JPS5888094A - Purification of organic filthy water - Google Patents
Purification of organic filthy waterInfo
- Publication number
- JPS5888094A JPS5888094A JP56183080A JP18308081A JPS5888094A JP S5888094 A JPS5888094 A JP S5888094A JP 56183080 A JP56183080 A JP 56183080A JP 18308081 A JP18308081 A JP 18308081A JP S5888094 A JPS5888094 A JP S5888094A
- Authority
- JP
- Japan
- Prior art keywords
- water
- heat
- temperature
- cell
- coolant
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 26
- 238000000746 purification Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000003507 refrigerant Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 2
- 230000004060 metabolic process Effects 0.000 abstract description 2
- 230000001546 nitrifying effect Effects 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 239000010800 human waste Substances 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 238000005273 aeration Methods 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000003254 anti-foaming effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007102 metabolic function Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004065 wastewater treatment 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、し尿など比較的高ＢＯＤ濃度の有機性汚水の
処理プロセスに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a process for treating organic wastewater such as human waste having a relatively high BOD concentration.
従来、し尿、畜産排泄物などのＢ ＯＤ １００ ｏｍ
ｅｎ以上の高濃度有機性排水の生物処理においては、生
物処理反応槽内の水温がＢＯＤ除去に伴う微生物醗酵熱
およびエアレーション空気の保有熱（ブロワ−における
圧縮作用によって空気温度が通常７００〜１００℃程度
になっている）によって上昇し、４００〜５０℃以上に
なる場合がある。このように水温が過度に上昇すると微
生物の代謝機能を阻害する。Conventionally, BOD 100 om of human waste, livestock excrement, etc.
In biological treatment of high-concentration organic wastewater with a concentration higher than EN, the water temperature in the biological treatment reaction tank is reduced by the microbial fermentation heat associated with BOD removal and the retained heat of the aeration air (the air temperature is usually 700-100℃ due to the compression action in the blower). temperature may rise to 400 to 50°C or higher depending on the temperature. When water temperature rises excessively in this way, it inhibits the metabolic functions of microorganisms.
２−
とくに、生物学的脱窒素プロセスにおいて重要な硝化−
は、水温４σ〜４２℃以上になると活性が著しく劣化す
るため、温度をコントロールする必要がある。従来の温
度コントロールの手段として代表的なものは冷凍機ユニ
ット（チラーユニット）によるものである。2- Nitrification is particularly important in biological denitrification processes-
Since the activity deteriorates significantly when the water temperature exceeds 4σ to 42°C, it is necessary to control the temperature. A typical conventional temperature control means is a refrigerator unit (chiller unit).
この方式の問題点は、冷凍機の運転経費が高いことであ
る。本発明者は従来の方式の問題点が冷ＩｉＡ機の機能
を単に水温を所定温度以下にコントロールすることにし
か利用していることに起因していることに着目し本発明
を完成した。The problem with this method is that the operating costs of the refrigerator are high. The present inventor has completed the present invention by noting that the problem with the conventional system is due to the fact that the function of the cold IiA machine is only used to control the water temperature below a predetermined temperature.
すなわち、本発明は、有機性汚水の処理によって必然的
に発生する汚泥の乾燥用熱源とじ【、有機性汚水の生物
処理過穫で発生する微生物の発酵熱馨たくみに利用する
、省エネルギープロセスを提供することを目的とするも
のであり、有機性汚水を生物処理する際、該生物処理槽
内液を冷凍機にて温度コントロールすると共に前記冷凍
機の冷媒凝縮部の放熱を回収することを特徴とする有機
性汚水処理方法である。That is, the present invention provides an energy-saving process that utilizes a heat source for drying sludge that is inevitably generated during the treatment of organic sewage, and a heat source for fermentation of microorganisms that occurs during the biological treatment of organic sewage. When organic wastewater is subjected to biological treatment, the temperature of the liquid in the biological treatment tank is controlled using a refrigerator, and the heat released from the refrigerant condensing part of the refrigerator is recovered. This is an organic wastewater treatment method.
−５− 以下に本発明の実施例を図面を参照しながら説明する。-5- Embodiments of the present invention will be described below with reference to the drawings.
