JPS5895589A - Treatment for organic sewage of high concentration - Google Patents
Treatment for organic sewage of high concentrationInfo
- Publication number
- JPS5895589A JPS5895589A JP56191740A JP19174081A JPS5895589A JP S5895589 A JPS5895589 A JP S5895589A JP 56191740 A JP56191740 A JP 56191740A JP 19174081 A JP19174081 A JP 19174081A JP S5895589 A JPS5895589 A JP S5895589A
- Authority
- JP
- Japan
- Prior art keywords
- sewage
- heat
- stage
- treated
- treated water
- 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
- 239000010865 sewage Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000010790 dilution Methods 0.000 claims abstract description 11
- 239000012895 dilution Substances 0.000 claims abstract description 11
- 230000000813 microbial effect Effects 0.000 claims abstract description 11
- 238000000855 fermentation Methods 0.000 claims abstract description 9
- 230000004151 fermentation Effects 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims abstract description 7
- 239000002351 wastewater Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 abstract description 10
- 238000001704 evaporation Methods 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 4
- 244000005700 microbiome Species 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000005273 aeration Methods 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002503 metabolic effect Effects 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 238000007865 diluting Methods 0.000 abstract 2
- 239000002689 soil Substances 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 description 5
- 239000010800 human waste Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000010796 biological waste Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 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)
Abstract
Description
【発明の詳細な説明】
本発明は、し尿など高一度有機性汚水（本発明において
は、ＢＯＤ１００Ｏ■／！以上の有機性汚水と定義する
）の処理プロセスに関し、微生物の発酵熱（酸化熱）を
有効に利用することが可能な省エネルギープロセスを提
供することを目的とする０
従来し尿、畜産排泄物などの高濃度有機性汚水。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a process for treating high-grade organic sewage such as human waste (defined in the present invention as organic sewage with a BOD of 100 O■/! or more), which uses fermentation heat (oxidation heat) of microorganisms. Our goal is to provide an energy-saving process that can effectively utilize highly concentrated organic sewage such as human waste and livestock excrement.
２−
は種々のプロセスで処理されているが、代表的なプロセ
スは活性汚泥法を主体とする生物処理である。2- is treated by various processes, but the representative process is biological treatment, mainly based on the activated sludge method.
しかしながら、従来の生物処理は巣に水質の浄化のみを
目的としており、良好な処理水質が得られればそれで処
理の目的が達成されたと考えられていた。しかし、本発
明者は生物処理の過程で微生物が原汚水中のＢＯＤの酸
化除去、アンモニアの硝化に伴って多量の発酵熱（酸化
熱）を発生することに着目し、水質浄化の目的と同時に
微生物発酵熱を利用して省エネルギー化が達成できる本
発明方法を完成するに至った。However, conventional biological treatment only aims to purify the water quality in the nest, and it was thought that the purpose of treatment was achieved if good treated water quality was obtained. However, the present inventor focused on the fact that during the biological treatment process, microorganisms generate a large amount of fermentation heat (heat of oxidation) as they oxidize and remove BOD in raw wastewater and nitrify ammonia. The present inventors have completed a method of the present invention that can achieve energy savings by utilizing the heat of microbial fermentation.
すなわち本発明は、高濃度有機性汚水を希釈倍率ｌＯ倍
以下好ましくは無希釈で少なくとも微生物酸化処理する
生物処理工程にて処理し、該生物処理過程で発生する微
生物発酵熱によって加温された生物処理水をヒートポン
プの低熱源となし。That is, the present invention treats high-concentration organic wastewater in a biological treatment process in which highly concentrated organic wastewater is subjected to at least microbial oxidation treatment at a dilution rate of 10 times or less, preferably without dilution, and in which the biological waste is heated by the heat of microbial fermentation generated in the biological treatment process. Treated water can be used as a low-temperature heat source for heat pumps.
