JPH10249384A - Treatment of concentrated suspended matter-containing waste water - Google Patents
Treatment of concentrated suspended matter-containing waste waterInfo
- Publication number
- JPH10249384A JPH10249384A JP5607697A JP5607697A JPH10249384A JP H10249384 A JPH10249384 A JP H10249384A JP 5607697 A JP5607697 A JP 5607697A JP 5607697 A JP5607697 A JP 5607697A JP H10249384 A JPH10249384 A JP H10249384A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- suspension
- separated
- wastewater
- primary
- 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
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Classifications
-
- Y02W10/12—
Landscapes
- Treatment Of Sludge (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、有機性の懸濁物を
高濃度に含む廃水の処理方法に関するものである。The present invention relates to a method for treating wastewater containing an organic suspension at a high concentration.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】一般
に、食品加工工場、焼酎、ビール工場等で発生する廃水
中には、アルコール等の溶解性の有機物の他に、植物滓
等の不溶解性の有機物が懸濁物として多量コロイド状に
なって含まれている。2. Description of the Related Art In general, wastewater generated in food processing plants, shochu, beer factories, and the like, as well as insoluble organic matter such as alcohol, and insoluble matter such as plant scum in food processing plants, shochu, and beer factories. A large amount of organic matter as a suspension is contained in a colloidal state.
【０００３】そして、このような有機性の懸濁物を高濃
度に含む廃水を処理する方法としては、下水処理などで
適用される活性汚泥法などの好気性処理ではランニング
コストが高くなる傾向があるためメタン発酵等の嫌気性
処理をされることが多い。[0003] As a method of treating such wastewater containing an organic suspension at a high concentration, aerobic treatment such as an activated sludge method applied to sewage treatment tends to increase running costs. Therefore, anaerobic treatment such as methane fermentation is often performed.
【０００４】この嫌気性処理方法としては、例えば、図
２（Ａ）に示すように、高濃度懸濁物廃水をそのままメ
タン発酵槽で処理する方法、図２（Ｂ）に示すように、
メタン発酵を行う前に高濃度懸濁物廃水を遠心分離機等
で固液分離し、懸濁物を除去してから処理する方法、図
２（Ｃ）に示すように、さらに固液分離の前に高濃度廃
水を可溶化・酸生成槽等で微生物により懸濁物を可溶性
の有機酸にある程度変換して懸濁物の総量を減らしてか
ら処理する方法等がある。As an anaerobic treatment method, for example, as shown in FIG. 2A, a high-concentration suspended wastewater is directly treated in a methane fermentation tank, and as shown in FIG.
A method in which high-concentration suspension wastewater is subjected to solid-liquid separation using a centrifugal separator or the like before performing methane fermentation and the suspended matter is removed and then treated, as shown in FIG. 2 (C). There is a method in which the suspension is converted to a soluble organic acid to some extent by a microorganism in a solubilization / acid generation tank or the like to reduce the total amount of the suspension before treatment.
【０００５】[0005]
【発明が解決しようとする課題】ところで、図２（Ａ）
に示すような高濃度懸濁物廃水をそのままメタン発酵す
る方法では、充分なメタン発酵処理を行うためには長時
間を要することから、メタン発酵槽が大型化するといっ
た欠点がある。その理由は、廃水中に含まれている溶解
性有機物の場合は直ちに嫌気性微生物によってメタン発
酵が行われるのに対し、懸濁物の場合は長時間を要する
可溶化・酸生成工程を経て溶解性の有機酸に変化してか
らメタン発酵されるようになっているためである。FIG. 2 (A)
The method of methane fermentation of high-concentration suspension wastewater as described in (1) above requires a long time to perform sufficient methane fermentation treatment, and thus has a disadvantage that the methane fermentation tank becomes large. The reason is that methane fermentation is immediately carried out by anaerobic microorganisms in the case of soluble organic matter contained in wastewater, whereas in the case of suspended matter, it is dissolved through a long solubilization and acid generation process that takes a long time. This is because methane fermentation is started after the organic acid is changed to organic acid.
