KR101046211B1 - Apparatus and method for leachate treating - Google Patents

Abstract

PURPOSE: An apparatus for processing leachate and a method for processing the same are provided to sanitarily process the leachate generated from a food waste processing process. CONSTITUTION: An apparatus for processing leachate includes a leachate storing tank(210), a leachate level sensor(220), a spraying part(300), and a leachate evaporating part(400). The leachate storing tank collects the mixture of the leachate and sludge discharged from a food waste processing system. The leachate level sensor is installed in the leachate storing tank and detects the leachate level of the leachate storing tank. The spraying part sprays the mixture based on the output value of the leachate level sensor. The leachate evaporating part exhausts vapor through an exhaust port.

Description

Leachate Treatment Device and Treatment Method {APPARATUS AND METHOD FOR LEACHATE TREATING}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leachate treatment apparatus and a treatment method thereof, and more particularly, to a leachate treatment apparatus and a treatment method for treating sanitary and effective leachate generated during the treatment of food waste.

As is well known, the direct disposal of food waste is prohibited, and the designation and management of businesses with a large amount of food waste discharge are designated as mandatory reduction workplaces to reduce food waste. Was introduced.

This food waste treatment facility is a facility that collects and disposes large amounts of food waste in one place and regularly collects and treats it. It was developed by simple dehydration method, drying method, and microbial fermentation and extinction method. The treatment of leachate is a problem.

In other words, the dehydration method is a method of reducing food waste by simply dehydrating and discharging a large amount of water contained in the food waste, so problems of odor and environmental pollution have emerged and are limited.

In the drying method, a large amount of moisture contained in food waste is electrically heated to be dried and discharged in the form of steam or distilled water, and thus the weight is reduced. The power consumption is very high and the processing time is long.

The microbial fermentation and extinction method is to ferment food wastes by using microorganisms so that it is extinguished and supplies a large amount of water to promote the activation of aerobic microorganisms. There is a problem with the treatment of such mixtures since they mix with leachate.

As such, various methods have been proposed to effectively treat leachate, which is indispensable in the process of treating food waste, and as a representative example, Korean Registered Utility Model Publication No. 20-0435000 (name of design: Food waste that can treat food leachate) There is a treatment system (hereinafter referred to as 'quotation invention'), which is, as shown in Figure 1, in the food waste treatment machine for grinding food waste or fermenting food waste through microorganisms, the food waste processor 100 In order to supply the chemical to the injector 21, and the injector 21 for injecting the contaminated water tank 10 for storing the contaminated raw water, Chemical tank 20 for storing a chemical therein, and the source of polluted water supplied from the injector 21 Rotation that can be rotated in conjunction with a predetermined position of the rotary shaft 33 long and vertically long in the center so that the contaminated raw water condensed by chemicals can be floated and sent to the contaminated raw water tank 10 when reaching a certain level. The wing 32 is connected, the upper pressure unit 30 is connected to the motor 31 that generates power from the power obtained from the outside, and the pressure unit 30 can filter the debris of contaminated water. A multi-layer filter 50 having a multi-layered filter material stacked therein, and an ozone generator 60 generating ozone through an ozone lamp at the rear end of the multi-layer filter 50 and transmitting the ozone to the pressure buoy 30; The ozone generator 60 is a food waste treatment system capable of treating a food leachate having a leachate device 200 including a PLC operation controller 70 that controls the operation while being turned on and off by a predetermined program therein.

This cited invention allows the first purification by the chemicals of the chemical tank 20 to remove and remove the odors and bacteria of food leachate generated in the food waste treatment machine, the fine filter material is multi-layered Secondary purification by the multi-layer filter 50 made of, and to remove bacteria and odor by ozone spray through the ozone generator (60), so the unhealthy side, such as odor and bacteria by the use of food waste treatment It is effective in solving the problem and shortening the leachate removal process of food waste.

However, this cited invention is a multi-layer for separating and filtering the fine waste (organic sludge, which is a metabolite discharged by microorganisms in microbial fermentation and extinction), and the chemicals have to be continuously consumed as consumer goods for the purification of leachate. The filter 50 should be configured, and in order to maintain the filtration performance of the multi-layer filter 50, the filter media must be exchanged, thereby increasing the leachate purification and maintenance costs as well as being purified by chemicals, and the multi-layer filter 50 The waste is filtered through, and even if bacteria and odors are removed by ozone spray, there is still a problem that the treated water is discharged with high pH and high salinity.

