JP3303905B2 - Anaerobic digestion of livestock manure - Google Patents
Anaerobic digestion of livestock manureInfo
- Publication number
- JP3303905B2 JP3303905B2 JP5862497A JP5862497A JP3303905B2 JP 3303905 B2 JP3303905 B2 JP 3303905B2 JP 5862497 A JP5862497 A JP 5862497A JP 5862497 A JP5862497 A JP 5862497A JP 3303905 B2 JP3303905 B2 JP 3303905B2
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- livestock manure
- tank
- manure
- anaerobic digestion
- 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 - Fee Related
Links
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Processing Of Solid Wastes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、嫌気性消化処理法
に係り、特に家畜糞尿を糞と尿を分離することなく、そ
のまま処理できる嫌気性消化処理法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anaerobic digestion method, and more particularly to an anaerobic digestion method capable of treating livestock manure without separating feces and urine.
【０００２】[0002]
【従来の技術】家畜糞尿の処理は、従来廃水処理設備の
有機物負荷を軽減するため、畜舎で糞と尿を分離する方
式が採用されている。家畜糞尿の嫌気性消化処理は、省
エネルギー的処理方法として広く採用されていたが、メ
タンガスの有効利用、温度管理等の維持管理に問題があ
り、現在はほとんど運転されていない。畜産事業は出荷
する製品（牛、豚、乳製品等）の価格に糞尿の処理経
費、特に電力費が直接関わるために、処理費用の低減、
処理のためのエネルギー自給が、糞尿処理の最大の懸案
課題である。また、家畜糞尿には高濃度の有機性固形物
が含有されているが、この固形物の可溶化が消化反応の
律速になるため、短時間では十分な消化処理を行うこと
ができなかった。さらに、畜舎においては糞尿を分離す
るために、実際には分離設備と作業が必要であり、糞尿
一体の処理が望まれている。2. Description of the Related Art In the treatment of livestock manure, a method of separating feces and urine in a livestock barn has conventionally been adopted in order to reduce the load of organic matter on wastewater treatment equipment. Anaerobic digestion of livestock excreta has been widely adopted as an energy-saving treatment method. However, there is a problem in maintenance and management such as effective use of methane gas and temperature control. In the livestock business, since the cost of manure processing, especially electricity costs, is directly related to the price of products to be shipped (cows, pigs, dairy products, etc.),
Energy self-sufficiency for processing is the biggest concern of manure processing. In addition, livestock manure contains a high concentration of organic solid matter, but since the solubilization of this solid matter controls the digestion reaction, sufficient digestion treatment could not be performed in a short time. Furthermore, in a livestock barn, in order to separate manure, separation facilities and work are actually required, and the treatment of manure integrated is desired.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記従来技
術に鑑み、糞尿の一体処理ができ、短時間に十分な消化
処理ができる家畜糞尿の嫌気性消化処理法を提供するこ
とを課題とする。SUMMARY OF THE INVENTION In view of the above prior art, an object of the present invention is to provide a method for anaerobic digestion of livestock manure, which can integrally treat manure and can perform a sufficient digestion treatment in a short time. I do.
【０００４】[0004]
【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、家畜糞尿を、固液分離を行なわずにその
まま高温で改質しつつ又は高温で改質処理した後に、圧
搾して來雑物を分離し、生じた搾汁液を生物学的に可溶
化し、次いで中水温でメタン発酵することを特徴とする
家畜糞尿の嫌気性消化処理法としたものである。 In order to solve the above problems SUMMARY OF THE INVENTION The present invention is livestock manure, as it is after the modification treatment with reformed while being or elevated temperature in a high temperature without solid-liquid separation, pressure
The method is an anaerobic digestion treatment method for livestock manure, which comprises squeezing and separating foreign matters, biologically solubilizing the resulting squeezed liquid , and then methane fermenting at an intermediate water temperature .
【０００５】前記処理法において、改質処理するための
高温とは、７０〜９０℃が良い。処理時間は温度、家畜
の餌等によって変化するが、高温ほど短時間で良く、９
０℃では数分、６０℃で１２時間程度が目安となる。可
溶化は、微生物の酸性発酵反応によって主に進行する。
従って、可溶化温度は微生物活性の高い３０〜５５℃近
傍が好ましく、可溶化時間は改質物の性状にもよるが１
〜４日程度でよい。可溶化は可溶化槽に野性的に増殖す
る菌によって進行するが、後続するメタン発酵槽の液、
汚泥を可溶化槽に注入するのは種菌添加として効果を期
待できる。前記嫌気性消化処理法において、メタン発酵
で発生するバイオガスを発電機に供給し、生じる発電機
の排ガスを加熱源として、家畜糞尿を高温で改質、処理
するのが良い。また、夾雑物を分離する圧搾は、スクリ
ュープレス脱水機等の圧搾型脱水機を用いて行うことが
できる。In the above-mentioned processing method, the high temperature for the reforming treatment is preferably 70 to 90 ° C. The treatment time varies depending on the temperature, livestock feed, etc.
