A device and method for evaluating the effect of a multi-biological deodorization process

Abstract

The present invention provides a device and method for evaluating the effectiveness of a multi-biological deodorization process. The device provided by the present invention can directly collect odors before and after the test, and can also read odor concentration data by installing a gas sensing device, thereby directly evaluating the treatment capacity of the biological filter box, which is close to the actual working conditions, and can also directly adjust the treatment process parameters.

Description

Technical Field

[0001] The present invention relates to the technical field of biological deodorization evaluation, and in particular to a device and method for evaluating the effects of a multi-biological deodorization process. Background Art

[0002] Among various odor treatment processes, biological deodorization is widely used due to its stable effectiveness and low operating costs. In practice, it has been found that combining biological deodorization with plant-based deodorization significantly improves odor treatment effectiveness. However, there is currently no simple and easy method for evaluating the effectiveness of this treatment process. Testing and evaluation can only be performed after construction is complete, and the equipment's process parameters may not be optimal, or even cannot be modified after completion.

[0003] In 2017, the Urban Construction Industry Standard of the People's Republic of China issued the "CJ / T 516-2017 Technical Requirements for Domestic Waste Deodorants", which proposed evaluation methods and technical requirements for the deodorization effects of biological deodorants and plant-based deodorants. The evaluation method is to allow the odor to pass through a solution in which the biological deodorant or plant-based deodorant is pre-dissolved and placed in a large bubble absorption tube, analyze the gas concentration before and after treatment, and calculate the removal rate.

[0004] The aforementioned standard proposes a test method that requires a 24-hour reaction time for bio-based deodorants, whereas in actual applications, the reaction time is approximately 5 to 10 seconds. Furthermore, in this evaluation method, all odors to be treated pass through a solution containing either the bio-based or botanical deodorant, ensuring full contact and reaction between the odor and the deodorant. However, in actual operation, bio-based deodorants contact the odor through microbial packing, while botanical deodorants contact the odor through spraying into the air. Therefore, ensuring full contact between the odor and the deodorant is difficult.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The first purpose of the present invention is to provide a device for evaluating the effect of a multi-biological deodorization process, which can directly obtain the gas before and after treatment, and measure the content of odorous organic matter therein, directly evaluate the deodorization effect, and timely adjust the deodorization process parameters.

[0007] The second object of the present invention is to provide a method for evaluating the effect of a multi-biological deodorization process, which has the advantages of convenience and simplicity and is suitable for evaluating the treatment effect of different odor sources.

[0008] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are adopted:

[0009] A device for evaluating the effect of a multi-organism deodorization process, comprising an odor source unit, a multi-organism filter unit, a microbial nutrient solution storage device, and a plant solution storage device;

[0010] The multi-biofilter unit comprises a filter tank box, wherein the interior of the filter tank box comprises a screen, and the screen divides the interior of the filter tank box into an upper closed area and a lower closed area;

[0011] Preferably, the screen is arranged horizontally;

[0012] The upper enclosed area includes three vertically arranged upper partitions, which divide the upper enclosed area into four enclosed processing areas, namely the first processing area, the second processing area, the third processing area and the fourth processing area;

[0013] Fillers are provided in the first treatment area, the second treatment area and the third treatment area;

[0014] The lower enclosed area is provided with a vertical lower partition, and the lower partition divides the lower enclosed area into a fifth processing area and a sixth processing area;

[0015] The first treatment area, the second treatment area and the third treatment area are respectively connected to the odor source unit through pipelines;

[0016] The first processing area, the second processing area and the third processing area are respectively connected to the microbial nutrient solution storage device through pipelines;

[0017] An exhaust hole and an exhaust pipeline are provided on the top of the fourth processing area. Preferably, a second gas detector is provided on the exhaust pipeline;

[0018] The fourth processing area is connected to the plant liquid storage device.

[0019] Preferably, the odor source unit includes an odor source box, and a fan is provided on the top of the odor source box;

[0020] Preferably, the odor source unit is provided with an air inlet hole and an air inlet pipeline, and the air inlet pipeline is provided with an air inlet valve.

[0021] Preferably, the upper partition is arranged vertically, and the four closed processing areas divide the upper closed area equally;

[0022] and / or;

[0023] The fifth processing area is communicated with the sixth processing area.

