JP6278796B2 - Deodorization device - Google Patents

Description

  The present invention provides a gas / liquid in which an odor in the gas to be treated is removed by mixing the gas to be treated with the gas to be treated and the odor trapping liquid by introducing the gas to be treated into the odor trapping liquid. The present invention relates to a so-called scrubber type deodorizing apparatus including a mixing unit.

  In conventional scrubber type deodorizing apparatuses, for example, as shown in Patent Document 1, a liquid supply port for supplying an odor trapping liquid is often provided on a side surface of an introduction portion.

Utility Model Registration No. 3132698 (Figure 1)

In the conventional deodorizing apparatus, since the odor capturing liquid is supplied from the side surface of the introduction part, the odor capturing liquid undulates up and down in the apparatus, and the movement in which the odor capturing liquid and the gas to be processed in the apparatus pulsate. May end up. As a result, the contact efficiency between the odor trapping liquid and the gas to be processed decreases, and the odor removal efficiency in the gas to be processed also decreases. Moreover, since it becomes necessary to install the baffle plate etc. for suppressing the waviness of the liquid surface of an odor capture | acquisition liquid, an apparatus becomes complicated.
Accordingly, an object of the present invention is to provide a scrubber-type deodorizing device that suppresses the pulsation of the odor trapping liquid and the gas to be treated.

The first characteristic configuration according to the deodorizing apparatus of the present invention is that the gas to be treated is obtained by mixing the gas to be treated with the introduction portion for introducing the gas to be treated into the odor trapping liquid and the gas to be treated and the odor trapping liquid. In a deodorizing apparatus comprising a gas-liquid mixing unit from which odors are removed, a liquid supply port for supplying the odor capturing liquid to the introduction unit is provided on a contact surface between the gas to be treated and the odor capturing liquid. It is provided on the bottom wall of the introduction part facing, a partition wall is provided between the introduction part and the gas-liquid mixing part, and the gas to be treated and the odor trapping liquid are below the partition wall. A movable communication port is provided, and the gas to be treated introduced into the odor capturing liquid passes through the communication port and moves to the gas-liquid mixing unit .

[Action and effect]
According to this configuration, since the liquid supply port is provided in the bottom wall of the introduction portion so as to face the contact surface between the gas to be processed and the odor capturing liquid, the pressure of the gas to be processed and the pressure of the odor capturing liquid are The liquid level is maintained by canceling each other, and the odor trapping liquid becomes difficult to wave in the apparatus. As a result, it is possible to prevent the odor trapping liquid and the gas to be processed in the apparatus from pulsating.

  The second characteristic configuration includes a plurality of the introduction units and the gas-liquid mixing unit, and the introduction of the gas to be processed into the odor capturing liquid and the gas-liquid mixing of the gas to be processed and the odor capturing liquid are alternately performed. The liquid supply port is provided only on the bottom wall of the introduction part where the gas to be treated is first introduced into the odor trapping liquid.

[Action and effect]
According to this configuration, since a plurality of introduction parts and gas-liquid mixing parts are provided, the odor in the gas to be treated can be more efficiently removed. In addition, by suppressing the odor capturing liquid and the pulsation of the gas to be treated in the introduction part where the gas to be treated is first introduced, the odor capturing liquid and the liquid to be treated in all the introducing parts and gas-liquid mixing parts arranged downstream thereof Gas pulsation can be suppressed. Therefore, as in this configuration, if the liquid supply port is provided only on the bottom wall of the introduction portion where the gas to be treated is first introduced into the odor trapping liquid, the liquid supply is supplied to the bottom wall of the introduction portion disposed downstream. It is not necessary to provide a mouth, and the device configuration is simplified.

The third characteristic configuration, the lower end of the partition wall located on the lower stream side, is set at a higher position than the lower end of the partition wall located upstream, than the communication port of the communication port of the downstream side upstream It is in the point set so that it may become large.

[Action and effect]
According to this configuration, the efficiency of gas-liquid mixing in the gas-liquid mixing unit on the downstream side can be maintained.

