KR200228813Y1 - Waste water treating system - Google Patents

Abstract

The present invention relates to a wastewater treatment system for treating sludge wastewater, such as wastewater or livestock, which is discharged from various industrial sites or livestock farms. More specifically, the reactor (1), solid-liquid separator (2), and pressurization tank ( 3) In the wastewater treatment system comprising the aeration tank 4, the settling tank 5, the ozone contact tank 6, the discharge tank 8, the discharge tank 8 and the settling tank 5 From the aeration tank 4, the transfer pipes 100 and 200 with the transfer pumps 101 and 201 are attached to the aeration tank 4, respectively, and the concentration change according to the raw water flowing into the aeration tank 4 is adjusted. It is a wastewater treatment system that increases the efficiency of wastewater treatment by maintaining a constant concentration of discharged water discharged through a treatment step up to the discharge tank 8 which is the final stage of wastewater treatment.

Description

Wastewater Treatment System {WASTE WATER TREATING SYSTEM}

The present invention relates to a wastewater treatment system for treating sludge wastewater such as wastewater or livestock which flows out from various industrial sites or livestock farms, and in particular, a conveying pipe having pumps attached to the aeration tank from the discharge tank and the sedimentation tank, respectively. The present invention relates to a wastewater treatment system in which the concentration of raw water entering the aeration tank is constantly adjusted so that the concentration of the discharged water discharged through the discharge tank can be uniformly treated.

In general, various cabinet-type wastewater treatment systems, which are commonly used in industrial sites and livestock farms, with minimal installation space, are electrolysis treatment devices that use the principle of electrocoagulation, which is contained in wastewater in electric reactors. It will aggregate the impurities (sludge).

After the sludge in the wastewater forms the first agglomeration as described above, the flocculating agent is introduced into the sludge flotation tank, which is the next process, to form the agitation process, to reaggregate impurities and to float on the water surface, and to remove the injured impurities through a scraper. The wastewater is then recycled through multi-stage soil filtration or microbial treatment or ozone treatment.

However, the water treatment by the electric reaction in such a conventional cabinet-type wastewater treatment method, while the treatment of wastewater is possible for a certain period of time, due to the + and-energization of the continuously used current to the electrode plate in the electric reactor Impurities are generated, and in such a case, water treatment functions are lost, and in the sludge separation tank of sludge, relatively large particles of impurities can be removed, whereas small sludges are contained in the treated water and discharged without separation. In view of this, the treated water is passed through a sedimentation tank or a multi-stage filtration tank, and then the treated water is discharged. However, in the removal of such impurities, a large collection tank, sedimentation tank, and filtration tank other than the cabinet-type wastewater treatment system It requires a lot of facility cost and space, and increases the overall equipment. There were so many issues.

In order to solve this problem, the present application is a utility model registration application No. 2000-5899 dated March 3, 2000, addressed with the first pump, which is the raw water collection and the sludge pump, and the rollers and the screen rollers are installed therein, so that the moisture and the predetermined size are below. Passing through the sludge of the solid-liquid separator and the water collecting tank is installed on the lower side; The solid-liquid separation tank and the second pump is installed to communicate with the separation vessel vessel through a connection pipe provided, the upper and lower tanks are installed above and below the interior of the separation vessel vessel, the upper side of the lower tank agitated waste water A high concentration separation tank in which a stirring means and a water supply device are installed to float impurities, and a sludge collection tank is installed through a sludge separation passage to one side of the separation vessel container; The high concentration separation tank and the second connecting pipe, which are divided into both sides through a partition wall, are formed inside the reservoir, and the storage chamber is formed with a plurality of electrode plates through which the sludge coagulates by application of current. A primary and secondary electrocoagulation reactor configured to be connected and installed at the shaft end to connect the electrode connecting plate to the power supply cable as a connecting means; Upper and lower tanks are installed on the upper and lower sides of the separation vessel vessel in which the connection pipe is extended to one side of the storage chambers of the primary and secondary electrocoagulation reactors, and the waste tank is stirred on the upper side of the lower tank to raise impurities. A sludge floating separation tank having a stirring means and a water supply device installed therein and each of which is equipped with a sludge collection tank through a sludge separation passage to one side of the separation vessel container; A partition wall is installed on an upper side of the filtration vessel through which the water is supplied through the sludge floating separation tank and the connection pipe, and a filter formed by stacking a plurality of layers inside the filtration vessel, and a water collecting tank through which the water is collected through an inclined end portion below. A filter filtration tank installed; The aeration means is installed in the lower side of the primary collection tank into which microorganisms are introduced through the collection tank and the connection pipe of the filter filtration tank, and a secondary collection tank is formed on one side of the primary collection tank via a partition wall, and through the pipe to the upper side thereof. Ozone treatment unit for ozone treatment of water is installed, waste water treatment system comprising a microbial treatment and ozone treatment tank is installed aeration means to the lower side of the third collection tank, which is a recycling water storage tank provided on one side of the secondary collection tank. It was.

