KR20090100962A - Stock raising onsite wastewater treatment apparatus - Google Patents

Abstract

PURPOSE: An apparatus for treating waste water generated in livestock raising is provided to discharge water by treating the waste water according to a standard value of COD, BOD, a color etc after mixing the ozone in the waste water in which slurry is removed. CONSTITUTION: An apparatus for treating waste water generated in livestock raising includes an adulteration process tank(11), a livestock wastewater reservoir(12), an anaerobic tank(20), an ozone reactor(30), a microbe tank(50), a settling tank(60), and a post-ozonation process bath(70). The adulteration process tank discharges only the livestock wastewater after filtering adulteration included in the wastewater. The livestock wastewater reservoir stores the livestock wastewater in which the adulteration is processed. The anaerobic tank discharges the adulteration included in the livestock waste water. The ozone reactor discharges the second processed water after mixing the first processed water with the ozone. The microbe tank supplies the air to the second processed water. The settling tank precipitates the sludge included in the third processed water. The post-ozonation process bath increases oxygenation concentration by supplying the oxygen to the third processed water.

Description

Livestock Wastewater Treatment System {STOCK RAISING ONSITE WASTEWATER TREATMENT APPARATUS}

 The present invention relates to a livestock wastewater treatment apparatus capable of significantly increasing the activity of microorganisms after oxidizing a highly toxic substance such as antibiotics contained in the livestock wastewater by mixing ozone in a supercritical state.

In general, wastewater discharged from livestock farms such as poultry farms, pig farms, and dairy farms increases the environmental pollution considerably, so it is regulated by law to discharge water at the lowest possible BOD, COD, and turbidity conditions by treating it with water. For this purpose, livestock farms that discharge a lot of livestock wastewater have to install treatment facilities for livestock wastewater purification.

On the other hand, livestock wastewater is high in concentration, hardly decomposable compared to general sewage or manure, and it takes a long time to decompose livestock wastewater biologically, and nitrogen concentration is excessively higher than organic concentration, so nutrition balance is not met. The barn disinfectant used for excessive barn disinfection to prevent infectious diseases in farms, antibiotics, etc. are included, so even when treated with nitrogen, the activity of the microorganisms is significantly reduced by antibiotics, there is a problem that takes a long time to process.

SUMMARY OF THE INVENTION An object of the present invention is to provide a livestock wastewater treatment apparatus capable of significantly increasing the activity of microorganisms after oxidizing a highly toxic substance such as antibiotics contained in the livestock wastewater by mixing ozone in a supercritical state.

Another object of the present invention is to provide a livestock wastewater treatment apparatus that can be discharged by adjusting the COD, BOD, chromaticity and the like to meet the standard value by mixing ozone in the supercritical state to the livestock wastewater from which the slurry is removed.

The present invention is a conventional livestock wastewater treatment apparatus having a livestock wastewater storage tank for filtering and collecting the wastes contained in the livestock wastewater to discharge only the livestock wastewater, and receiving and storing the livestock wastewater treated with the contaminants in the contaminant treatment tank. In

An anaerobic tank supplied with the livestock wastewater stored in the livestock wastewater storage tank to remove the anaerobic substances contained in the livestock wastewater and to discharge them to the first treated water; An ozone reaction tank receiving the first treated water, mixed with ozone to oxidize and remove the antibiotic contained in the first treated water, and to discharge it to the second treated water; A microbial tank that receives the second treated water and mixes it with air (or oxygen) to supply air (or oxygen) to the second treated water, and discharges the third treated water from which organic matter is removed by the microorganisms; It characterized in that it comprises a settling tank for depositing the sludge contained in the third treated water.

