KR20090125390A - A deserted domestic animal land reclamation revival purification management method - Google Patents

Abstract

PURPOSE: A method for purifying and recycling reclaimed land of domestic animal is provided to purify leachate generated in the reclaimed land, and to increase territorial usage modulus by recycling and utilizing the reclaimed land. CONSTITUTION: A method for purifying and recycling reclaimed land of domestic animal comprises the following steps of: installing a shield to block the whole sites of the reclaimed land(S10); installing a leachate elution bath(S20); separating the leachate and sludge(S30); incinerating the separated sludge in an incinerator(S40); heating leachate with heat of the incinerator(S50); sterilizing dead domestic animals buried in the reclaimed land(S60); and incinerating the dried domestic animals(S70).

Description

A DESERTED DOMESTIC ANIMAL LAND RECLAMATION REVIVAL PURIFICATION MANAGEMENT METHOD}

The present invention is to provide a purification treatment method for regenerating waste livestock landfills that have already been disposed of at a suitable place after the dead livestock has been killed, and is intended to be blocked from the outside including the entire landfill area in the buried state. And installing a barrier membrane and forming a leachate outlet for securing leachate generated from the landfill in the barrier membrane installed therein, eluting the leachate in the landfill, and then purifying and separating the sludge contained in the leachate in an incinerator. At the same time incineration and the leachate after a separate purification process is heated using the heat generated by the incinerator and re-supplied into the landfill to sterilize the various bacteria present in the landfill, and the soil removed from the landfill and The carcasses should be transferred through the conveyor. Through the pre-heating process, it is dried and fed to the incinerator side, and the process of repacking or reclaiming the bone powder generated from the carcass is carried out to utilize the reclaimed waste landfill which enables the recycling of landfills containing dead animals. It relates to a purification treatment method for.

The leachate produced at the landfill varies greatly depending on the composition of the landfill waste, water content of the waste layer, years after landfill, rainfall, landfill design conditions, and so on. It is difficult to treat with a simple general water treatment method, and the process is determined according to the type and degree of treatment of the target material to be treated in leachate.

The effluent quality standards after treatment of leachate, as defined by the Korean Waste Management Act, include biological oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SS), and phenol. 25 substances are set up. The existing water treatment methods for each pollutant to be treated are as follows.

In the case of BOD, there are precipitation, flocculation sedimentation, sand filtration, biological treatment, activated carbon adsorption, etc. Of these, biological treatment is the most commonly used. In the case of SS, the flocculation precipitation method is most often used. In the case of COD, biological treatment, coagulation sedimentation, and activated carbon adsorption are used in parallel. Among them, COD treatment of biological treatment is highly efficient at the early stage of landfill with many biodegradable substances, but late stage of reclamation with many hardly decomposable substances. There is less efficiency. In the flocculation sedimentation, since the properties of the COD component change after biological treatment, the treatment efficiency is high and the treatment efficiency may be improved within a certain range by increasing the addition amount of the flocculant. In the case of performing activated carbon treatment, the COD treated water quality varies depending on the treatment conditions, but can be treated up to 20 mg / l or less. Nitrification is required for the treatment of ammonia, and denitrification by biological nitrogen treatment is sometimes performed. Chromaticity is a part of COD treatment, but final treatment is performed by installing activated carbon adsorption tower or ozone treatment tower. In addition, a treatment process for treating other contaminants is required.If soluble iron or manganese is oxidized, it becomes a poorly soluble hydroxide and precipitates, so if these items are expected to be high concentrations, it is necessary to adjust the treatment tank to avoid adverse effects on biological treatment facilities. An acid pipe is installed to pre-aerator to form a poorly soluble hydroxide and remove it from the settling tank. Preliminary aeration oxidizes reducing substances such as sulfides, reducing the problem of odor and oxygen consumption. Heavy metals generally have low concentrations, whereas most of them are in the SS state due to the formation of insoluble salts such as sulfides and hydroxides. If the concentration is high enough to adversely affect the function of the treatment facilities, a flocculation settling facility is installed in front of the biological treatment facilities. do. In order to completely remove the heavy metals, the chelate resin adsorption tower may be installed at the rear of the water treatment facility. However, due to the problems of cost and maintenance, the installation of the chelate resin adsorption tower is not considered, except in the case of landfills containing heavy metals. As such, since the types of treatment facilities are very diverse and different according to conditions such as landfill time, the size of the leachate treatment plant required for the entire operation of the landfill is very wide and the cost problem is inevitably increased (cited in Korean Patent Publication No. 2004-55754). )

In particular, in the situation where the livestock raised on farms are frequently killed by the spread of infectious diseases such as avian influenza, it is not easy to secure landfills due to the increase in the amount of livestock that is killed and reclaimed every year. Of course, there is a problem that the utilization of the land in a narrow country also falls because it is not easy to use the landfill already buried and additional landfills must be secured.

