JPS60106600A - Drying method of water-containing organic material - Google Patents
Drying method of water-containing organic materialInfo
- Publication number
- JPS60106600A JPS60106600A JP58196031A JP19603183A JPS60106600A JP S60106600 A JPS60106600 A JP S60106600A JP 58196031 A JP58196031 A JP 58196031A JP 19603183 A JP19603183 A JP 19603183A JP S60106600 A JPS60106600 A JP S60106600A
- Authority
- JP
- Japan
- Prior art keywords
- aeration
- drying
- water
- blower
- aeration blower
- 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
- 238000001035 drying Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 13
- 239000011368 organic material Substances 0.000 title 1
- 238000005273 aeration Methods 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 abstract description 11
- 239000000428 dust Substances 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract 4
- 235000019645 odor Nutrition 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 239000002351 wastewater Substances 0.000 description 5
- 238000004065 wastewater treatment Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000009264 composting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002699 waste material 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、し尿、下水、各種産業廃水などの有機性汚水
処理において発生ずる篩渣、汚泥等の含水物の省エネル
ギ的な乾燥方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an energy-saving method for drying water-containing materials such as sieve sludge and sludge generated in the treatment of organic wastewater such as human waste, sewage, and various industrial wastewaters.
従来、有機性汚水を活性汚泥法などの生物処理プロセス
によって処理する場合、第１図に示すように、有機性汚
水１を尋く曝気Ｉａ２に空気を供給するため曝気ブロワ
６が設置される。この曝気ブロワ３の機能は□、従来、
巣・に曝気槽２への空気供給という単一機能しか発揮さ
れておらず、このことはごく当り前のこととして何ら疑
問をいだかれずに現在に至つ℃いる。Conventionally, when organic wastewater is treated by a biological treatment process such as an activated sludge method, an aeration blower 6 is installed to supply air to the aeration Ia2 that treats the organic wastewater 1, as shown in FIG. The function of this aeration blower 3 is □, conventionally,
It only performs the single function of supplying air to the aeration tank 2, and this has been taken for granted and has remained unquestioned to this day.
一方、曝気槽２にて生物処理された汚水は、沈緻池４に
て沈殿分離され、上澄水は処理水５としＣ取り出され、
沈殿した汚泥は、一部は返送汚泥６として曝気！ｆ１２
に返送され、余剰汚泥７は脱水機８で脱水されて脱水ケ
ーキ９となる。この脱水ケーキ９の含水率は８０ｊ−Ｊ
後と＾く、このままでは含水率が高いため、焼却、コン
ポスト化、埋立などの処分を行うには非常に不都合であ
るから、各種の乾燥器を用いた乾燥工程１０で乾燥する
必、′Ｒがある。また、有機性汚水の処理系内では篩渣
その他の含水廃棄物も発生し、これらも前記脱水ケーキ
９と同様に乾燥する必賛がある。On the other hand, the wastewater that has been biologically treated in the aeration tank 2 is separated by sedimentation in the sedimentation tank 4, and the supernatant water is taken out as treated water 5.
A portion of the settled sludge is aerated as return sludge 6! f12
The excess sludge 7 is dehydrated in a dehydrator 8 to become a dehydrated cake 9. The moisture content of this dehydrated cake 9 is 80j-J
As it is, the moisture content is high and it is very inconvenient to dispose of it by incineration, composting, landfilling, etc. Therefore, it is necessary to dry it in the drying step 10 using various dryers. There is. In addition, sieve sludge and other water-containing wastes are also generated within the organic wastewater treatment system, and these must also be dried in the same manner as the dehydrated cake 9.
しかしながら、従来の乾燥工程１０で乾燥物１１を得る
ためには、多麓の燃料１２を消費し、エネルギ多消費工
程となっているのが実状である。しかも、この乾燥工程
１０からは強烈な悪臭を伴う乾燥排ガス１６が排出され
、乾燥排ガス１６の脱臭工程１．４に多額の設備費、運
転維持費を要しているのがまぎれもない当業界の現状と
なっている。However, in reality, in order to obtain the dried product 11 in the conventional drying process 10, a lot of fuel 12 is consumed, resulting in an energy-intensive process. Moreover, dry exhaust gas 16 with a strong odor is discharged from this drying process 10, and it is undeniable in this industry that the deodorizing process 1.4 of dry exhaust gas 16 requires a large amount of equipment costs and operation and maintenance costs. This is the current situation.
