KR102173575B1 - Wet type scrubbing module for odor removal and wet type scrubbing equipment using the same - Google Patents

Abstract

In the present invention, an inlet through which malodorous gas is introduced and an outlet through which the introduced malodorous gas is sucked and discharged by the exhaust unit is formed, and the inlet and the outlet are communicated to each other and water is accommodated. -) When the pressure is reached, the body is provided with a storage space where the water level rises, and is provided on the inlet side to supply odor gas, but one end protrudes so as to be immersed in the water level and increases the flow rate of the odor gas inside. Atomizing module and storage space including a nozzle unit having a gas flow path gradually narrowing the flow cross-sectional area so that the flow cross section is formed, and a collision means for minimizing the odor gas by colliding with the odor gas injected from the nozzle unit provided at one end of the nozzle unit It provides a wet scrubbing module for removing odors, including a treatment liquid supply unit for supplying a treatment liquid to a storage space to remove odor-causing substances of bad odor gas dissolved in water based on a pH concentration.
Therefore, by arranging a plurality of wet scrubbing modules composed of treatment liquids of different components in series and treating them while passing through the odor gas step by step, it is possible to effectively remove various and wide range of odor-causing substances generated from food waste.

Description

Wet type scrubbing module for odor removal and wet type scrubbing equipment using the same}

The present invention relates to a wet scrubbing module for odor removal and a wet scrubbing facility for odor removal using the same, and more particularly, to a wet scrubbing module for odor removal for removing odor from food waste and a wet scrubbing facility for odor removal using the same will be.

In general, food waste, which is essentially generated by daily life, has a high moisture content and is easily perishable, so it generates a lot of odors, as well as a lot of odors in the treatment process.

On the other hand, as an apparatus for treating the above-described malodorous gas, the gas scrubbing apparatus includes a wet scrubbing apparatus that dissolves and treats substances that cause odor in water, and a burning scrubbing apparatus that burns and treats combustible gases. Etc. Among them, the wet scrubbing device is mainly used because of its excellent effect compared to other methods and its economical efficiency in terms of process. Here, as an example of the wet scrubbing device, a reaction tube into which a reaction gas is introduced into Korean Patent Laid-Open No. 2010-0046430, a reactor connected to the reaction tube to convert the introduced reaction gas into plasma, and water in the reactor A gas scrubbing apparatus and a gas scrubbing method for scrubbing the reaction gas, including a water injection unit for injection, have been disclosed.

However, the conventional wet scrubbing apparatus has a problem in that it does not effectively remove the odor in response to the variety of odor-causing substances generated from food waste.

An object of the present invention is to provide a wet scrubbing module for removing odors capable of effectively removing a wide range of odor-causing substances generated from food waste, and a wet scrubbing facility for removing odors using the same.

According to an aspect of the present invention, the present invention has an inlet through which malodorous gas is introduced and an outlet through which the introduced malodorous gas is sucked and discharged by an exhaust unit, and the inlet and the outlet are in communication with water. A body provided with a storage space in which the water level rises when a negative (-) pressure state is reached by the suction force of the exhaust unit; A nozzle provided at the inlet side to supply the malodorous gas, one end protruding to be immersed in the water with an elevated water level, and having a gas flow passage gradually narrowing in a flow cross-sectional area to increase the flow rate of the malodorous gas. An atomizing module including a collision means provided at one end of the nozzle unit and colliding with the odor gas injected from the nozzle unit to refine the odor gas; And a treatment liquid supply unit supplying a treatment liquid to the storage space to remove the odor-causing substance of the odor gas dissolved in water in the storage space based on a pH concentration.