In addition, the leachate generated from landfills is contaminated with drinking water, and the environmental pollution is in the urgent stage, but it is well known that the fundamental solution for this is insufficient. .

Therefore, the present invention has been made in order to solve the above-mentioned other problems, the object of the present invention to purify the landfill area of the waste livestock that has been discarded by our treatment.

In addition, the present invention is another object of heating the leachate generated in the landfill area to a high temperature and at the same time effective purification and re-injecting the treated leachate into the landfill zone so that the sterilization treatment of the landfill proceeds at the same time by high temperature. .

The present invention for achieving the above object,

A method for reclaiming landfills made by reclaiming dead livestock,

Blocking step installation step (S10) for blocking the entire outer area of the landfill site,

A leachate leaching tank installation step (S20) for securing a leachate leaching tank by selecting a range for eluting leachate within the installed range of the barrier film;

Leachate and sludge separation step (S30) for separating the sludge and leachate contained in the leachate eluted in the leachate leaching tank,

Sludge incineration step (S40) for incineration by moving the sludge separated by the leachate and sludge separation step to the incinerator,

Leachate heating step (S50) for heating the leachate separated in the leachate and sludge separation step using the heat of the incinerator in the sludge incineration step (S50),

Sterilization step (S60) using the leachate to leach the leachate which is heated to a high temperature by the leachate heating step into the landfill to sterilize the dead body in the landfill;

Recycling waste livestock landfills, comprising the step of transporting the soil and the dead bodies secured in the landfill through a conveyor, followed by a sequential preheating process, and drying them. It suggests a purification method for use.

In addition, the present invention includes that the heat generated by the dead incineration step (S70) is used as a heat source for heating the leachate.

In addition, the present incinerator includes hydrogen gas as a heat source.

In addition, the present invention includes the blocking film formed in the blocking film installation step (S10) by the triple shielding.

In addition, the present invention includes that the leachate and sludge in the leachate and sludge separation step (S30) is separated by a centrifuge.

In another aspect, the present invention includes the intake of the heat exchange pipe in the incinerator to heat the leachate separated in the leachate and sludge separation step (S30), and the heated leachate includes repeating a series of operations to be re-introduced into the landfill.

In addition, the present invention includes that the leachate circulated is discharged after the clarification treatment finally through the leachate purification step (S80).

According to the present invention, as well as the purification of leachate generated in the landfill land buried in the landfill can be treated as well as the waste livestock in the landfill area to enable the regeneration and utilization of landfill land, it has the effect of increasing the national land utilization.

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

The present invention is to enable the purification process for the regeneration of the landfill waste landfills through a series of work processes or steps as shown in Figure 1, the step of installing a barrier to block the entire outside of the landfill site (S10) ), And the leachate leaching tank installation step (S20) to secure the leachate leaching tank by selecting a range for eluting the leachate within the installed range of the barrier film, and to separate the leachate and sludge contained in the leachate leaching in the leachate leaching tank Leachate and sludge separation step (S30), and the sludge incineration step (S40) for incineration treatment by moving the sludge separated by the leachate and sludge separation step, and the leachate using the heat of the incinerator in the sludge incineration step And a leachate heating step (S50) for heating the leachate separated in the sludge separation step, and the leachate heating step The sterilization step (S60) using the leachate to sterilize the dead body in the landfill by re-injecting the leachate heated to a high temperature by the landfill, and the soil and the dead body secured in the landfill is transferred through a conveyor to sequentially preheat It includes a step of drying through the process and includes a mortar incineration step (S70) to enter the incinerator to incineration, circulating leachate is characterized in that the final clarification treatment by the leachate purification step (S80).

(Blocking step installation- S10 )

This process means the step of selecting a landfill area to be purged from the landfill area where waste livestock is already buried, and installing a barrier to block the outside of the selected landfill area.

When the purification zone is selected in the landfill area as described above, the outside is shielded by using a vinyl or the like so that the inside and the outside are completely blocked.

For example, when the worker enters the primary barrier, they are allowed to wear dressings and antibacterial clothing, and then pass through the secondary barrier. After sterilization is possible in the secondary barrier zone, it passes through the tertiary barrier. It is desirable to enable the work in the landfill area so as to prevent infections from various bacteria or the like that are infected by premature influenza or the like during the operation and may exist in the lung livestock landfill area.

( Leachate tank  Installation Steps- S20 )

In this process, after the completion of the installation of a three-layer blocking film outside the landfill area as described above, excavating a predetermined area of the landfill using heavy equipment such as a fork lane to form a leachate discharging tank for inducing leachate existing in the landfill. do.

As such, when the landfill is excavated to form a leachate leaching tank 100 having a suitable scale, leachate existing in the landfill is flowed into the leachate leaching tank 100 to form a water level.