  A fourth characteristic configuration is that the gas to be processed further contains dust.

[Action and effect]
According to this structure, it is possible to remove not only odor but also dust from the gas to be treated, and the gas to be treated can be further clarified.

  The fifth characteristic configuration is that the odor trapping liquid is sludge.

[Action and effect]
According to this configuration, since sludge is used as the odor capturing liquid, it is possible to use activated sludge used in, for example, a sewage treatment facility. Therefore, in this case, it is not necessary to separately prepare an odor capturing liquid, and the deodorizing process can be performed efficiently.

It is sectional drawing of a deodorizing apparatus. It is a block diagram which shows the outline of the manure processing equipment provided with a deodorizing apparatus. It is a block diagram which shows the outline of another manure processing equipment provided with a deodorizing apparatus. It is a block diagram which shows the outline of another manure processing equipment provided with a deodorizing apparatus. It is a block diagram which shows the outline of another manure processing equipment provided with a deodorizing apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Deodorization equipment]
As shown in FIG. 1, a deodorizing apparatus 1 according to this embodiment is a so-called scrubber type deodorizing apparatus, and includes an upper wall 2, a left side wall 3, a right side wall 4 forming a stepped portion, a bottom wall 5, a front wall ( (Not shown) and a back wall (not shown).

  The upper wall 2 is provided with a gas supply port 6 for supplying the gas G to be processed and a gas outlet 7 for discharging the gas G to be processed. The bottom wall 5 is provided with a liquid supply port 8 for supplying the odor capture liquid L, a liquid discharge port 9 for discharging the odor capture liquid L, and a liquid discharge mechanism 10 including a drain valve.

  In the deodorizing apparatus 1, there are first to fourth partition walls 11 to 14 along the vertical direction, a fifth partition wall 15 slightly inclined with respect to the horizontal direction, and a weir 16 standing upright from the bottom wall 5. Is provided.

  In addition, the 4th partition wall 14 is provided between the 2nd gas-liquid mixing part 33 and the liquid discharge part 35 which are mentioned later, The upper space of the odor capture liquid L in the liquid discharge part 35, and 2nd gas-liquid mixing The part 33 is shut off. The fifth partition wall 15 is provided above the second partition wall 12 and the third partition wall 13, and forms an inclined surface that inclines downward from the upper part of the first partition wall 11.

  First to fourth communication ports 21 to 24 are formed between the lower ends of the first to fourth partition walls 11 to 14 and the bottom wall 5. A fifth communication port 25 is formed between the upper end of the second partition wall 12 and the fifth partition wall 15. A sixth communication port 26 is formed between the lower end of the fifth partition wall 15 and the right side wall 4.

  In the present embodiment, the lower end of the first partition wall 11 is set at a position lower than the lower end of the third partition wall 13, and the height of the weir 16 is substantially the same as the lower end of the third partition wall 13. It is set to the same height.

  The space in the deodorizing apparatus 1 is partitioned by the first to fifth partition walls 11 to 15 described above, so that the first introduction part 30, the first gas-liquid mixing part 31, the second introduction part 32, and the second gas-liquid are separated. A mixing unit 33, a gas-liquid separation unit 34, and a liquid discharge unit 35 are formed. The liquid discharge portion 35 is formed inside the step portion of the right side wall 4.

  The first odor removing unit is configured by the first introduction unit 30 and the first gas / liquid mixing unit 31, and the second odor removal unit is configured by the second introduction unit 32 and the second gas / liquid mixing unit 33. Defined as

  A gas supply port 6 and a liquid supply port 8 are provided in each of the upper wall 2 portion and the bottom wall 5 portion of the first introduction portion 30 so as to face each other. The liquid discharge mechanism 10 is provided on the bottom wall 5 of the second gas-liquid mixing unit 33. The gas discharge port 7 is provided at a position close to the first partition wall 11 of the upper wall 2 of the gas-liquid separator 34, that is, a position farthest from the sixth communication port 26 in order to increase the moving distance of the gas G to be processed. It has been. The weir 16 is erected on the bottom wall 5 of the liquid discharge portion 35, and the liquid discharge port 9 is provided on the bottom wall 5 between the weir 16 and the right side wall 4.

