KR102309865B1 - Apparatus and method for fermentation and drying of sewage impurities in sewage treatment plant - Google Patents

Abstract

The present invention comprises: a storage hopper with a vibrator installed in a collection chamber into which sewage impurity including impurity is introduced and configured to generate vibration such that the sewage impurity can be easily fall by the generated vibration; a crushing treatment device with a cutting body for crushing and cutting the sewage impurity discharged from the storage hopper and introduced through a crushing hole into a predetermined size; a fermentation dryer, wherein the sewage impurity crushed and cut by the crushing treatment device is supplied to a fermentation chamber, heated and stirred with predetermined heat by automated operation and gas and fermentation residues generated through fermentation are discharged to the outside of the fermentation chamber; an odor removal device which is installed in the fermentation dryer and has a pressure that changes from a positive pressure to a negative pressure when the gas generated during the fermentation process passes through a condenser and a deodorizer such that a bad odor such as ammonia and hydrogen sulfide contained in the gas can be removed; and a residue treatment device which is installed on a lower end of an outlet port of the fermentation dryer and transfers discharged fermentation residues to an arm roll box. Accordingly, the present invention has the effects of decomposing organic matter, heavy metal and salt contained in the sewage impurity, and being equipped with resistance to a temperature of 20-200℃, thereby surviving even in the high-temperature operation conditions and maintaining oxidative fermentation. Therefore, moisture can be removed quickly and weight reducing effect and deodorization effect can be achieved.

Description

Apparatus and method for fermentation and drying of sewage impurities in sewage treatment plant

The present invention relates to an apparatus and method for fermenting and drying sewage impurities in a sewage treatment plant, which can reduce the amount of sewage impurities during crushing, fermentation, and drying of each sewage treatment plant, and in particular, effectively deodorize and remove odors generated during the treatment operation.

In general, sewage contaminants contain a lot of water and are easily decomposed, so that not only does it generate a bad odor, but also there are various difficult problems such as incineration and disposal of sewage contaminants due to the moisture contained therein.

In recent years, as the global waste problem has become a social problem, secondary pollution occurs during incineration and landfill treatment of the waste, and contaminants generated in the sewage and wastewater treatment process that can become the most problematic among the properties of waste, Interest in the treatment of organic waste such as sludge has increased.

The contaminants include various types of foreign substances such as food waste, hair, wet tissues, and plastics, and organic wastes such as food waste, hair, and wet tissues are included in the contaminants.

The sludge is an organic by-product derived from microorganisms inevitably generated in the process of treating sewage and wastewater using microorganisms, and mainly in the activated sludge method, microorganisms ingest and decompose organic substances in wastewater to grow, and the microorganisms thus grown are aggregated in the terminal sedimentation basin. What is precipitated is called oni.

In order to solve the above problem, various sewage contaminant treatment technologies have been devised to efficiently ferment, dry, and pulverize sewage contaminants and utilize them as auxiliary fuels, but they have the following disadvantages.

That is, most of the conventional sewage contaminants treaters pulverize, ferment, and dry the pulverized sewage contaminants so that the pulverized sewage contaminants can be disposed of or used as auxiliary fuel.

Such a conventional treatment apparatus does not efficiently use the heat of fermentation and drying in fermentation, drying, and crushing of food waste, and thus there are many energy waste factors.

In particular, it is recognized as an aversive technology, such as not being able to block the bad odors generated by burning and drying sewage impurities containing a large amount of water, so that reduction treatment work is avoided due to these odors. There is a need for a new sewage contaminant treatment device that can solve the problem as it acts as an impeding factor.

In order to prevent the occurrence of odors as described above, a method of administering drugs in the process of chemically treating sewage contaminants is being carried out. There were disadvantages, etc.

Therefore, in the sewage contaminant treatment industry, various wastes are crushed, fermented and dried in powder form with high thermal efficiency. A sewage treatment device that aims to improve the efficiency of various organic waste treatment operations, etc. has been proposed to the Korean Intellectual Property Office as No. 10-0274067 (hereinafter referred to as the first name), and it is as follows.