【０００６】また、図２（Ｂ）に示すような方法では、
廃水中から予め懸濁物を分離してからメタン発酵するよ
うにしたため、メタン発酵に長時間を要するといった問
題は解消されるが、大量の懸濁物が廃棄物として残って
しまうため、その処分方法に関して新たな問題が生ず
る。In the method shown in FIG. 2B,
Methane fermentation is performed after separating the suspended matter from the wastewater in advance, so the problem that methane fermentation takes a long time is resolved, but since a large amount of suspended matter remains as waste, it must be disposed of. A new problem arises with the method.
【０００７】また、図２（Ｃ）に示す方法では、予め高
濃度廃水を可溶化・酸生成槽等で懸濁物を可溶性の有機
酸にある程度変換するため、その後の固液分離工程で懸
濁物の総量を減らすことは可能となるが、この可溶化・
酸生成工程においてｐＨが下がることによる能力の低下
を抑えるために、大量のアルカリ液の補給が必要とな
り、運転コストが高くなってしまうといった問題があ
る。あるいはメタン発酵処理水で中和しようとすれば、
大量の廃水をそのまま流し込む必要があるため、大型の
固液分離装置が必要である。In the method shown in FIG. 2 (C), since the suspension is converted to a soluble organic acid to some extent in a solubilization / acid generation tank or the like in a high-concentration wastewater, the suspension is subsequently suspended in a solid-liquid separation step. Although it is possible to reduce the total amount of turbid matter, this solubilization
In order to suppress a decrease in capacity due to a decrease in pH in the acid generation step, a large amount of an alkali solution needs to be replenished, resulting in a problem of an increase in operating cost. Or if you try to neutralize with methane fermentation treated water,
Since a large amount of wastewater needs to be poured as it is, a large-sized solid-liquid separation device is required.
【０００８】そこで、本発明はこのような課題を有効に
解決するために案出されたものであり、その目的は、廃
水中に含まれている懸濁物を効果的に減量すると共に嫌
気性処理時間を大幅に短縮できる新規な高濃度懸濁物含
有廃水の処理方法を提供するものである。Therefore, the present invention has been devised in order to effectively solve such a problem, and an object of the present invention is to effectively reduce the amount of suspended matter contained in wastewater and to achieve anaerobic treatment. It is an object of the present invention to provide a novel method for treating wastewater containing high-concentration suspended matter, which can greatly reduce the treatment time.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決するため
に本発明は、有機性の懸濁物を含む廃水を固液分離して
一次分離液と懸濁物に分離した後、この一次分離液を嫌
気性微生物によってメタン発酵処理し、他方の懸濁物を
アルカリで中和しながら希釈液と共に通性嫌気性微生物
によって可溶化・酸生成処理を行って可溶性の有機酸を
含む二次廃水に変換し、さらにこの二次廃水を固液分離
して二次分離液と沈殿物に分離した後、この二次分離液
を上記一次分離液と共に廃水処理するようにしたもので
ある。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a method of solid-liquid separation of wastewater containing an organic suspension to separate it into a primary separation liquid and a suspension, and then to carry out the primary separation. Secondary wastewater containing soluble organic acids by subjecting the liquid to methane fermentation treatment with anaerobic microorganisms and neutralizing the other suspension with alkali while performing solubilization and acid generation treatment with diluent and facultative anaerobic microorganisms The secondary wastewater is further separated into a secondary separated liquid and a precipitate by solid-liquid separation of the secondary wastewater, and then the secondary separated liquid is subjected to wastewater treatment together with the primary separated liquid.
【００１０】すなわち、先ず、有機性の懸濁物を含む廃
水を遠心分離機で強制的に固液分離することによって懸
濁物が沈殿して廃水中から分離されるため、残りの一次
分離液をそのままメタン発酵処理（嫌気性処理）するこ
とが可能となり、廃水の処理時間を大幅に短縮すること
ができる。That is, first, wastewater containing an organic suspension is forcibly solid-liquid separated by a centrifugal separator, whereby the suspension precipitates and is separated from the wastewater. Can be subjected to methane fermentation treatment (anaerobic treatment) as it is, and the treatment time of wastewater can be greatly reduced.
