KR20100059471A - All-in-one deodorizing equipment comprising scrubber and biofilter for removal of high concentration odor and voc - Google Patents

Abstract

PURPOSE: An integrated deodorization device of a scrubber and a biofilter is provided to reduce a concentration level and to absorb the dust and high concentration odor, while enhancing efficiency of the reducing odor flowing into the biofilter. CONSTITUTION: A deodorization device comprises the following; an influx unit(10) where foul odor flows into a scrubber device by driving a deodorizing fan; a scrubber device(20) which eliminates the foul odor among the air flowing from the influx unit while passing through a pall ring(21); a humidification part(30) supplying moisture to the scrubber device; a chemical supply part(40) which automatically supplies chemicals to regularly maintain pH concentration of the humidification part; a biofilter processing unit(50) which decomposes the air transferred from the scrubber device while passing through the microbial carrier and eliminates the foul odor; a sprinkling water circulation/drain line(60) in which the moisture is supplied periodically to the biofilter processing unit or pumping out the provided moisture.

Description

All-in-one deodorizing equipment comprising scrubber and biofilter for removal of high concentration odor and VOC}

In the present invention, odors such as ammonia, hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide, methyl disulfide, benzene, toluene, and ethyl Scrubber and biofilter mixed deodorizer (scrubber + biofilter) to simultaneously purify air mixed with volatile organic compounds such as benzene, xylene and hexane In more detail, by attaching a scrubber to the front of the biofilter inlet so as to adhere to the microbial carrier layer to suppress the phenomenon that the deodorization efficiency of the high concentration of odor and dust inflow is reduced, the odor and VOCs material is contained The present invention relates to a scrubber and a biofilter-integrated deodorizer which can simultaneously purify existing air.

In general, odors are mainly generated in environmental foundations, various industrial facilities, and farm houses, and many other odors are generated. These odors are easily thought to be unpleasant, but the root cause of the odors is corruption or various substances. Since it is caused by volatile organic compounds, it is harmful to the human body, and there are many problems, such as deterioration of efficiency or increase of safety accidents due to reduced concentration.

In order to remove odors and VOCs contained in the contaminated air, various physicochemical methods such as activated carbon adsorption, chemical liquid cleaning, catalytic oxidation, and high temperature incineration are used. However, when the odor and the VOCs are removed from the contaminated air by using the treatment method described above, secondary pollutants are emitted, and facility costs and operation costs are high. Therefore, in recent years, waste gas purification technology using microorganisms has been used a lot of methods to remove odors and VOCs.

The above-described biological filtration techniques include biofilters, biowashers, air lifts, trickle air biofilters, and the like. Among these treatment methods, biofilters and trickle air biofilters are most commonly used to treat odors and VOCs.

The biofilter is composted in the housing. Filled with organic-inorganic microbial carriers such as peat moss, bark, porous ceramics, and microorganisms attached to the microbial carriers, and polluted air containing odors and VOCs is oxidized and decomposed by microorganisms as they pass through the carrier to form odorless air. to be.

In addition, trickle air biofilter is mainly used to remove VOCs, and its shape is similar to biofilter, but the microorganism carriers filled in the housing are decomposed by microorganisms such as compost and peat moss. Organic materials cannot be used, and especially the molded surface area has high strength of plastic, porous ceramic, polyurethane foam, etc., and it is not decomposed by microorganisms and has high affinity with microorganisms. In addition, the upper side of the housing filled with the microbial carrier is provided with a supply path for supplying water (moisture) so that the microorganism can continue to grow in the microbial carrier. However, the above-mentioned activated carbon adsorption, chemical liquid cleaning, catalytic oxidation, and high-temperature incineration methods are not used in combination with biofilters, and there are problems in considerable land area, facility cost, and facility maintenance even when mixed. Therefore, when the microbial deodorization facility and the scrubber are installed integrally for such inconvenience, cost reduction, and limited efficiency, the deodorization efficiency, performance, and facility cost can be reduced.

1 is a view schematically showing an example of removing odors using a chemical cleaning method, the chemical cleaning method is a method by the absorption of water to fill the inside of the cleaning tower 100 by polling and supply the chemical solution from the top Odor gas is dissolved and discharged by absorption while passing through the polling layer.

2 is a view schematically showing an example of removing the odor component and volatile organic compounds at the same time using a conventional biofilter, the odor introduced when using the conventional biofilter is removed while passing through the microorganism deodorization tower (110). .