The leachate leaching tank 100 is collected not only leachate but also sludge.

Therefore, the leachate collected in the leachate 100 is pumped by a separate pump means to be transferred to a centrifuge 200 provided separately using a conveyor or the like.

(Leachate and Sludge  Separation Steps- S30 )

This process is to separate the leachate and the sludge supplied from the leachate leaching tank 100 installed by the leachate leaching tank installation step (S20), the leaching water and sludge and the like by using a transfer means such as a conveyor as described above When supplied to the centrifuge 200 side to separate the leachate and sludge in the centrifuge (200).

The leachate and sludge separated as described above are subjected to a series of processes introduced to the incinerator 300 through a separate conveying means such as a conveyor.

In this process, before the leachate is introduced to the incinerator 300 side, the leachate is to be purified through the leachate purification step (S80) to be described later, this process and technical details will be described later.

( Sludge  Incineration stage- S40  / Leachate Heating Stage- S50 )

As described above, the leachate and the sludge are separated by the centrifuge 200 so that the sludge flows into the incinerator 300 and then incinerated, and the leachate is purified after the leachate purification step (S80). The leachate in the state is introduced into the incinerator 300, so that the leachate in the purified state is heated using the heat generated by incineration of the sludge in the incinerator 300.

Here, the sludge guided to the incinerator 300 is preheated to be preheated and dried in the transfer process, so that the sludge introduced into the incinerator 300 is introduced into a dried state, thereby increasing the incineration efficiency.

The heat source of the incinerator 300 used hydrogen gas in the present invention.

To this end, it is preferable to install a heat exchange pipe inside the incinerator 300 so that the leachate is heated while passing through the heat exchange pipe.

In this way, the leachate may be sterilized and sterilized by heating the leachate or liquefied or discharged by adding microorganisms. In the present invention, various kinds of bacteria present in the landfill are recycled by recycling the leachate heated to a high temperature. It is preferable to sterilize the back and the like.

(Sterilization step- S60 )

As described above, the step of re-injecting the leachate heated to a high temperature through the heat exchange pipe installed in the incinerator 300 again into the landfill, the incinerator 300 is heated to about 100 ℃ and incinerator 300 When the leachate passes through the heat exchange pipe of), the leachate passing through the leachate is embedded on the other side of the landfill, i.e., the opposite side of the leachate discharging tank 100, and the pipe is connected to the heat exchange pipe and the heat exchange pipe is connected by high pressure. Pressurized high-temperature leachate passed through the landfill to sterilize various germs, bacteria, etc. in the landfill.

Such pipes, that is, pipes embedded in the landfill, are provided with at least one or more plural selected landfills, and the leachate supplied after being heated in the heat exchange pipe in the incinerator 300 is preferably supplied to the landfill.

( Mortal  Incineration stage- S70 )

This process is to dig out and incinerate the dead bodies in the landfill landfill, the leachate is continuously flowed into the leachate leaching tank 100 so that a small amount of leachate is present in the dead bodies buried in the upper part of the landfill It is to use the equipment, such as an excavator to dig up the soil in the state of lifting the upper side to be moved to the incinerator 300 by using a conveying means such as a conveyor.

In this case, the dead body is dried through a pre-heating process in the transfer process, and then subjected to a series of processes that are introduced into the incinerator 300 and then incinerated.

On the other hand, the ashes generated from the incinerated mortality may be subjected to a post-treatment process to be used as a landfill or fertilizer by packaging treatment.

Leachate Purification- S80 )

This process is for purifying the leachate generated in the landfill, the leachate purification treatment unit 400 is composed of a leachate suction unit 410 and the leachate treatment unit 420.

The leachate suction unit 410 includes a pipe 413 for pumping and sucking leachate by the pumping of the pump 412 driven by the motor 411 and injects oxygen into the leachate introduced through the pipe 413. Dissolved oxygen supply section 414 for supplying.

The leachate treatment unit 420 is supplied with a flocculant through the flocculant administration unit 421 into the leachate passing through the dissolved oxygen supply unit 414, and the flocculation tank 422 and the flocculation tank for flocculation by rapid stirring and mixing the leachate At least one stirring tank 423 is connected to the rear side and the microorganism dosing tank 424 is sequentially connected to the last end side of the stirring tank 423, and the bottom of the stirring tank 423 and the microorganism dosing tank 424 is connected. The leachate which has a sludge discharge part 425 connected to discharge sludge and is finally purified by the microbial administration tank 424 is discharged to the outside through the discharge pipe 426 connected from the microbial administration tank 424. Be sure to

The leachate discharged as described above is introduced into the incinerator 300 side, passes through a heat exchange pipe provided in the incinerator 300, is heated, and then re-injected through a pipe provided in a plurality of landfills as described above. Through a series of processes to sterilize the various bacteria in the landfill, such as the leachate is sterilized is subjected to a repeating cycle of the leachate purification step (S80).