該ヒートポンプ冷媒凝縮部より放熱される熱量な熱消費
工程に利用することＹ：特徴とする高濃度有機性汚水の
処理方法である。Utilizing the heat radiated from the heat pump refrigerant condensing section in a heat consuming step.Y: A method for treating high concentration organic wastewater characterized by:
−６一
本発明において原汚水の希釈倍率は極めて重要な因子で
あり、希釈水量が多くなるほど必然的に生物処理水Δ温
が低下するため好ましくない。-6- In the present invention, the dilution ratio of raw sewage is an extremely important factor, and as the amount of dilution water increases, the Δ temperature of the biologically treated water inevitably decreases, which is not preferable.
すなわち、無希釈で生物処理する場合が、生物処理水の
水温が最も高（なるので理想的条件となる。In other words, when biological treatment is performed without dilution, the temperature of the biologically treated water is the highest, which is the ideal condition.
本発明者の検討によれば、１０倍を超える希釈倍率にな
ると生物処理水の水温上昇が著しく少なくなるので、不
発明の目的を効果的に達成できな（なり好ましくないこ
とが判明している。According to the inventor's study, if the dilution ratio exceeds 10 times, the rise in temperature of the biologically treated water will be significantly reduced, making it impossible to effectively achieve the purpose of the invention (which is known to be undesirable). .
また、ＢＯＤ １０００〜／！ 未満の原汚水によった
場合、本発明の効果は全くないわけではないが少ない。Also, BOD 1000~/! If the raw sewage is less than 100 ml, the effect of the present invention is not completely absent, but it is small.
何故なら、微生物発酵熱量が少ないため生物処理水のみ
るべき水温上昇が認められないためである。This is because the amount of heat generated by microbial fermentation is small, so the temperature of biologically treated water does not rise as much as it should.
次に本発明の一実施例乞図面を参照しながら説明する。Next, one embodiment of the present invention will be described with reference to the drawings.
し尿など高楔度有機性汚水１が希釈されることなく生物
学的硝化脱窒素性、活性汚泥法などの微生物酸化処理工
程ｔもつ生物処理工程２に流入し、° 酸素供給がな
され、ＢＯＤ除去、硝化脱窒が行な ４−
われる。この際に微生物の代謝活動による酸化熱（発酵
熱）とエアレーション空気顕熱によって生物処理工程２
の槽内水温が上昇する。本発明者は、微生物酸化熱がし
尿１１Ｔ？あたり３００００〜５００００ｋｃａｌと多
量であるため、生物処理槽内水温はに季には４０〜４５
℃、冬季には３５〜３８℃、春秋季には３８〜４１℃程
度となり、汚水１の水温（１０〜２５６Ｃ程度）に比べ
て著しく高錨になることをし尿処理１ｋ１０ＴＩ？／日
のプラントにより確認１−だ。High wedge organic wastewater 1 such as human waste flows without being diluted into the biological treatment process 2, which has a microbial oxidation treatment process such as biological nitrification and denitrification and activated sludge method, where oxygen is supplied and BOD is removed. , nitrification and denitrification are carried out. At this time, biological treatment process 2 is generated by oxidation heat (fermentation heat) due to the metabolic activity of microorganisms and sensible heat of the aeration air.
The water temperature in the tank increases. The present inventor has discovered that microbial oxidation fever is human waste 11T? Because of the large amount of 30,000 to 50,000 kcal per person, the water temperature in the biological treatment tank drops to 40 to 45 kcal during the season.
℃, 35-38℃ in winter and 38-41℃ in spring and autumn, which is significantly higher than the water temperature of wastewater 1 (about 10-256C). Confirmed by the /day plant 1-.