In general, the odors generated from sludge treatment process of sewage treatment plant, manure treatment plant, waste water treatment plant, etc. are odors generated at high concentration. When odors are removed by using the existing microorganism deodorization tower, the odor concentration is high. Sufficient biodegradation time should be maintained. In addition, in order to remove odor generated at high concentration with a microorganism deodorization tower, dilute the odor concentration and reduce the pollutant load or install a pretreatment facility to stably remove the odor so that excessive processing air volume and facility cost are generated. There is a problem.

FIG. 3 is a view schematically illustrating an example of simultaneously removing an odor component and a volatile organic compound using a conventional biofilter 200 and a scrubber 100, and FIG. 3 is a method combining the techniques of FIGS. 1 and 2. When it is difficult to remove odorous air having a high concentration by a single method, a method of using a deodorization method in combination is the same method as that of FIG. 3. However, when deodorizing by the method of FIG. 3, it is necessary to secure a large area and a high facility cost by separately manufacturing facilities.

As mentioned above, the polluted air generated in most sewage treatment sludge process, manure treatment and wastewater treatment plants emits high concentrations of odors. Therefore, the existing scrubber or biofilter alone can efficiently deal with high concentration odors generated in the field. If the facilities are installed individually, high facility costs and a lot of land are required. In particular, in a facility where high concentrations of odors and VOCs are released, the type and characteristics of microorganisms decomposed are different, so a technique for simultaneously treating high concentrations of mixed odors is required.

In addition, even in workplaces where odors are mainly generated or VOCs are mainly emitted, the characteristics of polluted air generated at the workplace can be classified into high concentrations and low winds and low concentrations. In this case, the development of a simple and easy-to-operate system that can respond appropriately to the change of the polluted air discharge situation is urgently required in the case of a severe change in the generation form.

The present invention has been made to solve the above problems, an object of the present invention is the odor, such as hydrogen sulfide, methyl mercaptan of sludge treatment process and manure treatment plant, wastewater treatment plant and benzene, toluene, zylene, dichlorobenzene To develop a multi-stage deodorizer that simultaneously removes high-level odor mixed with volatile organic compounds such as dichloromethane and scrubber and biofilter-integrated deodorizer that can simultaneously remove high-odor odor mixed with volatile organic compounds. have.

Another object of the present invention is a scrubber and biofilter integrated device capable of simultaneously removing a high concentration of odor in one system to facilitate the design and operation of a system without a separate design change according to a change in the concentration of polluted air and a volume of air generated in the field. It is to provide a scrubber and biofilter integrated deodorizer which can treat polluted air with high efficiency and do not require site space and facility cost according to many facilities because it does not use individual facilities.

Technical means pursued in the present invention in order to achieve the above object is a deodorizing device equipped with a scrubber and a biofilter to remove odors and volatile organic compounds, to introduce the odor into the scrubber device by the drive of the deodorizing fan Inlet; A scrubber device for removing odors in the air introduced from the inlet while passing through the polling layer; A humidifier for supplying moisture to the scrubber device and a drug supply unit for automatically supplying a chemical to maintain a constant pH concentration of the humidifier; A biofilter processing device for biologically decomposing and removing odors while the air transferred from the scrubber device passes through the microbial carrier; The scrubber and biofilter integrated for removing high concentration odor and volatile organic compounds, characterized in that it comprises a sprinkling fluid circulation / drainage line for periodically supplying water to the biofilter processing device or draining the supplied water Present the deodorizer.

In another aspect, the present invention provides a scrubber and a biofilter integrated deodorizing device, characterized in that the scrubber device and the biofilter device are integrally installed so that the air containing the odor and VOCs material can be simultaneously purified.

The present invention can be installed in a sewage treatment plant sludge treatment facility, a manure treatment plant, a wastewater treatment plant where a high concentration of odor is generated, so as to absorb the dust and high concentration odor concentration in the scrubber and lower the concentration can increase the efficiency of odor removal flowing into the biofilter. It is possible to reduce the land area and facility cost by constructing the scrubber and biofilter stages as a tower, and also to convert and operate the scrubber and biofilter facility according to the change of operation conditions according to the generation of polluted air. have.

Therefore, when such deodorizing facilities for high concentration odor removal are commercialized, most of the deodorizing facilities currently installed as individual facilities can be treated in a single tower, which not only reduces site and facility costs but also increases competitiveness in the domestic industry. Will be.