The prior invention is an input unit (1) comprising a screw conveyor (22) installed from the lower side of the input hopper (21) to the upper input port (32) side of the mixer (31) of the drying unit (3), and a drive unit (1) 37) is installed on the rotating shaft 41 interlocked with a plurality of stirring impellers (42, 42') on the drum 4 and the drum 4 is installed below the drum 4 as a burner 34 heating chamber for heating the drum (4) A heat supply pipe 35 and a combustion duct 36 are installed in the heating chamber 33 and communicated with the drum 4, and a radiator 6 on one side of the deodorizing unit 5 on the drum 4 upper part. ) and the drying unit (3) provided with an exhaust pipe (45) connected to, and the casters (52) installed on the movable base (51), the radiators (6, 6') and the radiators connected to the drying unit (3) It was composed of a deodorization box (7, 7') connected to (6, 6').

Such a prior invention performs pulverization, fermentation, and drying operations of various sewage treatment products containing moisture with high thermal efficiency, and at the same time removes and deodorizes odor factors of exhaust gas generated during the fermentation and drying operations without chemical treatment. This makes it possible to convert it into fuel, etc., which prevents the generation of odors in various sewage contaminants and provides operational efficiency and convenience to these treatment operations. There was a problem in that weight reduction and odor removal were inefficiently performed.

Registered Patent No. 10-0274067 (Registered on September 7, 2000) Registered Patent No. 10-1209789 (Registered on 2012.12.03.) Registered Patent No. 10-1238876 (Registered on February 26, 2013)

It is an object of the present invention to provide a device capable of reducing waste by crushing, fermenting, and drying sewage contaminants at each sewage treatment plant and, in particular, effectively deodorizing and removing odors generated during treatment operations.

In addition, the present invention aims to decompose organic matter, heavy metals and salts contained in various sewage contaminants, and has a high temperature resistance of 20-200 ° C. have.

The sewage treatment plant contaminant fermentation and drying apparatus of the present invention comprises: a storage hopper provided with a vibrator installed in a collection room into which sewage contaminants are introduced, and allowing the sewage contaminants to fall easily with vibration generated; a crusher equipped with a cutting body for crushing and cutting sewage contaminants discharged from the storage hopper and introduced into the crushing hole into a predetermined size; A fermentation dryer in which the crushed and cut sewage impurities and impurities are supplied to the fermentation chamber through the crusher, and the gas and fermentation residues generated through the fermentation are heated to a predetermined heat by automatic operation and stirred and discharged to the outside of the fermentation chamber; a deodorizer installed in the fermentation and drying process to remove odors such as ammonia and hydrogen sulfide contained in the gas by changing the pressure from positive pressure to negative pressure when the gas generated in the fermentation process passes through the condenser and the deodorizer; Residues treatment machine installed at the bottom of the outlet of the fermentation dryer so that the discharged fermentation residues are transferred to the pressure roll box; The object of the present invention is sufficiently achieved by providing a configuration comprising a.

In the configuration in which the object of the present invention is achieved, it is preferable that the crushing machine is provided so that sewage contaminants are crushed and discharged to a size of 2 cm or less by the engagement rotation of the cutting body installed in the crushing hole of the crushing machine.

In the configuration in which the object of the present invention is achieved, in the fermentation dryer, a stirring body, a heat supply body, and an oxygen supply body are installed inside the fermentation chamber, and a fermentation program in which fermentation time, drying time, fermentation operation temperature and drying temperature are automatically operated is input. It is preferable to configure the operation window to be provided.

In the configuration in which the object of the present invention is achieved, in the fermentation dryer, an induction pipe is installed to move water vapor containing a bad odor generated during the fermentation process to the upper end of the fermentation chamber to the deodorizer, and the water vapor is condensed in the guide tube. It is preferable to provide a condenser that separates the gas and liquid so that the liquid is refluxed into the fermentation chamber and the gas containing the odor is moved to the deodorizer.

In the configuration in which the object of the present invention is achieved, the deodorizer connected to the condenser of the fermentation dryer is preferably configured to be sequentially connected to the first deodorizing body, the second deodorizing body, and the third deodorizing body by the guide pipe of the condenser. .

