JPS646836B2 - - Google Patents
Info
- Publication number
- JPS646836B2 JPS646836B2 JP20075983A JP20075983A JPS646836B2 JP S646836 B2 JPS646836 B2 JP S646836B2 JP 20075983 A JP20075983 A JP 20075983A JP 20075983 A JP20075983 A JP 20075983A JP S646836 B2 JPS646836 B2 JP S646836B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- blower
- air
- water
- biological treatment
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 238000005273 aeration Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 230000000717 retained effect Effects 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000010800 human waste Substances 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002912 waste gas 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
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Treatment Of Sludge (AREA)
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
機性汚水の合理的な処理方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for rationally treating organic wastewater such as human waste, sewage, and various industrial wastewaters.
従来、有機性汚水処理における活性汚泥処理そ
の他の好気性生物処理工程において、最も多量の
エネルギを消費するのは、曝気用の空気を供給す
るためのブロワであるが、このブロワの機能は単
に曝気という単一の機能しか発揮されておらず、
このことは当然のことと認識されており、ブロワ
に複合的機能を付与するという技術思想は全くみ
られなかつた。 Conventionally, in activated sludge treatment and other aerobic biological treatment processes in organic wastewater treatment, the largest amount of energy is consumed by the blower for supplying air for aeration, but the function of this blower is simply to provide aeration. Only a single function is demonstrated,
This was recognized as a matter of course, and there was no technical idea to give the blower multiple functions.
また、有機性汚水の好気性生物処理工程におい
ては、BODやNH3−Ｎが微生物によつて酸化除
去される際に生物酸化反応熱が発生するが、これ
また全く顧みられることがなかつた。 Furthermore, in the aerobic biological treatment process of organic wastewater, biological oxidation reaction heat is generated when BOD and NH3 -N are oxidized and removed by microorganisms, but this has also not been given any attention.
本発明は、このように従来全く顧みられずに無
駄に廃棄されていたエネルギに着目して完成され
たものである。 The present invention was completed by focusing on energy that has been completely ignored and wasted in the past.
すなわち、熱力学における気体の断熱圧縮理論
に示されるように、ブロワ吐出空気の温度が吸込
み空気の温度よりも著しく上昇し、80〜100℃に
も達することに着目し、さらにまた、有機性汚水
処理の好気性生物処理工程において発生する無視
し得ない量の生物酸化反応生成熱−ちなみにし尿
の活性汚泥処理においては、し尿１Klあたり
35000〜45000kcalの生物酸化反応生成熱が発生す
る−に着目して完成されたものである。 That is, as shown in the adiabatic compression theory of gases in thermodynamics, we focused on the fact that the temperature of the blower discharge air rises significantly higher than the temperature of the intake air, reaching 80 to 100 degrees Celsius. A non-ignorable amount of biological oxidation reaction generated heat is generated in the aerobic biological treatment process.Incidentally, in the activated sludge treatment of human waste, the amount of heat generated per 1Kl of human waste is
It was completed by focusing on the fact that 35,000 to 45,000 kcal of biooxidation reaction heat is generated.
本発明は、有機性汚水処理における好気性生物
処理工程の曝気用ブロワの吐出空気の保有熱及び
生物酸化反応生成熱を巧みに回収、有効利用し、
各種含水物を補助燃料を全く必要とせずに乾燥で
きる合理的かつ省エネルギ的な処理方法を提供す
ることを目的とするものである。 The present invention skillfully recovers and effectively utilizes the retained heat of the discharge air of the aeration blower in the aerobic biological treatment process in organic wastewater treatment and the heat produced by the biological oxidation reaction.
The object of the present invention is to provide a rational and energy-saving treatment method that can dry various types of water-containing materials without requiring any auxiliary fuel.
本発明は、有機性汚水の好気性生物処理槽内の
水又はその流出水の保有熱をヒートポンプの吸熱
源とし、該ヒートポンプの放熱部からの熱によつ
てブロワの吸引空気を加温するとともに、該ブロ
ワの吐出空気を保有熱を含水物の乾燥用熱源とし
て利用したのち降温した吐出空気を前記好気性生
物処理槽に曝気用空気として供給することを特徴
とするものである。 The present invention uses the retained heat of water in an aerobic biological treatment tank for organic sewage or its effluent as a heat absorption source of a heat pump, and heats the suction air of a blower with the heat from the heat radiating part of the heat pump. The present invention is characterized in that the heat retained in the discharge air of the blower is used as a heat source for drying the water-containing material, and then the cooled discharge air is supplied to the aerobic biological treatment tank as aeration air.
本発明の一実施例を図面を参照しながら説明す
ると、有機性汚水１は、活性汚泥法などの好気性
生物処理槽２においてブロワ３の吐出空気４が散
気部５から供給されて好気条件下で生物処理さ
れ、BOD除去やNH3−Ｎの硝化などが遂行され
る。 An embodiment of the present invention will be described with reference to the drawings. Organic sewage 1 is aerobic by being supplied with air 4 discharged from a blower 3 from an aeration part 5 in an aerobic biological treatment tank 2 using an activated sludge method or the like. Biological treatment is performed under certain conditions to remove BOD and nitrify NH 3 -N.