Preferably, the anaerobic tank, the first storage tank for receiving the livestock wastewater stored in the livestock wastewater storage tank and the inlet and outlet are located in the interior of the first storage tank, respectively, the circulation pump for forcibly circulating the livestock wastewater Equipped; The ozone reaction tank includes a second storage tank receiving the first treated water treated with the anaerobic substance therein, a second pump for sucking the first treated water, and the first treated water sucked into the second pump; A mixer for receiving ozone from the outside and mixing the first treated water and ozone, and a mixing tube for discharging the mixed water mixed in the mixer into the second storage tank; The microbial tank includes microorganisms for removing organic matters from a fourth storage tank and a fourth storage tank which are supplied with and discharged the second treated water discharged from the ozone reaction tank, and the second treated water introduced into the fourth storage tank. A fourth pump for sucking the gas and the third mixer for receiving the second treated water sucked by the fourth pump and air (or oxygen) from the outside, respectively, and mixing the second treated water and air (or oxygen); A third mixing pipe for discharging the mixed water mixed in the third mixer into the fourth storage tank; The settling tank includes a settling tank receiving the third treated water discharged from the microbial tank to precipitate sludge contained in the third treated water and an inlet for supplying the third treated water discharged from the microbial tank to the settling tank. And, located in the lower portion of the settling tank characterized in that it has a rotary blade for rotating the introduced third treated water and a slurry discharge port for removing the precipitated slurry.

Preferably, the anaerobic tank is a first bulkhead and a first circulation pump located in the first anaerobic tank and the second anaerobic tank separated into the first and second anaerobic tank so that only the livestock wastewater flows downward. It is characterized by consisting of a two-circulation pump.

Preferably, the ozone reactor is a third storage tank for receiving and storing a second treatment water, a third pump for sucking the second treatment water, the second treatment water sucked into the third pump and air or oxygen from the outside. And a second mixing tube receiving each of the second treated water and mixing air or oxygen, and a second mixing tube discharging the second mixed water mixed in the second mixer into the third storage tank.

Preferably, the mixer is gradually reduced in diameter, the upper reduction tube into which the first treatment water or the second treatment water flows, the side suction tube into which ozone or air (oxygen) is introduced from the outside, and the lower portion of the upper reduction tube. The cervical part is gradually enlarged by being spaced apart from each other, and has a lower enlarged tube configured to discharge a mixture of ozone or air introduced into the first or second treated water and the side suction pipe into the upper portion.

Preferably, the inlet of the settling tank is characterized in that formed on the lower side of the settling tank.

Preferably, the saturated oxygen measuring sensor for checking the BOD, COD, turbidity, etc. of the fifth storage tank and the fourth treated water introduced into the fifth storage tank and supplied with the fourth treated water discharged from the sedimentation tank, 5 In the fifth pump for sucking the fourth treated water from the storage tank, the fourth treated water sucked by the fifth pump and the fourth mixer and the fourth mixer for mixing ozone from the fourth treated water by receiving ozone from the outside, respectively. It is characterized in that it further comprises a post ozone treatment tank having a fourth mixing pipe for discharging the mixed water mixed into the fifth storage tank.

Livestock wastewater treatment apparatus according to the present invention by mixing ozone in the livestock wastewater in a supercritical state by oxidizing and removing the poisonous substances such as antibiotics contained in the livestock wastewater to significantly increase the activity of the microorganisms to shorten the treatment time There is this.

In addition, by mixing ozone in the supercritical state in the livestock wastewater from which the slurry is removed after the microbial treatment, there is an advantage that can be discharged by adjusting the COD, BOD, chromaticity and the like appropriately to the reference value.

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

1 is a block diagram of a livestock wastewater treatment apparatus according to an embodiment of the present invention, Figure 2 is a detailed view of a mixer according to the present invention, Figure 3 is a block of a livestock wastewater treatment apparatus according to another embodiment of the present invention 4 is a block diagram of another livestock wastewater treatment apparatus according to the present invention.

As shown in Figure 1, the livestock wastewater treatment apparatus of the present invention comprises a contaminant treatment tank (11) to filter out the impurities contained in the livestock wastewater to discharge only livestock wastewater; A livestock wastewater storage tank 12 for receiving and storing the livestock wastewater in which the contaminants have been treated in the contaminant treatment tank; An anaerobic tank (20) for receiving livestock wastewater stored in the livestock wastewater storage tank and removing the anaerobic substances contained in the livestock wastewater and discharging them to the first treated water; An ozone reaction tank 30 which receives the first treated water and mixes it with ozone to oxidize and remove the antibiotic contained in the first treated water and release the second treated water; A microbial tank 50 which receives the second treated water and mixes it with air (or oxygen) to supply air (or oxygen) to the second treated water, and discharges the third treated water from which the organic matter is removed by the microorganisms; A settling tank 60 for precipitating sludge contained in the third treated water and a settling tank for precipitating sludge contained in the third treated water; And a post ozone treatment tank 70 for supplying oxygen to the third treated water to increase the oxygen saturation concentration.