Republic of Korea Utility Model Registration No. 20-0435000 (Name of the plan: Food waste treatment system for food leachate treatment)

An object of the present invention is to spray the food leachate separated and discharged from the food waste treatment facility to natural minerals having high water absorption ability, heated to far-infrared rays with excellent radiation, penetration, resonance and absorption power, and stirring to solve this problem. Therefore, to provide a leachate treatment apparatus and a treatment method that can effectively treat the power consumption to minimize.

The present invention provides a leachate storage tank for collecting a mixture of leachate and sludge discharged from the food waste treatment system to achieve this object; A water level sensor installed in the leachate storage tank for detecting a level of the leachate storage tank, and an injection unit for pumping and spraying the mixture in the leachate storage tank by an output value of the level sensor; A water absorbent layer made of mineral having a high water absorption rate is installed in the spraying direction of the spray unit, and an exhaust port is provided above the water absorbent layer to adsorb the mixture sprayed from the spray unit to the water absorbent layer, and the mixture is adsorbed. A leachate evaporation unit through which the water adsorbent layer is stirred, heated and evaporated through the exhaust port; It provides a leachate treatment apparatus consisting of a control unit for controlling the injection amount of the injection unit and the stirring, heating of the leachate evaporator by receiving the output value of the water level sensor.

The present invention also includes a leachate collection step of collecting the leachate and sludge mixture from the food waste treatment system in the leachate storage tank; An injection step of pumping and spraying the water absorbent layer when the level of the mixture collected in the leachate storage tank in the leachate storage tank is a predetermined value or more; A stirring step of stirring the moisture absorbent layer such that the mixture sprayed in the spraying step is sprayed evenly onto the moisture absorbent layer; A heating step of heating the moisture absorbent layer stirred in the stirring step evenly with far infrared rays to evaporate the mixture adsorbed on the moisture absorbent layer; An exhausting step of sucking, sterilizing, deodorizing, and exhausting the steam discharged from the heating step; A control step of controlling the injection amount, stirring, heating, and exhaust by the water level information input in the injection step; Provided is a leachate treatment method comprising a sludge collection step of collecting and periodically collecting the organic sludge dried and dropped through the stirring step and the heating step in the sludge collector.

The present invention collects a mixture of leachate and sludge discharged from the food waste treatment system as it is, when a predetermined amount is filled, the spraying unit finely sprays the mixture,

This is adsorbed by the water adsorbent layer of the leachate evaporation portion of the mineral leachate evaporation of high moisture absorption rate, because the mineral of the water adsorbent layer is stirred, the finely sprayed mixture is evenly adsorbed to the inside of the water adsorbent layer,

Since the moisture adsorbent layer is evenly heated to the inside of the moisture adsorbent layer by far infrared rays having excellent radiation, penetration, resonance, and absorption ability, the heat area applied to the leachate is greatly increased, so that the leachate can be effectively evaporated with little heat, and thus the power consumption is high. Since only leachate is evaporated and only organic sludge is discharged, there is no need to filter or mix the leachate and sludge mixture and use chemicals to reduce the maintenance cost. Treatment costs are also reduced because the organic sludge that is finally discharged can be recycled as raw materials of organic compost or fertilizer without any separate treatment.

In addition, the present invention has a useful effect of optimizing the power consumption by the control unit for controlling the injection amount of the injection unit and the stirring, heating of the leachate evaporation unit by receiving the output value of the water level sensor.

1 is a perspective view showing the structure of the cited invention;
Figure 2 is a perspective view showing a specific embodiment of the leachate treatment apparatus according to the present invention.
3 and 4 are cross-sectional views showing specific embodiments of the leachate treatment apparatus according to the present invention.

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

2 and 3 show the overall configuration of a specific embodiment of the leachate treatment apparatus according to the present invention.

As can be seen from the present invention, the leachate storage tank 210 for storing a predetermined amount or more by collecting a mixture of leachate and sludge discharged from the known conventional food waste treatment system 100,

The injection unit 300 is installed in the leachate storage tank 210 to inject and pump the mixture in the leachate storage tank 210 according to the output value of the water level sensor 220 for detecting the level of the mixture in the leachate storage tank 210. Wow,

While the water adsorbent layer 430 made of mineral having a high water absorption rate adsorbs the mixture so as to adsorb the mixture sprayed from the spraying unit 300, the mixture is stirred and heated, and the vaporized steam is sterilized through the exhaust port 420. Leachate evaporation unit 400 to be exhausted to the sterilization deodorization unit 600, and

The controller 500 may be configured to control the amount of injection of the injection unit 300 and the stirring and heating of the leachate evaporator 400 by receiving the output value of the water level sensor 220. 600 may be composed of a filter and a blower configurable by a known ozone sterilizer, activated carbon filter, and the like.