しかして、生物処理工程２の流出スラリー３は遠心分離
機、沈殿池なとの固液分離工程４にて生物処理水５と濃
縮汚泥６に分離される。生物処理水６の水温は生物処理
工程２つ槽内水温とほぼ同一であり、この保有熱を利用
するため、ヒートポンプの冷媒蒸発熱交換部すなわち蒸
発部７に生物処理水５を流入させ、生物処理水５の保有
Ｍ’に奪う。この結果、生物処理水５の水温は低下し、
減温゛生物処理水５′となる一方、蒸発部７にて生物処
理水５７！ｌ・ら熱ケ奪った冷媒ガスは、圧縮器８に文
５−
圧縮されたのち凝縮器９にて凝縮し、液状となる。The effluent slurry 3 from the biological treatment process 2 is separated into biologically treated water 5 and thickened sludge 6 in a solid-liquid separation process 4 including a centrifuge and a settling tank. The water temperature of the biologically treated water 6 is almost the same as the water temperature in the two biological treatment process tanks, and in order to utilize this retained heat, the biologically treated water 5 is flowed into the refrigerant evaporation heat exchange section of the heat pump, that is, the evaporation section 7, and the biologically treated water 5 is The treated water 5 is taken away from the holding M'. As a result, the temperature of the biologically treated water 5 decreases,
At the same time, it becomes biologically treated water 5' at a reduced temperature, and biologically treated water 57 in the evaporator 7! The refrigerant gas that has removed heat is compressed by the compressor 8 and then condensed in the condenser 9 to become liquid.
このとき、生物処理水６から奪った熱量と圧縮器８に与
えられた圧縮仕事相当熱量の合計が凝縮器９から放熱さ
れる。この放熱によって、例えば空気（又は水）１（１
−加温し、温風（又は温水）１１となし、汚泥乾燥工程
、暖房−などの熱エネルギー消費工程１２に供給利用す
るのである。At this time, the sum of the amount of heat taken from the biologically treated water 6 and the amount of heat equivalent to compression work given to the compressor 8 is radiated from the condenser 9. By this heat radiation, for example, air (or water) 1 (1
- It is heated and turned into hot air (or hot water) 11 and used for supply to thermal energy consuming processes 12 such as sludge drying process and heating.
なお、１３は凝縮液貯槽、１４は冷媒膨張減圧弁テする
。ヒートポンプサイクルの成績係数は、蒸発部７の流入
水６の水温が高いほど大きくなるので、不発明において
は原汚水１の希釈倍率ケなるべく少なくし、理想的には
無希釈で処理することが重要である。Note that 13 is a condensate storage tank, and 14 is a refrigerant expansion and pressure reduction valve. The coefficient of performance of a heat pump cycle increases as the water temperature of the inflow water 6 of the evaporator 7 increases, so it is important to minimize the dilution ratio of the raw sewage 1 and ideally treat it without dilution. It is.
以上の実施例においてはヒートポンプサイクルの蒸発部
７の流入熱源として生物処理水５を例示したが、生物処
理水６Ｙ凝集処理、活性炭などで高度処理した高度処理
水を使用してもよいことは言うまでもなく、なお生物処
理槽を好適状態（３５〜４０℃）に保つために蒸発Ｍ７
’Ｙ経た減温生物処理水５′の一部ケ冷却液として利用
できるのは当 ６−
然である。In the above embodiments, the biologically treated water 5 is used as an example of the inflow heat source of the evaporation section 7 of the heat pump cycle, but it goes without saying that highly treated biologically treated water 6Y, which has been subjected to flocculation treatment, advanced treatment with activated carbon, etc., may also be used. However, in order to keep the biological treatment tank in a suitable state (35-40℃), evaporation M7
It is natural that a portion of the reduced temperature biologically treated water 5' can be used as a cooling liquid.
以上のように本発明によれば、従来むなしく捨てられて
いた生物処理水のもつ熱エネルギーを、極めて効率よく
水処理工程から発生する余剰汚泥脱水ケーキの乾燥、室
内暖房などに利用できるため、本発明を利用しない従来
法において必要とされる汚泥脱水ケーキの乾燥経費など
が激減（イ。As described above, according to the present invention, the thermal energy of biologically treated water, which was conventionally wasted in vain, can be used extremely efficiently for drying excess sludge dewatering cake generated from the water treatment process, room heating, etc. The cost of drying the sludge dewatering cake, which is required in the conventional method that does not utilize the invention, is drastically reduced (a).
