 11) will be recycled again.

Similarly, the food waste treatment chamber 30 formed side by side of the manure treatment chamber 20 is collected after the collected food waste is introduced through the inlet 31a, the acid tank 31, as in the treatment process of the manure treatment chamber 20, While passing through the methane fermentation tank 32 and the settling tank 33, methane gas, carbonated water, ammonia gas, etc. are discharged to the outside through the discharge pipe 34 formed to penetrate to the upper end of the methane fermentation tank 32, and the precipitated water is again It is injected into the inlet 21 and recycled.

At this time, when the manure is continuously added to the manure processing chamber 20 to a certain level or more, liquefied liquefied organic matter is introduced into the methane fermentation tank 32 of the food waste treatment chamber 30 through the through hole (1a). In addition, the liquefied organic matter introduced into the methane fermentation tank 32 is mixed with food waste to activate methanation of food waste. That is, the liquefied organic matter liquefied by methane is introduced into the food waste treatment device 30 to activate the methanation of food waste to promote decomposition.

This is because methanation of the manure proceeds faster than the food waste, and fermentation is good, so that the liquefied organic matter on the side of the manure processing device is put into the food waste to promote methanation of the food waste.

In the household sewage treatment chamber 10, when the collected household sewage is introduced through the inlet 11a, the introduced household sewage falls into the input tank 11. The living sewage dropped into the input tank 11 is disassembled while staying in the input tank 11, and then is moved to the first aeration tank 12 through the communication pipe 12a. By supplying oxygen to the living sewage moved to the first aeration tank 12, microorganisms present in the sewage decompose the organic nutrients present in the sewage through aerobic respiration to lower the BOD. At this time, the methane bacteria and many microorganisms produced in the methane fermentation tank 22 are supplied into the first aeration tank 12 through the through hole 1a to actively decompose organic nutrients. And the living sewage aerated in the first aeration tank 12 is moved to the sludge removal tank 13 through the communication pipe (13a). Sedimentation of sludge contained in domestic sewage is generated in the sludge removal tank 13, and the precipitated sludge is slid along the inclined bottom surface 13b by gravity and collected into the sedimentation chamber 16. The sludge collected in 16 is sucked by the pump 16a and fed back into the feed tank 11 through the transfer pipe 16b. After the sludge is removed, the living sewage is guided to the second aeration tank 14 through the communication pipe 14a to perform a second aeration as in the first aeration tank 12, and then the discharge tank 15 through the communication pipe 15a. Is supplied. Purification of household sewage is completed by the activated carbon filled in the discharge tank 15. Part of the living sewage that has been purified is supplied to the flush toilet through the supply pump 17a and the supply pipe 17b, and is recycled to the toilet water of the flush toilet and the rest is discharged to the outside through a drainage channel (not shown).

Similarly, the sewage treatment apparatus according to the second preferred embodiment of the present invention is equipped with a strainer 25 having a predetermined mesh in the through hole 2a, so that the food residues having a large particle, etc. It is characterized in that the backflow is prevented, and the structure and action other than the filter net 25 is additionally installed in the through hole (2a) is the same as the first preferred embodiment of the present invention.

Similarly, in the sewage treatment apparatus according to the third embodiment of the present invention, as shown in FIG. 7, the methane fermentation tank 32 of the food waste treatment chamber 30 has a barrier wall 26 having an area that covers the through hole 2a. Is formed on one side of the partition wall (2) in contact with the direction, and the gap between the partition wall (2) and the barrier wall (26) is such that large particles of food are introduced into the methane fermentation tank (22) of the manure treatment chamber (20). To prevent them. The structure and action of the penetrating hole 2a except that the barrier wall 26 is additionally installed are the same as in the first preferred embodiment of the present invention.

In addition, the barrier wall 26 installed in the third preferred embodiment of the present invention and the strainer 25 installed in the second preferred embodiment of the present invention may be installed at the same time.

Similarly, the sewage treatment apparatus according to the fourth embodiment of the present invention has one side end hinged to the upper end of one side of the partition wall 2 which is in contact with the methane fermentation tank 32 of the food waste treatment chamber 30 as shown in FIG. 8. The blocking door 27 is mounted, and the liquefied organic matter of the methane fermentation tank 22 is rotated only in the direction of the methane fermentation tank 32 in a state in which the blocking door 27 is in contact with the partition wall 2. Is introduced into the methane fermentation tank 32, the reverse inflow from the methane fermentation tank 32 is to be prevented. That is, the liquefied organic matter liquefied by methanation is introduced into the methane fermentation tank (32) of the food waste treatment chamber (30) by rotating the blocking door (27). By 27, the methane fermentation tank 22 of the manure treatment chamber 20 is not introduced.