  The first introduction part 30 and the first gas-liquid mixing part 31 communicate with each other through the first communication port 21. The first gas-liquid mixing unit 31 and the second introduction unit 32 communicate with each other through the second communication port 22 and the fifth communication port 25. The second introduction part 32 and the second gas-liquid mixing part 33 communicate with each other through the third communication port 23. The first communication port 21 is set to be smaller than the third communication port 23. The second gas / liquid mixing unit 33 and the liquid discharge unit 35 communicate with each other through the fourth communication port 24. The second gas / liquid mixing unit 33 and the gas / liquid separation unit 34 communicate with each other through the fifth communication port 25.

  As shown by the dotted arrows in FIG. 1, the gas to be processed G supplied from the gas supply port 6 to the first introduction unit 30 is composed of the first communication port 21, the first gas-liquid mixing unit 31, and the fifth communication port. 25, the second introduction part 32, the third communication port 23, the second gas-liquid mixing unit 33, the sixth communication port 26, and the gas-liquid separation unit 34 are sequentially flowed and discharged from the gas discharge port 7.

  Moreover, as shown by the white arrow in FIG. 1, the odor trapping liquid L supplied from the liquid supply port 8 to the first introduction unit 30 is the first communication port 21, the first gas-liquid mixing unit 31, The two communication ports 22, the second introduction unit 32, the third communication port 23, the second gas-liquid mixing unit 33, the fourth communication port 24, and the liquid discharge unit 35 are sequentially flowed and discharged from the liquid discharge port 9.

  That is, in the deodorizing apparatus 1 of this embodiment, the flow path of the gas to be processed G and the flow path of the odor trapping liquid L partially overlap each other. By supplying, the to-be-processed gas G and the odor capturing liquid L come into contact with each other, whereby the odor or odor and dust in the to-be-processed gas G are captured by the odor capturing liquid L and removed.

  Hereinafter, the operation and effect of each of the first introduction unit 30, the first gas-liquid mixing unit 31, the second introduction unit 32, the second gas-liquid mixing unit 33, the gas-liquid separation unit 34, and the liquid discharge unit 35 will be described in detail. In the following.

  The gas G to be treated is supplied from the gas supply port 6 to the first introduction unit 30 with a predetermined pressure, and the odor capturing liquid L is supplied (press-fit) from the liquid supply port 8 to the first introduction unit 30 with a predetermined pressure. The And the to-be-processed gas G is introduce | transduced in the odor capture | acquisition liquid L by surface contact with the odor capture | acquisition liquid L. FIG.

  At this time, since the liquid supply port 8 is provided on the bottom wall 5 of the first introduction unit 30 so as to face the contact surface S between the gas to be processed G and the odor trapping liquid L, the pressure of the gas to be processed G The pressure of the odor trapping liquid L cancels each other, and the odor trapping liquid L becomes difficult to wave in the apparatus, and the liquid level is maintained. Thereby, the movement which the odor capture | acquisition liquid L in the apparatus and the to-be-processed gas G pulsate can be prevented.

  The to-be-processed gas G introduced into the odor trapping liquid L passes through the first communication port 21 and enters the first gas-liquid mixing section 31, and the upper space of the first gas-liquid mixing section 31 while raising the odor trapping liquid L. Move to. At this time, the odor trapping liquid L is sprinkled together as a large number of fine particles, whereby gas-liquid mixing of the gas to be processed G and the odor trapping liquid L particles is performed. As a result, the gas to be treated G and the odor trapping liquid L come into contact with each other efficiently, so that the odor or odor and dust in the gas to be treated G are captured and removed by the odor trapping liquid L.