程度）するなど七しい省エネルギー効果が得られる。Seven significant energy-saving effects can be obtained.
【図面の簡単な説明】
図面は本発明の実施例を示す系統説明図である。
ｌ・・・・・汚水、２・・・・・・生物処理工程、６・
・・・・・生物処理水、７・・・・・・蒸発部、９・・
・・・・凝縮器、１０・・・・・・空気、１１・・・・
・・温風、１２・・・・・・熱エネルギー消費工程。BRIEF DESCRIPTION OF THE DRAWINGS The drawings are system explanatory diagrams showing embodiments of the present invention. l...Sewage, 2...Biological treatment process, 6.
... Biologically treated water, 7 ... Evaporation section, 9 ...
... Condenser, 10 ... Air, 11 ...
... Warm air, 12... Heat energy consumption process.
Claims (1)
無希釈で少なくとも微生物酸化処理する生物処理工程に
て処理し、該生物処理過程で発生ｊる微生物発酵熱によ
って加温された生物処理水をヒートポンプの低熱源とな
し、該ヒートポンプ冷媒凝縮部より放熱される熱ｊＩｋ
を熱消費工程に利用することを特徴とする高濃度有機性
汚水の処理方法。1. Biologically treated water that is heated by the heat of microbial fermentation generated during the biological treatment process, in which highly concentrated organic wastewater is treated at a dilution rate of 10 times or less, preferably without dilution, in a biological treatment process in which at least microbial oxidation treatment is performed. is the low heat source of the heat pump, and the heat jIk radiated from the heat pump refrigerant condensing section is
A method for treating highly concentrated organic sewage characterized by using it in a heat consumption process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56191740A JPS5895589A (en) | 1981-12-01 | 1981-12-01 | Treatment for organic sewage of high concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56191740A JPS5895589A (en) | 1981-12-01 | 1981-12-01 | Treatment for organic sewage of high concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5895589A true JPS5895589A (en) | 1983-06-07 |
Family
ID=16279705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56191740A Pending JPS5895589A (en) | 1981-12-01 | 1981-12-01 | Treatment for organic sewage of high concentration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5895589A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6808481B1 (en) | 1996-10-15 | 2004-10-26 | Erth Technologies, Inc. | Concentric tubular centrifuge |
| US6966874B2 (en) | 1997-10-14 | 2005-11-22 | Erth Technologies, Inc. | Concentric tubular centrifuge |
| US7241256B2 (en) | 2003-08-30 | 2007-07-10 | Erth Technologies, Inc. | Centrifuge |
| JP2021013903A (en) * | 2019-07-12 | 2021-02-12 | 水ｉｎｇ株式会社 | Organic wastewater treatment method, and organic wastewater treatment device |
| WO2021067684A1 (en) * | 2019-10-03 | 2021-04-08 | Stephen Palmer | System and method for collecting and utilizing heat from an effluent disposal system |
-
1981
- 1981-12-01 JP JP56191740A patent/JPS5895589A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6808481B1 (en) | 1996-10-15 | 2004-10-26 | Erth Technologies, Inc. | Concentric tubular centrifuge |
| US6966874B2 (en) | 1997-10-14 | 2005-11-22 | Erth Technologies, Inc. | Concentric tubular centrifuge |
| US7189196B2 (en) | 1997-10-14 | 2007-03-13 | Erth Technologies, Inc. | Method of separating materials with a concentric tubular centrifuge |
| US7241256B2 (en) | 2003-08-30 | 2007-07-10 | Erth Technologies, Inc. | Centrifuge |
| JP2021013903A (en) * | 2019-07-12 | 2021-02-12 | 水ｉｎｇ株式会社 | Organic wastewater treatment method, and organic wastewater treatment device |
| WO2021067684A1 (en) * | 2019-10-03 | 2021-04-08 | Stephen Palmer | System and method for collecting and utilizing heat from an effluent disposal system |
| US11396465B2 (en) | 2019-10-03 | 2022-07-26 | Stephen Palmer | System and method for collecting and utilizing heat from an effluent disposal system |
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