As described above, in the sewage treatment system according to the present invention, methane bacteria and other microorganisms generated in the methane fermentation tank 22 of the manure treatment chamber 20 are supplied into the first aeration tank 12 through the through holes 1a to provide organic nutrients. By promoting decomposition, the BOD level can be lowered to improve the purification of sewage. In addition, the purified household sewage can be recycled to the water of the flush toilet, it is possible to save about 30% of the water used in living.

In addition, by filtering the sludge contained in the domestic sewage in the sludge removal tank 13, and then re-introduced again into the input tank 11 it is to increase the purification rate of domestic sewage.

As described above, the sewage treatment system according to the present invention is formed by connecting the methane fermentation tank formed in the manure treatment chamber and the aeration tank of the domestic sewage treatment chamber to supply the methane bacteria or microorganisms generated in the methane fermentation tank to the aeration tank, thereby containing organic It promotes the decomposition of nutrients, so that the purification ability is improved.

In addition, since the purification ability is improved by methane bacteria or microorganisms supplied from the methane fermentation tank, the sewage treatment room occupies a small installation space, thereby overcoming the limitations of the installation space and reducing the installation cost.

In addition, since the purified sewage can be recycled as water in a flush toilet, there is a water saving effect of living water.

Claims (7)

A manure treatment chamber equipped with a methane fermentation tank for generating gas by methanation of the put manure; And A living sewage treatment chamber equipped with an aeration tank connected to the methane fermentation tank to receive methane bacteria so that the purification ability of living sewage can be improved by supplying methane bacteria, which are microorganisms generated in the methane fermentation tank, to activate the purification function of living sewage; Sewage treatment system comprising a. According to claim 1, wherein the sewage treatment chamber An input tank into which household sewage is injected; A first aeration tank communicated with the input tank to receive a supply of household wastewater and to communicate with the methane fermentation tank; A sludge removal tank communicating with the first aeration tank to receive the aerated live sewage, to settle the sludge contained in the live sewage, and to re-inject the precipitated sludge into the input tank; A second aeration tank communicating with the sludge removal tank and receiving aeration for receiving sewage-removed sewage; And And a discharge tank communicating with the second aeration tank and filled with activated carbon to purify the household sewage and discharge the purified domestic sewage to the outside. According to claim 2, The sewage treatment chamber, The sewage treatment system is formed in contact with one side of the manure treatment chamber and partitioned into a separate space by the partition wall, the through-hole is formed in the partition wall of the portion where the methane fermentation tank and the first aeration tank contact. 3. The sewage treatment system according to claim 2, wherein both ends of the methane fermentation tank and the first aeration tank are connected to each other by a connecting tube communicating with the methane fermentation tank and the first aeration tank. According to claim 2, The bottom surface of the sludge removal tank is made of an inclined surface so that the sludge is settled in one direction by gravity, a sludge suction path is formed at the lower end of the inclined surface, the one end of the sludge suction passage A suction pump for sucking sludge is mounted, and the suction pump is equipped with a conveying pipe for guiding suctioned sludge to the injection tank. According to any one of claims 1 to 5, wherein the manure treatment chamber An acid tank in which an inlet for injecting manure is formed; Methanol fermentation tank to methanate the manure supplied in communication with the acid tank to generate a hydrolysis; And Sewage treatment system comprising; a sedimentation tank for precipitating the liquefied organic matter liquefied. The method of claim 6, wherein the other side of the manure treatment chamber, Forming a food waste treatment chamber consisting of an acid tank formed with an inlet for feeding food waste, a methane fermentation tank that methaneizes the food waste received in communication with the acid tank to generate gas, and a precipitation tank for precipitating the liquefied liquefied organic matter methanated. The sewage treatment chamber and the food waste treatment chamber are partitioned into separate spaces by a partition wall, and a through hole is formed in the partition wall located between the methane fermentation tank and the food waste treatment chamber of the manure treatment chamber.

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