JPH03245817A - Operation of filter bed type biological deodorizing apparatus - Google Patents
Operation of filter bed type biological deodorizing apparatusInfo
- Publication number
- JPH03245817A JPH03245817A JP2044188A JP4418890A JPH03245817A JP H03245817 A JPH03245817 A JP H03245817A JP 2044188 A JP2044188 A JP 2044188A JP 4418890 A JP4418890 A JP 4418890A JP H03245817 A JPH03245817 A JP H03245817A
- Authority
- JP
- Japan
- Prior art keywords
- filter bed
- water
- biological deodorizing
- malodorous components
- bed section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000004332 deodorization Methods 0.000 claims description 14
- 244000005700 microbiome Species 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 241000894006 Bacteria Species 0.000 abstract description 7
- 230000003100 immobilizing effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 description 25
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000003472 neutralizing effect Effects 0.000 description 6
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 nitrate ions Chemical class 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は下水処理場などの脱臭設備として用いられるる
床式生物脱臭装置の運転方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of operating a floor-type biological deodorizing apparatus used as deodorizing equipment in sewage treatment plants and the like.
従来の技術
従来、下水処理場などにおいて発生する臭気を除去する
なめにろ床式生物脱臭塔が用いられており、従来のる床
式生物脱臭塔は第２図に示すようなものであった。すな
わち、生物脱臭塔１の内部にはろ床部２が設けられてお
り、ろ床部２には脱臭に関与する微生物が固定されてい
た。そして、ろ床部２の下方に原臭供給ダクト３より供
給される原臭はろ床部２を通過する間に微生物によって
脱臭され、生物脱臭塔１の上部から処理ガスとして脱臭
ファン５によって取り出される。さらに、微生物によっ
て分解されてろ床部２に蓄積する反応生成物（硫酸イオ
ン、硝酸イオン等）は散水管６から供給される循環水に
よって洗浄され、生物脱臭塔１の下部に形成された循環
水槽８に流下する。そして、この反応生成物を含んだ循
環水は循環水槽８に中和剤管９より供給される中和剤に
よって中和され、散水ポンプ１０によって再度ろ床部２
に散水される。Conventional technology Conventionally, a double-bed type biological deodorizing tower has been used to remove odors generated in sewage treatment plants, etc., and the conventional double-bed type biological deodorizing tower is as shown in Figure 2. . That is, a filter bed section 2 was provided inside the biological deodorization tower 1, and microorganisms involved in deodorization were immobilized on the filter bed section 2. The raw odor supplied from the raw odor supply duct 3 to the lower part of the filter bed section 2 is deodorized by microorganisms while passing through the filter bed section 2, and is taken out from the upper part of the biological deodorization tower 1 as a process gas by the deodorization fan 5. . Furthermore, reaction products (sulfate ions, nitrate ions, etc.) that are decomposed by microorganisms and accumulate in the filter bed section 2 are washed away by circulating water supplied from the sprinkler pipe 6, and a circulating water tank formed at the bottom of the biological deodorizing tower 1 is used. It flows down to 8. The circulating water containing this reaction product is neutralized by the neutralizing agent supplied from the neutralizing agent pipe 9 to the circulating water tank 8, and then transferred to the filter bed section 2 again by the watering pump 10.
is sprinkled with water.
またろ床式生物脱臭装置として出口臭気強度を抑えるな
めに、上記構成の生物脱臭塔１を複数基設置し、全ての
塔に順に処理されたガスを通過させて脱臭を行っている
。またこれら複数の生物脱臭塔１の散水頻度や流量等の
散水条件は同一としていた。In addition, in order to suppress the odor intensity at the outlet of the filter bed type biological deodorizing device, a plurality of biological deodorizing towers 1 having the above configuration are installed, and the treated gas is passed through all the towers in order for deodorization. Furthermore, the watering conditions such as the watering frequency and flow rate of these plurality of biological deodorizing towers 1 were the same.