  Subsequently, the to-be-processed gas G which moved to the upper space of the 1st gas-liquid mixing part 31 passes the 5th communicating port 25, moves to the 2nd introducing | transducing part 32, and again becomes odor by surface contact with the odor capture liquid L It is introduced into the capture liquid L.

  The to-be-processed gas G introduced into the odor trapping liquid L passes through the third communication port 23 and enters the second gas-liquid mixing section 33, and the upper space of the second gas-liquid mixing section 33 while raising the odor trapping liquid L. Move to. At this time, similarly to the case of the first gas-liquid mixing unit 31, gas-liquid mixing of the gas to be processed G and the particles of the odor capturing liquid L is performed, and the odor in the gas to be processed G is captured by the odor capturing liquid L. Removed.

  Next, the gas to be processed G that has moved to the upper space of the second gas-liquid mixing unit 33 passes through the sixth communication port 26 and moves to the gas-liquid separation unit 34. The gas-liquid separation unit 34 is a part that forms a relatively wide space that communicates above the second gas-liquid mixing unit 33. Since the gas to be treated G contains very fine particles (mist) of the odor trapping liquid L, the flow rate of the gas to be treated G entering the gas-liquid separation unit 34 is reduced and the gas is separated from the odor trapping liquid L. Is prompted. The separated odor capturing liquid L flows along the inclined surface of the fifth partition wall 15 and flows down to the second gas / liquid mixing part 33 and is collected. The gas to be processed G is discharged from the gas discharge port 7 to the outside of the apparatus.

  The odor trapping liquid L supplied from the liquid supply port 8 sequentially passes through the first introduction unit 30, the first gas-liquid mixing unit 31, the second introduction unit 32, and the second gas-liquid mixing unit 33, and the gas to be processed While repeating the introduction of G and gas-liquid mixing, the odor in the gas to be treated G is captured. Then, the odor trapping liquid L that has reached the liquid discharge portion 35 flows down the weir 16 substantially vertically by overflow, is blown by bubbles, is defoamed, and is discharged from the liquid discharge port 9 to the outside of the apparatus.

  In the liquid discharge unit 35, bubbles are generated by releasing the bubbles introduced into the odor trapping liquid L in the first introduction unit, the first gas-liquid mixing unit, the second introduction unit, and the second gas-liquid mixing unit. easy. As a result, the gas to be processed G may be difficult to be discharged due to the bubbles remaining in the vicinity of the gas discharge port 7. However, in the present embodiment, bubbles generated in the liquid discharge part 35 are blocked by the fourth partition wall 14 and cannot move to the second gas-liquid mixing part 33, so that the bubbles accumulate in the vicinity of the gas discharge port 7. There is no. Therefore, the to-be-processed gas G is discharged | emitted from the gas discharge port 7, without being disturbed by a bubble. The bubbles generated in the liquid discharge unit 35 are discharged from the liquid discharge port 9 to the outside of the apparatus together with the odor capturing liquid L flowing down the weir 16 due to overflow. That is, since the generated bubbles are discharged while being drawn into the flow of the odor trapping liquid L, they do not stay in the liquid discharge portion 35. Further, dust is prevented from staying.

[Processed gas]
The to-be-processed gas G applicable to the above-mentioned deodorizing apparatus 1 contains at least odor (for example, compost odor generated when compost is produced, manure odor containing ammonia, hydrogen sulfide, etc.). Further, it may contain dust (for example, compost dust).

[Odor capturing liquid]
Examples of the odor capturing liquid L applicable to the above-described deodorizing apparatus 1 include water, sludge such as activated sludge, and nitrification liquid, but are not limited thereto.

[Purification system]
Next, an embodiment in which the above-described deodorizing apparatus 1 is incorporated in a manure processing facility as an example of a purification system will be described.

  In the sewage treatment facility, a receiving / pretreatment process, a primary purification process, a secondary purification process, a high-order treatment process, a deodorization process, and the like are performed on the sewage / septic tank sludge to be processed.