The standard is several minutes at 0 ° C. and about 12 hours at 60 ° C. Solubilization mainly proceeds by the acid fermentation reaction of the microorganism.
Therefore, the solubilization temperature is preferably around 30 to 55 ° C. where the microbial activity is high.
It may be about 4 days. Solubilization proceeds by bacteria that grow wildly in the solubilization tank, but the liquid in the subsequent methane fermentation tank,
Injecting sludge into the solubilization tank can be expected to be effective as an inoculum. In the anaerobic digestion treatment method, it is preferable that biogas generated by methane fermentation is supplied to a generator, and livestock manure is reformed and treated at a high temperature using exhaust gas of the generated generator as a heating source. The pressing for separating the contaminants can be performed using a pressing type dehydrator such as a screw press dehydrator.
【０００６】[0006]
【発明の実施の形態】次に、本発明を図面を用いて詳細
に説明する。図１に、本発明の処理法を豚糞尿の処理に
適用した際の工程図の一例を示す。豚糞尿１は、受入槽
２を経由して、改質槽３で高温の蒸気８の直接吹き込み
等によって、水温が６０℃以上に昇温され、糞尿１中の
有機性ＳＳ（浮遊固形物）が熱変性によって改質された
のちに、例えばスクリュープレス脱水機のような圧搾式
夾雑物除去装置４で、糞尿中の生物不活性の毛、藁等の
夾雑物５を分離、脱水除去するとともに、糞中の軟質の
固形分は尿と共にスクリュープレスから搾汁液６として
搾り取られる。昇温方法としては、熱交換器は高温では
尿中のカルシウム等によって短時間でスケールが付着
し、好ましくないので、直接蒸気８を吹き込むのがよ
い。改質槽３は調整槽として利用することもできる。搾
汁液６は次に可溶化槽７に導入され、５５℃前後、ある
いは３８℃で、改質された搾汁液が生物学的に可溶化す
る。可溶化槽７の水温降下が著しい場合には、蒸気８を
圧入して水温を保つことができる。可溶化槽７の滞留日
数は２〜４日程度あればよい。改質槽３で熱変性したＳ
Ｓ（浮遊固形物）は、可溶化槽７で十分可溶化され低分
子化される。Next, the present invention will be described in detail with reference to the drawings. FIG. 1 shows an example of a process chart when the treatment method of the present invention is applied to the treatment of pig manure. The water temperature of the pig manure 1 is raised to 60 ° C. or more by the direct injection of high-temperature steam 8 in the reforming tank 3 via the receiving tank 2, and the organic SS (suspended solid matter) in the manure 1 Is reformed by heat denaturation, and then, in a squeeze-type debris removal device 4 such as a screw press dehydrator, for example, the biologically inactive hair, straw and other contaminants 5 in manure are separated, dehydrated and removed. The soft solids in the feces are squeezed together with urine as a juice 6 from a screw press. As a method of raising the temperature, the heat exchanger is not preferable because the scale adheres to calcium in urine in a short time at a high temperature and the steam 8 is preferably blown directly. The reforming tank 3 can be used as an adjusting tank. The juice 6 is then introduced into the solubilization tank 7 where the modified juice is biologically solubilized at around 55 ° C. or at 38 ° C. When the temperature of the water in the solubilization tank 7 drops significantly, steam 8 can be injected to maintain the water temperature. The residence time of the solubilization tank 7 may be about 2 to 4 days. S thermally denatured in reforming tank 3
S (suspended solid matter) is sufficiently solubilized in the solubilization tank 7 to be reduced in molecular weight.