In a configuration in which the object of the present invention is achieved, the residue treatment machine includes a transfer body installed to the pressure roll box side at the outlet position of the fermentation dryer, and a stopper that opens and closes pneumatically at one end of the transfer body connected to the pressure roll box However, it is preferable that the conveying body be configured by any one of a cylindrical screw tube or a box-type conveyor belt.

In the configuration in which the object of the present invention is achieved, the first deodorizer of the deodorizer has a screen mesh installed at the upper and lower ends of the tank of a predetermined size, respectively, a first adsorption layer composed of sand as a main component and a second deodorizer composed of a biofilter material It is preferable that an adsorption layer is provided, a shower is provided on the upper part of the tank, and a drain pipe is provided on the lower part.

In the configuration in which the object of the present invention is achieved, the second deodorizing body of the deodorizing device is a first adsorption layer composed of sand as a main component, and a second adsorption layer composed of activated carbon and an adsorbent, wherein a screen mesh is installed at the upper and lower ends of the tank of a predetermined size, respectively. It is preferable that an adsorption layer is provided and a drain pipe is provided at the lower part of the tank.

In the configuration in which the object of the present invention is achieved, the third deodorizing body of the deodorizing body is one side bent by bending the catalyst pipe connected to the exhaust pipe of the first or the second deodorizing body in a 'U' shape Preferably, a heater rod is installed in the conduit, a screen net is installed at the upper and lower ends of the other conduit, an oxidation catalyst is provided between the screen net, and an intake fan is installed in the discharge direction of the other conduit.

In the configuration in which the object of the present invention is achieved, the catalyst tube is preferably configured to further include a temperature sensor between the heater system and the oxidation catalyst.

In the configuration in which the object of the present invention is achieved, the operation window is configured to supply power to the stirring body, the heat supply and the oxygen supply provided in the fermentation dryer, and the fermentation time, drying time and fermentation operation of the inputted sewage impurities It is preferable that the setting unit, the timer unit, the comparison judgment unit, and the display unit to be controlled according to the temperature and drying temperature are provided in a closed circuit and configured to be provided with a connected fermentation operation program.

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The present invention not only has an effect of decomposing organic matter, heavy metals and salts contained in sewage contaminants, but also has high temperature resistance of 30-200 ° C. , has the effect of weight loss and deodorization.

1 is a conceptual diagram of a sewage treatment plant fermentation and drying apparatus of the present invention.
Figure 2 is a state diagram of the operation window of the present invention.
3 is a cross-sectional view of a deodorizer to which a biofilter is applied in the present invention.
4 is a cross-sectional view of a deodorizer to which activated carbon is applied in the present invention.
5 is a cross-sectional view of a deodorizer to which an oxidation catalyst is applied in the present invention.
6 is a process schematic diagram of a method for fermentation and drying of impurities in a sewage treatment plant according to the present invention.

Specific embodiments in which the present invention may be practiced will be described with reference to the accompanying drawings illustrating examples.

Not only have these embodiments been described in sufficient detail to enable those skilled in the art to practice the present invention, it should be understood that various embodiments of the present invention are different but not necessarily mutually exclusive.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present invention pertains can easily practice the present invention.

1 is a conceptual diagram for explaining the structural concept of a sewage treatment plant fermentation and drying apparatus of the present invention.

First, sewage contaminants including contaminants collected in each area are administered through the upper inlet 101, and in the collection chamber 110 having a predetermined volume inside the inlet, in order to select contaminants contained in the sewage contaminants. A storage hopper 100 having a vibrator 130 that generates vibration is provided at the bottom.

The storage hopper 100 is manufactured in a cone shape, but the collection chamber 110 is formed in a size of 1 to 3 times the daily throughput, and it is required to be made of a metal that does not rust or a metal coated to prevent rust formation. .

A crusher 200 is provided that crushes and cuts sewage and contaminants discharged to the discharge port 103 at the bottom of the storage hopper 100 to a predetermined size.

The shredding processor 200 allows the cutting body 230 formed of a special alloy material to be interlocked and rotated, and can cut metal materials, plastic materials, rubber materials, non-woven fabrics, leather materials, etc. that are contaminants other than sewage, and the The size is required to be crushed to a size of about 1-3 cm.

A fermentation dryer 300 for fermenting and drying crushed sewage and contaminants in a predetermined state is provided at the lower end of the crushing processor 200 .