To explain this in more detail for each component, the injection unit 300 pumps the mixture in the leachate storage tank 210 and the mixture pumped by the pump 320 Connecting the injection nozzle 330 to the water absorbent layer 430 of the leachate evaporator 400, the leachate storage tank 210 and the injection nozzle 330 to transfer the mixture to the injection nozzle 330 It may be composed of a transfer pipe 310,

As shown in FIG. 4, the leachate evaporator 400 supports the moisture absorbent layer 430 layered with minerals having a high moisture absorption rate, and the perforated plate 440 provided with a through hole through which dried sludge passes. ), A stirring blade 450 for stirring the minerals of the moisture absorbent layer 430 supported on the perforated plate 440, a stirring motor 460 for rotating the stirring blade 450, and the perforated plate 440. A heater 410 for heating the moisture absorbent layer 430 to far infrared rays having excellent radiation, penetration, resonance, and absorption power, and exhausting the vapor evaporated by the heating of the heater 410 to the sterilization deodorizing unit 600. The exhaust port 420 may be configured.

Here, the moisture absorbent layer 430 is heat-resistant and wear-resistant that can withstand 1000 degrees Celsius while having a high water absorption so as to adsorb a large amount of the mixture injected through the injection nozzle 330 of the spraying unit 300. The layer may be formed of a mineral such as an excellent zeolite, and may be composed of a plurality of layers overlapping at regular intervals. At the bottom, only the dried organic sludge falling by the stirring of the moisture absorbent layer 430 in the upper layer may be collected. A sludge collection bin may be provided.

The leachate treatment apparatus according to the present invention stores a mixture of leachate and sludge discharged from the food waste treatment system 100 in the leachate storage tank 210,

When the control unit 500 monitors the mixture level stored through the water level sensor 220 and recognizes that the level change is greatly increased or the level of the mixture stored above a certain level is increased,

The heater 410 and the moisture absorbent layer 430 of the leachate evaporator 400 are preheated and the pump 320 of the sprayer 300 is controlled to transfer the mixture in the leachate storage tank 210 to the transfer pipe. Pumped to the injection nozzle 330 through the 310 to spray on the preheated moisture absorbent layer 430, part of which is immediately evaporated, part of the adsorption, absorbed by the moisture absorbent layer 430, the other perforated plate 440 Through the through hole will fall to the lower level.

At this time, the control unit 500 controls the stirring motor 460 and the heater 410 to agitate the moisture adsorbent layer 430 with the stirring blade 450 and the heater 410, so that the finely sprayed mixture This is evenly sprayed on the moisture absorbent layer 430 to be evaporated, adsorbed, and absorbed, and the leachate contained in the mixture is far-infrared because it is evenly heated to far-infrared rays having excellent radiation, penetration, resonance, and absorbing power emitted from a few heaters 410. The area of heating heated by heat is greatly increased and the instantaneous evaporation amount is increased, and since the leachate that has not been evaporated is continuously heated in the state of being absorbed by the high-temperature water absorbent layer 430 having high absorption rate, the agitation of the water absorbent layer 430 is caused by stirring. Since the evaporation is continuously performed even in the section not heated by the heater 410, it is possible to effectively treat the leachate with low power consumption. The.

As the leachate in the mixture adsorbed on the water absorbent layer 430 is continuously evaporated, only dried organic sludge is adsorbed on the mineral surface of the water absorbent layer 430. When the mineral and the minerals are agitated by the stirring blades 450, the mineral adsorbent layer 430 is able to maintain its function for a long time because the minerals and the minerals are rubbed with each other. 440) is collected in the lower sludge collection through the filtration of the stratum, so that the mixture of leachate and sludge is not filtered or purified using chemicals, and does not discharge any leachate, the recycling immediately collected in the sludge collection This will be able to provide possible organic sludge.

In addition, the leachate treatment method using the leachate treatment apparatus is a leachate collection step of the mixture of leachate and sludge discharged from the food waste treatment system 100 is collected in the leachate storage tank 210,

If the water level of the mixture collected in the leachate storage tank 210 in the leachate collection step is a predetermined value or more pumping step of spraying to the water absorbent layer 430,

A stirring step of stirring the moisture absorbent layer 430 so that the mixture sprayed in the spraying step is sprayed evenly onto the moisture absorbent layer 430;

A heating step of evenly heating the moisture absorbent layer 430 stirred in the stirring step in far-infrared to evaporate the mixture adsorbed on the moisture absorbent layer 430;

An exhaust step of sucking and disinfecting the steam discharged from the heating step and then deodorizing the exhaust;

A control step of controlling the injection amount, stirring, heating, and exhaust by the water level information input in the injection step;