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

Figure 4 is a schematic diagram illustrating the overall operation of the deodorizing device for removing odor with a scrubber and a biofilter according to the present invention, Figure 5 is a schematic diagram showing a deodorizing device for removing odor with a scrubber and a biofilter according to the present invention Figure 6 is a plan view, Figure 6 is a side view schematically showing a deodorizing device for removing odor with a scrubber and a biofilter according to the present invention, Figure 7 is a view schematically showing an air disturbance guide plate according to the present invention.

In general, the overall configuration of the present invention, the inlet portion 10 for introducing the odor into the scrubber device by the drive of the deodorizing fan, while the odor in the air introduced from the inlet portion 10 through the polling layer Scrubber device 20 to remove, a humidifier 30 for supplying water to the scrubber device 20, and a chemical supply unit for automatically supplying a chemical so as to maintain a constant pH concentration of the humidifier 30 40, the biofilter processing apparatus 50 for removing the odor biologically decomposed biologically while passing through the microbial carrier, and the biofilter processing apparatus 50, the water periodically in the biofilter processing apparatus 50 It is configured to include a water spray circulation / drainage line 60 for supplying or draining the supplied water, in particular in the present invention, the scrubber device 20 and the biofilter device 50 As it is composed of one-piece without being installed separately, each is configured to be able to purify the air contained the odor and VOCs substances at the same time.

The inlet 10 is provided with a deodorizing fan 11 to allow the air containing the odor into the scrubber device 20, to remove the odor in the air introduced from the inlet 10 The scrubber device 20 has a spraying nozzle 25 for humidification, a polling layer 21 for absorbing dust and a high concentration of odor by water, and polling in the air transferred to the air transfer passage 22. While a water remover 23 is provided to prevent moisture from penetrating into the biofilter device 50, the air transfer passage 22 is installed to cross each other in at least one or more, and uniformly disturbs the air. Air disturbance guide plate 24 is installed to guide the air disturbance guide plate 24 is a plurality of holes (24a) are bored is configured to maintain the air flow to the perforated holes (24a) , The air transfer passage ( An end plate 22 is provided with an equal distribution plate 26 at an angle of 20 ° -40 ° (preferably 30 °) so that the transferred air can be evenly distributed into the biofilter device 50.

In addition, the humidification unit 30 for supplying water to the scrubber device 20, the humidification tank 32 connected to the lower end of the scrubber device 20 by the circulation water circulation pipe 33, and a humidification pump for humidification ( 31) is provided, and the discharged water discharged after circulation is configured to be recovered to the humidification tank 32 through the circulation water circulation pipe 33, while the humidification portion 30 is uniform in the humidification tank 32 Agitator 35 for pH adjustment is provided, and the agitator 35 is configured to interlock with the chemical supply pump 42 of the chemical supply unit 40 to be described later, thereby stirring only when the chemical supply pump 42 is operated. To ensure that the pH is always maintained at a precise set point.

In addition, the drug supply unit 40 for automatically supplying the medicine so as to maintain a constant pH concentration of the humidifying unit 30, the chemical storage tank 41 for storing the drug, and the stirrer of the humidifying unit 30 ( It consists of a chemical supply pump 42 in conjunction with 35).

In addition, the biofilter device 50 for biologically decomposing and removing odor contained in the air includes a microbial carrier 51, a pressure gauge 52, and a thermometer 53 to control microorganism growth conditions in the biofilter. When the internal temperature of the biofilter device 50 is lowered, the heater 54 provided at the lower part of the biofilter device 50 is operated to maintain the temperature at an appropriate temperature.

The water spray circulation / drainage line 60 for periodically supplying water to the biofilter device 50 or draining the supplied water includes a circulation tank 61, a water spray pump 62, and a drain tank 63. And it is configured to circulate the supplied water to the circulation tank 61 or to discharge to select the drain tank (63) as needed.

The present invention to remove the odor by the configuration as described above is a deodorizing device integrated with a scrubber device and a biofilter device, the odor introduced into the deodorizing fan 11 of the inlet 10 polling (21) of the scrubber device 20 As it passes through the bed, dust and high concentrations of odors are absorbed by the water and then transferred to the air conveying passage 22.

At this time, the humidification pump 31 of the humidifying unit 30 for humidifying the scrubber device 20 is operated and the discharged water discharged after circulation is recovered to the humidification tank 32, the circulating water is circulating water circulation pipe 33 The circulation water circulation pipe 33 is configured to be connected to the humidification tank 32 from the bottom of the scrubber device 20, and the pH concentration of the recovered circulation water is measured by a pH meter 34, and then automatically set. When the pH is lowered below the set pH, the chemicals in the chemical storage tank 41 of the chemical supply unit 40 are supplied to the humidification tank 32 by using the chemical supply pump 42 so that the pH can be kept constant at a predetermined concentration. Adjust it.