In addition, it is preferable that the scene of the regeneration process in the landfill selected for regeneration according to the present invention in real time, the captured information is sent out remotely to enable the central control panel to grasp the real-time working status.

Such image information can control and control the amount of work and the progress of work at each work site, as well as the system for checking, controlling and controlling real-time amount of work by the image information extraction and transmission system and the central control panel. The implementation may vary depending on site conditions.

On the other hand, in addition to the above embodiment by the use of heat generated in the incineration process, such as the addition of a fertilizer process using the lime can be carried out by the design change according to the situation of the construction to manufacture the organic fertilizer, and also the present invention Prior to the leachate discharge tank installation step (S-20) corresponding to the initial process of the pre-sterilization within the selected landfill area or a large amount of microorganisms, such as to reform the landfill to be worked.

1 is a process flow diagram illustrating an overview process of the present invention.

Figure 2 is a schematic diagram showing a general purification treatment apparatus using the method of the present invention

3 is a schematic view showing a purification processing unit applied to the present invention

※ Brief description of the main symbols in the drawings

S10; Block installation step

S20; Leachate Discharge Tank Installation Stage

S30; Leachate and Sludge Separation Steps

S40; Sludge Incineration Stage

S50; Leachate Heating Stage

S60; Sterilization Step

S70; Mortal incineration stage

S80; Leachate Purification Step

100; Leachate leaching tank 200; Centrifuge

300; Incinerator 400; Purification Process

410; Leachate suction 411; motor

412; Pump 413; pipe

414; Dissolved oxygen supply unit 420; Leachate Treatment Division

421; Coagulant administration 422; Agglomeration tank

423; Stirring tank 424; Microbial administration tank

425; Sludge discharge 426; Discharge pipe

Claims (8)

A method for reclaiming landfills made by reclaiming dead livestock, Blocking step installation step (S10) for blocking the entire outer area of the landfill site, A leachate leaching tank installation step (S20) for securing a leachate leaching tank by selecting a range for eluting leachate within the installed range of the barrier film; Leachate and sludge separation step (S30) for separating the sludge and leachate contained in the leachate eluted in the leachate leaching tank, Sludge incineration step (S40) for incineration by moving the sludge separated by the leachate and sludge separation step to the incinerator, Leachate heating step (S50) for heating the leachate separated in the leachate and sludge separation step using the heat of the incinerator in the sludge incineration step (S50), Sterilization step (S60) using the leachate to leach the leachate which is heated to a high temperature by the leachate heating step into the landfill to sterilize the dead body in the landfill; Recycling waste livestock landfills, comprising the step of transporting the soil and the dead bodies secured in the landfill through a conveyor, followed by a sequential preheating process, and drying them. Purification method for application. The method of claim 1, The heat generated by the incineration of the dead body (S70) is a purification treatment method for utilizing the livestock landfill recycling, including being used as a heat source for heating the leachate. The method of claim 1, And said incinerator uses hydrogen gas as a heat source. The method of claim 1, The blocking film in the blocking film installation step (S10) is a purification treatment method for utilizing the livestock landfill recycling, including the three by the shielding. The method of claim 1, In the leachate and sludge separation step (S30), the leachate and the sludge is a purification treatment method for utilizing the livestock landfill recycling comprising the separation by centrifuge. The method of claim 1, Incorporating a heat exchange pipe into the incinerator to heat the leachate separated in the leachate and sludge separation step (S30), and the heated leachate recycles waste livestock landfills, which includes circulating a series of operations to be re-introduced into the landfill. Purification treatment method. The method of claim 1, The leachate is a purification treatment method for utilizing the livestock landfill regeneration, including flowing into the incinerator after the leachate purification step (S80). The method of claim 7, wherein The leachate purification step (S80) includes a pipe 413 for pumping and inhaling leachate by the pumping of the pump 412 driven by the motor 411, and oxygen in the leachate introduced through the pipe 413. Leachate suction unit 410 and is provided with a dissolved oxygen supply unit 414 for supplying, A coagulant is supplied through the coagulant injection unit 421 into the leachate passing through the dissolved oxygen supply unit 414 and at least one of a coagulation tank 422 and a coagulation tank 422 rearward to rapidly agitate and mix the leachate. The agitating tank 423 is connected and the microbial administration tank 424 is sequentially connected to the last end side of the agitating tank 423 and connected to the lower side of the agitating tank 423 and the microbial administration tank 424 for discharging sludge. The leachate having a sludge discharge unit 425 and finally purified by the microbial administration tank 424 is discharged to the outside through the discharge pipe 426 connected from the microbial administration tank 424. Purification treatment method for utilizing the livestock waste landfill regeneration including the purification process.

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