【０００７】可溶化槽７の流出液は、３８℃前後に調整
されているメタン発酵槽９に導入され、水中の有機物が
メタンガスと炭酸ガスに分解され、バイオガス１０とし
て脱硫器１１、ガス貯留用ガスタンク１２を経由して、
ボイラー１９に供給される。メタン発酵槽９の滞留日数
は１０〜２０日あればよいが、有機物をできるだけガス
化するため、許容範囲で滞留日数は長い方が望ましい。
メタン発酵槽９の流出液は、次に固液分離工程１３に導
入され、消化脱離液１４と消化汚泥１５に分離され、消
化脱離液１４に残存するＢＯＤ物質は、活性汚泥法等の
従来の好気的処理方法による生物処理装置１６によっ
て、酸化処理され、処理水１７として放流される。[0007] The effluent from the solubilization tank 7 is introduced into a methane fermentation tank 9 adjusted to about 38 ° C., and organic matter in the water is decomposed into methane gas and carbon dioxide gas. Via the gas tank 12 for
It is supplied to the boiler 19. The residence time of the methane fermentation tank 9 may be 10 to 20 days, but it is desirable that the residence time be as long as possible in order to gasify organic matter as much as possible.
The effluent from the methane fermentation tank 9 is then introduced into a solid-liquid separation step 13 where it is separated into digestion-desorption liquid 14 and digestion sludge 15, and BOD substances remaining in the digestion-desorption liquid 14 are separated by an activated sludge method or the like. It is oxidized by a biological treatment device 16 using a conventional aerobic treatment method, and is discharged as treated water 17.
【０００８】被搾汁液の熱による改質は、昇温によって
豚糞尿の粘性が低下するので、搾汁量が増加するととも
に脱水夾雑物の含水率を低下する利点がある。固液分離
装置１３はエネルギー消費量の少ない沈殿槽が望ましい
が、消化液１８の濃度が高くて重力沈殿が難しい場合に
は、遠心濃縮機などの機械式分離装置あるいは膜分離機
を用いるとよい。消化汚泥１５は、直接農地に散布して
もよいが、脱水後にスクリュープレス夾雑物５と混合し
てコンポスト化するとよい。豚糞尿１を熱変性させる他
の方法として、蒸気を直接スクリュープレス脱水機のス
クリュー軸内に圧入して、加熱脱水を行うのも有力な方
法である。この場合は改質槽３を省略することが可能で
ある。[0008] Since the viscosity of pig manure is reduced by raising the temperature, the reforming of the juice to be processed by heat has the advantage of increasing the amount of juice and reducing the water content of dehydrated impurities. The solid-liquid separator 13 is desirably a sedimentation tank with low energy consumption. However, when the concentration of the digestion liquid 18 is high and gravity sedimentation is difficult, a mechanical separator such as a centrifugal concentrator or a membrane separator may be used. . The digested sludge 15 may be directly sprayed on farmland, but it is preferable to mix it with the screw press contaminants 5 after dehydration to make compost. As another method for heat denaturation of the pig manure 1, heat dehydration by directly injecting steam into the screw shaft of a screw press dehydrator is also an effective method. In this case, the reforming tank 3 can be omitted.
【０００９】次に、本発明の処理法を実施する別の工程
図を図２に示す。図２において、豚糞尿１は受入槽２を
経由して、スクリュープレス型脱水機改質槽３で搾汁
し、搾汁液６を改質槽３で改質してから、可溶化するも
のである。糞尿１は温度上昇に従って悪臭の発生量が増
大するので、スクリュープレス脱水機による搾汁作業に
おいて、悪臭の発生による障害が生じる場合は、被搾汁
液が低温の本実施態様を利用すればよい。しかしなが
ら、前記した被搾汁液を昇温する方法による利点は得ら
れない。本発明では、メタン発酵槽で発生するバイオガ
ス１０を、ガスエンジン式発電機に導入して発電を行
い、排ガスを前記蒸気の代わりに熱源として利用するも
のである。これによって、処理施設稼働の電力を確保す
ることができ、発電機排ガスの圧入によって加温、攪拌
を行うことができる。Next, another process chart for carrying out the processing method of the present invention is shown in FIG. In FIG. 2, swine manure 1 is squeezed through a receiving tub 2 in a screw press type dehydrator reforming tub 3, squeezed liquid 6 is reformed in the reforming tub 3, and then solubilized. is there. Since the amount of foul odor generated in the manure 1 increases as the temperature rises, in the squeezing operation by the screw press dewatering machine, if an obstacle due to the generation of foul odor occurs, the present embodiment in which the liquid to be squeezed is low may be used. However, the advantage of the above-mentioned method of raising the temperature of the juice is not obtained. In the present invention, the biogas 10 generated in the methane fermentation tank is introduced into a gas engine type generator to generate power, and the exhaust gas is used as a heat source instead of the steam. As a result, power for operating the processing facility can be secured, and heating and stirring can be performed by injecting the exhaust gas from the generator.