し尿ｌが希釈水によって希釈されることなく生物学的硝
化脱窒素プロセスなどの生物処理反応槽２に流入し、エ
アレーション用空気（＃１素でもよい）３によって、酸
素供給がなされ微生物によってＢＯＤ除去、硝化脱窒素
される。このとき、微生物の代圃活動による発酵熱（し
尿１ｍ８あたり約３００００〜４００００−の熱量が発
生する）とエアレーション用空気の保有熱によって生物
処理反応槽２内の水温が上昇する。なお、４は発泡を防
止するための消泡機である。Human waste 1 flows into a biological treatment reaction tank 2 for biological nitrification and denitrification process without being diluted with dilution water, and is supplied with oxygen by aeration air (#1 element may be used) 3 and BOD is removed by microorganisms. , nitrification and denitrification. At this time, the water temperature in the biological treatment reaction tank 2 rises due to fermentation heat (about 30,000 to 40,000 - of heat is generated per 1 m8 of human waste) due to the field activities of microorganisms and the heat retained in the aeration air. Note that 4 is a defoaming machine for preventing foaming.
生物処理反応槽２内の活性汚泥スラＩＪ −５が遠心分
離機などの固液分離装置６に流入し、処理水７と濃縮汚
泥Ｓに分離され、濃縮汚泥８０大部分９は生物処理反応
槽２に返送される。Activated sludge sludge IJ-5 in the biological treatment reaction tank 2 flows into a solid-liquid separator 6 such as a centrifuge and is separated into treated water 7 and thickened sludge S, and most of the thickened sludge 80 9 is transferred to the biological treatment reaction tank. 2 will be returned.
しかして、生物処理反応槽２内の水温が過度に上昇し、
硝化菌など微生物の代謝′ＩＦ！：阻害するのを防ぐた
めに、冷却水１０が槽内の熱交換器１１を経由して循環
し、槽内水温を所定＠度にコントロールする。熱交換さ
れ温水となった循環水１σは冷凍機１２の冷媒蒸発器１
３に流入して冷却され冷却水ｌＯとなって流出してゆく
。As a result, the water temperature in the biological treatment reaction tank 2 rises excessively,
Metabolism of microorganisms such as nitrifying bacteria 'IF! : In order to prevent interference, cooling water 10 is circulated through a heat exchanger 11 in the tank to control the water temperature in the tank to a predetermined temperature. The circulating water 1σ that has undergone heat exchange and has become hot water is sent to the refrigerant evaporator 1 of the refrigerator 12.
3, it is cooled and flows out as cooling water lO.
一方、冷媒蒸発器１３にて循環水１σかも熱を奪った冷
媒は、圧縮機１４にて圧縮されたのち凝縮器１５にて凝
縮し、凝縮器１６からは循環水１０′から奪った熱量と
圧縮仕事に相当する熱ｉｔな合計したものが放熱される
。この放熱によって空気１６を加熱し加熱空気１７を乾
燥器１８に供給し、生物処理工程から発生する余剰汚泥
Ｆｌを脱水した脱水ケーキなどを乾燥する。なお、１９
は膨張減圧弁である。また上記乾燥器１８はコンポスト
発酵槽も含む意に用いである。On the other hand, the refrigerant that has taken 1σ of heat from the circulating water in the refrigerant evaporator 13 is compressed in the compressor 14 and then condensed in the condenser 15, and from the condenser 16, the amount of heat taken from the circulating water 10' is The total amount of heat corresponding to the work of compression is radiated. The air 16 is heated by this heat radiation, and the heated air 17 is supplied to the dryer 18 to dry a dehydrated cake obtained by dehydrating excess sludge Fl generated from the biological treatment process. In addition, 19
is an expansion pressure reducing valve. The dryer 18 can also be used as a compost fermenter.
このように本発明は、従来単に生物処理反応槽２内ケ冷
却するという単一の機能にしか利用されていなかった冷
凍機の役割ｔ、冷媒凝縮部にて放熱される熱ｔを汚泥の
乾燥、室内暖房、温水製造、消化槽の加温などに利用す
るという新規な概念によって著しく拡大したところに最
大の特徴をもっている。In this way, the present invention has the role of the refrigerator, which was conventionally used only for the single function of cooling the inside of the biological treatment reaction tank 2. Its greatest feature is that it has expanded significantly due to the novel concept of using it for indoor heating, hot water production, heating of digesters, etc.