According to another aspect of the present invention, in the present invention, an inlet through which malodorous gas is introduced and an outlet through which the introduced malodorous gas is sucked and discharged by a suction fan of the exhaust unit is formed, and the inlet and the outlet communicate with each other. The body is provided with a storage space in which the water level rises when water is accommodated, and when the suction power of the exhaust unit becomes negative (-) pressure, and the body is provided at the inlet to supply the odor gas, and one end is at the water level. Is protruded to be immersed in the elevated water, and a gas flow passage having a flow cross-sectional area gradually narrowing so as to increase the flow speed of the malodorous gas is formed therein, and a nozzle unit provided at one end of the nozzle unit and sprayed from the nozzle unit An atomizing module including a collision means for minimizing the malodorous gas by colliding with the malodorous gas, and in the storage space to remove the malodor-causing substances of the malodorous gas dissolved in water in the storage space based on a pH concentration. Including a plurality of wet scrubbing modules including a treatment liquid supply unit for supplying a treatment liquid, the wet scrubbing modules are each of the wet scrubbing modules are formed of components corresponding to different pH concentrations of the treatment liquid and are arranged in series with each other We provide wet scrubbing equipment for odor removal.

The wet scrubbing module for odor removal and the wet scrubbing facility for odor removal using the same according to the present invention provides the following effects.

First, it is possible to effectively remove various odor-causing substances generated from food waste through a plurality of wet scrubbing modules composed of treatment liquids of various components.

Second, it is possible to further improve the deodorizing effect of the odor gas through the atomizing module in which the odor gas is sprayed and refined in water.

Third, since the scrubbing fluid is neutralized with a weakly toxic component as well as the deodorization of the odor gas, water treatment of the scrubbing fluid can be simplified later.

Fourth, since the treatment liquid is pre-mixed with water and then supplied to the storage space and recycled, the treatment liquid and water are evenly mixed to change the liquidity of water more effectively.

1 is a block diagram schematically showing the configuration of a wet scrubbing module for removing odor according to an embodiment of the present invention.
2 is a block diagram showing an operating state of the wet scrubbing module of FIG. 1.
3 is an enlarged view of part A of FIG. 2.
4 is a block diagram schematically showing the configuration of a wet scrubbing facility for removing odor according to an embodiment of the present invention.
5 is a block diagram showing a control flow of a control unit of a gas flow type scrubbing facility.

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

First, referring to FIGS. 1 and 2, a wet scrubbing module 500 (hereinafter referred to as a'wet scrubbing module') for removing odor according to an embodiment of the present invention includes a body 100 and an atomizing module 200. And, it includes a processing liquid supply unit 300.

The body 100 has an inlet 101 through which malodorous gas is introduced, and an outlet 102 through which the introduced malodorous gas is sucked and discharged by an exhaust unit, and the inlet 101 and the A storage space 103 is provided through which the discharge port 102 is communicated and water 1 is accommodated.

Here, the body 100, as shown in Fig. 2, when the suction fan 130 of the exhaust unit operates, the storage space 103 is in a negative (-) pressure state slightly lower than atmospheric pressure by the suction force of the exhaust unit. As a result, the water level of the water 1 in the storage space 103 rises so that the atomizing module 200 is immersed.

Furthermore, the body 100 includes a plurality of blocking plates 110 disposed at an upper side of the atomizing module 200 in the storage space 103 to be spaced apart from each other along the vertical direction, and the blocking plate 110 ) Is provided with an eliminator 120 disposed above them.

Here, the blocking plate 110 is arranged in a transverse direction in a plate shape so that the odor gas flowing out from the atomizing module 200 collides to form fine air bubbles.

The eliminator 120 is formed of a stainless steel mesh, etc., and serves to remove moisture contained in the odor gas.

On the other hand, the exhaust unit is connected to the outlet 102 side of the body 100, a suction fan 130 for inhaling and discharging gas in the storage space 103, and a driving motor for driving the suction fan 130 It contains (131).

The atomizing module 200 is provided on the inlet 101 side to supply the malodorous gas to the body 100, and includes a nozzle part 210 and a collision means 220.