発明が解決しようとする課題
しかし、生物脱臭塔１を複数基設けたろ床式生物脱臭装
置においても、各項ｌの散水条件が同一なため、例えば
Ｈ２Ｓなどの易溶性物質はガス中から除去されるが、他
方たとえばメチルカプタンなどＢ溶性物質はガス中から
除去されずに処理ガス中に残り、臭気を発生させるとい
う問題があった。Problems to be Solved by the Invention However, even in a filter-bed type biological deodorizing device equipped with a plurality of biological deodorizing towers 1, since the watering conditions for each term 1 are the same, easily soluble substances such as H2S are not removed from the gas. However, on the other hand, there is a problem in that B-soluble substances such as methylcaptan remain in the process gas without being removed from the gas and generate odor.
本発明は上記問題を解決するものであり、全ての臭気成
分を除去できるろ床式生物脱臭装置の運転方法を提供す
ることを目的とするものである。The present invention solves the above problems, and aims to provide a method for operating a filter bed type biological deodorization device that can remove all odor components.
課題を解決するための手段
上記問題を解決するため本発明のる床式生物脱臭装置の
運転方法は、複数設けられた各生物脱臭塔の散水ポンプ
の運転条件を、それぞれ原典の臭気成分あるいはこの臭
気成分の溶解度に応じて設定し、各散水ポンプをそれぞ
れの運転条件で運転するものである。Means for Solving the Problems In order to solve the above problems, the operating method of the floor-type biological deodorization apparatus of the present invention is to adjust the operating conditions of the water pumps of each of the plurality of biological deodorization towers to the original odor components or this odor component. Settings are made according to the solubility of odor components, and each sprinkler pump is operated under its own operating conditions.
作用
いま、各生物脱臭塔の散水ポンプの運転条件、すなわち
散水頻度、散水流量などがそれぞれ異なるよう各散水ポ
ンプを運転すると、各生物脱臭塔のる床部の微生物活性
環境が異なることから、これら各ろ床部に優先的に付着
・固定される微生物の面相が異なるようになり、よって
各ろ床部で除去される臭気成分が異なってくる。Function: If the water pumps of each biological deodorizing tower are operated under different operating conditions, such as watering frequency and watering flow rate, the microbial activity environment on the floor of each biological deodorizing tower will be different. The facial features of the microorganisms preferentially attached to and fixed on each filter bed section are different, and therefore the odor components removed at each filter bed section are different.
このことから、上記本発明のる床式生物脱臭装置の運転
方法により、原典の臭気成分あるいはこの臭気成分の溶
解度に応じて各散水ポンプの運転条件を設定して運転し
、各ろ床部に優先的に付着・固定される微生物の面相を
変えることによって、各ろ床部で除去される臭気成分を
変えることができ、全ての原典の臭気成分を除去するこ
とができる。Therefore, according to the method of operating the bed-type biological deodorizing apparatus according to the present invention, the operating conditions of each watering pump are set and operated according to the odor component of the original source or the solubility of this odor component, and each water pump is By changing the aspect of the microorganisms that are preferentially attached and fixed, the odor components removed in each filter bed section can be changed, and all the odor components of the original source can be removed.
実施例 以下本発明の一実施例を図面に基づいて説明する。Example An embodiment of the present invention will be described below based on the drawings.
第１図は本発明の運転方法を使用するろ床式生物脱臭装
置の一例を示す構成図である。FIG. 1 is a block diagram showing an example of a filter bed type biological deodorizing apparatus using the operating method of the present invention.
生物脱臭塔１１は塔頂部が共通の第１塔１２と第２塔１
３に分離されており、各項１２．１３の内部にはそれぞ
れろ床部１４．１５が設けられている。これらろ床部１
４．１５は粒径２０〜３０ｎｍの多孔質の複数のセラミ
ック担体で形成され、脱臭に関与する微生物が固定され
ている。微生物としては硫黄酸化菌や硝化菌等がある。The biological deodorizing tower 11 has a first tower 12 and a second tower 1 that have a common tower top.