本発明は、このように従来曝気槽への望気供給用として
しか利用されていなかった曝気プロワのエネルギに着目
して完成されたものである。すなわち、曝気プロワは空
気圧縮機であるから、熱力学における気体の断熱圧縮理
劇に示されるように。The present invention was completed by focusing on the energy of the aeration blower, which has conventionally been used only for supplying desired air to the aeration tank. In other words, since the aeration blower is an air compressor, as shown in the theory of adiabatic compression of gases in thermodynamics.
曝気プロワ吐出空気の温度は吸込み壁紙の温度よりもか
なり上昇し、大気温度が１０〜２０℃の場曾、曝気ブロ
ワ吐出空気の温度は８０〜１００ｔｌ：にも達すること
に着目して本発明が完成されたものである。The present invention has been developed by focusing on the fact that the temperature of the air discharged from the aeration blower rises considerably higher than the temperature of the suction wallpaper, and when the atmospheric temperature is 10 to 20°C, the temperature of the air discharged from the aeration blower reaches 80 to 100 tl. It is complete.
本発明は、曝気プロワ吐出空気の保有熱を巧みに回収、
有効利用し、含水物を燃料を全く必要とせずに乾燥する
ことができる省エネルギ的な乾燥方法を提供することを
目的とするものである。The present invention skillfully recovers the retained heat of the air discharged from the aeration blower.
It is an object of the present invention to provide an energy-saving drying method that can effectively utilize and dry water-containing materials without requiring any fuel.
本発明は、有機性汚水処理において１発生する含水物を
乾燥するに際し、該有機性汚水処理における生物処理工
程の曝気用に使用する曝気プロワの吐出空気によって熱
媒流体を加熱し、この加熱された熱媒流体を前記含水物
の乾燥用熱源として利用し、発生じた乾燥排ガスを前記
曝気プロワに吸入せしめることを特徴とするものである
。The present invention heats a heat medium fluid by the discharge air of an aeration blower used for aeration in the biological treatment process in the organic wastewater treatment when drying the water-containing substances generated in the organic wastewater treatment. The method is characterized in that the heated heat transfer fluid is used as a heat source for drying the water-containing material, and the generated dry exhaust gas is sucked into the aeration blower.
次に１本発明の一実施例を第２図を参照しながら説明す
れば、有機性汚水１の生物処理用の曝気槽２には、曝気
プロワ６の吐出空２気１５を供給するが、この吐出空気
１５は上述したように約８０〜１００℃の鍋温度になっ
ている。したがって、曝気プロワ３の吐出空気１５は曝
気槽２へ供給されるＭＩＪに熱交換器１６（ヒートパイ
プが好適である）へ専かれ、空気、水などの任意の熱媒
流体１７を加熱し、降温した吐出空気１５′が曝気槽２
に供給される。Next, one embodiment of the present invention will be described with reference to FIG. 2. Air 2 discharged from an aeration blower 6 is supplied to an aeration tank 2 for biological treatment of organic wastewater 1. As mentioned above, this discharged air 15 has a pot temperature of about 80 to 100°C. Therefore, the discharge air 15 of the aeration blower 3 is directed to the MIJ supplied to the aeration tank 2 and to the heat exchanger 16 (preferably a heat pipe) to heat any heat medium fluid 17 such as air, water, etc. The cooled discharge air 15' is sent to the aeration tank 2.
supplied to
しかして、熱交換器１６によって６０〜７０℃程度に加
熱された熱媒流体１７′は乾燥工程１０に供給され、篩
渣、汚泥の脱水ケーキなどの含水物１８の乾燥用熱源と
して利用され、乾燥物１１を得る。Thus, the heat medium fluid 17' heated to about 60 to 70°C by the heat exchanger 16 is supplied to the drying step 10, and is used as a heat source for drying water-containing substances 18 such as sieve residue and dehydrated cake of sludge. Dry product 11 is obtained.
さらに、乾燥工程１０内での含水物１８の乾燥によって
発生する乾燥排ガス１６には強烈な悪臭成分が含まれて
いるから、そのまま外部へ放散することなく、ダストが
多いときは集じん器１９を経由させ、曝気フロワ設買室
２０内に専き、曝気プロワ６に吸入させるようにする。Furthermore, since the dry exhaust gas 16 generated by drying the water-containing material 18 in the drying process 10 contains strong malodorous components, the dust collector 19 is not dissipated directly to the outside when there is a lot of dust. The air is supplied exclusively to the aeration floor equipment room 20 and is inhaled by the aeration blower 6.