In the fermentation dryer 300, sewage and contaminants crushed and cut to a predetermined size through the crusher 200 are put into the fermentation chamber 310, and are stirred and fermented while being heated to a predetermined heat by automatic operation.

The gas and fermentation residues generated in the fermentation process of the sewage impurities are discharged to the outlet 303 provided at the bottom of the fermentation chamber 310 .

Therefore, in the fermentation dryer 300, a stirring body 320, a heat supply body 330, and an oxygen supply body 340 for fermenting sewage and impurities in the fermentation chamber 310 forming a tank shape are required to be installed and , these are required to be electrically connected to the operation window 350 in which the fermentation operation program is automatically driven according to the fermentation time, drying time and fermentation operation temperature and drying temperature setting.

Figure 2 shows the state of the operation window in the present invention. The operation window 350, the fermentation time and drying of sewage contaminants to which power supply to the stirring body 320, the heat supply 330, and the oxygen supply 340 provided in the fermentation dryer 300 has been input in advance. It consists of a fermentation operation program that is provided in a closed circuit with a setting unit, a timer unit, a comparison judgment unit, and a display unit to be controlled according to time, fermentation operation temperature and drying temperature.

The residue processor 400 includes a transfer body 410 installed at a position below the outlet 303 of the fermentation dryer 300 and a press roll box for loading and storing the fermentation residues transferred by the transfer body 410 . (420).

The conveying body 410 may be selectively installed among the components of a cylindrical screw tube or a box-type conveyor belt, and one end of the conveying body 410 , that is, a switch operated pneumatically at one end located at the inlet of the pressure roll box 420 . to be installed

When the fermentation process of sewage impurities input to the fermentation chamber 310 of the fermentation dryer 300 is finished, the fermentation residue is discharged through the outlet of the fermentation chamber 310 and enters the transfer body 410. When it reaches the stopper and is collected Since it is in a state of being compressed by the transfer force, the moisture contained in the fermentation residue is extruded to achieve a reduction in the total weight, and when the opening and closing device of the transfer body 410 is opened, the state of being dropped and loaded into the pressure roll box 420 do.

When the fermentation and drying process of sewage contaminants in the fermentation chamber 310 of the fermentation dryer 300 proceeds, the pressure changes from positive pressure to negative pressure when water vapor is generated and exhausted with heat. Condenser 370 for recovering moisture contained in the gas. To be provided outside the fermentation chamber (310).

The condenser 370 is connected to a deodorizer 500 from which odors such as ammonia and hydrogen sulfide are removed through an induction pipe 371 .

The deodorizer 500 connected to the condenser 370 of the fermentation dryer 300 includes a first deodorizing body 510, a second deodorizing body 530 and a third deodorizing body connected in series with the condenser 370 ( 550).

3 shows a cross-section of a deodorizer to which a biofilter is applied in the present invention. The first deodorizing body 510 of the deodorizer 500 for removing odors has a screen mesh 513 installed on the upper and lower portions of the tank 511 of a predetermined size, respectively, and a first adsorption composed of sand and zeolite as main components. A layer 515 and a second adsorption layer 517 made of a biofilter are provided.

A shower 518 is provided on the upper portion of the tank 511 and a drain pipe 519 is provided on the lower portion, and an inspection window 512 is provided at an intermediate position of the tank 511 to check the status of the biofilter at all times.

In the first deodorizing body 510, the guide pipe 371 of the fermentation dryer 300 is connected to the lower end of the tank 511 so that the gas containing the odor flows into the tank 511, and the tank ( 511) has a structure that is exhausted to the top.

4 shows a cross-sectional state of a deodorizer to which activated carbon is applied in the present invention. In the second deodorizing body 530 of the deodorizing device 500 for odor, screen networks 532 and 533 having different mesh sizes of 2mm and 5mm are installed on the upper and lower sides of the tank of a predetermined size, respectively.

Another screen network 532 having a mesh size of 2 mm in a state in which the first adsorption layer 535 mainly composed of sand and zeolite and the second adsorption layer 537 composed mainly of adsorbent and activated carbon are stacked thereon In this installed state, a drain pipe 539 is provided under the tank 531 .