The contaminant treatment tank 11 filters the contaminants contained in the livestock wastewater provided from the livestock wastewater treatment tank and the like so that only the livestock wastewater is discharged.

The livestock wastewater storage tank 12 receives the livestock wastewater from which the contaminants have been treated in the contaminant treatment tank 11 and stores the primary livestock wastewater. The livestock wastewater storage tank 12 may sequentially provide livestock wastewater according to the treatment capacity of the livestock wastewater.

The anaerobic tank 20 is a first storage tank 21 for supplying and discharging livestock wastewater stored in the livestock wastewater storage tank 12 and an inlet and an outlet are respectively located inside the first storage tank 21 to collect livestock wastewater. A circulation pump 22 forcibly circulated is provided. The anaerobic tank is forcibly circulated as a circulation pump 22 in a state in which livestock wastewater stored in the livestock wastewater storage tank 12 is supplied to the inside using the circulation pump 22, and anaerobes such as phosphorus and nitrogen contained in the livestock wastewater. It is discharged and removed to discharge into the first treated water. At this time, the livestock wastewater introduced into the anaerobic tank by the inlet and outlet of the circulation pump 22 flows to prevent accumulation of livestock wastewater on the bottom of the anaerobic tank 20. In addition, when the upper portion is opened, anaerobic substances such as phosphorus and nitrogen released may be easily discharged.

The ozone reaction tank 30 includes an ozone reaction tank 31 for supplying and discharging internally treated first treated water and a second pump 33 for sucking the first treated water, and a second pump 33. Receiving the first treatment water sucked into the ozone (34) from the outside and the mixer 32 for mixing the first treatment water and ozone and the mixed water mixed in the mixer to discharge into the ozone reaction tank (31) The mixing pipe 35 is provided.

As shown in FIG. 2, the mixer 32 is gradually reduced in diameter and connected to an upper reduction pipe 61 into which the first treated water sucked from the second pump is introduced, and an external ozone generating device, so that ozone is introduced. The side suction pipe 62 is spaced apart from the lower portion of the upper reduction pipe by a predetermined distance and gradually expands the neck is made up of the lower expansion pipe 63 for discharging the mixture of the first treatment water and ozone to the lower mixing pipe. The first high-pressure treated water introduced into the mixer 32 passes through the upper reduction tube 61, and the flow rate becomes very fast, so that ozone is strongly sucked into the side suction tube 62 and mixed. Thereafter, the mixture of the first treatment water and ozone passing through the lower enlargement tube 63 is reduced while passing through an enlarged neck portion, so that the first treatment water and ozone are mixed with each other in a molecular state so that the mixing tube 31 is mixed. And while staying in the ozone reaction tank 30, the oxidizing agent and the like, such as antibiotics contained in the first treated water is removed by oxidizing and released to the second treated water.

The microorganism tank 50 is a microorganism (not shown) for removing organic matter from the fourth storage tank 51 and the fourth storage tank 51 to receive and discharge the second treated water discharged from the ozone reaction tank 30 therein. And the fourth pump 52 for sucking the second treated water introduced into the fourth storage tank 51, the second treated water sucked into the fourth pump 52 and air (or oxygen) 54 from the outside. ) Is supplied to each of the third mixer 53 and the third mixer 53 for mixing the second treated water and air (or oxygen) to discharge the mixed water mixed in the third mixer 53 into the fourth storage tank 51. Three mixing pipes 55 are provided. As described above, the microbial tank 50 may provide abundant oxygen to the introduced second treated water, so that the microorganisms may quickly remove the organic material and release it to the third treated water.

The settling tank 60 is located at the bottom of the settling tank 61 and the settling tank 61 to receive the third treated water discharged from the microbial tank 50 and to settle the sludge included in the third treated water. 3, a rotary blade 63 for rotating the treated water and a slurry discharge port 64 for removing the precipitated slurry. In this case, the inlet 62 through which the third treated water discharged from the microorganism tank 50 is introduced is formed at one side of the lower side of the precipitation tank, and the slurry is precipitated by its own weight, and the fourth treated water from which the slurry is removed is discharged. Do.