Here, the stirrer 35 is installed above the humidification tank 32 for uniform pH adjustment in the humidification tank 32, and the operation of the stirrer 35 is configured to interlock with the chemical supply pump 42 to supply chemicals. It is configured to maintain the set pH by operating and stirring only when the pump 42 operates.

In addition, a water remover 23 is installed on the upper portion of the scrubber device 20 so that moisture in the air transferred to the air transfer passage 22 does not penetrate into the biofilter device 50. As described above, a plurality of air disturbance guide plates 24 are installed in order to uniformly induce air disturbances, and the air disturbance guide plates 24 are arranged in a line in an L shape on the side wall of the air transfer passage 22. It is alternately installed at intervals of about 30-60 centimeters, and a plurality of holes 24a are drilled in the L lower portion of the air disturbance guide plate 24 so that the air flow can be maintained by the drilled holes 24a. have. Here, the air disturbance guide plates 24 alternately arranged in a row in the shape of L on the side wall of the air transfer passage 22 are installed at intervals of approximately 30-60 centimeters, and it is preferable to maintain approximately 50 centimeters. .

The odor passing through the air disturbance guide plate 24 is inside the biofilter by an equal distribution plate 26 installed to maintain an angle of 20 ° -40 ° (preferably 30 °) at the end of the air transfer path 22. As it is distributed evenly to the lower portion of the biofilter device 50 and passes through the microbial carrier 51 to biologically decompose the odor is removed, the air from which the odor is removed is discharged into the atmosphere through the exhaust port.

In addition, the biofilter device 50 should be periodically supplied with water as well as to drain the supplied water, and is provided with a sprinkling fluid circulation / drainage line 60 to satisfy this function. The fluid circulation / drainage line 60 includes a circulation tank 61, a watering pump 62, and a drainage tank 63, and circulates the supplied water to the circulation tank 61 or drains the tank 63 as necessary. ) To be discharged.

When the water supplied through the water pump 62 is recovered to the circulation tank 61, the water tank line valve 64 of the water spray circulation / drainage line 60 is opened and the drainage side line is the valve 65. In order to allow the water to circulate and drain the water, the reverse order of the above is to close the water tank line valve 64 of the water solution circulation / drainage line 60 and open the drain valve side line valve 65. Gravity drainage to the drain tank (63). The drain tank 63 is equipped with a submersible pump to induce forced drainage at the water level set by the ball tower.

On the other hand, the biofilter device 50 is installed to check the microbial growth conditions inside the biofilter by installing a pressure gauge 52 and a thermometer 53 for checking the internal pressure, wherein the temperature inside the biofilter device 50 When it is lowered by operating the heater 54 provided in the lower portion of the biofilter device 50 is to increase the temperature to maintain the temperature 20 ℃ or more.

In addition, a control panel 70 capable of controlling the operation of the various devices is installed on the ground, and the upper part of the housing constituting the biofilter device 50 for inspection and roughness inside the biofilter device 50. In the inspection window 55 is provided, the inspection of the various machinery through the inspection window 55 for the inspection and maintenance of the facility inside the biofilter device 50, scrubber and microbial carrier filling layer, watering The inspection of the spray device can be done via the check cap 56.

The present invention as described above is installed in a sewage treatment plant sludge treatment facility, a manure treatment plant, a wastewater treatment plant, where a high concentration of odor is generated, and absorbs dust and high concentration odor concentration in the scrubber and lowers the concentration of odor removal efficiency introduced into the biofilter It is possible to increase the area, reduce the land area and facility cost by constructing the scrubber device and the biofilter device together, and also convert the operation of the scrubber and the biofilter facility according to the occurrence of the contaminated air. It has an effect.

As described above, the scrubber and the biofilter integrated deodorizer for removing high concentrations of odors and volatile organic compounds have been described as preferred embodiments of the present invention, but the present invention is not limited to the above-described specific preferred embodiments, and claims Without departing from the gist of the invention claimed in the present invention, any person having ordinary skill in the art to which the present invention pertains can make various modifications, and such changes are included within the technical scope of the claims. can do.

1 is a view schematically showing a scrubber device for removing dust and odor due to conventional absorption.

2 is a view schematically showing a conventional odor component and a biofilter device to remove.

Figure 3 is a schematic view showing a deodorizing device mixed with a scrubber device and a biofilter to remove the conventional malodorous components.