[0024] Preferably, a centrifugal fan is provided between the first treatment area, the second treatment area, the third treatment area and the odor source unit;

[0025] Preferably, a first valve is provided between the centrifugal fan and the odor source unit;

[0026] Preferably, a second valve is provided between the centrifugal fan and the second processing area;

[0027] Preferably, a third valve is provided between the centrifugal fan and the third processing area.

[0028] Preferably, the connection points of the first treatment area, the second treatment area and the third treatment area with the odor source unit are respectively arranged on the top of the filter tank box;

[0029] Preferably, a first gas detector is provided on the pipeline between the first treatment area, the second treatment area and the third treatment area and the odor source unit respectively.

[0030] Preferably, a first liquid inlet pump is provided between each of the first processing zone, the second processing zone and the third processing zone and the microbial nutrient solution storage device.

[0031] Preferably, a second liquid inlet pump is provided between the fourth processing area and the plant liquid storage device.

[0032] Preferably, a microbial nutrient solution recovery hole and a plant solution recovery hole are respectively provided at the bottom of the fifth treatment zone and the sixth treatment zone.

[0033] Preferably, the microbial nutrient solution recovery hole is connected to the microbial nutrient solution storage device via a pipeline;

[0034] and / or;

[0035] The plant liquid recovery hole is connected to the plant liquid storage device through a pipeline.

[0036] A method for evaluating the effect of a multi-organism deodorization process, using the device for evaluating the effect of a multi-organism deodorization process, comprises the following steps:

[0037] The gas to be treated from the odor source unit is passed into the multi-organism filter unit, the gas to be treated is treated with microorganisms and plant liquid, and then the gas concentration before and after treatment is tested respectively, and the effect of the multi-organism deodorization process is evaluated by the change in gas concentration;

[0038] Preferably, the gas to be treated includes at least one of hydrogen sulfide, ammonia and methyl mercaptan.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] (1) The device provided by the present invention can directly collect odor before and after the test, and can also read the odor concentration data by installing a gas sensing device, so as to directly evaluate the treatment capacity of the biofilter box, which is close to the actual working conditions, and can also directly adjust the treatment process parameters.

[0041] (2) The filter tank of the device provided by the present invention has four built-in zones. By switching the valves, a single zone can be controlled to work, or multiple zones can be controlled to work simultaneously. The data obtained from the test can guide the design of multi-biological deodorization process engineering.

[0042] (3) The device provided by the present invention can be used to prepare different types of odor sources in the air source filter tank body to verify the treatment ability of the multi-biological deodorization process for different odor types.

[0043] (4) In the device provided by the present invention, the centrifugal fan can be driven by a variable frequency motor, the flow rate of the intake air can be adjusted and controlled, and the processing capacity of multiple biological filter boxes under different gas flow rates can be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 A three-dimensional diagram of a device for evaluating the effectiveness of a multi-organism deodorization process provided by an embodiment of the present invention;

[0046] Figure 2 A three-dimensional cross-sectional view of a device for evaluating the effectiveness of a multi-organism deodorization process according to an embodiment of the present invention;

[0047] Figure 3 A schematic diagram of the structure of a multi-organism filter unit of an apparatus for evaluating the effect of a multi-organism deodorization process provided by an embodiment of the present invention;

[0048] Figure 4 A three-dimensional cross-sectional view of an apparatus for evaluating the effectiveness of a multi-biological deodorization process according to another embodiment of the present invention.

[0049] Reference numerals:

[0050] 1- Odor source unit; 2- Multi-biological filter unit; 3- Microbial nutrient solution storage device;

[0051] 4-Plant fluid storage device;

[0052] 11- Odor source box; 12- Fan; 13- Air intake pipe;

[0053] 14-intake valve; 21-filter tank; 22-screen;

[0054] 23-first partition; 24-lower partition wall; 25-filler;

[0055] 2101-first processing area; 2102-second processing area; 2103-third processing area;

[0056] 2104-Fourth processing area; 2105-Fifth processing area; 2106-Sixth processing area;

[0057] 21041- Exhaust hole; 21042- Exhaust pipe;

[0058] 26-biological nutrient solution recovery hole; 27-plant solution recovery hole; 28-first valve;