このようにすることによって、悪臭を有する乾燥排ガス
１６は曝気プロワ６によって曝気槽２に供給されること
になり、悪臭成分は曝気槽２内の微生物によって生物学
的に脱臭される。By doing so, the dry exhaust gas 16 having a bad odor is supplied to the aeration tank 2 by the aeration blower 6, and the malodorous components are biologically deodorized by the microorganisms in the aeration tank 2.
以上述べたように、本発明によれば次のようなきわめて
有用なる効果を得ることができる。As described above, according to the present invention, the following extremely useful effects can be obtained.
■ 従来、有機性汚水処理におい℃、全く利用されるこ
とのなかった曝気プロワ吐出空気の保有熱を、有機性汚
水処理において発生する各種有機性含水物の乾燥用熱源
として利用するものであるから、従来必要とされていた
乾燥用燃料が不費となり、顕著な省資源、省エネルギ効
果が得られる。■ This is because the retained heat of the air discharged from the aeration blower, which has never been used at all in organic wastewater treatment, is used as a heat source for drying various organic hydrates generated in organic wastewater treatment. This eliminates the need for drying fuel, which was previously required, resulting in significant resource and energy savings.
■ 悪臭を有する乾燥排ガスを曝気プロワに吸入させる
ようにしたことによって、乾燥排ガス中の悪臭成分は曝
気槽内の微生物によって生物学的に脱臭されるから、特
別の脱臭工程を設ける必要なく、その建設費ならびに運
転、維持費が不要になる。■ By inhaling the dry exhaust gas with a bad odor into the aeration blower, the malodorous components in the dry exhaust gas are biologically deodorized by the microorganisms in the aeration tank, so there is no need to set up a special deodorization process. Construction costs, operation and maintenance costs are eliminated.
■ 乾燥排ガスを曝気プロワに吸入させるようにしたか
ら、この乾燥排ガスの熱量によって曝気プロワの吸込み
空気が加温され、その結果として曝気プロワ吐出壁紙の
温度が単に外気を吸入した場合よりも高くなり、乾燥用
熱量をさらに＋６めで乾燥を有利に行うことができる。■ Since the dry exhaust gas is sucked into the aeration blower, the amount of heat from this dry exhaust gas warms the air taken in by the aeration blower, and as a result, the temperature of the wallpaper discharged from the aeration blower becomes higher than if outside air was simply sucked in. , drying can be carried out advantageously by increasing the amount of heat for drying by +6.
第１図は従来例を示す系統説明図で、第２図は本発明の
一実施態様を示す系統説明図である。
１・・・有機性汚水、２・・・曝気槽、３・・・曝気プ
ロワ、４・・・沈殿池、５・・・処理水、６・・・返送
汚泥、７・・・余剰汚泥、８・・・脱水機、１０・・・
乾燥工程、１１・・・乾燥物、１２・・・燃料、１６・
・・乾燥排ガス、１４・・・脱臭工程、１５ 、１５’
・・・吐出空気、１６・・・熱交換器、・１７ 、１７
’・・・熱媒流体、１８・・・含水物、２０・・・曝気
プロワ設置室。
特許出願人 荏原インフィルコ株式会社代理人弁理士
高 木 正 性
向 千 １） 捻
回 丸 山 隆 夫FIG. 1 is a system explanatory diagram showing a conventional example, and FIG. 2 is a system explanatory diagram showing an embodiment of the present invention. 1... Organic sewage, 2... Aeration tank, 3... Aeration blower, 4... Sedimentation tank, 5... Treated water, 6... Return sludge, 7... Excess sludge, 8... dehydrator, 10...
Drying step, 11... Dry product, 12... Fuel, 16.
...Dry exhaust gas, 14...Deodorizing process, 15, 15'
...Discharge air, 16...Heat exchanger, 17, 17
'... Heat medium fluid, 18... Hydrate, 20... Aeration blower installation room. Patent applicant: Patent attorney representing Ebara Infilco Co., Ltd.