The second deodorizing body 530 is the guide pipe 371 of the fermentation dryer 300 or the guide pipe 371 of the first deodorizing body 530 is connected to the lower end of the tank 531, so that the gas containing the odor It is introduced into the tank 531 and has a structure in which it is exhausted to the upper end of the tank 531 in a purified state.

5 shows a cross-sectional state of a deodorizer to which an oxidation catalyst is applied in the present invention. The catalyst pipe 551 connected to the guide pipe 371 of the first deodorizing body 510 or the second deodorizing body 530 of the third deodorizing body 550 of the deodorizing device 500 is 'U'. Formed by bending in a 'shape, a heater system 553 is installed on one bent pipe, and a screen network 555 is installed on the upper and lower ends of the other pipe, and an oxidation catalyst is used between the screen networks 555. Let (557) fill installation.

A temperature sensor 558 is provided between the heater system 553 installed in the catalyst tube 551 and the oxidation catalyst 557, and a fan 559 is provided at the discharge position of the guide tube 371 of the catalyst tube 551. It consists of a further provided configuration.

As described above, the sewage treatment plant contaminant fermentation and drying apparatus of the present invention focuses on reducing the amount of sewage contaminants by decomposing them through fermentation, and removing odors contained in the exhaust gas.

6 is a schematic diagram of the organic waste reduction method process according to the present invention. The collected sewage contaminants and microbial preparations are put into the storage hopper 100 of the dry fermentation device, undergo a state of selection by vibration by a vibrator 130, and are moved to the crusher 200 to cut contaminants contained in the sewage contaminants. It undergoes a fermentation preparation step (step 1) to be crushed to a size of 1 to 4 cm by the group 230.

In the state that the sewage contaminants that have passed through the presentation preparation stage are supplied to the fermentation chamber 310 of the fermentation dryer 300, air is injected into the fermentation chamber 310 through the oxygen supply 340, and the stirring speed is about 2-10 rpm. Let the fermentation step (step 2) run at a temperature of 20-200° C. while stirring.

An appropriate fermentation time, agitation speed, and agitation temperature may be set through the operation window 350 according to the type of the main component of sewage contaminants introduced in the fermentation process.

In the fermentation step, gas and water vapor are generated by the fermentation process in the fermentation chamber 310 and are collected by the condenser 370 through the guide pipe 371 connected to the fermentation chamber 310, so the water vapor is filtered by the condenser 370. A separation and recovery step (step 3) in which condensate and gas are separated into gas is performed.

When the processing of steps 1 to 3 is completed, a discharge step (step 4) in which fermentation residues are discharged from the inside of the fermentation chamber 310 to the outside is performed.

As such, during the first to fourth stages of sewage contaminants, the moisture contained in the first sewage contaminants is removed and the weight of the fermentation residues discharged from the fourth stage is reduced to 15-25% level.

In the third step, that is, in the fermentation step, the gas generated inside the fermentation chamber 310 and collected in the condenser 370 is reduced to a liquid due to the heat exchange action of the condenser and returned to the fermentation chamber 310 .

The odor and water vapor contained in the remaining gas pass through the deodorization device (Bio-Filter + activated carbon adsorption device + catalytic oxidation device) and then carry out the deodorization and evaporation step, which is discharged to the outside through the fan.

According to the present invention, the fermentation treatment method of sewage impurities can be operated for about 10-20 hours per one time to complete the organic waste treatment.

As described above, the method for fermenting sewage contaminants in a sewage treatment plant according to the present invention has the effect of significantly shortening the time required for water removal by operating at a high temperature of 20-200°C, which is the microorganism according to the present invention. This is possible because of the high temperature resistance of the formulation, and when using a microbial agent without conventionally known high temperature resistance, it cannot be operated at a high temperature.

In the sewage treatment plant, the sewage contaminant fermentation treatment method may further include heavy metals and/or salts, and the organic waste treatment method according to the present invention has an effect of decomposing heavy metals and salts.

This is possible because the microorganism preparation according to the present invention has the effect of decomposing heavy metals and salts.

The principle of removal of organic matter, heavy metal, and salt by the microbial agent according to the present invention is as described above.