【００１１】次に、ここで分離された懸濁物の一部を通
性嫌気性微生物によって可溶性・酸生成処理して可溶性
の有機酸を含む二次廃水に変換することで懸濁物の総量
を減量することができる。そして、さらに、この二次廃
水を二次分離液と沈殿物に固液分離した後、この二次分
離液を上記一次分離液と共にメタン発酵処理することで
メタン発酵処理することができる。一方、この沈殿物は
その量が減量し、安定化もされていることから、廃棄物
としての処分も容易となる。[0011] Next, a part of the suspension separated here is subjected to a soluble / acid generating treatment by a facultative anaerobic microorganism to convert it into secondary wastewater containing a soluble organic acid, thereby obtaining a total amount of the suspension. Can be reduced. Further, after the secondary wastewater is solid-liquid separated into a secondary separation liquid and a precipitate, the secondary separation liquid is subjected to methane fermentation treatment together with the primary separation liquid, whereby methane fermentation treatment can be performed. On the other hand, the amount of the precipitate is reduced and stabilized, so that disposal as waste becomes easy.
【００１２】また、本発明方法に際して、上記希釈液と
して上記一次分離液をメタン発酵処理した際に生成する
嫌気性処理水の一部を用いることで、通性嫌気性微生物
を供給することができると同時に、別に弱アルカリ性の
希釈液を用意する必要がなくなるため、運転コストの低
減が達成できる。In the method of the present invention, facultative anaerobic microorganisms can be supplied by using a part of the anaerobic treated water generated when the primary separated liquid is subjected to methane fermentation treatment as the diluting liquid. At the same time, there is no need to separately prepare a weakly alkaline diluent, so that operation costs can be reduced.
【００１３】また、必要に応じて、この二次分離液を活
性汚泥法等によって別経路で廃水処理するようにしても
良い。[0013] If necessary, the secondary separation liquid may be subjected to wastewater treatment by another route by an activated sludge method or the like.
【００１４】[0014]
【発明の実施の形態】次に、本発明を実施する好適一形
態を添付図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.
【００１５】図１は本発明に係る懸濁物含有廃水の処理
装置の実施の一形態を示したものであり、図中１は廃水
を一次分離液（上澄み液）と懸濁物に固液分離するスク
リューデカンタ等の一次遠心分離機、２はこの一次分離
液をメタン生成菌などによって嫌気性処理するためのＵ
ＡＳＢリアクタ（上昇流嫌気性スラッジベッド）等の嫌
気性処理リアクタ、３は一次遠心分離機で分離された懸
濁物中の有機物を通性嫌気性微生物などによって可溶化
・酸生成して可溶性の有機酸を含む二次廃水を生成する
可溶化・酸生成リアクタ、４はこの可溶化・酸生成リア
クタで生成された二次廃水を再度固液分離して二次分離
液と沈殿物に分離する二次遠心分離機である。そして、
二次遠心分離機４で分離された二次分離液が嫌気性処理
リアクタ２側に流されると共に、嫌気性処理リアクタ２
から排出される処理水の一部が一次遠心分離機で分離さ
れた懸濁物中に混入されるようになっている。FIG. 1 shows an embodiment of a treatment apparatus for wastewater containing suspended matter according to the present invention. In the figure, reference numeral 1 denotes solid-liquid separation of wastewater into a primary separation liquid (supernatant) and a suspension. A primary centrifuge, such as a screw decanter, which separates the primary separated liquid, is used for anaerobic treatment of the primary separated liquid with methanogen or the like.
An anaerobic treatment reactor such as an ASB reactor (upflow anaerobic sludge bed) and the like are used. The solubilization / acid generation reactor 4 for producing the secondary wastewater containing the organic acid separates the secondary wastewater generated in the solubilization / acid generation reactor again into solid-liquid separation into a secondary separation liquid and a sediment. Secondary centrifuge. And
The secondary separation liquid separated by the secondary centrifuge 4 flows to the anaerobic treatment reactor 2 side, and the anaerobic treatment reactor 2
Of the treated water discharged from the primary centrifuge is mixed into the suspension separated by the primary centrifuge.
【００１６】以上において、先ず有機性懸濁物を高濃度
（５〜１０％）に含む焼酎蒸留廃液等の廃水は、一次遠
心分離機１によって強制的に固液分離され、アルコール
などの可溶性の有機物が溶け込んでいる一次分離液（上
澄み液）と、濃縮状態の懸濁物（沈殿物）に分離され
る。In the above, first, wastewater such as shochu distillation waste liquid containing an organic suspension at a high concentration (5 to 10%) is forcibly solid-liquid separated by the primary centrifuge 1, and the soluble liquid such as alcohol is removed. It is separated into a primary separation liquid (supernatant) in which organic substances are dissolved, and a concentrated suspension (sediment).