  In the manure processing facility shown in FIG. 2, a receiving tank 40, a storage tank 41, a preliminary storage tank 42, a pretreatment facility 43, and the like are used in the reception / pretreatment process. In the primary purification treatment step, a deep reaction tank 44, a first membrane raw water tank 45, a second membrane raw water tank 46, a membrane raw water tank 47 (or a precipitation tank), a return sludge tank 48, and the like are used. In the secondary purification treatment step, an agglomeration mixing tank 49, an agglomerated membrane raw water tank 50 (or an agglomeration sedimentation tank), and the like are used. In the high-order treatment process, an advanced treatment facility 51 including a filter, an activated carbon adsorption tower, an ozone contact tank, a disinfection tank, and the like is used. In the deodorization step, the deodorization apparatus 1, the medium concentration deodorization tower 52, the activated carbon adsorption tower 53, and the like are used. In addition, the arrow shown as a continuous line in FIG. 2 has shown the flow of the manure / septic tank sludge, and the arrow shown by a broken line has shown the flow of the air which also contains dust in addition to odor or odor. .

  In the primary purification treatment process in the sewage treatment facility of FIG. 2, activated sludge treatment is performed. Therefore, the sewage treatment equipment includes a return sludge line 54 for returning sludge from the return sludge tank 48 to the deep reaction tank 44 by a return sludge pump, and the deodorizing apparatus 1 is incorporated in the return sludge line 54. ing. In addition, it is not necessary to install a new pump for gas-liquid mixing of the gas to be treated and sludge by using the existing return sludge pump in the urine processing equipment.

  In the deodorizing apparatus 1 in FIG. 2, air containing a high-concentration odor generated in the receiving / pretreatment process is supplied as the gas to be processed G, and the sludge returned by the return sludge line 54 is supplied as the odor trapping liquid L. The

  According to this configuration, the high-concentration odor in the gas to be treated G is captured and removed by the sludge in the deodorization apparatus 1 regardless of the conventional high-concentration deodorization tower. And the to-be-processed gas G from which the high concentration odor and dust were removed is supplied to the medium concentration deodorization tower 52 (second deodorization device), and the medium concentration odor is deodorized. Subsequently, the to-be-processed gas G from which the medium concentration odor has been removed is supplied to the activated carbon adsorption tower 53 (deodorization equipment for deodorizing with activated carbon) to deodorize the low concentration odor, and then released into the atmosphere.

  Since the existing return sludge line 54 returns the sludge to the upstream side of the purification treatment process, the odor component captured by the sludge when the gas and liquid are mixed can be treated with the sludge during the purification treatment process. Further, since the concentration of ammonia contained in the sludge is low, it is easy to capture ammonia which is one of the main components of odor.

  Further, as the manure processing facility shown in FIG. 3, the gas to be processed G supplied to the deodorizing apparatus 1 is generated not only in the air containing high-concentration odor generated in the acceptance / pretreatment process, but also in the primary purification process. You may comprise so that the air containing a medium concentration odor may be supplied together.

  In addition, as shown in FIG. 4, when the manure processing facility includes a composting facility 56 for making compost, the deodorizing apparatus uses the air containing the compost odor and dust generated from the composting facility 56 as the processing gas G. 1 may be provided. In the manure processing facility shown in FIG. 4, the air containing the high concentration odor generated in the receiving / pretreatment step is primarily processed by the high concentration deodorization tower 63. Further, the sludge generated in the primary purification treatment process is dehydrated by a sludge dewatering equipment 55 including a sludge storage tank, a sludge dewatering machine, and the like, and then converted into compost in the composting equipment.

  In the manure processing facility shown in FIG. 5, the receiving tank 40, the storage tank 41, the pre-storage tank 57, the pre-processing equipment 43, the pre-dehydration equipment 58, etc. are used in the receiving / pre-processing step. In the primary purification treatment step, a denitrification tank 59, a nitrification tank 60, a secondary denitrification tank 61, a membrane raw water tank 47 (or a precipitation tank), a return sludge tank 48, and the like are used.

