KR101692317B1 - Deodorization apparatus and method with complex treatment - Google Patents

Abstract

According to an aspect of the present invention, provided is a complex treatment-type deodorization apparatus comprising: a biological deodorization means (10) which guides malodorous gas from an inlet (11) to carriers (13) and a water nozzle (15); a water washing deodorization means (20) which is connected to a downstream end of the biological deodorization means (10), and which includes a solution nozzle (25) on a deodorization path; a cleaning liquid means (30) which is connected to the solution nozzle (25) of the water washing deodorization means (20), and which adds a cleaning liquid; and a control means (40) which controls the biological deodorization means (10), the water washing deodorization means (20), and the cleaning liquid means (30) by using a set algorithm in response to a change in state of the malodorous gas. According to another aspect of the present invention, provided is a complex treatment-type deodorization method. Accordingly, provided are effects of increasing flexibility and economic efficiency of deodorization treatment by optimally dealing with a change in inflow condition in a process of collecting and removing a relatively large amount of malodorous gas through a series of steps in a sewage treatment facility or the like.

Description

[0001] The present invention relates to a deodorization apparatus and method,

The present invention relates to deodorization of odorous gas, and more particularly, to a deodorization apparatus and a deodorization method of a complex treatment system for collecting odorous gas generated in a sewage treatment plant and removing it by a series of processes.

It is regulated for the prevention of environmental pollution because various odor gas is generated naturally or artificially in living environment. In particular, components such as ammonia, methyl mercaptan, hydrogen sulfide, methyl sulfide, methyl disulfide, trimethyl amine, acetaldehyde, and styrene are prescribed as regulated substances. Therefore, in order to meet environmental regulations, a combination of combustion method, cleaning method, adsorption method, and biological method is used in a large scale odor gas generating facility such as a sewage treatment plant.

Korean Patent Registration No. 1002425 (Prior Document 1) and Korean Patent Registration No. 0901300 (Prior Document 2) are known as prior art documents which can be referred to in connection with this.

Prior Art 1 discloses an inflow path passing through the inner chamber floor of the deodorizing chamber; A storage tank for storing a cleaning liquid on the outside of the deodorization chamber; A cleaning liquid supply path piped from the storage tank to a deodorization chamber; A spray nozzle for spraying a cleaning liquid from the cleaning liquid supply path; A rinse solution discharge line to be piped to the deodorization chamber; And a deodorizing gas outlet communicating with the deodorizing chamber. Therefore, it is expected to increase the deodorization rate by complex deodorization, and to be easy to clean and maintain.

The prior art 2 includes a wet tank having an intake duct and an exhaust duct connected to a suction fan, a chemical solution spray nozzle housed in the wet tank, A wet deodorization means, a chemical deodorization means, a wet deodorization assembly having a damper; And a dry deodorization assembly having a filter tank and a dry tank connected to the wet tank. Therefore, it is expected to provide eco-friendly facilities and smooth maintenance of media replacement.

However, according to the above-mentioned prior art documents, there is room for improvement in terms of flexibility to change to an appropriate process in accordance with inflow conditions of odorous gas, and economical efficiency.

1. Korean Patent Registration No. 1002425 entitled "Circulating type deodorization system" (published on Dec. 21, 2010). 2. Korean Patent Registration No. 0901300 entitled "Wet-Dry Type Combined Deodorizing Apparatus" (Published on Jun.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the prior art, and it is an object of the present invention to provide a method and apparatus for collecting a relatively large amount of odorous gas in a sewage treatment plant, And to provide a deodorization apparatus and method for a combined treatment system.

To achieve the above object, according to one aspect of the present invention, there is provided an apparatus for deodorizing malodorous gas by a combined treatment method, comprising: a bio-deodorizing means for introducing the malodorous gas from an inlet to a carrier and a water nozzle; A water washing and deodorizing means connected to a downstream end of the bio-deodorizing means and having a solution nozzle on a deodorization path; A cleaning liquid means connected to a solution nozzle of the water cleaning and deodorizing means to add a cleaning liquid; And control means for controlling the bio-deodorizing means, the water washing and deodorizing means, and the washing liquid means with an algorithm set in correspondence with the state change of the odor gas.