[0059] 29-second valve; 291-third valve;

[0060] 5- centrifugal fan; 6- first gas detector; 7- second gas detector;

[0061] 8-first liquid inlet pump; 9-second liquid inlet pump. DETAILED DESCRIPTION

[0062] The technical scheme of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but it will be understood by those skilled in the art that the following described embodiments are part of embodiments of the present invention, rather than all embodiments, and are only used to illustrate the present invention, and should not be considered as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. Those who do not specify specific conditions in the embodiments are carried out according to normal conditions or the conditions recommended by the manufacturer. Those whose reagents or instruments are not specified by the manufacturer are conventional products that can be purchased commercially.

[0063] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0065] The present invention provides a device for evaluating the effect of a multi-biological deodorization process, such as Figure 1 and Figure 2 As shown, it includes an odor source unit 1, a multi-biological filter unit 2, a microbial nutrient solution storage device 3 and a plant solution storage device 4;

[0066] The multi-biological filter unit 2 includes a filter box 21. The schematic diagram of the interior of the filter box 21 is shown in FIG. Figure 3 , including a screen 22, the screen 22 divides the interior of the filter tank box 21 into an upper closed area and a lower closed area;

[0067] The upper enclosed area includes three vertically arranged upper partitions 23, which divide the upper enclosed area into four enclosed processing areas, namely the first processing area 2101, the second processing area 2102, the third processing area 2103 and the fourth processing area 2104;

[0068] Fillers 25 are provided in the first processing area 2101, the second processing area 2102 and the third processing area 2103;

[0069] The lower enclosed area is provided with a vertical lower partition 24, and the lower partition 24 divides the lower enclosed area into a fifth processing area 2105 and a sixth processing area 2106;

[0070] Among them, the pipeline connection methods of each processing area are as follows: Figure 4 As shown; the first treatment area 2101, the second treatment area 2102 and the third treatment area 2103 are respectively connected to the odor source unit 1 through pipelines;

[0071] The first treatment area 2101, the second treatment area 2102 and the third treatment area 2103 are respectively connected to the microbial nutrient solution storage device 3 through pipelines, and nozzles are preferably provided at the connection points to ensure that the liquid is fully in contact with the odor source gas;

[0072] The top of the fourth processing area 2104 is provided with an exhaust hole 21041 and an exhaust pipe 21042;

[0073] Odors from the odor source housing 11 can be divided into three parallel paths and enter the three zones inside the filter housing 21, namely the first treatment zone 2101, the second treatment zone 2102 and the third treatment zone 2103, and then pass through the fifth treatment zone 2105 and the sixth treatment zone 2106, and finally be discharged through the exhaust hole 21041 of the fourth treatment zone 2104;

[0074] The fourth treatment area 2104 is connected to the plant liquid storage device 4, and a nozzle is preferably provided at the connection point to ensure sufficient contact between the liquid and the odor source gas.

[0075] In some preferred embodiments of the present invention, the screen 22 is arranged horizontally, and the microbial nutrient solution is sprayed on the filler 25 to provide nutrition for the microorganisms in the filler 25;

[0076] In some preferred embodiments of the present invention, the odor source unit 1 includes an odor source box 11, and a fan 12 is provided on the top of the odor source box 11 to evenly disperse the odor source gas;

[0077] In some preferred embodiments of the present invention, the odor source unit 1 is provided with an air inlet hole and an air inlet pipe 13 , and the air inlet pipe 13 is provided with an air inlet valve 14 .

[0078] In some preferred embodiments of the present invention, the upper partition 23 is vertically arranged, and the four closed processing areas equally divide the upper closed area;

[0079] and / or;

[0080] The fifth processing area 2105 is connected to the sixth processing area 2106 .

[0081] In some preferred embodiments of the present invention, a centrifugal fan 5 is provided between the first treatment area 2101, the second treatment area 2102, the third treatment area 2103 and the odor source unit 1 to increase the air intake. The centrifugal fan 5 can be driven by a variable frequency motor, and the air intake flow rate can be adjusted and controlled, so that the treatment capacity of multiple biological filter boxes under different gas flow rates can be tested;

[0082] In some preferred embodiments of the present invention, a first valve 28 is provided between the centrifugal fan 5 and the odor source unit 1;

[0083] In some preferred embodiments of the present invention, a second valve 29 is provided between the centrifugal fan 5 and the second processing area 2102;

[0084] In some preferred embodiments of the present invention, a third valve 291 is provided between the centrifugal fan 5 and the third processing area 2103 .