  Activated sludge treatment and denitrification treatment are carried out in the primary purification treatment step in the manure treatment facility of FIG. Therefore, the sewage treatment equipment returns the nitrification liquid from the return sludge tank 48 to the denitrification tank 59 by the return sludge pump and the nitrification liquid from the nitrification tank 60 to the denitrification tank 59 by the nitrification liquid circulation pump. The deodorizing apparatus 1 described above is incorporated in the nitrifying liquid circulation line 62. In addition, it is not necessary to install a new pump for gas-liquid mixing of the gas G to be processed and the nitrification liquid by using the existing nitrification liquid circulation pump in the manure processing facility.

  In the deodorizing apparatus 1 in FIG. 5, air containing compost odor and dust generated from the composting equipment 56 is supplied as the gas to be treated G, and the nitrification liquid returned by the nitrification liquid circulation line 62 is used as the odor trapping liquid L. Supplied. Therefore, in a manure processing facility in which denitrification processing is performed, the nitrification liquid may be supplied to the deodorization apparatus 1 as the odor capturing liquid L. 5, the sludge generated from the pre-dehydration equipment 58 in the receiving / pre-treatment process is converted into compost by the composting equipment 56.

  Since the existing nitrification liquid circulation line 62 returns the nitrification liquid to the upstream side of the purification treatment process, the odor component captured by the nitrification liquid when gas-liquid mixing is performed with the nitrification liquid during the purification treatment process. Can do. Further, since the concentration of ammonia contained in the nitrifying solution is low, it is easy to capture ammonia, which is one of the main components of odor.

  As described above, by incorporating the scrubber-type deodorizing apparatus 1 into the manure treatment facility, the gas to be treated G is introduced into the sludge or nitrification liquid returned from the downstream side of the purification treatment process for purifying the object to be treated, After the sludge or nitrifying liquid and the gas to be treated G are mixed in the gas-liquid state, the sludge or nitrifying liquid is returned to the upstream side of the purification process. As a result, since the gas to be treated G and sludge or nitrification liquid are in efficient contact with each other, the odor (particularly high-concentration odor) and dust contained in the gas to be treated G are efficiently removed. Thus, the gas G to be treated can be clarified.

  Moreover, if the to-be-processed gas G processed by the deodorizing apparatus 1 is supplied and processed to the conventional deodorizing tower (medium concentration deodorizing tower 52, activated carbon adsorption tower 53 etc.) installed in the manure processing facility, The load on the conventional deodorizing tower can be reduced. Accordingly, it is possible to suppress a decrease in the deodorizing performance of the conventional deodorizing tower, and it is possible to reduce the processing cost related to the deodorization (maintenance cost such as reduction of dust removal), and the gas to be processed G can be reduced. It can be further clarified.

  Furthermore, expensive equipment such as a high-concentration deodorization tower and an intermediate-concentration deodorization tower can be replaced with a cheaper scrubber-type deodorization apparatus 1, and the installation cost can be reduced.

  Moreover, since sludge (activated sludge etc.) and nitrification liquid used in a sewage treatment facility or the like are used as the odor trapping liquid, it is not necessary to separately prepare the odor trapping liquid, and the deodorization treatment can be performed efficiently. In the case of sludge, since the odor is decomposed in the process in which the sludge in which the odor is dissolved flows down from the upstream side to the downstream side of the purification treatment process, the sludge in which the odor is decomposed is used as the odor trapping liquid. Odor is more reliably captured in the capture liquid. Further, in the case of a nitrifying solution, the odor is nitrified by the nitrifying solution and easily dissolved in the nitrifying solution, so that the odor is more reliably captured by the nitrifying solution.

  Furthermore, since it is possible to treat the gas to be treated discharged from the composting equipment, that is, the gas to be treated containing a lot of dust in addition to the compost odor, it is easy to install the composting equipment in the manure treatment facility. Thus, simultaneous implementation of the purification process and the composting process can be promoted.