５−
しかして、汚泥の乾燥用熱源となる冷媒凝ｍ部の放熱量
をＱユ（ｂ ／ ｈ ）、冷媒蒸発器１３で循環水１σ
から奪った熱量ヲＱ２（Ｉｌ、ｌ／ｈ）、冷凍機の圧縮
機１４の仕事をＱｓ（ｖ／ｈ）とｊると、Ｑｓ ” Ｑ
ｔ ” Ｑｓ
の関係が成立する。5- Therefore, the amount of heat dissipated from the refrigerant condensation section, which is the heat source for drying the sludge, is Qyu (b/h), and the circulating water in the refrigerant evaporator 13 is 1σ.
If the amount of heat taken from Q2 (Il, l/h) and the work of the compressor 14 of the refrigerator are Qs (v/h), then Qs ” Q
The relationship t''Qs holds true.
従って、乾燥用熱量Ｑ１は冷却熱量Ｑ、が多量であるほ
ど多量に得られる。このことは、原水ＢＯＤ＃度が高く
生物処理反応槽内の微生物発酵熱が多量なほど乾燥用熱
量Ｑ、が多量に得られることＹ意味しており、それゆえ
し尿など有機性排水を河川水で多量に希釈することは、
著しく不利であり、理想的には無希釈がよく、発泡防止
のために止むを得ず消泡水を添加する場合は３倍以下の
希釈倍率にとどめることが重要である。Therefore, the larger the amount of cooling heat Q1, the more the amount of drying heat Q1 can be obtained. This means that the higher the raw water BOD# and the more microbial fermentation heat in the biological treatment reaction tank, the more drying heat Q can be obtained. Diluting a large amount with
This is extremely disadvantageous, and ideally no dilution is preferred, but if antifoaming water is unavoidably added to prevent foaming, it is important to limit the dilution ratio to 3 times or less.
なお、本発明においては熱交換器１１が加熱器として働
く場合もあり、この場合には上記実施例とは反対に、生
物処理反応槽２の冷熱を有効利用する手段〉とることが
可能となる。In addition, in the present invention, the heat exchanger 11 may function as a heater, and in this case, contrary to the above embodiment, it is possible to take measures to effectively utilize the cold energy of the biological treatment reaction tank 2. .
以上述べたように本発明によれば、生物処理槽 ６−
内液の温熱又は冷熱を有効利用でき、特に生物処理時の
発酵熱等を汚泥乾燥用等に利用できるので著しい省エネ
ルギー効果が得られる。As described above, according to the present invention, the heat or cold of the liquid inside the biological treatment tank 6 can be effectively used, and in particular, the fermentation heat during biological treatment can be used for drying sludge, etc., resulting in a significant energy saving effect. .
図面は、本発明の実施例を示す系統説明図である。
ｌ・・・・・・し尿、ト・・・・・生物処理反応槽、１
０・・・・・・′冷却水、ｌσ・・・・・・循環水、１
１・・・・・・熱交換器、１２・・・・・・冷凍機、１
３・・・・・・冷媒蒸発器、１ト・・・・・圧縮機、１
ト・・・・・凝縮器、１６・・・・・・空気、１７・・
・・・・加熱空気、１８・・・・・・乾燥器、１９・・
・・・・膨張減圧弁。The drawings are system explanatory diagrams showing embodiments of the present invention. L... Human waste, G... Biological treatment reaction tank, 1
0...'Cooling water, lσ...Circulating water, 1
1... Heat exchanger, 12... Refrigerator, 1
3... Refrigerant evaporator, 1 T... Compressor, 1
G... Condenser, 16... Air, 17...
...Heated air, 18...Dryer, 19...
...Expansion pressure reducing valve.