3, and a filter bed section 14.15 is provided inside each section 12.13. These filter floor parts 1
4.15 is formed of a plurality of porous ceramic carriers with a particle size of 20 to 30 nm, and microorganisms involved in deodorization are immobilized thereon. Microorganisms include sulfur oxidizing bacteria and nitrifying bacteria.
また、各項１２．７３の底部にはそれぞれ循環水槽１６
、１７が形成されており、各循環水槽１６．１７にはそ
れぞれ補給水を供給するための補給水管１８．１９と、
微生物混合液、たとえば活性汚泥を供給するための活性
汚泥管２０．２１と、中和剤（背性ソーダ）を供給する
ための中和剤管２２．２３が連通されているや
さらに、各ろ床部１４．１５の上方にそれぞれのろ床部
１４，１５に散水する散水管２４．２５が設けられ、こ
れら散水管２４．２５に、循環水槽１６．１７に連通し
ている散水ポンプ２６．２７により循環水が供給される
。これら散水ポンプ２６．２７は、各運転条件、すなわ
ち散水頻度、散水流量などの条件を独立して設定可能と
している。In addition, each section 12.73 has a circulating water tank 16 at the bottom.
, 17 are formed, and each circulating water tank 16.17 has a make-up water pipe 18.19 for supplying make-up water, respectively.
Activated sludge pipes 20.21 for supplying a microbial mixture, such as activated sludge, and neutralizing agent pipes 22.23 for supplying a neutralizing agent (back soda) are in communication with each other. Sprinkle pipes 24.25 for sprinkling water on the respective filter beds 14, 15 are provided above the floor portions 14.15, and these water sprinkling pipes 24.25 are connected to a water pump 26.25 communicating with a circulating water tank 16.17. Circulating water is supplied by 27. These watering pumps 26 and 27 are capable of independently setting various operating conditions, such as watering frequency and watering flow rate.
また、第１塔１２のろ床部１４の下方には原典を供給す
る原臭供給ダクト２８が設けられ、第２塔１３のろ床部
１５の下方には処理ガスを活性炭吸着塔（図示せず）に
送風する脱臭ファン２９が設けられている。Further, an original odor supply duct 28 is provided below the filter bed section 14 of the first column 12 to supply the original, and below the filter bed section 15 of the second column 13, the processed gas is supplied to an activated carbon adsorption tower (not shown). A deodorizing fan 29 that blows air is provided.
いま第１塔１２で易溶性で分解されやすい臭気成分、た
とえばＨ２Ｓを除去し、第２塔１３で難溶性で難分解性
の臭気成分、たとえばＣＨ３ＳＨを除去することとする
と、第１塔１２の散水ポンプ２６は非連続散水と設定さ
れ、第２塔１３の散水ポンプ２７は連続散水と設定され
、運転が行われる。Now, suppose that the first column 12 removes easily soluble and easily decomposed odor components, such as H2S, and the second column 13 removes poorly soluble and difficult to decompose odor components, such as CH3SH. The water sprinkling pump 26 is set to discontinuous water sprinkling, and the water sprinkling pump 27 of the second tower 13 is set to continuous water sprinkling, and the operation is performed.
以下、上記構成および運転における作用について説明す
る。Hereinafter, the above-mentioned structure and operation effects will be explained.