好気性生物処理槽２においては、微生物が
BODやNH3−Ｎを酸化する際の微生物酸化反応
生成熱によつて、槽内の水温は流入する有機性汚
水１よりも上昇し、当然の結果として、流出水６
の温度も上昇している。例えば、し尿の微生物酸
化反応生成熱は約40000kcal／Klし尿という膨大
な熱量となる。すなわち、し尿を無希釈で好気性
生物処理すると該槽内の水温は40℃以上にも達す
る。 In the aerobic biological treatment tank 2, microorganisms
Due to the heat produced by the microbial oxidation reaction when oxidizing BOD and NH 3 -N, the water temperature in the tank rises higher than that of the inflowing organic wastewater 1, and as a natural result, the effluent water 6
temperature is also rising. For example, the heat generated by the microbial oxidation reaction of human waste is approximately 40,000 kcal/Kl, which is a huge amount of heat. That is, when human waste is subjected to aerobic biological treatment without dilution, the water temperature in the tank reaches 40°C or higher.
しかして、この微生物酸化反応生成熱を回収利
用するために、ヒートポンプ吸熱部７（冷媒蒸発
部）によつて、好気性生物処理槽２内の水又は流
出水６から熱量Q1を奪う。この結果、流出水は
降温した流出水６′となる。一方、前記ヒートポ
ンプ吸熱部７で熱量Q1を奪つた冷媒Ａは、圧縮
機Ｂを経由してヒートポンプ放熱部８（冷媒凝縮
部）にて、前記熱量Q1と圧縮機の動力の熱量換
算値Q2の合計Q1＋Q2を放熱する。図中、Ｃは冷
媒膨張弁を示す。 In order to recover and utilize the heat produced by the microbial oxidation reaction, the heat pump heat absorption section 7 (refrigerant evaporation section) takes away the amount of heat Q 1 from the water in the aerobic biological treatment tank 2 or the outflow water 6. As a result, the outflow water becomes outflow water 6' whose temperature has decreased. On the other hand, the refrigerant A that has absorbed the heat amount Q 1 in the heat pump heat absorption section 7 passes through the compressor B and is transferred to the heat pump heat radiation section 8 (refrigerant condensing section) where the heat amount Q 1 and the heat amount conversion value of the power of the compressor are transferred. Dissipates the sum of Q 2 (Q 1 + Q 2) . In the figure, C indicates a refrigerant expansion valve.
さらに、このヒートポンプ放熱部８から放熱さ
れた熱量Q1＋Q2によつて、前記ブロワ３に吸引
される空気９を加温するが、その加温方法として
はどのような方法でもよく、またブロワ３を室外
に設置してその吸込部に前記の加温された空気を
導くようにすることができるが、ブロワ３をブロ
ワ設置室１０内に設置するようにするとよく、さ
らにブロワ設置室１０内にヒートポンプ放熱部８
からの熱を直接導いて室内空気を加温し、この加
温空気をブロワ３で吸引するようにすればきわめ
て有利となる。 Furthermore, the amount of heat Q 1 +Q 2 radiated from the heat pump heat radiating section 8 heats the air 9 sucked into the blower 3, and any heating method may be used. Although the blower 3 can be installed outdoors to guide the warmed air to its suction part, it is preferable to install the blower 3 inside the blower installation chamber 10. Heat pump heat dissipation part 8
It would be very advantageous if the indoor air was heated by directing the heat from the room and the heated air was sucked in by the blower 3.
このようにして加温された空気は、ブロワ３に
よつて吸引され、前述したようにブロワ３による
圧縮熱によつてさらに昇温し、この昇温した吐出
空気４は乾燥器１１に導かれ、その保有熱を含水
物１２の乾燥用熱源として利用して乾燥物１３を
得る。そして、この乾燥器１１で保有熱量を消費
し、降温した吐出空気４′は前述のように好気性
生物処理槽２内に散気部５から供給され、好気性
生物処理を遂行するための曝気用空気として利用
される。 The air heated in this way is sucked by the blower 3 and further heated by the heat of compression by the blower 3 as described above, and the heated discharge air 4 is led to the dryer 11. , the dried material 13 is obtained by utilizing the retained heat as a heat source for drying the water-containing material 12. The heat quantity retained in this dryer 11 is consumed, and the discharged air 4' whose temperature has decreased is supplied from the aeration section 5 into the aerobic biological treatment tank 2 as described above, and aeration is carried out to perform aerobic biological treatment. Used as air for use.