In the detailed construction of the present invention, the bio-deodorizing means includes a heater for adjusting an internal temperature, and the heater is provided with a heat source provided on an external heat collecting plate.

In the detailed construction of the present invention, the water washing and deodorizing means is characterized by comprising a porous body and a water nozzle on the upper side of the solution nozzle.

In the detailed construction of the present invention, the cleaning liquid means is characterized in that the washing stock solution stored in the chemical tank is diluted with water and stored in a solution tank in a solution state of a predetermined concentration.

In a detailed configuration of the present invention, the control means includes a gas analyzer provided on the inlet, a concentration detector provided on the solution tank, and a controller for storing and executing the set algorithm.

According to another aspect of the present invention, there is provided a method for deodorizing malodorous gas based on the deodorizing apparatus of claim 1, the method comprising: (A) activating a water nozzle when an odor gas inflow concentration at an inlet exceeds a set value; And (B) performing the reprocessing through the circulation pipe when the odor gas discharge amount of the discharge port exceeds the set value.

According to a further aspect of the present invention, in the step (B), when the amount of the odorous gas discharged is not reduced to the set condition, the concentration of the cleaning liquid injected by the solution nozzle is changed.

As described above, according to the present invention, a relatively large amount of malodorous gas is captured at a sewage treatment plant and removed in a series of processes, thereby optimizing the change in the inflow condition and improving the flexibility and economical efficiency of the deodorization process.

1 is a block diagram showing a main portion of a system according to the present invention in a front view;
Figure 2 shows a schematic representation of a major part of the system according to the invention in plan view
Figure 3 is a schematic view showing the cleaning liquid means of the system according to the invention
4 is a block diagram showing control means of the system according to the present invention;

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

According to one aspect of the present invention, an apparatus for deodorizing odorous gas by a combined treatment method is proposed. But is not necessarily limited to, large-scale, odorous gas generating facilities such as sewage treatment plants. The odor gas to be treated is not limited to legal regulatory substances such as hydrogen sulfide and methyl sulfide.

According to the present invention, the bio-deodorizing means 10 guides the malodorous gas from the inlet 11 to the carrier 13 and the water nozzle 15. The bio-deodorizing means (10) receives the lower support (13) and the upper water nozzle (15) based on the cylindrical body structure. It is preferable that the inlet 11 is arranged above the water nozzle 15. The carrier 13 is a biofilter based on ceramics, fibers, activated carbon, basalt, foamed polymer, etc., and removes components such as hydrogen sulfide. The water nozzle 15 is arranged to evenly spray water onto the cross-section of the tubular body. A circulation pump 18 for transferring the water is provided on the pipe connected to the water nozzle 15.

The bio-deodorizing means 10 includes a heater 17 for adjusting the internal temperature and the heater 17 is provided with a heat source by a heat collecting plate 27 provided on the outside do. It is necessary to maintain the temperature inside the tubular body according to the type of the microorganism contained in the carrier 13. [ For example, in the case of hydrogen sulfide, thiobacillus, which is a microorganism having an excellent resolution and a high growth rate, is used. Although the heater 17 is shown on the upper side of the water nozzle 15 in Fig. 1, it can be additionally installed at other positions. It is advantageous to install the heat collecting plate 27 for collecting solar heat at the upper end of the discharge port 21 located at the highest position. A temperature sensor and a valve may be provided on the pipe leading from the heat collecting plate 27 to the heater 17 for adjusting the temperature inside the body.

According to the present invention, the water washing and deodorizing means (20) connected to the downstream end of the bio-deodorizing means (10) has a solution nozzle (25) on the deodorization path. The water washing and deodorizing means 20 receives the solution nozzle 25 for spraying the cleaning liquid on the basis of the cylindrical body structure in the lower space. And the discharge port 21 is provided in the vertical direction of the cylindrical body. The solution nozzle 25 is arranged to evenly spray the water onto the cross-section of the tubular body. That is, as shown in FIG. 1, it is preferable that the solution nozzle 25 has a multilayer structure for smooth mixing with the upward odor gas. In some cases, the solution nozzle 25 may be imparted with a pivot motion within a predetermined angle range on a vertically disposed center axis. On the conduit connected to the solution nozzle 25, a circulation pump 28 for transferring the solution is provided. The solution uses sodium hypochlorite or a material that has equivalent or better physical properties and is usable for food.