The nozzle unit 210 has a flow cross-sectional area at one end so as to be immersed in the water 1 with an elevated water level, and odor gas flows into the other side, and increases the flow rate of the odor gas flowing therein. A gas flow path 211 that gradually narrows is formed.

The collision means 220 is provided at one end of the nozzle part 210 through which the odor gas flows out, and the odor gas injected from the nozzle part 210 collides with each other to refine the odor gas. Incidentally, the collision means 220 is formed of a collision plate arranged in a transverse direction with respect to the outflow direction of the malodorous gas in a plate shape, and is positioned to be spaced upward from one end of the nozzle part 210, The outflowing odor gas collides with the lower surface and spreads to the side, and the odor gas is refined. Here, the collision means 220 may further promote refinement of the odor gas by stacking and arranging the plurality of collision plates to be spaced apart from each other in the vertical direction.

In the above-described, atomizing module 200, when the operation is stopped, the water level decreases and the water 1 is filled into the nozzle unit 210, but during operation, the storage space 103 becomes a negative pressure state and the nozzle unit ( The water (1) in 210) flows into the storage space 103 and the water level of the storage space 103 rises. In this case, the collision means 220 is immersed in the water (1), and the odor gas is increased and flowed by the nozzle unit 210, and then the collision means 220 in the water (1) is refined. Has been.

The treatment liquid supply unit 300 is provided with a treatment liquid 2 in the storage space 103 to remove the odor-causing substance of the odor gas dissolved in the water 1 in the storage space 103 based on a pH concentration. Serves to supply. Prior to this, the odor gas changes the liquidity of the water 1 as the odor-causing material is dissolved in the odor gas while contacting the water 1 in the storage space 103, thereby changing the liquidity of the water 1 Based on the pH concentration, the treatment solution 2 is used to neutralize and remove substances causing odors continuously and effectively.

In detail, the treatment liquid supply unit 300 includes a water circulation line 310, a circulation pump 320, and a treatment liquid supply line 330. First, the water circulation line 310 has one end connected to the lower part of the body 100 and the other end connected to the upper part of the body 100, so that the water 1 under the storage space 103 It serves to circulate to the upper portion of the storage space 103.

The circulation pump 320 is provided on the water circulation line 310 to force the water 1 to flow, and a known pump may be applied.

The treatment liquid supply line 330 has one end connected to the water circulation line 310 behind the supply pump to supply the treatment liquid 2 to the water circulation line 310, and the treatment liquid ( 2) and the water (1) are premixed to be supplied to the storage space (103).

Further, the treatment liquid supply line 330 includes a treatment liquid line 331 connected to a treatment liquid storage tank 332 in which the treatment liquid 2 is stored, and the treatment liquid line 331 A control valve 333 capable of controlling the supply of the treatment liquid 2 is provided. Here, the control valve 333 may be applied to a known flow valve, and a detailed description thereof will be omitted.

3, the treatment liquid supply line 330 causes the end of the treatment liquid line 331 to protrude into the water circulation line 310, so that the treatment liquid 2 It is supposed to be supplied from the middle. This is to facilitate mixing with the water 1 by allowing the treatment liquid 2 to be supplied to a portion at which the flow rate of the water 1 is faster.

The treatment liquid 2 may apply various liquid components corresponding to the odor-causing substances, such as an acidic solution, an alkali solution, and a neutral solution, respectively, corresponding to the odor-causing substances of the odor gas.

On the other hand, the wet scrubbing module 500 is provided with a sludge discharge unit 400 capable of discharging the sludge in the storage space 103 below the body 100. The sludge discharge unit 400 communicates with the lower portion of the body 100 to discharge the sludge collected under the storage space 103, and is connected to the drain line 410 to provide the sludge. And a drain tank (Sump) 420 in which is stored, and a discharge valve 430 provided on the drain line 410. Here, a detailed description of the sludge discharge unit 400 is similar to a known sludge discharge line, and thus will be omitted.