Through the stirring step and the heating step may be composed of a sludge collection step to collect the organic sludge dropped in the sludge collector and periodically collected,

Here, in the control step, the controller 500 monitors the mixture level stored through the water level sensor 220 and recognizes that the level of the mixture stored above a predetermined level is increased. The heater 410 and the moisture absorbent layer 430 are preheated, and the pump 320 of the spray unit 300 is controlled to spray the mixture in the leachate storage tank 210 through the transfer pipe 310. 330 is pumped to the preheated moisture absorbent layer 430, and the controller 500 controls the stirring motor 460 and the heater 410 to direct the moisture absorbent layer 430 to the stirring vane 450. The mixture is evaporated by heating with a heater 410 while stirring.

As described above, the present invention is not limited to the above-described embodiments, but can be variously changed within the spirit and concept of the present invention.

100: food waste treatment system 210: leachate storage tank 220: water level sensor
300: injection part 310: transfer pipe 320: pump
330: spray nozzle 400: leachate evaporation unit 410: heater
420: exhaust vent 430: moisture adsorbent layer 440: perforated plate
450: stirring blade 460: stirring motor 500: control unit
600: sterilization deodorant

Claims (6)

A leachate storage tank for collecting a mixture of leachate and sludge discharged from the food waste treatment system;
A water level sensor installed in the leachate storage tank and detecting a level of the leachate storage tank, an injection unit for pumping and spraying the mixture in the leachate storage tank by an output value of the level sensor;
A water absorbent layer made of mineral having a high water absorption rate is installed in the spraying direction of the spray unit, and an exhaust port is provided above the water absorbent layer to adsorb the mixture sprayed from the spray unit to the water absorbent layer, and the mixture is adsorbed. A leachate evaporation unit through which the water adsorbent layer is stirred, heated and evaporated through the exhaust port;
Leachate treatment apparatus comprising a control unit for controlling the injection amount of the injection unit and the stirring, heating of the leachate evaporator by receiving the output value of the water level sensor. The method of claim 1,
The injection unit connects a pump for pumping the mixture in the leachate storage tank, an injection nozzle for injecting the mixture pumped by the pump into a water absorbent layer of the leachate evaporation unit, and the leachate storage tank and the injection nozzle. Leachate treatment apparatus characterized in that consisting of a conveying pipe for conveying the mixture to the injection nozzle. The method of claim 1,
The leachate evaporation unit supports the water absorbent layer layered with minerals having a high water absorption rate, and a perforated plate having a through hole through which dried sludge passes;
A stirring blade for stirring the minerals of the moisture adsorbent layer supported on the perforated plate, and a stirring motor for rotating the stirring blade;
A heater for heating the moisture absorbent layer on the perforated plate to far infrared rays,
Leachate treatment apparatus characterized in that it consists of an exhaust port for exhausting the vapor evaporated by the heating of the heater. The method of claim 1,
The mineral constituting the moisture absorbent layer is a leachate treatment apparatus characterized in that the zeolite. A leachate collection step in which a mixture of leachate and sludge discharged from the food waste treatment system is collected in a leachate storage tank;
If the water level of the mixture collected in the leachate storage tank in the leachate collection step is more than a predetermined value pumping step of spraying to the water absorbent layer;
A stirring step of stirring the moisture absorbent layer such that the mixture sprayed in the spraying step is sprayed evenly on the moisture absorbent layer;
A heating step of heating the moisture absorbent layer stirred in the stirring step evenly with far infrared rays to evaporate the mixture adsorbed on the moisture absorbent layer;
An exhaust step of sucking and disinfecting the steam discharged from the heating step and then deodorizing the exhaust;
A control step of controlling the injection amount, stirring, heating, and exhaust by the water level information input in the injection step;
Leachate treatment method using the leachate treatment apparatus of claim 1, characterized in that the sludge collection step of collecting and periodically collecting the organic sludge dried and dried in the sludge collector through the stirring step and the heating step. The method of claim 5, wherein
In the controlling step, when the control unit monitors the level of the mixture stored in the leachate storage tank through a level sensor in the leachate storage tank and recognizes that the level of the mixture stored above a certain level is increased, the heater and the moisture absorbent of the leachate evaporator are increased. Preheat the floor,
By controlling the pump of the injection unit to pump the mixture in the leachate storage tank to the injection nozzle of the injection unit to spray on the preheated moisture absorbent layer,
The control unit is a leachate treatment method using the leachate treatment apparatus of claim 1, characterized in that by controlling the stirring motor and the heater to agitate the moisture adsorbent layer with a stirring blade and to heat the heater.

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