After ozone treatment tank 70 is a BOD of the fourth treated water introduced into the fifth storage tank 71 and the fifth storage tank 71 to receive and discharge the fourth treated water discharged from the settling tank 60 therein. The fourth pump suctioned by the saturated oxygen measuring sensor 72 for checking the COD, the turbidity, the fourth treated water of the fifth storage tank 71, and the fourth suction sucked by the fifth pump 73. A fourth agent 74 which receives ozone from the treated water and the outside and discharges the mixed water mixed in the fourth mixer 74 and the fourth mixer 74 into the fifth storage tank 71. Four mixing pipes 76 are provided. As described above, the post ozone treatment tank 70 circulates the fourth treated water to the fourth mixer 74 until the concentration of oxygen measured by the saturated oxygen measuring sensor 72 becomes equal to or higher than the reference value, and microorganisms are removed. The oxygen concentration can be converted into the fifth treated water and discharged.

As shown in FIG. 3, according to another embodiment of the present invention, the anaerobic tank 20 divides the first partition wall into the first anaerobic tank 20 and the second anaerobic tank 20 so that only the livestock wastewater flows downward. (23), the first circulation pump 22 located in the first anaerobic tank 20, and the second circulation pump 26 located in the second anaerobic tank 20 are provided. In this way, the anaerobic tank is separated into a plurality of compartments such as the first anaerobic tank 20 and the second anaerobic tank, and the second anaerobic tank 20 in the state of firstly removing the anaerobic wastewater introduced from the livestock wastewater storage tank 12. It can be moved to the) to improve the anaerobic removal efficiency.

In addition, the ozone reaction tank 30 includes a second partition 36 separating the first ozone reaction tank 31 and the residual ozone removal tank 37 so that the first treated water moves only downward, and the first ozone reaction tank 31. The first pump 33 and the first mixer to mix the first treatment water sucked into the first treatment water of the c), the first treatment water sucked into the second pump 32 and ozone 34 from the outside The third pump 38 for sucking the second treated water moved to the residual ozone removal tank 37, the first mixing pipe 33 for discharging the mixed water mixed in the first ozone reaction tank (31) In the second mixer 39 and the second mixer 39 which receive air or oxygen from the outside and the second treated water sucked into the third pump 38 and mix the second treated water and air or oxygen, respectively. A second mixing pipe 41 for discharging the mixed second mixed water into the residual ozone removal tank 37 is provided. At this time, the second mixer 37 has the same structure as that of the mixer, and the second treated water and air or oxygen are mixed with each other in a molecular state while passing through the second mixer 37, thereby remaining in the second mixing tube 37 and remaining. During the stay in the ozone removal tank 37, ozone is contained in the second treated water and ozone is converted into oxygen while reacting with air or oxygen to quickly remove the microorganisms from being destroyed by ozone in the microorganism described below. Can be.

On the other hand, as shown in Figure 4, the livestock wastewater treatment apparatus of the present invention may selectively form one or two or more sand filter 80, activated carbon filter 90, backwash water path 100. . Through the sand filter 80, the activated carbon filter 90 or the backwash water passage 100 may be discharged by removing the untreated microorganisms or organic matter that may be included in the fifth treated water.

It is to be understood that the present invention is not limited to the above-described preferred embodiments, but can be practiced in various ways without departing from the spirit of the present invention in various ways. If you can easily understand. If the implementation by such improvement, change, substitution or addition falls within the scope of the appended claims below, the technical spirit is also regarded as belonging to the present invention.

1 is a block diagram of a livestock wastewater treatment apparatus according to an embodiment of the present invention.

2 is a detailed view of a mixer according to the present invention.

Figure 3 is a block diagram of a livestock wastewater treatment apparatus according to another embodiment of the present invention.

Figure 4 is a block diagram of another livestock wastewater treatment apparatus according to the present invention.