【００１７】次に、ここで分離された一次分離液は、懸
濁物が含まれていないためそのまま嫌気性処理リアクタ
２に流され、ここで数時間〜数十時間滞留することでメ
タン発酵、すなわちリアクタ２内に繁殖したメタン生成
菌（グラニュール）等によって溶解している有機物が分
解され、メタンガス（及び二酸化炭素）と嫌気性処理水
となってリアクタ２外へ排出される。尚、ここで得られ
たメタンガスはそのまま回収されて燃料などとして利用
することができ、嫌気性処理水は有機物が殆ど残存して
いないことから、若干の後処理（好気性処理や中和処理
等）を施した程度でそのまま河川や海洋等の公共用水域
に放流することができる。また、この嫌気性処理水はメ
タン発酵によってｐＨ値がやや高くなっており、弱アル
カリ性を呈している。Next, the primary separated liquid separated here is passed through the anaerobic treatment reactor 2 as it is because it does not contain any suspended matter, and stays there for several hours to several tens of hours to obtain methane fermentation. That is, the dissolved organic matter is decomposed by methane-producing bacteria (granules) or the like propagated in the reactor 2, and is discharged as methane gas (and carbon dioxide) and anaerobic treated water out of the reactor 2. The methane gas obtained here can be recovered as it is and used as fuel, etc. Since the anaerobic treated water has almost no organic matter remaining, some post-treatment (aerobic treatment, neutralization treatment, etc.) ) Can be released to public water bodies such as rivers and oceans. The anaerobic treated water has a slightly higher pH value due to methane fermentation, and exhibits weak alkalinity.
【００１８】一方、この一次遠心分離機１で分離された
懸濁物は可溶化・酸生成リアクタ３に送られ、ここで数
日間程度通性嫌気性微生物等によって処理されることで
懸濁物の一部が可溶性の有機酸になって減量された後、
可溶性の有機酸を含む二次廃水となってでてくる。この
時、有機酸の生成に伴って二次廃水中のｐＨが下がって
反応が鈍化してしまうことから、図示するように、予め
懸濁物中に嫌気性処理リアクタ２で得られた弱アルカリ
性の嫌気性処理水の一部を希釈液として混入してｐＨの
低下を抑制するようにしておく。On the other hand, the suspension separated by the primary centrifuge 1 is sent to the solubilization / acid generation reactor 3 where it is treated with facultative anaerobic microorganisms for about several days. After a part of is reduced to soluble organic acid,
It comes as secondary wastewater containing soluble organic acids. At this time, since the pH of the secondary wastewater decreases with the generation of the organic acid and the reaction slows down, as shown in the drawing, the weak alkaline solution previously obtained in the anaerobic treatment reactor 2 is added to the suspension. A part of the anaerobic treated water is mixed as a diluent to prevent the pH from lowering.
【００１９】そして、この二次廃水は二次遠心分離機４
に送られた後、必要に応じて凝集剤が添加され、再度強
制的に固液分離されて可溶性の有機酸主体の二次分離液
（上澄み液）と略固形状の沈殿物に分離された後、二次
分離液は上記一次分離液と共に上記嫌気性処理リアクタ
に送られ、ここでメタン発酵されて溶解している有機酸
が分解されてメタンガスと嫌気性処理水となってリアク
タ２外へ排出される。一方、残りの沈殿物はその総量が
当初より大幅に減量し安定化していることから、そのま
ま焼却、埋め立てあるいは肥料などとして処分されるこ
とになる。Then, the secondary wastewater is supplied to the secondary centrifuge 4
After being sent to the reactor, a flocculant was added as required, and the mixture was again forcibly solid-liquid separated into a soluble organic acid-based secondary separation liquid (supernatant) and a substantially solid precipitate. Thereafter, the secondary separated liquid is sent to the anaerobic treatment reactor together with the primary separated liquid, where the methane fermentation dissolves the dissolved organic acids to form methane gas and anaerobic treated water to the outside of the reactor 2. Is discharged. On the other hand, since the total amount of the remaining sediment has been greatly reduced and stabilized from the beginning, it will be disposed of as incineration, landfill or fertilizer.