[0085] When the odor source is being prepared in the air source box, the inlet valve 14 and the first valve 28 are closed. When the entire experimental device is in operation, the second valve 29 and the third valve 291 are opened. When the second valve 29 is closed, only the first treatment zone 2101 of the filter box is operational. When the third valve 291 is closed, the third treatment zone 2103 of the filter box is inoperative. This allows the filter box's processing capacity to be tested.

[0086] In some preferred embodiments of the present invention, the connection points of the first treatment area 2101, the second treatment area 2102 and the third treatment area 2103 with the odor source unit 1 are respectively arranged on the top of the filter tank box 21;

[0087] In some preferred embodiments of the present invention, the test gas concentration can be tested by extracting gas or directly measured, and a first gas detector 6 is provided on the pipeline between the first treatment area 2101, the second treatment area 2102 and the third treatment area 2103 and the odor source unit 1 respectively.

[0088] In some preferred embodiments of the present invention, the test gas concentration can be tested by extracting gas or directly measured. A second gas detector 7 is provided on the exhaust pipe 21042;

[0089] In some preferred embodiments of the present invention, a first liquid inlet pump 8 is provided between the first treatment zone 2101 , the second treatment zone 2102 , and the third treatment zone 2103 and the microbial nutrient solution storage device 3 , respectively, to adjust the inlet amount of the microbial liquid.

[0090] In some preferred embodiments of the present invention, a second liquid inlet pump 9 is provided between the fourth processing area 2104 and the plant liquid storage device 4 to adjust the amount of plant liquid inlet.

[0091] In some preferred embodiments of the present invention, a microbial nutrient solution recovery hole 26 and a plant solution recovery hole 27 are respectively provided at the bottom of the fifth treatment zone 2105 and the sixth treatment zone 2106 .

[0092] In some preferred embodiments of the present invention, the microbial nutrient solution recovery hole 26 is connected to the microbial nutrient solution storage device 3 via a pipeline, and a valve may be provided on the pipeline to adjust the recovery speed;

[0093] and / or;

[0094] The plant liquid recovery hole 27 is connected to the plant liquid storage device 4 via a pipeline, and a valve can be provided on the pipeline to adjust the recovery speed.

[0095] A method for evaluating the effect of a multi-organism deodorization process, using the device for evaluating the effect of a multi-organism deodorization process, specifically comprises the following steps:

[0096] (1) The air inlet valve 14 and the first valve 28 are closed, and a certain concentration of odor source to be tested, such as hydrogen sulfide, ammonia or methyl mercaptan, is prepared inside the air source box. The fan 12 inside the air source box stirs for 5 minutes. After the fan 12 stops stirring, it is left to stand for 20 minutes.

[0097] (2) The microbial nutrient solution system and plant solution system are started up and testing can begin after the system is stable.

[0098] (3) Turn on the centrifugal fan 5, open the air inlet valve 14 and the first valve 28, and let the odor pass through the filter box 21.

[0099] (4) The first gas detector 6 and the second gas detector 7 are in online working mode, with built-in electrochemical detection units, which can instantly read the concentration data before and after odor treatment, and record the data after the readings stabilize.

[0100] (5) Evaluate the deodorization effect of the multi-biological deodorization process under the current process parameters through data.

[0101] (6) Adjust the process parameters of the experimental device, test the deodorization effect of the multi-biological deodorization process, and obtain optimized and reasonable process parameters.

[0102] (7) The exhaust gas is treated to be harmless and the test is completed.

[0103] Although the present invention has been illustrated and described using specific embodiments, it should be appreciated that the above embodiments are merely intended to illustrate the technical solutions of the present invention rather than to limit them. Those skilled in the art should understand that the technical solutions described in the above embodiments may be modified, or some or all of the technical features thereof may be replaced by equivalents, without departing from the spirit and scope of the present invention. However, these modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments of the present invention. Therefore, this means that all such replacements and modifications within the scope of the present invention are included in the appended claims.