Claims (8)

In the conventional livestock wastewater treatment apparatus having a livestock wastewater treatment tank for filtering the contaminants contained in the livestock wastewater to discharge only the livestock wastewater, and a livestock wastewater storage tank for receiving and storing the livestock wastewater treated with the contaminants in the wastewater treatment tank, An anaerobic tank supplied with the livestock wastewater stored in the livestock wastewater storage tank to remove the anaerobic substances contained in the livestock wastewater and to discharge them to the first treated water; An ozone reaction tank receiving the first treated water and mixing it with ozone to oxidize and remove the antibiotic contained in the first treated water and to release it to the second treated water; A microbial tank which receives the second treated water and mixes it with air (or oxygen) to supply air (or oxygen) to the second treated water, and discharges the third treated water from which organic matter is removed by the microorganisms; A precipitation tank for precipitating sludge contained in the third treated water; And a post ozone treatment tank for supplying oxygen to the third treated water to increase the oxygen saturation concentration. The method of claim 1, The anaerobic tank has a first storage tank for receiving livestock wastewater stored in the livestock wastewater storage tank and a circulation pump for inlet and outlet respectively located in the first storage tank and forcibly circulating livestock wastewater; The ozone reaction tank includes a second storage tank receiving the first treated water treated with the anaerobic substance therein, a second pump for sucking the first treated water, and the first treated water sucked into the second pump; A mixer for receiving ozone from the outside and mixing the first treated water and ozone, and a mixing tube for discharging the mixed water mixed in the mixer into the second storage tank; The microbial tank includes microorganisms for removing organic matters from a fourth storage tank and a fourth storage tank which are supplied with and discharged the second treated water discharged from the ozone reaction tank, and the second treated water introduced into the fourth storage tank. A fourth pump for sucking the gas and the third mixer for receiving the second treated water sucked by the fourth pump and air (or oxygen) from the outside, respectively, and mixing the second treated water and air (or oxygen); A third mixing pipe for discharging the mixed water mixed in the third mixer into the fourth storage tank; The settling tank includes a settling tank receiving the third treated water discharged from the microbial tank to precipitate sludge contained in the third treated water and an inlet for supplying the third treated water discharged from the microbial tank to the settling tank. And, Livestock wastewater treatment apparatus characterized in that it comprises a slurry discharge port for removing the settled slurry and a rotary blade for rotating the third treated water introduced in the lower portion of the settling tank. The method of claim 2, The anaerobic tank, the first partition wall when separating into the first anaerobic tank and the second anaerobic tank so that only the livestock wastewater flows down; A first circulation pump located in the first anaerobic tank, Livestock wastewater treatment apparatus, characterized in that consisting of a second circulation pump located in the second anaerobic tank. The method of claim 2, The ozone reaction tank, and the third storage tank for receiving and storing the second treated water, A third pump for sucking the second treated water; A second mixer which receives air or oxygen from the second treated water sucked into the third pump and the outside, respectively, and mixes the second treated water and air or oxygen; Livestock wastewater treatment apparatus comprising a second mixing pipe for discharging the second mixed water mixed in the second mixer into the third storage tank. The method of claim 2, Livestock wastewater treatment apparatus, characterized in that the inlet of the settling tank is formed on the lower side of the settling tank. The method according to claim 2, wherein The mixer is a narrowing portion is gradually reduced, and the upper reduction pipe to which the first treatment water or the second treatment water flows; A side suction pipe through which ozone or air (oxygen) flows from the outside, The lower portion of the upper reduction tube is separated by a predetermined distance gradually expands the neck portion is characterized by consisting of a lower expansion tube for discharging a mixture of ozone or air introduced into the upper portion of the first treatment water or second treatment water and the side suction pipe. Livestock wastewater treatment device. The method of claim 1, After ozone treatment tank, and the fifth storage tank for supplying and discharging the fourth treatment water discharged from the settling tank therein, Saturated oxygen measuring sensor for checking the BOD, COD, turbidity, etc. of the fourth treated water introduced into the fifth storage tank, A fifth pump for sucking the fourth treated water of the fifth storage tank, A fourth mixer which receives ozone from the fourth treated water sucked into the fifth pump and the outside and mixes the fourth treated water and ozone, respectively; Livestock wastewater treatment apparatus further comprising a fourth mixing pipe for discharging the mixed water mixed in the fourth mixer into the fifth storage tank. The method of claim 7, wherein Livestock wastewater treatment apparatus further comprises any one of the sand filter, activated carbon filter, backwash water and their sequentially connected.

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