The water washing and deodorizing means 20 is characterized by comprising a porous article 22 and a water nozzle 15 on the upper side of the solution nozzle 25. [ The porous article 22 is disposed above the solution nozzle 25 using a material having chemical resistance, abrasion resistance, and heat resistance. The pores of the porous article 22 can be set larger than the carrier 13 described above. The water nozzle 15 is installed on the upper side of the porous article 22 and connected to the circulation pump 18 on the channel. A demister (23) for removing droplets is arranged above the water nozzle (15).

Here, as shown in FIG. 1, the bio-deodorizing means 10 may be provided in a plurality of two or more with the water-washing and deodorizing means 20 as a center. The plurality of bio-deodorizing means 10 is connected to the bio-deodorizing means 10 as a parallel circuit. Thus, the processing capacity of the bio-deodorizing means 10 is increased or decreased according to the amount of the odor gas to be treated.

2, two bio-deodorizing means 10 are connected to one deodorizing pan 41 in parallel. The deodorizing fan (41) guides the malodor gas to the inlet (11) of the bio-deodorizing means (10).

According to the present invention, the cleaning liquid means (30) is connected to the solution nozzle (25) of the water cleaning and deodorizing means (20) to add a cleaning liquid. The cleaning liquid means 30 dilutes the sodium hypochlorite having an effective chlorine concentration of 2500 to 3500 ppm in the range of pH 5 to 7 to about 25 to 80 times and injects the cleaning liquid through the solution nozzle 25 of the water cleaning / Thereby performing sterilization for odor gas.

The cleaning liquid means 30 is characterized in that the washing stock solution stored in the chemical tank 31 is diluted with water and stored in the solution tank 33 in a solution state of a predetermined concentration. 3, the solution tank 33 is connected to the chemical tank 31 on one side and is connected to the solution nozzle 25 and the tubular body on the other side. The cleaning liquid supplied to the solution nozzle 25 is recovered to the solution tank 33 along a separate channel on the bottom surface of the cylindrical body. Water for dilution of the washing stock solution may be used, but a pH adjusting agent used for food may be added.

According to the present invention, the control means (40) controls the bio-deodorizing means (10), the water washing and deodorizing means (20), and the washing liquid means (30) to be. The state of the malodorous gas is not limited to the main input of the inflow amount. That is, it may include physical factors such as the kind of the odor gas and the temperature.

The control means 40 includes a gas analyzer 42 provided on the inlet 11, a concentration detector 43 provided on the solution tank 33, And a controller (48). The controller 48 comprises a microprocessor, a memory, and a microcomputer circuit having an input / output interface. The set control algorithm is stored and updated in the memory in the form of a main program and a subroutine program. A gas detector 44 and the like to be described later are connected to the input interface in addition to the gas analyzer 42 and the concentration detector 43. In addition to the deodorizing fan 41 and the circulation pumps 18 and 28, (46) and the like are connected. The gas analyzer 42 detects the concentration of the malodorous gas but can also be configured to generate a signal such as a flow rate.

As an example of the operation, the odor gas collected downward through the carrier 13 in the bio-deodorizing means 10 is conveyed to the lower side of the water washing and deodorizing means 20 and mixed with the washing liquid fine particles while passing through the solution nozzle 25 Is discharged to the discharge port 21 in a clean state via the porous article 22, the water nozzle 15 and the demister 23.

According to another aspect of the present invention, there is proposed a method for deodorizing odorous gas based on the deodorizing apparatus of claim 1. The algorithm executed by the program of the controller 48 based on the hardware of the bio-deodorizing means 10, the water washing and deodorizing means 20, and the cleaning liquid means 30 is essential.