Claims

1. A device for evaluating the effect of a multi-biological deodorization process, characterized in that: It includes an odor source unit, a multi-biological filter unit, a microbial nutrient solution storage device and a plant solution storage device; The multi-biofilter unit comprises a filter tank box, wherein the interior of the filter tank box comprises a screen, and the screen divides the interior of the filter tank box into an upper closed area and a lower closed area; The screen is arranged horizontally; The upper enclosed area includes three vertically arranged upper partitions, which divide the upper enclosed area into four enclosed processing areas, namely the first processing area, the second processing area, the third processing area and the fourth processing area; Fillers are provided in the first treatment area, the second treatment area and the third treatment area; The lower enclosed area is provided with a vertical lower partition, and the lower partition divides the lower enclosed area into a fifth processing area and a sixth processing area; The first treatment area, the second treatment area and the third treatment area are respectively connected to the odor source unit through pipelines; The first processing area, the second processing area and the third processing area are respectively connected to the microbial nutrient solution storage device through pipelines; An exhaust hole and an exhaust pipeline are provided on the top of the fourth processing area, and a second gas detector is provided on the exhaust pipeline; The fourth processing area is connected to the plant liquid storage device; The fifth processing area is connected to the sixth processing area; A first gas detector is provided on the pipelines between the first processing area, the second processing area and the third processing area and the odor source unit respectively.

2. The device for evaluating the effect of a multi-biological deodorization process according to claim 1, characterized in that: The odor source unit comprises an odor source box, and a fan is arranged on the top of the odor source box.

3. The device for evaluating the effect of a multi-biological deodorization process according to claim 2, characterized in that: The odor source unit is provided with an air inlet hole and an air inlet pipeline, and the air inlet pipeline is provided with an air inlet valve.

4. The device for evaluating the effect of a multi-organism deodorization process according to claim 1, characterized in that: The upper partition is vertically arranged, and the four closed processing areas divide the upper closed area equally.

5. The device for evaluating the effect of a multi-organism deodorization process according to claim 1, characterized in that: A centrifugal fan is provided between the first treatment area, the second treatment area, the third treatment area and the odor source unit.

6. The device for evaluating the effect of a multi-organism deodorization process according to claim 5, characterized in that: A first valve is provided between the centrifugal fan and the odor source unit.

7. The device for evaluating the effect of a multi-organism deodorization process according to claim 6, characterized in that: A second valve is provided between the centrifugal fan and the second processing area.

8. The device for evaluating the effect of a multi-organism deodorization process according to claim 7, characterized in that: A third valve is provided between the centrifugal fan and the third processing area.

9. The device for evaluating the effect of a multi-organism deodorization process according to claim 1, characterized in that: The connection points between the first treatment area, the second treatment area and the third treatment area and the odor source unit are respectively arranged on the top of the filter tank box.

10. The device for evaluating the effect of a multi-organism deodorization process according to claim 1, characterized in that: A first liquid inlet pump is provided between the first processing area, the second processing area, the third processing area and the microbial nutrient solution storage device respectively.

11. The device for evaluating the effect of a multi-organism deodorization process according to claim 1, characterized in that: A second liquid inlet pump is provided between the fourth processing area and the plant liquid storage device.

12. The device for evaluating the effect of a multi-organism deodorization process according to claim 1, characterized in that: A microbial nutrient solution recovery hole and a plant solution recovery hole are respectively provided at the bottom of the fifth treatment zone and the sixth treatment zone.

13. The device for evaluating the effect of a multi-organism deodorization process according to claim 12, characterized in that: The microbial nutrient solution recovery hole is connected to the microbial nutrient solution storage device through a pipeline; and / or; The plant liquid recovery hole is connected to the plant liquid storage device through a pipeline.

14. A method for evaluating the effect of a multi-biological deodorization process, characterized in that: The device for evaluating the effect of a multi-organism deodorization process according to any one of claims 1 to 13 comprises the following steps: The gas to be treated from the odor source unit is passed into the multi-organism filter unit, the gas to be treated is treated with microorganisms and plant liquid, and then the gas concentration before and after treatment is tested respectively, and the effect of the multi-organism deodorization process is evaluated by the change in gas concentration; The gas to be treated includes at least one of hydrogen sulfide, ammonia and methyl mercaptan.

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