In addition, the wet scrubbing module 500 further includes a filtering unit 140 communicated between the exhaust port 102 and the exhaust unit, and residual odor components while the odor gas exhausted from the exhaust port 102 passes. By being removed, the odor contained in the odor gas is more completely removed. At this time, the filtering unit 140 may be variously applied as long as it has a configuration capable of adsorbing or removing residual odors such as an activated carbon adsorption tower in which activated carbon is disposed.

The wet scrubbing module 500 applied water (1) as a scrubbing fluid, but this is a preferred embodiment applied for easy handling and economical reasons, and various scrubbing fluids such as oil can be applied instead of the water (1) described above. Of course.

In addition, the malodorous gas includes all of the malodorous gases generated from food waste or the malodorous gases generated in the process of treating food waste, and may include various malodorous gases such as a manure treatment plant, a livestock house, and a sewage treatment plant.

Hereinafter, the operation of the wet scrubbing module 500 will be described. First, when the intake fan 130 of the exhaust part is operated while water 1 is stored in the storage space 103 of the body 100, the interior of the storage space 103 is in a negative pressure state lower than atmospheric pressure. As it becomes, a difference in air pressure from the outside occurs.

When the pressure difference occurs in this way, the water level in the storage space 103 increases as shown in FIG. 2, so that the collision means 220 is immersed in the water 1, and the malodorous gas is transferred to the atom through the inlet 101. It is introduced into the aging module 200.

The odor gas introduced into the atomizing module 200 is injected into the water 1 inside the storage space 103 in a state in which the flow velocity is rapidly increased by the nozzle unit 210 and collides with the collision means 220 It is in the form of a fine droplet and comes into contact with water (1).

In this way, the odor gas in contact with the water 1 in the storage space 103 is deodorized while the odor-causing substance is dissolved in the water 1 and then discharged through the outlet 102. At this time, the malodorous gas is deodorized and the dust contained in the malodorous gas is also dedusted and discharged.

On the other hand, at this time, while the water (1) is in contact with the odor gas, the odor-causing substance of the odor gas is dissolved to change the liquidity. Accordingly, the water (1) having the changed liquidity is neutralized through the treatment liquid supply unit 300 It not only improves the persistence and effect of odor removal, but also facilitates water treatment of water (1) afterwards.

Hereinafter, a wet scrubbing facility 600 (hereinafter referred to as'wet scrubbing facility') for removing odors using the wet scrubbing module will be described. Prior to this, since each of the plurality of wet scrubbing modules 510, 520, and 530 in the wet scrubbing facility 600 is substantially the same as the wet scrubbing module 500 of FIGS. 1 and 2 described above, a detailed description thereof will be omitted. do. In addition, the same reference numerals denote the same configuration, and the following will focus on the parts that are roughly different.

Referring to FIG. 4, the wet scrubbing facility 600 includes a plurality of the wet scrubbing modules 510, 520, and 530, wherein the wet scrubbing modules 510, 520, and 530 each have the treatment liquid 2 at different pH concentrations. Each consists of different components to correspond and are arranged in series with each other.

In detail, the wet scrubbing modules 510, 520, and 530 each include an alkali neutralization module, an acid neutralization module, and a neutral oxidation module according to the components of the treatment liquid 2.

In the alkali neutralization module, the treatment liquid 2 is composed of a component that neutralizes alkaline water having alkalinity, and an alkaline odor-causing substance (alkaline odor) is dissolved in the odor gas to make the storage space 103 ) Neutralizes the water (1) in it. Here, sulfuric acid (H2SO4), hydrochloric acid (HCl), phosphoric acid (H3PO4), etc. can be applied as the treatment liquid 2 for neutralizing the alkaline water, but if it can neutralize the alkalinity, various components can also be applied. .