【００１０】[0010]
【実施例】以下、本発明を実施例により具体的に説明す
る。 実施例１ 図１に基づいて、豚糞尿を次の処理条件で処理した。 ・処理条件 豚糞尿量： 約１ｍ3 ／日、 搾汁液処理量： １ｍ3 ／日、 圧搾式夾雑物除去装置： スクリュープレス脱水機、 脱水夾雑物含水率： ６３％、The present invention will be described below in more detail with reference to examples. Example 1 Based on FIG. 1, swine manure was processed under the following processing conditions.・ Treatment conditions Swine manure volume: about 1 m 3 / day, squeezed liquid processing volume: 1 m 3 / day, Squeeze-type debris removal equipment: Screw press dewatering machine, Dewatered debris moisture content: 63%,
【００１１】 ガスタンク： ２０ｍ3 、 固液分離装置： 遠心脱水機、 生物処理水槽： 酸化池（有効容積 ３ｍ3 ）、 ・処理結果 ガス発生量： ４１ｍ3 ／日、 搾汁液（６）、消化脱離液（１４）及び処理水（１７）
の処理結果を表１に示す。[0011] Gas tank: 20m 3 , Solid-liquid separation device: Centrifugal dehydrator, Biological treatment tank: Oxidation pond (effective volume 3m 3 ), ・ Processing result Gas generation amount: 41m 3 / day, Squeezed liquid (6), Digestion / desorption liquid ( 14) and treated water (17)
Is shown in Table 1.
【００１２】実施例２ 搾汁液１ｍ3 ／日の処理において、ボイラーからの蒸気
の改質槽注入分を、スクリュー軸内部が空洞のスクリュ
ープレス脱水機の軸内部に圧入して、加温しつつ豚糞尿
を脱水し、実施例１の改質槽を省略して運転を行った。
その結果、改質槽を省略しても、表１と同様の処理結果
を得ることができた。Example 2 In the treatment of 1 m 3 / day of squeezed liquid, the injection amount of steam from the boiler into the reforming tank was pressed into the inside of a screw press dehydrator having a hollow screw shaft, and heated. The pig manure was dehydrated, and the operation was performed with the reforming tank of Example 1 omitted.
As a result, even if the reforming tank was omitted, the same processing results as in Table 1 could be obtained.
【００１３】実施例３ 搾汁液１ｍ3 ／日の処理において、メタン発酵槽から発
生したバイオガスを用いて、２．５ｋＷのガスエンジン
による発電を行い、加温のため、蒸気に代えた排ガスを
改質槽に注入して、実施例１と同様の運転を行った。そ
の結果、処理装置の大部分の駆動電力を自給でき、搾汁
液の処理も表１と同様の結果を得た。Example 3 In the treatment of squeezed liquid 1 m 3 / day, biogas generated from a methane fermentation tank was used to generate power using a 2.5 kW gas engine, and the exhaust gas was replaced with steam for heating. It injected | poured into the reforming tank and performed the same operation as Example 1. As a result, most of the driving power of the processing apparatus was self-supplied, and the processing of the juice was similar to that shown in Table 1.
【００１４】実施例４ 搾汁液１ｍ3 ／日の処理において、図２のフローに基づ
いて、ボイラーからの蒸気の改質槽に注入した。実施例
１の運転条件で表１と同等の結果を得ることができた。Example 4 In the treatment of squeezed liquid of 1 m 3 / day, steam from a boiler was injected into a reforming tank based on the flow of FIG. Under the operating conditions of Example 1, the same results as in Table 1 could be obtained.
【表１】 注１） 搾汁液は平均値、消化脱離液、酸化池処理水は変動幅を示した。[Table 1] Note 1) The average value of the squeezed liquid, the fluctuation of the digested and desorbed liquid, and the oxidized pond treated water showed fluctuations.
【００１５】[0015]
【発明の効果】本発明によれば、次のような効果を奏す
ることができる。 （ａ）家畜の糞と尿を分別する必要がないので、畜舎の
構造を簡単化でき、また面倒な分別作業を省略できる。 （ｂ）家畜糞尿を、嫌気性消化処理で発生するバイオガ
スを利用し、加熱処理して改質することによって、嫌気
性消化処理を安定化することができ、また処理日数の短
縮化を期待することができる。 （ｃ）改質、可溶化によって嫌気性消化のバイオガス発
生量を増加することができるので、処理施設のエネルギ
ー（電力）自給率を向上することができる。 （ｄ）現在、クリプトスポルジウムや病原性大腸菌等の
微生物による汚染、感染が問題になっているが、本発明
による加熱処理は放流水系及びコンポスト製品の汚染に
よるリスクを回避できる。According to the present invention, the following effects can be obtained. (A) Since it is not necessary to separate livestock dung and urine, the structure of the livestock barn can be simplified and troublesome sorting work can be omitted. (B) Livestock manure can be stabilized by anaerobic digestion treatment by using biogas generated by anaerobic digestion treatment and reforming by heating treatment, and expect to shorten the number of treatment days can do. (C) Since the amount of biogas generated by anaerobic digestion can be increased by reforming and solubilizing, the energy (electric power) self-sufficiency of the treatment facility can be improved. (D) At present, contamination and infection by microorganisms such as Cryptosporidium and pathogenic Escherichia coli are problematic, but the heat treatment according to the present invention can avoid the risk due to contamination of the effluent system and compost products.