In the treatment method according to the present invention, step 1 is a step of inputting the organic waste and the microorganism preparation according to the present invention to a dry fermentation apparatus. Specifically, 0.1-1 parts by weight of the microbial agent may be added relative to 100 parts by weight of organic waste.

In the treatment method according to the present invention, step 2 is a step of operating at a temperature of 20-200° C. while stirring and injecting air into the dry fermentation device.

By operating at a high temperature of 20-200°C, the time required for water removal can be significantly shortened compared to the conventional treatment method using microorganisms.

This is possible because of the high temperature resistance possessed by the microbial preparations according to the invention. On the other hand, in step 2, an aerobic oxidative fermentation reaction by microorganisms occurs, so it is preferable to operate the microbial preparation to maintain a moisture content of 15-45%.

Here, the stirring speed is preferably operated at a speed of about 2-10 rpm. In the treatment method according to the present invention, step 3 is a step of separating the condensed water by collecting and filtering the gas and water vapor generated in step 2 with a condenser.

Specifically, the gas is a gas generated due to the oxidative fermentation reaction of organic matter and salt, and may be included in the separated condensate, which can be used as a liquid fertilizer.

If liquid fertilizer is not used, it can be disposed of in a wastewater treatment plant without separate water treatment. The biochemical oxygen demand (BOD) of the condensate is 200 ppm or less, the chemical oxygen demand (COD) is 150 ppm or less, and the total nitrogen (TN) is 150ppm or less, the salt concentration is 50ppm or less, which satisfies the general sewage standards.

In the treatment method according to the present invention, step 4 is a step of discharging the remnants after the treatment of steps 1 to 3.

The weight of the residues relative to the total weight of sewage contaminants input in step 1 can be reduced to a level of 15-25%. The residue meets legal standards for use as organic compost.

<Preparation Example 1> Preparation of microbial preparations

Step 1: 0.5 parts by weight of thermophilic microorganisms were inoculated into 100 parts by weight of oak, pine, ash, paulownia, and rice husk, respectively.

The oak, pine, ash and paulownia trees were cut to 30 cm and used.

Oak, pine, ash, paulownia, and chaff inoculated with thermophilic microorganisms were placed in an off-fired furnace for 7 days. The temperature of the furnace in the state that the fire is turned off is 110 ℃.

Step 2: Take out oak, pine, ash, paulownia and rice husk left in the furnace inoculated with the thermophilic microorganism from the furnace, and make an air hole in the furnace to release the gas in the furnace, and then inoculate with thermophilic microorganisms The aged mud was kept for 24 hours.

As the thermophilic microorganism inoculated into the mud, the same kind of thermophilic microorganism as the thermophilic microorganism inoculated on the tree was used.

15 parts by weight of thermophilic microorganisms were inoculated into 100 parts by weight of the clay. The mud was used in the summer paddy field.

Step 3: Each of oak, pine, ash, paulownia, and rice husks inoculated with the thermophilic microorganism and left in the furnace are inoculated with the thermophilic microorganism and the mud left in the fire kiln is mixed in a weight ratio of 2: 1 did.

Step 4: The thermophilic microorganisms were inoculated and the thermophilic microorganisms mixed with the mud left in the furnace were inoculated and the first rice straw was covered over the oak, pine, ash, paulownia and rice husks left in the furnace and at 50 ° C. Fermented for 30 days.

Step 5: The fermented oak, pine, ash, paulownia and rice husks were mixed in a weight ratio of 2:1:1:1:2 to prepare a fermented product.

Step 6: After mixing loess and second rice straw at a weight ratio of 1:10, the mixture was aged at 20° C. while supplying oxygen in an aeration tank for 7 days to prepare an aged product.

Step 7: An original microorganism was prepared by mixing 15 parts by weight of the fermented product with 100 parts by weight of the aged product and aging for 60 days in an aeration tank at a low temperature of 3°C.

Step 8: 0.3 parts by weight of lacquer sprouts, 0.3 parts by weight of green tea leaves, and 0.3 parts by weight of bamboo stems were mixed with 100 parts by weight of the original microorganism and aged at a low temperature at 3° C. for 60 days to prepare a first microbial preparation.