The acid neutralization module is composed of a component in which the treatment liquid 2 neutralizes acidic water having acidity, and a storage space in which an acidic odor-causing substance (acid odor) is dissolved in the odor gas to become acidic ( It plays a role of neutralizing the water (1) in 103). Here, sodium hydroxide (NaOH), calcium hydroxide (Ca(OH)2), magnesium hydroxide (Mg(OH)2), etc. can be applied as the treatment liquid (2) for neutralizing the acidic water. If it can be neutralized, it can be applied with various ingredients.

The neutral oxidation module is composed of a component that oxidizes neutral water in which the treatment liquid 2 is neutral, and neutral odor-causing substances such as aldehyde or styrene (neutral odor) are dissolved in the odor gas. It serves to oxidize the water (1) in the storage space (103). Here, hypochlorous acid (HClO), sodium hypochlorite (NaOCl), etc. can be applied as the treatment liquid 2 for oxidizing neutral water, but if the neutral water can be oxidized, various components can also be applied.

As described above, the wet scrubbing facility 600 applies an alkali neutralization module, an acid neutralization module, and a neutral oxidation module, respectively, as described above, to obtain an effective and wide range of deodorizing effects for substances causing odors having different characteristics. have.

The wet scrubbing facility 600 is preferably connected in series from the plurality of wet scrubbing modules 510, 520 and 530 in the order of the alkali neutralization module, the acid neutralization module, and the neutral oxidation module. This is because, in the case of food waste odor gas, the content of the odor-causing substance is high in order of alkali odor, acid odor, and neutral odor, which have alkaline properties.

On the other hand, the wet scrubbing facility 600 maintains an appropriate negative pressure because the suction power of the exhaust part is not sufficiently low with respect to the initially located wet scrubbing module 510, 520, 530 as the wet scrubbing modules 510, 520, and 530 are connected in series. It can be difficult to do.

Accordingly, the wet scrubbing facility 600 includes a pressure sensor 240 and a damper 230 in the wet scrubbing modules 510, 520, and 530 located initially, so that the storage space 103 can maintain an appropriate negative pressure state. . The pressure sensor 240 is provided in the atomizing module 200 as sensing an internal pressure state of the wet scrubbing modules 510, 520, and 530 located at the beginning.

The damper 230 is provided in the atomizing module 200 and serves to allow the wet scrubbing modules 510, 520 and 530 to maintain a negative pressure state while reducing the flow rate. Meanwhile, reference numerals 300a, 300b, and 300c denote a treatment liquid supply unit using a treatment liquid 1 of different components, respectively, and are substantially the same as the treatment liquid supply unit 300 of FIGS. 1 and 2.

Referring to FIG. 5, the wet scrubbing facility 600 receives pressure information of the wet scrubbing module 510, 520, 530 initially located from the pressure sensor 240 by the control unit 540, and correspondingly, the damper 230 ) Can be adjusted to adjust the sound pressure state, and the sound pressure level of each of the wet scrubbing modules 510, 520 and 530 can be adjusted by controlling the driving motor 131 of the exhaust unit.

In addition, although not shown, the wet scrubbing facility 600 includes a pH sensor in each of the wet scrubbing modules 510, 520 and 530 to detect the pH concentration of the water 1 in each of the storage spaces 103, The control unit 540 may adjust the neutralization degree or acidity of the water 1 by controlling the control valve 333 in the treatment liquid supply unit of each wet scrubbing module 510, 520 and 530 in response to information from the respective pH sensors.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100... body 101... inlet
102... outlet 110... block plate
120... Eliminator 130... suction fan
131... drive motor 140... filter section
200... atomizing module 210... nozzle part
211... gas flow 220... collision means
230... damper 240... pressure sensor
300... Treatment liquid supply part 310... Water circulation line
320...Circulation pump 330... Treatment liquid supply line
331.. Treatment liquid line 332... Treatment liquid storage tank
333... control valve 400... sludge discharge
410... drain line 420... drain tank
430... Drain valve 500,510,520,530... Wet scrubbing module
540... control 600... wet scrubbing plant