なお、乾燥されるべき含水物１２としては、余
剰活性汚泥、凝集沈殿汚泥、し渣などの脱水ケー
キその他の各種含水廃棄物を対象とするが、有機
性含水物のように乾燥時に悪臭ガスを発生するよ
うなものであるときは、その乾燥排ガスを前記降
温した吐出空気４′とともに好気性生物処理槽２
に供給するのが有利である。すなわち、乾燥排ガ
ス中の悪臭成分は、好気性生物処理槽２内に多量
に生息する微生物によつて生物学的に脱臭され、
別に脱臭設備を設ける必要がなくなる。 The hydrated materials 12 to be dried include excess activated sludge, flocculated sludge, dehydrated cakes such as scum, and various other hydrated wastes. If the waste gas is generated, the dry exhaust gas is sent to the aerobic biological treatment tank 2 along with the cooled discharge air 4'.
It is advantageous to supply That is, the malodorous components in the dry exhaust gas are biologically deodorized by the microorganisms living in large quantities in the aerobic biological treatment tank 2.
There is no need to provide separate deodorizing equipment.
以上述べたように発明は、従来、無駄に廃棄さ
れていた有機性汚水処理における曝気用のブロワ
吐出空気の保有熱ならびに有機性汚水の好気性生
物処理工程における生物酸化反応生成熱を効率よ
く回収し、これを含水物の乾燥に有効利用して従
来必要とされていた乾燥用燃料を不要にし、しか
も本来の有機性汚水処理の効率を低下せしめるこ
とがないという、きわめて合理的かつ省エネルギ
的な効果を有するものである。 As described above, the invention efficiently recovers the heat retained in the air discharged from the aeration blower used in organic wastewater treatment, which was previously wasted, as well as the heat produced by biological oxidation reactions in the aerobic biological treatment process for organic wastewater. This is an extremely rational and energy-saving method that can be used effectively to dry water-containing materials, eliminating the need for drying fuel that was previously required, and without reducing the original efficiency of organic wastewater treatment. It has a great effect.
図面は本発明の一実施例を示す系統説明図であ
る。
１……有機性汚水、２……好気性生物処理槽、
３……ブロワ、４，４′……吐出空気、５……散
気部、６，６′……流出水、７……ヒートポンプ
吸熱部、８……ヒートポンプ放熱部、９……空
気、１０……ブロワ設置室、１１……乾燥機、１
２……含水物、１３……乾燥物。
The drawing is a system explanatory diagram showing an embodiment of the present invention. 1...Organic wastewater, 2...Aerobic biological treatment tank,
3... Blower, 4, 4'... Discharge air, 5... Air diffuser, 6, 6'... Outflow water, 7... Heat pump heat absorption part, 8... Heat pump heat radiation part, 9... Air, 10 ...Blower installation room, 11...Dryer, 1
2... Water-containing material, 13... Dry material.
Claims (1)
槽流出水の保有熱をヒートポンプの吸熱源とし、
該ヒートポンプの放熱部からの熱によつてブロワ
の吸引空気を加温するとともに、該ブロワの吐出
空気の保有熱を含水物の乾燥用熱源として利用し
たのち降温した吐出空気を前記好気性生物処理槽
に曝気用空気として供給することを特徴とする有
機性汚水の処理方法。 ２ 前記ブロワの吸引空気を該ブロワ設置室内空
気で行うものである特許請求の範囲第１項記載の
有機性汚水の処理方法。 ３ 前記ブロワ設置室内に前記ヒートポンプの放
熱部からの熱を直接導いて室内空気を加温するも
のである特許請求の範囲第２項記載の有機性汚水
の処理方法。[Claims] 1. Water in an aerobic biological treatment tank for organic sewage or water flowing out of the tank is used as a heat absorption source for a heat pump,
The air sucked into the blower is heated by the heat from the heat radiating part of the heat pump, and the heat retained in the air discharged from the blower is used as a heat source for drying the water-containing material, and then the cooled discharge air is subjected to the aerobic biological treatment. A method for treating organic sewage characterized by supplying air as aeration to a tank. 2. The organic wastewater treatment method according to claim 1, wherein the air sucked by the blower is the air inside the room where the blower is installed. 3. The organic sewage treatment method according to claim 2, wherein the heat from the heat radiating part of the heat pump is directly guided into the room where the blower is installed to heat indoor air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58200759A JPS60106588A (en) | 1983-10-28 | 1983-10-28 | Treatment of organic sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58200759A JPS60106588A (en) | 1983-10-28 | 1983-10-28 | Treatment of organic sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60106588A JPS60106588A (en) | 1985-06-12 |
| JPS646836B2 true JPS646836B2 (en) | 1989-02-06 |
Family
ID=16429699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58200759A Granted JPS60106588A (en) | 1983-10-28 | 1983-10-28 | Treatment of organic sewage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60106588A (en) |
-
1983
- 1983-10-28 JP JP58200759A patent/JPS60106588A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60106588A (en) | 1985-06-12 |
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