A second microbial preparation was prepared by mixing 0.3 parts by weight of Angelica keis leaf, 0.3 parts by weight of Duchung stem, and 0.3 parts by weight of ginkgo berry in 100 parts by weight of the original microorganism and aging at a low temperature at 3° C. for 60 days.

A third microorganism formulation was prepared by mixing 0.3 parts by weight of mugwort leaf, 0.3 parts by weight of mulberry leaf, and 0.3 parts by weight of sagebrush stem to 100 parts by weight of the original microorganism and aging at a low temperature at 3° C. for 60 days.

3 parts by weight of the third rice straw with respect to 100 parts by weight of the fourth microbial preparation in which the first microbial preparation, the second microbial preparation, and the third microbial preparation are mixed at a weight ratio of 1:1:1, and at a temperature of 27° C. in an aeration tank After aging for 30 days, aeration was turned off and the supernatant was taken after standing for 10 days, accession number KFCC 11704P ( Pseudomonas japonica EG-P01), accession number KFCC 11705P ( Bacillus vietnamensis EG-B01), accession number KFCC 11706P ( Curtobacterium oceanosedimentum EG-C01) to obtain each deposited microorganism.

The third rice straw was used by cutting the rice straw roots stacked under the eyes for 30 days into 10 cm.

Accession number KFCC 11704P ( Pseudomonas japonica EG-P01), accession number KFCC 11705P ( Bacillus vietnamensis EG-B01), and accession number KFCC 11706P ( Curtobacterium oceanosedimentum EG-C01) are 1:5:4 by weight to prepare a microbial preparation did.

The mixed microorganisms were prepared and used in powder, liquid and porous PE pellets, respectively.

<Example 1> Treatment of food waste

100 parts by weight of food waste generated in Bundang-gu, Seongnam and 0.2 parts by weight of the microorganism preparation prepared in Preparation Example 1 are put into the dry fermentation apparatus, and then air is injected into the dry fermentation apparatus and the gas generated while operating at a temperature of 100±5℃ and water vapor was collected by a condenser and filtered to separate condensed water.

Here, the moisture content of the microbial preparation was maintained at a level of about 30-40%, and the treatment was terminated by driving for about 30 days, and the residue was discharged by 20% of the total input amount every 5 days.

It was confirmed that approximately 80-85% reduction was made after food waste treatment was completed.

<Example 2> Treatment of sewage contaminants

100 parts by weight of sewage contaminants and 0.2-0.5 parts by weight of the microorganism preparation prepared in Preparation Example 1 are put into the dry fermentation apparatus, and then air is injected into the dry fermentation apparatus and the gas and water vapor generated while operating at a temperature of 120±5°C was collected with a condenser and filtered to separate condensed water.

Here, the moisture content of the microbial preparation was maintained at a level of about 20-40%, and the treatment was terminated by driving for about 60 days, and the residue was discharged by 20% of the total input amount every 5 days.

It was confirmed that approximately 80-85% reduction was achieved after the sewage contaminant treatment was completed.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but may be manufactured in various different forms, and those of ordinary skill in the art to which the present invention pertains It will be understood that the present invention may be embodied in other specific forms without changing the spirit or essential features of the present invention.

Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: storage hopper 101: inlet 103: outlet
110: collection room 200: crushing processor 210: crushing hole
230: cutting body 300: fermentation dryer 303: outlet
310: fermentation chamber 320: stirring body 330: heat supplier
340: oxygen supply 350: operation window 370: condenser
371: induction pipe 400: residue treatment machine 410: transfer body
420: roll box 500: deodorizer 510: first deodorant body
511: tank 512: inspection window 515: first adsorption layer
517: second adsorption layer 519: drain pipe 530: second deodorizing body
531: tank 535: first adsorption layer 537: second adsorption layer
550: third deodorizing body 551: catalyst tube 553: heater system
555: screen network 557: Sanghwa catalyst 558: temperature sensor
559 : fan