魚臭供給ダクト２８から第１塔１２に流入した原臭は、
脱臭ファン２９に吸引されて第１塔１２のろ床部１４を
通過し、こめろ床部１４の微生物による脱臭作用を受け
、生物脱臭塔１１の塔頂部を通り、さらに第２塔１３の
ろ床部１５を通過し、このろ床部１５の微生物による脱
臭作用を受け、脱臭された処理ガスは脱臭ファン２９を
介して活性炭吸着塔（図示せず）に送風される。いま第
１塔１２のろ床部１４は非連続散水されることで、担体
に保持される水分に対してＣＨ３ＳＨは殆んど溶解せず
したがって相対的にＨ２Ｓｊ、か溶解しないことがらＨ
２Ｓ分解菌が優先種となり、またろ床部１４を通過した
水を循環水槽１６、散水ポンプ２６および散水管２４を
介して再びろ床部１４に循環することで、散水によって
循環水槽に落下したＨ２ Ｓ分解菌は再びろ床部に付着
するので、第１塔１２のろ床部１４においてはＨ２Ｓが
効率的かつ安定的に除去される。また第２塔１３のろ床
部１５では連続散水されることでＣＨ３ＳＨ分解菌が同
様に優先種となり、ＣＨ３ＳＨが効率的かつ安定的に除
去される。また、循環水槽１６゜１７に流入した、微生
物分解を受けた反応生成物が含まれた循環水はそれぞれ
中和剤管２２．２３から供給される中和剤（ＮａＯＨ）
によって中和される。The raw odor flowing into the first tower 12 from the fish odor supply duct 28 is
It is sucked by the deodorizing fan 29 and passes through the filter bed section 14 of the first column 12, receives the deodorizing action of the microorganisms in the filter bed section 14, passes through the top of the biological deodorization tower 11, and then passes through the filter bed section of the second column 13. After passing through the filter bed section 15 and subjected to the deodorizing action by microorganisms in the filter bed section 15, the deodorized process gas is blown through a deodorizing fan 29 to an activated carbon adsorption tower (not shown). Now, the filter bed section 14 of the first column 12 is discontinuously sprinkled with water, so that CH3SH hardly dissolves in the water held in the carrier, so that relatively H2Sj or H
The 2S decomposing bacteria became the priority species, and the water that had passed through the filter bed section 14 was circulated back to the filter bed section 14 via the circulation tank 16, the sprinkler pump 26, and the sprinkler pipe 24, so that the water fell into the circulation tank due to water sprinkling. Since the H2S decomposing bacteria re-adheres to the filter bed section, H2S is efficiently and stably removed in the filter bed section 14 of the first column 12. Further, in the filter bed section 15 of the second column 13, CH3SH decomposing bacteria similarly becomes a priority species due to continuous water sprinkling, and CH3SH is efficiently and stably removed. In addition, the circulating water containing the reaction products subjected to microbial decomposition that has flowed into the circulating water tanks 16 and 17 is treated with a neutralizing agent (NaOH) supplied from the neutralizing agent pipes 22 and 23, respectively.
neutralized by
このように、易溶性で分解されやすい臭気成分、たとえ
ばＨ２Ｓを第１塔１２で、難溶性で難分解性の臭気成分
、たとえばＣＨ３ＳＨを第２塔１３でそれぞれ効率的か
つ安定的に除去することができ、出口臭気強度を抑える
優れた脱臭性能を発揮することができる。In this way, easily soluble and easily decomposed odor components, such as H2S, can be efficiently and stably removed in the first column 12, and poorly soluble and easily decomposed odor components, such as CH3SH, can be efficiently and stably removed in the second column 13. It can exhibit excellent deodorizing performance that suppresses the intensity of odor at the outlet.
なお、本実施例では生物脱臭塔１１を２つの塔に分離し
ているが、さらに複数の塔に分離し、散水ポンプの運転
条件を変えることでさらに優れた脱臭性能を期待できる
。In this example, the biological deodorizing tower 11 is separated into two towers, but even better deodorizing performance can be expected by separating the biological deodorizing tower 11 into a plurality of towers and changing the operating conditions of the sprinkler pump.