However, the wastewater treatment system as described above has a problem in that treated water that has not been completely purified is discharged because the concentration of effluent discharged by the aeration tank, the sedimentation tank and the ozonizer is not constant due to the severe concentration change of the raw water entering the aeration tank.

The present invention was devised to solve the conventional problems as described above, and its purpose is to reduce the concentration of raw water flowing into the aeration tank of the wastewater treatment system, thereby reducing the concentration of raw water from the aeration tank to the final stage of the wastewater treatment. The present invention provides a wastewater treatment system that increases wastewater treatment efficiency by maintaining a constant concentration of discharged water.

1 is a schematic configuration diagram of a wastewater treatment system according to the present invention.

Explanation of symbols on the main parts of the drawings

1.reactor 2.solid-liquid separator

3.Pressure injuries 4 ... Aeration tank

5. Precipitation tank 6, 7. Ozone contact tank.

8 ... discharge tank

11 Raw water feed pump 12 Pressure booster inlet pump

100, 200 ... return pipe 101, 201 ... return pump

In the wastewater treatment system of the present invention as a technical configuration for achieving the above object, in the wastewater treatment system comprising a reaction tank, solid-liquid separator, pressurized flotation tank, aeration tank, sedimentation tank, ozone contact tank, discharge tank, the discharge tank And a conveying pipe having a conveying pump attached to each of the aeration tanks from the settling tank.

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

1 is a schematic configuration diagram of a wastewater treatment system according to the present invention, the present invention is a reaction tank (1), solid-liquid separator (2), pressure flotation tank (3), aeration tank (4), sedimentation tank (5), ozone contact tank (6) (7) In the wastewater treatment system consisting of the discharge tank 8, the conveying pipes 101 and 201 are attached to the aeration tank 4 from the discharge tank 8 and the sedimentation tank 5, respectively. 100 and 200 are included.

In the conveying pipe 100 connected to the aeration tank 4 from the discharge tank 8, a conveying pump 101 is installed so that the inactivated sludge remaining in the discharge tank 8 can be conveyed to the aeration tank 4, The conveying pipe 100 is installed above the aeration tank 4 so that the deactivated sludge is injected downward.

The conveying pipe 200 connected to the aeration tank 4 from the sedimentation tank 5 is provided with a conveying pump 201 so that a part of the wastewater treated in the sedimentation tank 5 can be conveyed to the aeration tank 4. Pipe 200 is connected to the middle portion of the aeration tank (4) is installed so that the treated water is well mixed with the wastewater flowing into the aeration tank (4) from the pressure rise tank (3).

The amount of the treated water conveyed to the aeration tank 4 through the conveying pipes 100 and 200 is 10 to 30% by weight from the discharge tank 8 and 20 to 50% by weight from the precipitation tank 5.