【００２０】このように本発明は、先ず廃水を固液分離
し、残りの懸濁物を可溶化・酸生成処理して可溶性の有
機酸に代えて再度固液分離するようにしたため、嫌気性
微生物による処理時間を無駄にすることなく沈殿物の総
量を効果的に減量することができる。As described above, according to the present invention, the wastewater is first subjected to solid-liquid separation, and the remaining suspension is subjected to solubilization / acid generation treatment to perform solid-liquid separation again in place of the soluble organic acid. The total amount of the precipitate can be effectively reduced without wasting the processing time by the microorganism.
【００２１】尚、本実施の形態では、二次遠心分離機４
側で分離された二次分離液を一次分離液と共にメタン発
酵処理するようにしたが、例えば、凝集剤を嫌気性処理
リアクタ２に入れたくない場合には、図１中点線に示す
ように、この二次分離液をそのまま活性汚泥槽５に流し
て好気性微生物によって活性汚泥処理するようにしてIn the present embodiment, the secondary centrifuge 4
Although the methane fermentation treatment was performed on the secondary separation liquid separated on the side together with the primary separation liquid, for example, when it is not desired to put the flocculant into the anaerobic treatment reactor 2, as shown by a dotted line in FIG. This secondary separation liquid is allowed to flow as it is into the activated sludge tank 5 so that the activated sludge is treated by aerobic microorganisms.
【００２２】も良い。Is also good.
【発明の効果】以上要するに本発明によれば、以下に示
すような優れた効果を発揮することができる。In summary, according to the present invention, the following excellent effects can be exhibited.
【００２３】１．有機性懸濁物を高濃度に含む廃水を嫌
気性処理する前に廃水中から有機性の懸濁物を強制的に
分離するようにしたことから、嫌気性処理時間を大幅に
短縮することができる。1. The anaerobic treatment time can be significantly reduced by forcibly separating organic suspension from wastewater before anaerobic treatment of wastewater containing high concentrations of organic suspension. it can.
【００２４】２．強制分離した後の有機性懸濁物を別経
路で可溶化・酸生成して有機性懸濁物の一部を可溶性の
有機酸に変換するようにしたことから、当初の有機性懸
濁物の総量を減量し安定化することが可能となり、処分
が容易となる。2. The organic suspension after forcible separation was solubilized and acid-generated by another route to convert a part of the organic suspension to a soluble organic acid. Can be reduced and stabilized, and disposal becomes easier.
【００２５】３．また、この可溶化・酸生成の際に用い
る希釈液として、嫌気性処理した際に発生する弱アルカ
リ性の嫌気性処理水の一部を用いたことにより、効率向
上とランニングコストの低減を達成することができる。3. In addition, as a diluent used for solubilization and acid generation, a part of weakly alkaline anaerobic treated water generated during anaerobic treatment is used, thereby improving efficiency and reducing running cost. be able to.
【図１】本発明方法の実施の一形態を示す工程図であ
る。FIG. 1 is a process chart showing one embodiment of the method of the present invention.
【図２】高濃度懸濁物含有廃水に対する従来の嫌気性処
理方法の例を示す工程図である。FIG. 2 is a process diagram showing an example of a conventional anaerobic treatment method for wastewater containing a high-concentration suspension.
【符号の説明】 １ 一次遠心分離機 ２ 嫌気性処理リアクタ ３ 可溶化・酸生成リアクタ ４ 二次遠心分離機 ５ 活性汚泥槽[Description of Signs] 1 Primary centrifuge 2 Anaerobic treatment reactor 3 Solubilization / acid generation reactor 4 Secondary centrifuge 5 Activated sludge tank
Claims (3)
液分離して一次分離液と懸濁物に分離した後、この一次
分離液を嫌気性微生物によってメタン発酵処理し、他方
の懸濁物をアルカリで中和しながら希釈液と共に通性嫌
気性微生物によって可溶化・酸生成を行って可溶性の有
機酸を含む二次廃水に変換し、さらにこの二次廃水を固
液分離して二次分離液と沈殿物に分離した後、この二次
分離液を上記一次分離液と共に廃水処理するようにした
ことを特徴とする高濃度懸濁物含有廃水の処理方法。1. A wastewater containing a high concentration of an organic suspension is separated into a primary liquid and a suspension by solid-liquid separation, and the primary liquid is subjected to methane fermentation treatment with an anaerobic microorganism. The suspension is neutralized with alkali and solubilized and acid-generated by a facultative anaerobic microorganism together with a diluent to convert it into secondary wastewater containing soluble organic acids. A second separation liquid and a precipitate, and then treating the second separation liquid together with the first separation liquid as a wastewater.