発明の効果
以上のように本発明によれば、各生物脱臭塔の散水ポン
プの運転条件を変えることで各ろ床部に馴養される微生
物の種類を変えることができ、原典の各臭気成分をそれ
ぞれ分解するる床部を形成することができる。よって、
原典の全ての臭気成分を分解することができ、出口臭気
強度を抑える優れた脱臭性能を発揮することができる。Effects of the Invention As described above, according to the present invention, by changing the operating conditions of the watering pump of each biological deodorization tower, the types of microorganisms that are acclimatized to each filter bed can be changed, and each odor component in the original source can be changed. Each disassembly floor can be formed. Therefore,
It can decompose all the odor components in the original source, and exhibits excellent deodorizing performance that suppresses the intensity of odor at the outlet.
第１図は本発明のる床式生物脱臭装置の運転方法を使用
するろ床式生物脱臭装置の構成図、第２図は従来のる床
式生物脱臭装置の構成図である。
１１・・・生物脱臭塔、１２・・・第１塔、１３・・・
第２塔、１４゜１５・・・ろ床部、１６．１７・・・循
環水槽、１８．１９・・・補給水管、２０．２１・・・
活性汚泥管、２２．２３・・・中和剤管、２４゜２５・
・、散水管、２６．２７・・・散水ポンプ、２８・・・
原典供給ダクト、２９・−・脱臭ファン。FIG. 1 is a block diagram of a filter bed type biological deodorizing apparatus using the method of operating a bed type biological deodorizing apparatus according to the present invention, and FIG. 2 is a block diagram of a conventional bed type biological deodorizing apparatus. 11... Biological deodorizing tower, 12... First tower, 13...
2nd tower, 14° 15...Filter bed section, 16.17...Circulation water tank, 18.19...Supplementary water pipe, 20.21...
Activated sludge pipe, 22.23... Neutralizer pipe, 24°25.
・, Water pipe, 26.27... Water pump, 28...
Original supply duct, 29.--Deodorizing fan.
Claims (1)
このろ床部の上方に位置して設けられろ床部に循環水を
散水する散水管と、前記ろ床部を洗浄した循環水を貯留
する循環水槽と、この循環水槽から前記循環水を前記散
水管へ供給する散水ポンプを備えた生物脱臭塔を複数塔
順に脱臭を行うよう設置したろ床式生物脱臭装置におい
て、前記各生物脱臭塔の散水ポンプの運転条件をそれぞ
れ原臭の臭気成分あるいはこの臭気成分の溶解度に応じ
て設定し、各散水ポンプをそれぞれ設定した運転条件で
運転するろ床式生物脱臭装置の運転方法。1. A filter bed section for fixing microorganisms involved in deodorization;
A water sprinkling pipe provided above the filter bed section for sprinkling circulating water onto the filter bed section; a circulating water tank storing the circulating water that has washed the filter bed section; In a filter-bed type biological deodorization device in which a plurality of biological deodorizing towers each equipped with a watering pump that supplies water to a watering pipe are installed to perform deodorization in sequence, the operating conditions of the watering pump of each biological deodorizing tower are determined based on the odor components of the original odor or A method of operating a filter bed type biological deodorizing device in which settings are set according to the solubility of the odor component, and each sprinkler pump is operated under the set operating conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2044188A JPH03245817A (en) | 1990-02-22 | 1990-02-22 | Operation of filter bed type biological deodorizing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2044188A JPH03245817A (en) | 1990-02-22 | 1990-02-22 | Operation of filter bed type biological deodorizing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03245817A true JPH03245817A (en) | 1991-11-01 |
Family
ID=12684598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2044188A Pending JPH03245817A (en) | 1990-02-22 | 1990-02-22 | Operation of filter bed type biological deodorizing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03245817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055807A (en) * | 2017-01-09 | 2017-08-18 | 浙江永峰环保科技股份有限公司 | A kind of convenient installing type biological deodorizing filter tank of modularization |
-
1990
- 1990-02-22 JP JP2044188A patent/JPH03245817A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055807A (en) * | 2017-01-09 | 2017-08-18 | 浙江永峰环保科技股份有限公司 | A kind of convenient installing type biological deodorizing filter tank of modularization |
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