Claims (1)
冷凍機にて温度コントロールすると共に前記冷凍機の冷
媒凝縮部の放熱を回収することＶ％徴とする有機性汚水
処理方法。1. A method for treating organic sewage in which, when organic sewage is subjected to biological treatment, the temperature of the liquid in the nuclear biological treatment tank is controlled using a refrigerator, and the heat released from the refrigerant condensing section of the refrigerator is recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56183080A JPS5888094A (en) | 1981-11-17 | 1981-11-17 | Purification of organic filthy water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56183080A JPS5888094A (en) | 1981-11-17 | 1981-11-17 | Purification of organic filthy water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5888094A true JPS5888094A (en) | 1983-05-26 |
Family
ID=16129405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56183080A Pending JPS5888094A (en) | 1981-11-17 | 1981-11-17 | Purification of organic filthy water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5888094A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105881A (en) * | 1983-11-04 | 1985-06-11 | 荏原インフイルコ株式会社 | Method of drying solid matter containing water |
| JP2002066588A (en) * | 2000-08-25 | 2002-03-05 | Toshiba Corp | Waste water treatment equipment |
| JP2004290921A (en) * | 2003-03-28 | 2004-10-21 | Fuji Electric Holdings Co Ltd | Methane fermentation method and system |
| JP2007521176A (en) * | 2003-07-03 | 2007-08-02 | ストツケ・エイ・エス | Children's seat and telescopic adjustable foot support |
| JP2012115813A (en) * | 2010-12-03 | 2012-06-21 | Mitsubishi Heavy Ind Ltd | Heat pump system for wastewater treatment facility by biological treatment method, wastewater treatment facility by biological treatment method provided therewith, and method for control of the heat pump system for wastewater treatment facility by biological treatment method |
| CN108862561A (en) * | 2018-07-28 | 2018-11-23 | 奥兰川维技术（武汉）有限公司 | A kind of low temperature aquaculture biochemical treatment apparatus |
| CN109399804A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment composition and its method of application and circulating water cooling treatment |
| CN109399796A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment system and its method with circulating water cooling treatment |
| CN109399795A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment system and its method of application and circulating water cooling treatment |
| CN109399797A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment system and its method of application and circulating water cooling treatment |
| CN109422350A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | The system of circulating water cooling treatment containing ammonia nitrogen and its application |
| CN109422353A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | The composition of circulating water cooling treatment containing ammonia nitrogen and its application |
| CN109422354A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | Circulating cooling water containing sulfur processing system and its application |
| CN109422351A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | Circulating cooling water containing sulfur processing system and its application |
| CN109422356A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | Circulating cooling water containing sulfur composition for treating and its application |
| CN109422345A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | The system of circulating water cooling treatment containing ammonia nitrogen and its application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4888765A (en) * | 1972-02-26 | 1973-11-20 |
-
1981
- 1981-11-17 JP JP56183080A patent/JPS5888094A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4888765A (en) * | 1972-02-26 | 1973-11-20 |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105881A (en) * | 1983-11-04 | 1985-06-11 | 荏原インフイルコ株式会社 | Method of drying solid matter containing water |
| JP2002066588A (en) * | 2000-08-25 | 2002-03-05 | Toshiba Corp | Waste water treatment equipment |
| JP2004290921A (en) * | 2003-03-28 | 2004-10-21 | Fuji Electric Holdings Co Ltd | Methane fermentation method and system |
| JP2007521176A (en) * | 2003-07-03 | 2007-08-02 | ストツケ・エイ・エス | Children's seat and telescopic adjustable foot support |
| JP2012115813A (en) * | 2010-12-03 | 2012-06-21 | Mitsubishi Heavy Ind Ltd | Heat pump system for wastewater treatment facility by biological treatment method, wastewater treatment facility by biological treatment method provided therewith, and method for control of the heat pump system for wastewater treatment facility by biological treatment method |
| CN109399795A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment system and its method of application and circulating water cooling treatment |
| CN109399804A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment composition and its method of application and circulating water cooling treatment |
| CN109399796A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment system and its method with circulating water cooling treatment |
| CN109399797A (en) * | 2017-08-15 | 2019-03-01 | 中国石油化工股份有限公司 | Circulating water cooling treatment system and its method of application and circulating water cooling treatment |
| CN109399795B (en) * | 2017-08-15 | 2020-07-21 | 中国石油化工股份有限公司 | System for treating circulating cooling water, application thereof and method for treating circulating cooling water |
| CN109422350A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | The system of circulating water cooling treatment containing ammonia nitrogen and its application |
| CN109422353A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | The composition of circulating water cooling treatment containing ammonia nitrogen and its application |
| CN109422354A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | Circulating cooling water containing sulfur processing system and its application |
| CN109422351A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | Circulating cooling water containing sulfur processing system and its application |
| CN109422356A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | Circulating cooling water containing sulfur composition for treating and its application |
| CN109422345A (en) * | 2017-08-29 | 2019-03-05 | 中国石油化工股份有限公司 | The system of circulating water cooling treatment containing ammonia nitrogen and its application |
| CN108862561A (en) * | 2018-07-28 | 2018-11-23 | 奥兰川维技术（武汉）有限公司 | A kind of low temperature aquaculture biochemical treatment apparatus |
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