Claims (9)

An inlet through which malodorous gas is introduced and an outlet through which the introduced malodorous gas is sucked and discharged by the exhaust unit are formed, and the inlet and the outlet are communicated with each other to accommodate water. A body provided with a storage space in which the water level rises when the (-) pressure state is reached;
A nozzle provided at the inlet side to supply the malodorous gas, one end protruding to be immersed in the water with an elevated water level, and having a gas flow passage gradually narrowing in a flow cross-sectional area to increase the flow rate of the malodorous gas. An atomizing module including a collision means provided at one end of the nozzle unit and colliding with the odor gas injected from the nozzle unit to refine the odor gas; And
A wet scrubbing module for removing odor comprising a treatment liquid supply unit supplying a treatment liquid to the storage space to remove a substance causing odor of the odor gas dissolved in water in the storage space based on a pH concentration. The method according to claim 1,
The body,
Blocking plates disposed on the upper side of the atomizing module in the storage space, a plurality of blocking plates disposed to be staggered while being spaced apart from each other,
A wet scrubbing module for removing odor further comprising an eliminator disposed above the blocking plates. The method according to claim 1,
The collision means,
Wet scrubbing module for odor removal formed of a plurality of collision plates spaced in the vertical direction. The method according to any one of claims 1 to 3,
The processing liquid supply unit,
A water circulation line having one end connected to the lower part of the body and the other end connected to the upper part of the body, and circulating water under the storage space to the upper part of the storage space,
A circulation pump provided on the water circulation line,
A wet scrubbing module for removing odors comprising a treatment liquid supply line having one end connected to the water circulation line behind the circulation pump to supply the treatment liquid to the water circulation line. The method of claim 4,
The treatment liquid,
Corresponding to the components of the odor gas, a wet scrubbing module for removing odors of at least one selected from an acidic solution, an alkali solution, and a neutral solution, respectively. An inlet through which malodorous gas is introduced and an outlet through which the introduced malodorous gas is sucked and discharged by a suction fan of the exhaust unit is formed, and the inlet and the outlet are communicated with each other and water is accommodated. When the water level becomes negative (-) pressure, the body is provided with a storage space in which the water level rises, and the odor gas is supplied by being provided at the inlet side, and one end protrudes so as to be immersed in the water whose water level is raised, and To increase the flow rate of the malodorous gas, a nozzle portion having a gas flow passage whose flow cross-sectional area gradually narrows, and the malodorous gas provided at one end of the nozzle portion and injected from the nozzle portion collide with each other to prevent the malodorous gas. An atomizing module including a collision means for miniaturization, and a treatment liquid supply unit supplying a treatment liquid to the storage space to remove the odor-causing substance of the odor gas dissolved in water in the storage space based on a pH concentration. Including a plurality of wet scrubbing modules,
Each of the wet scrubbing modules is a wet scrubbing facility for removing odors in which the treatment liquid is formed of components corresponding to different pH concentrations and is arranged in series with each other. The method of claim 6,
The processing liquid supply unit,
A water circulation line having one end connected to the lower part of the body and the other end connected to the upper part of the body, and circulating water under the storage space to the upper part of the storage space,
A circulation pump provided on the water circulation line,
A wet scrubbing facility for removing odor comprising a treatment liquid supply line having one end connected to the water circulation line behind the circulation pump to supply the treatment liquid to the water circulation line. The method according to claim 6 or 7,
The wet scrubbing module,
An alkali neutralization module in which the treatment liquid neutralizes alkaline water,
An acid neutralization module in which the treatment liquid neutralizes acidic water,
Wet scrubbing facility for removing odors comprising a neutral oxidation module in which the treatment liquid oxidizes neutral water. The method of claim 8,
The wet scrubbing module,
The alkali neutralization module, the acid neutralization module, and the neutral oxidation module in series in order to remove odor removal wet scrubbing equipment.

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