Step (A) of the present invention includes a process of operating the water nozzle 15 when the odor gas inflow concentration of the inlet 11 exceeds a set value. When the inflow concentration of the malodorous gas is equal to or lower than the set value, the water nozzle 15 is stopped and only the carrier 13 is operated. The controller 48 executes the corresponding program in response to the input of the gas analyzer 42. Thus, the object of increasing the flexibility and economic efficiency of the deodorizing process can be achieved.

Step (B) according to the present invention includes a process of performing reprocessing through the circulation pipe 35 when the odor gas discharge amount of the discharge port 21 exceeds a set value. The circulation pipe (35) is connected to a conduit connecting the bio-deodorizing means (10) and the water washing and deodorizing means (20) on the downstream side of the demister (23). A flow path switching valve (46) for interrupting the opening and closing of the flow path of the circulation pipe (35) is provided on the pipe. The controller 48 executes the corresponding program in response to the input of the gas detector 44. Since the components of the odorous gas vary, the gas detector 44 can be configured as a combination of gas sensors that detect specific components. Thus, flexibility and efficiency of treating a large amount of malodorous gas can be enhanced.

As a detailed configuration of the present invention, the concentration of the cleaning liquid injected into the solution nozzle (25) is changed when the amount of the odorous gas discharged in the step (B) is not reduced to the set condition. The controller 48 executes the program corresponding to the input of the concentration detector 43 provided in the solution nozzle 25 or the solution tank 33. [ The concentration detector 43 may comprise a pH meter. The set conditions include factors such as the amount of a specific component in the odor gas, the rate at which the component is reduced, and the like. Therefore, it is possible to increase the flexibility of the process by eliminating manual operation in the process of treating a large amount of malodorous gas.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: Bio-deodorizing means 13: Carrier
15: water nozzle 17: heater
18, 28: Circulating pump 20: Water washing and deodorizing means
22; Porous body 23: Demister
25: solution nozzle 27:
30: cleaning liquid means 31: chemical tank
33: solution tank 35: circulation tube
40: control means 41: deodorizing fan
42: Gas analyzer 43: Concentration detector
44: gas detector 46: flow path switching valve
48:

Claims (7)

An apparatus for deodorizing odorous gas by a combined treatment method, comprising:
A bio-deodorizing means (10) for guiding the malodorous gas from the inlet (11) to the carrier (13) and the water nozzle (15);
A water washing and deodorizing means (20) connected to the downstream end of the bio-deodorizing means (10) and having a solution nozzle (25) on the deodorization path;
A cleaning liquid means (30) connected to the solution nozzle (25) of the water cleaning / deodorizing means (20) to add a cleaning liquid; And
And control means (40) for controlling the bio-deodorizing means (10), the water washing and deodorizing means (20) and the washing liquid means (30) with an algorithm set in correspondence with the state change of the malodor gas,
The bio-deodorizing means (10) is connected to the water washing and deodorizing means (20) in a parallel circuit,
The bio-deodorizing means 10 includes a heater 17 for adjusting the internal temperature of the bio-deodorizing means 10. The heater 17 is provided with a heat source by an external heat collecting plate 27,
The water washing and deodorizing means 20 has a porous body 22 and a water nozzle 15 on the upper side of the solution nozzle 25,
Wherein the cleaning liquid means (30) dilutes the washing stock solution stored in the chemical tank (31) with water and stores it in the solution tank (33) in a solution state of a predetermined concentration. delete delete delete The method according to claim 1,
The control means 40 includes a gas analyzer 42 provided on the inlet 11, a concentration detector 43 provided on the solution tank 33, and a controller 48 for storing and executing the set algorithm Wherein the deodorizing device is a deodorizing device of a combined treatment type. A method for deodorizing malodorous gas based on the deodorizing apparatus of claim 1, comprising:
(A) operating the water nozzle (15) when the odor gas inflow concentration of the inlet (11) exceeds a set value; And
(B) performing the reprocessing through the circulation pipe (35) when the odor gas discharge amount of the discharge port (21) exceeds the set value. The method of claim 6,
Wherein the concentration of the cleaning liquid injected into the solution nozzle (25) is changed when the amount of the odorous gas discharged in the step (B) is not reduced to the set condition.

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