At this time, if the amount of the treated water returned from the discharge tank 8 is less than 10% by weight or the amount of the wastewater returned from the sedimentation tank 5 is less than 20% by weight, the concentration of the wastewater in the aeration tank 4 is lowered. When the amount of the treated water returned from the discharge tank 8 exceeds 30% by weight or the amount of wastewater returned from the sedimentation tank 5 exceeds 50% by weight, the reaction of the microorganisms in the aeration tank 4 is not effective. It will take longer.

Referring to the operation and effects of the present invention made of such a configuration as follows.

As shown in FIG. 1, the reaction tank 1 receives wastewater from the collection tank 10 by a raw water transfer pump 11 to agglomerate impurities contained in the wastewater by the principle of electrocoagulation, and to obtain a solid-liquid separator 2. ) Separates the wastewater passing through the reactor 1 into water and sludge of a certain size or less through the screen.

Wastewater passing through the solid-liquid separator (2) is sent to the pressure flotation tank (3) by the pressure flotation tank inlet pump 12, the pressure flotation tank (3) is agitation process by putting a flocculant into the solid-liquid separated wastewater To re-agglomerate and to float on the surface to remove.

Wastewater from which impurities are removed through the pressure flotation tank 3 is transferred to the aeration tank 4, and the aeration tank 4 removes the soluble organic matter by the aerobic microorganisms introduced.

Wastewater passing through the aeration tank 4 is sent to the settling tank 5, the settling tank 5 precipitates impurities remaining in the wastewater for a predetermined time to separate the liquid and impurities, and the liquid is ozone contact tank 6 ( While sending to 7), a part of the liquid separated as described above is supplied back to the aeration tank 4 through the conveying pipe 200 located below the settling tank 5 to lower the concentration of wastewater in the aeration tank 4.

The ozone contact tank (6) (7) oxidizes and sterilizes the wastewater that has passed through the settling tank (5) by ozone and sends it to the discharge tank (8).

A part of the treated water collected by the discharge tank 8 is discharged and a part is transferred to the aeration tank 4 through the conveying pipe 100. At this time, the conveying pipe 100 is installed in the upper portion of the aeration tank (4) so that the treated water to be conveyed downward to the aeration tank (4), the treated water, air and waste water in the aeration tank (4) is mixed well.

The wastewater treatment system in which the conveying pipes 100 and 200 are installed has an aeration tank caused by raw water having a constant concentration introduced into the aeration tank 4 by reflowing the treated water having been precipitated and ozone purified into the aeration tank 4. (4) By controlling the change in the concentration of wastewater in the end, it is possible to achieve a high wastewater treatment effect by eventually adjusting the concentration of the final discharged treated water.

As described above, according to the wastewater treatment system according to the present invention, a return pipe with pumps respectively installed in the aeration tank and the sedimentation tank is installed to reduce the concentration change of the wastewater in the aeration tank according to the raw water flowing into the aeration tank. Through the treatment step up to the discharge tank, the concentration of the final discharged water can be constant to increase the wastewater treatment efficiency.

In addition, the reflow of the microorganisms contained in the treated water and wastewater returned from the discharge tank and the sedimentation tank shortens the reaction time of the microorganisms in the aeration tank, thereby enabling continuous treatment of the wastewater over a predetermined time period, and at a low cost in a small space. The efficiency of the wastewater treatment can be increased, and the perfect wastewater treatment effect can be obtained.

While the present invention has been shown and described with respect to specific embodiments, it should be understood that the present invention may be variously modified and changed without departing from the spirit or the scope of the present invention provided by the following utility model registration claims. It will be clear to those skilled in the art that it can be easily understood.

Claims (1)

Wastewater treatment comprising a reaction tank (1), a solid-liquid separator (2), a pressurized flotation tank (3), an aeration tank (4), a precipitation tank (5), an ozone contact tank (6) (7), and a discharge tank (8). In the system, Waste water treatment system, characterized in that the transfer pipe (100) (200) is attached to the aeration tank (4) from the discharge tank (8) and sedimentation tank (5), respectively.