液分離して一次分離液と懸濁物に分離した後、この一次
分離液を嫌気性微生物によってメタン発酵処理し、他方
の懸濁物をアルカリで中和しながら希釈液と共に通性嫌
気性微生物によって可溶化・酸生成を行って可溶性の有
機酸を含む二次廃水に変換し、さらに、この二次廃水を
固液分離して二次分離液と沈殿物に分離した後、この二
次分離液を活性汚泥法によって廃水処理するようにした
ことを特徴とする高濃度懸濁物含有廃水の処理方法。2. A wastewater containing a high concentration of an organic suspension is separated into a primary separation liquid and a suspension by solid-liquid separation, and the primary separation liquid is subjected to methane fermentation treatment with an anaerobic microorganism. The suspension is neutralized with an alkali and solubilized and acid-generated by a facultative anaerobic microorganism together with a diluent to convert it into secondary wastewater containing a soluble organic acid. A method for treating wastewater containing high-concentration suspensions, wherein the wastewater is treated by an activated sludge method after separating into a secondary separated liquid and a sediment.
タン発酵処理した際に生成する嫌気性処理水の一部を用
いたことを特徴とする請求項１又は２に記載の高濃度懸
濁物含有廃水の処理方法。3. The high-concentration suspension according to claim 1, wherein a part of the anaerobic treated water generated when the primary separated liquid is subjected to methane fermentation treatment is used as the diluting liquid. Wastewater treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5607697A JPH10249384A (en) | 1997-03-11 | 1997-03-11 | Treatment of concentrated suspended matter-containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5607697A JPH10249384A (en) | 1997-03-11 | 1997-03-11 | Treatment of concentrated suspended matter-containing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10249384A true JPH10249384A (en) | 1998-09-22 |
Family
ID=13017003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5607697A Pending JPH10249384A (en) | 1997-03-11 | 1997-03-11 | Treatment of concentrated suspended matter-containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10249384A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005313120A (en) * | 2004-04-30 | 2005-11-10 | Kurita Water Ind Ltd | Anaerobic treatment apparatus |
| JP2006281035A (en) * | 2005-03-31 | 2006-10-19 | Sumitomo Heavy Ind Ltd | Apparatus and method for treating organic waste |
| JP2012081403A (en) * | 2010-10-08 | 2012-04-26 | Swing Corp | Organic wastewater treatment apparatus and treating method |
| JP2013126665A (en) * | 2013-02-21 | 2013-06-27 | Swing Corp | Apparatus and method for treating organic wastewater |
| JP2013176746A (en) * | 2012-02-29 | 2013-09-09 | Swing Corp | Treatment method and treatment device for organic wastewater |
| WO2023171006A1 (en) * | 2022-03-08 | 2023-09-14 | 株式会社サピエナント | Organic matter treatment system and organic matter treatment method |
-
1997
- 1997-03-11 JP JP5607697A patent/JPH10249384A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005313120A (en) * | 2004-04-30 | 2005-11-10 | Kurita Water Ind Ltd | Anaerobic treatment apparatus |
| JP2006281035A (en) * | 2005-03-31 | 2006-10-19 | Sumitomo Heavy Ind Ltd | Apparatus and method for treating organic waste |
| JP2012081403A (en) * | 2010-10-08 | 2012-04-26 | Swing Corp | Organic wastewater treatment apparatus and treating method |
| JP2013176746A (en) * | 2012-02-29 | 2013-09-09 | Swing Corp | Treatment method and treatment device for organic wastewater |
| JP2013126665A (en) * | 2013-02-21 | 2013-06-27 | Swing Corp | Apparatus and method for treating organic wastewater |
| WO2023171006A1 (en) * | 2022-03-08 | 2023-09-14 | 株式会社サピエナント | Organic matter treatment system and organic matter treatment method |
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