Figure 4 is a schematic diagram illustrating the overall operation of the deodorizing device for removing odor with a scrubber and a biofilter according to the present invention.

Figure 5 is a plan view schematically showing a deodorizer for removing odor with a scrubber and a biofilter according to the present invention.

Figure 6 is a side view schematically showing a deodorizer for removing odor with a scrubber and a biofilter according to the present invention.

7 is a view schematically showing an air disturbance guide plate according to the present invention.

[Explanation of symbols on the main parts of the drawings]

10: odor inflow unit 11: deodorization fan

20: scrubber device 21: polling layer

22: air transfer passage 23: moisture remover

24: Air disturbance guide plate 24a: hole

25: spray nozzle 26: equal distribution plate 30: humidifier 31: humidification pump 32: humidification tank 33: circulating water circulation pipe 34: pH meter 35: stirrer 40: chemical supply unit 41: chemical storage tank 42: chemical supply pump 50: Biofilter 51: Microbial carrier 52: Pressure gauge 53: Thermometer 54: Heater 55: Inspection window 60: Sprinkler circulation / drainage line 61: Circulation tank 62: Sprinkler pump 63: Drain tank 64, 65: Valve

Claims (10)

In the deodorizing device equipped with a scrubber and a biofilter to remove odor and volatile organic compounds, An inlet for introducing a malodor into the scrubber device by driving the deodorizing fan; A scrubber device for removing odors in the air introduced from the inlet while passing through the polling layer; A humidifier for supplying moisture to the scrubber device and a drug supply unit for automatically supplying a chemical to maintain a constant pH concentration of the humidifier; A biofilter processing apparatus for biologically decomposing and removing odors while the air transferred from the scrubber device passes through the microbial carrier; The scrubber and biofilter integrated for removing high concentration odor and volatile organic compounds, characterized in that it comprises a sprinkling fluid circulation / drainage line for periodically supplying water to the biofilter processing device or draining the supplied water Deodorizer The method according to claim 1, And the scrubber device and the biofilter device are integrally installed so that the scrubber device and the biofilter device can simultaneously purify the air containing malodor and VOCs. The method according to claim 1, The humidifying part for supplying water to the scrubber device is provided with a humidification tank connected to the lower end of the scrubber device by a circulation water circulation pipe and a humidification pump for humidification, and the discharged water discharged after circulation is humidified through the circulation water circulation pipe. Scrubber and biofilter integrated deodorizing device, characterized in that configured to be recovered to the tank. The method according to claim 1, The humidifying unit for supplying water to the scrubber device is provided with a pH meter for detecting the pH concentration of the recovered circulating water, and automatically operates the chemical supply pump when the pH concentration measured by the pH meter falls below the set value. By supplying the chemicals to the humidification tank of the chemical supply unit, the scrubber and biofilter integrated deodorizing device, characterized in that configured to maintain a constant pH at a predetermined concentration at all times. The method according to claim 1, At least one or more air transport passages connecting the scrubber device and the biofilter device are installed to cross each other, and an air disturbance guide plate for uniformly inducing air disturbance is provided. Integral deodorizer. The method according to claim 5, Scrubber and biofilter integrated deodorizing device is characterized in that the air disturbance guide plate is installed in the L-shape, alternately arranged on the side wall at intervals of 30-60 centimeters. The method according to claim 5 to 6, Scrubber and bio-filter integrated deodorizing device is characterized in that a plurality of holes are formed in the air perturbation guide plate is installed in the air transfer passage to maintain the flow of air. The method according to claim 1, Scrubber and biofilter integrated deodorizing device is provided at the end of the air transfer passage is provided with an equal distribution plate having an angle of 20 ° to 40 ° so that the conveyed air is evenly distributed into the interior of the bio filter device. The method according to claim 1, A humidifier for supplying moisture to the scrubber device is provided with a stirrer for uniform pH adjustment in the humidification tank, and the agitator is configured to interlock with a chemical supply pump of the chemical supply unit, so that the stirring operation is performed only when the chemical supply pump is operated. Scrubber and biofilter integrated deodorizing device, characterized in that to always maintain the precise pH value. The method according to claim 1, Sprinkling fluid circulation / drainage line for periodically supplying water to the biofilter device is provided with a circulation tank, a sprinkling pump, and a drainage tank, and if necessary, the supplied water can be circulated to the circulation tank or discharged to the drainage tank. Scrubber and biofilter integrated deodorizing device, characterized in that is configured to.

Images