Claims (12)

a storage hopper provided with a vibrator that is installed in a collection room into which sewage contaminants including contaminants are put, and allows the sewage contaminants to fall easily with vibration generated;
a crusher equipped with a cutting body for crushing and cutting sewage contaminants discharged from the storage hopper and introduced into the crushing hole into a predetermined size;
a fermentation dryer in which the crushed and cut sewage contaminants are supplied to the fermentation chamber through the crusher, heated to a predetermined heat by automatic operation, and the gas and fermentation residues generated through the agitated fermentation are discharged to the outside of the fermentation chamber;
a deodorizer installed in the fermentation and drying process to remove odors such as ammonia and hydrogen sulfide contained in the gas by changing the pressure from positive pressure to negative pressure when the gas generated in the fermentation process passes through the condenser and the deodorizer;
Residues treatment machine installed at the bottom of the outlet of the fermentation dryer so that the discharged fermentation residues are transferred to the pressure roll box; including,
The crushing machine is characterized in that it is provided so that sewage contaminants are crushed and discharged to a size of 2 cm or less by the engagement rotation of the cutting body installed in the crushing hole of the crushing machine,
The fermentation dryer is characterized in that it is equipped with an operation window in which a stirring body, a heat supply body and an oxygen supply body are installed inside the fermentation chamber, and a fermentation program for automatically operating a fermentation time, a drying time, a fermentation operation temperature and a drying temperature is provided. do,
In the fermentation dryer, an induction pipe is installed to move water vapor containing malodor generated during the fermentation process to the upper end of the fermentation chamber to a deodorizer, and in the guide tube, the water vapor is condensed and separated into gas and liquid. is provided so that the liquid is refluxed into the fermentation chamber and the gas containing the odor is moved to the deodorizer,
The deodorizer connected to the condenser of the fermentation dryer is characterized in that the first deodorizing body, the second deodorizing body, and the third deodorizing body are sequentially connected by the guide pipe of the condenser,
The first deodorizing body of the deodorizing device is provided with a screen mesh installed at the upper and lower ends of the tank of a predetermined size, a first adsorption layer made of sand and zeolite as main components, and a second adsorption layer made of a bio-filter material, the tank It is characterized in that a shower is provided on the upper part, and a drain pipe is provided on the lower part,
The second deodorizing body of the deodorizer is provided with a screen mesh installed at the upper and lower ends of the tank of a predetermined size, a first adsorption layer made of sand and zeolite as main components, and a second adsorption layer made of an adsorbent and activated carbon, the tank It is characterized in that a drain pipe is provided at the bottom,
In the third deodorizing body of the deodorizing body, a heater system is installed on one side pipe bent by bending the catalyst pipe connected to the guide pipe of the first deodorizing body or the second deodorizing body in a 'U' shape, and the other side A screen mesh is installed at the upper and lower ends of the conduit, an oxidation catalyst is provided between the screen meshes, and an intake fan is installed in the discharge direction of the other pipe,
The catalyst tube is characterized in that a temperature sensor is further provided between the heater system and the oxidation catalyst,
The operation window is set to control the power supply to the stirring body, the heat supply body, and the oxygen supply body provided in the fermentation dryer according to the fermentation time and drying time of the previously inputted sewage contaminants, the fermentation operation temperature and the drying temperature It is characterized in that it is provided with a fermentation operation program connected to a part, a timer part, a comparison judgment part, and a display part in a closed circuit,
In addition to sewage contaminants, the microbial agent is simultaneously added to the fermentation dryer,
The microorganism preparation is characterized in that the microorganism deposited with accession number KFCC 11704P, the microorganism deposited with accession number KFCC 11705P and the microorganism deposited with accession number KFCC 11706P, and the deposited microorganisms are each mixed in a weight ratio of 1:5:4 characterized by being
It is characterized in that it is operated at a temperature of 125° C. while injecting air into the fermentation dryer and stirring, and the organic matter contained in the sewage contaminants is decomposed by the oxidative fermentation reaction by the microorganism,
The sewage contaminants further include at least one of heavy metals and salts, which is characterized in that it is decomposed by an oxidative fermentation reaction by the microorganisms. delete delete delete delete According to claim 1,
The waste disposal device,
A transfer body installed from the outlet position of the fermentation dryer toward the pressure roll box, and one end of the transfer body connected to the pressure roll box, are provided with an opening and closing device that opens and closes pneumatically,
The conveying body is a sewage contaminant fermentation and drying apparatus in a sewage treatment plant, characterized in that any one of a cylindrical screw pipe or a box-type conveyor belt.
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