Tadashi Takagi Predisposition 1) Twisting Takao Maruyama
Claims (1)
に際し、該有機性汚水処理における生物処理工程の曝気
用に使用する曝気ブロワの吐出空気によって熱媒流体を
加熱し、この加熱された熱媒流体を前記含水物の乾燥用
熱源として利用し１発生した乾燥排ガスを前記曝気ブロ
ワに吸入せしめることを特徴とする有機性含水物の処理
方法。t When drying water-containing substances generated in organic sewage treatment, a heating medium fluid is heated by the discharge air of an aeration blower used for aeration in the biological treatment process in the organic sewage treatment, and this heated heating medium fluid is heated. A method for treating an organic hydrated material, characterized in that: 1) the generated dry exhaust gas is sucked into the aeration blower by using the organic hydrated material as a heat source for drying the hydrated material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58196031A JPS60106600A (en) | 1983-10-21 | 1983-10-21 | Drying method of water-containing organic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58196031A JPS60106600A (en) | 1983-10-21 | 1983-10-21 | Drying method of water-containing organic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60106600A true JPS60106600A (en) | 1985-06-12 |
Family
ID=16351055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58196031A Pending JPS60106600A (en) | 1983-10-21 | 1983-10-21 | Drying method of water-containing organic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60106600A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62106900A (en) * | 1985-11-06 | 1987-05-18 | Ebara Infilco Co Ltd | Method for drying sludge |
| WO2007009870A2 (en) * | 2005-07-22 | 2007-01-25 | Siemens Aktiengesellschaft | Water purification device and method |
| JP2007061677A (en) * | 2005-08-29 | 2007-03-15 | Toshiba Corp | Temperature-responsive hollow fiber membrane, temperature-responsive hollow fiber membrane module, and filtering device using the same |
| JP2007130532A (en) * | 2005-11-08 | 2007-05-31 | Toshiba Corp | Temperature responsive membrane, temperature responsive membrane module, and membrane filtration system using the same |
| JP2011152544A (en) * | 2011-05-02 | 2011-08-11 | Toshiba Corp | Membrane filtration system using temperature-responsive membrane |
| JP2014087720A (en) * | 2012-10-29 | 2014-05-15 | Swing Corp | Recovery device of heat of gas, and water treatment apparatus equipped with recovery device of heat of gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5575989A (en) * | 1978-12-04 | 1980-06-07 | Mitsubishi Heavy Ind Ltd | Sewerage sludge composting apparatus |
| JPS5733714A (en) * | 1980-08-07 | 1982-02-23 | Jgc Corp | Treatment of sludge of waste water treating |
| JPS6075398A (en) * | 1983-10-03 | 1985-04-27 | Ebara Infilco Co Ltd | Drying method of hydrous material |
-
1983
- 1983-10-21 JP JP58196031A patent/JPS60106600A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5575989A (en) * | 1978-12-04 | 1980-06-07 | Mitsubishi Heavy Ind Ltd | Sewerage sludge composting apparatus |
| JPS5733714A (en) * | 1980-08-07 | 1982-02-23 | Jgc Corp | Treatment of sludge of waste water treating |
| JPS6075398A (en) * | 1983-10-03 | 1985-04-27 | Ebara Infilco Co Ltd | Drying method of hydrous material |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62106900A (en) * | 1985-11-06 | 1987-05-18 | Ebara Infilco Co Ltd | Method for drying sludge |
| WO2007009870A2 (en) * | 2005-07-22 | 2007-01-25 | Siemens Aktiengesellschaft | Water purification device and method |
| WO2007009870A3 (en) * | 2005-07-22 | 2007-04-19 | Siemens Ag | Water purification device and method |
| JP2007061677A (en) * | 2005-08-29 | 2007-03-15 | Toshiba Corp | Temperature-responsive hollow fiber membrane, temperature-responsive hollow fiber membrane module, and filtering device using the same |
| JP2007130532A (en) * | 2005-11-08 | 2007-05-31 | Toshiba Corp | Temperature responsive membrane, temperature responsive membrane module, and membrane filtration system using the same |
| JP2011152544A (en) * | 2011-05-02 | 2011-08-11 | Toshiba Corp | Membrane filtration system using temperature-responsive membrane |
| JP2014087720A (en) * | 2012-10-29 | 2014-05-15 | Swing Corp | Recovery device of heat of gas, and water treatment apparatus equipped with recovery device of heat of gas |
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