[Other Embodiments]
1. In the above-mentioned embodiment, although the structure which provides two odor removal parts is adopted, it is not limited to this structure, and it may be configured to provide even more odor removal parts as necessary. In some cases, only one configuration may be used.
2. In the above-described embodiment, the configuration in which the gas supply port 6 is provided in the upper wall 2 is adopted. However, the configuration is not limited to this configuration, and the gas supply port 6 may be provided in the left wall 3. good.
3. In the above-described embodiment, the gas to be treated G supplied to the deodorizing apparatus 1 is supplied with air containing high-concentration odor, air containing high-concentration odor and medium-concentration odor, or air containing compost odor. The gas G to be treated is not limited to the configuration, and at least one of the compost odor, the high concentration odor generated from the object to be processed before the purification process, and the medium concentration odor generated from the object to be processed during the purification process. You may comprise so that it may contain.

  The deodorizing apparatus according to the present invention can be applied not only to removing odors and dusts generated from manure processing equipment and composting equipment, but also to treatment of exhaust gas discharged from a factory.

DESCRIPTION OF SYMBOLS 1 Deodorizing apparatus 2 Upper wall 3 Left side wall 4 Right side wall 5 Bottom wall 6 Gas supply port 7 Gas discharge port 8 Liquid supply port 9 Liquid discharge port 10 Liquid discharge mechanism 11-15 First to fifth partition walls 16 Weirs 21 to 26 First to sixth communication ports 30 First introduction part 31 First gas-liquid mixing part 32 Second introduction part 33 Second gas-liquid mixing part 34 Gas-liquid separation part 35 Liquid discharge part 40 Receiving tank 41 Reserving tank 42 Preliminary reserving tank 43 Pretreatment equipment 44 Deep reaction tank 45 First membrane raw water tank 46 Second membrane raw water tank 47 Membrane raw water tank (or sedimentation tank)
48 Return sludge tank 49 Coagulation mixing tank 50 Coagulated membrane raw water tank (or coagulation sedimentation tank)
51 Advanced treatment equipment 52 Medium concentration deodorization tower 53 Activated carbon adsorption tower 54 Return sludge line 55 Sludge dewatering equipment 56 Composting equipment 57 Pre-storage tank 58 Pre-dehydration equipment 59 Denitrification tank 60 Nitrification tank 61 Secondary denitrification tank 62 Nitrification liquid circulation line 63 High concentration deodorization tower G Processed gas L Odor capture liquid S Contact surface

Claims (5)

An introduction part for introducing the gas to be treated into the odor capturing liquid, and a gas / liquid mixing part in which the gas to liquid mixing of the gas to be treated and the odor capturing liquid is performed to remove the odor in the gas to be treated. In the deodorizing device provided,
A liquid supply port for supplying the odor capture liquid to the introduction part is provided on the bottom wall of the introduction part facing the contact surface between the gas to be treated and the odor capture liquid;
A partition wall is provided between the introduction part and the gas-liquid mixing part, and a communication port through which the gas to be treated and the odor capturing liquid can move is provided under the partition wall, and the odor The deodorizing apparatus , wherein the gas to be treated introduced into the capture liquid passes through the communication port and moves to the gas-liquid mixing unit .   A plurality of the introduction part and the gas-liquid mixing part are provided, and the introduction of the gas to be treated into the odor trapping liquid and the gas-liquid mixing of the gas to be treated and the odor trapping liquid are alternately performed. The deodorizing apparatus according to claim 1, wherein the liquid supply port is provided only on a bottom wall of an introduction portion where the gas to be treated is first introduced into the odor trapping liquid. The lower end of the partition wall located on the lower stream side, is set at a position higher than the lower end of the partition wall located on the upstream side, is set as the communication port of the downstream side is larger than the communication port on the upstream side The deodorizing apparatus according to claim 2, wherein   The deodorizing apparatus according to any one of claims 1 to 3, wherein the gas to be treated further contains dust.   The deodorizing apparatus according to any one of claims 1 to 4, wherein the odor capturing liquid is sludge.

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