【図１】本発明の処理法を実施するための工程図。FIG. 1 is a process chart for carrying out the treatment method of the present invention.
【図２】本発明の処理法を実施するための別の工程図。FIG. 2 is another process chart for carrying out the treatment method of the present invention.
１：豚糞尿、２：受入槽、３：改質槽、４：圧搾式夾雑
物除去装置、５：夾雑物、６、搾汁液、７：可溶化槽、
８：蒸気、９：メタン発酵槽、１０：バイオガス、１
１：脱硫器、１２：ガス貯留タンク、１３：固液分離工
程、１４：消化脱離液、１５：消化汚泥、１６：生物処
理装置、１７：処理水、１８：消化液、１９：ボイラー1: Pig manure, 2: Receiving tank, 3: Reforming tank, 4: Squeezing type foreign matter removing device, 5: Foreign matter, 6, squeezed liquid, 7: Solubilizing tank,
8: steam, 9: methane fermenter, 10: biogas, 1
1: desulfurizer, 12: gas storage tank, 13: solid-liquid separation step, 14: digestion / desorption liquid, 15: digested sludge, 16: biological treatment equipment, 17: treated water, 18: digestion liquid, 19: boiler
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中森 良洋 東京都大田区羽田旭町11番１号 株式会 社荏原製作所内 (72)発明者 鈴木 芳郎 東京都大田区羽田旭町11番１号 株式会 社荏原製作所内 (56)参考文献 特開 昭53−96972（ＪＰ，Ａ) 特開 平７−204697（ＪＰ，Ａ) 特開 平８−229595（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B09B 3/00 C02F 11/04 ──────────────────────────────────────────────────続 き Continued on the front page (72) Yoshihiro Nakamori, Inventor Yoshihiro Suzuki 11-1 Haneda Asahimachi, Ota-ku, Tokyo (72) Inventor Yoshiro Suzuki 11-1 Haneda Asahi-cho, Ota-ku, Tokyo (56) References JP-A-53-96972 (JP, A) JP-A-7-204697 (JP, A) JP-A 8-229595 (JP, A) (58) Fields investigated ( Int.Cl. 7 , DB name) B09B 3/00 C02F 11/04
Claims (2)
まま高温で改質しつつ又は高温で改質処理した後に、圧
搾して夾雑物を分離し、生じた搾汁液を生物学的に可溶
化し、次いで中水温でメタン発酵することを特徴とする
家畜糞尿の嫌気性消化処理法。The method according to claim 1 livestock manure, as it is after the modification treatment with reformed while being or elevated temperature in a high temperature without solid-liquid separation, pressure
An anaerobic digestion method for livestock manure, which comprises squeezing to separate impurities, biologically solubilizing the resulting squeezed liquid , and then methane fermenting at an intermediate water temperature.
理法において、前記メタン発酵で発生するバイオガスを
発電機に供給し、生じる発電機の排ガスを加熱源とし
て、家畜糞尿を高温で改質処理することを特徴とする家
畜糞尿の嫌気性消化処理法。2. An anaerobic digester for livestock manure according to claim 1.
In law, the supply biogas generated in the methane fermentation in the generator, as a heat source the generator of the exhaust gas occurs, characterized by modifying treatment livestock manure in the high temperature home <br/> animal feces urine Anaerobic digestion treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5862497A JP3303905B2 (en) | 1997-02-27 | 1997-02-27 | Anaerobic digestion of livestock manure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5862497A JP3303905B2 (en) | 1997-02-27 | 1997-02-27 | Anaerobic digestion of livestock manure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10235317A JPH10235317A (en) | 1998-09-08 |
| JP3303905B2 true JP3303905B2 (en) | 2002-07-22 |
Family
ID=13089743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5862497A Expired - Fee Related JP3303905B2 (en) | 1997-02-27 | 1997-02-27 | Anaerobic digestion of livestock manure |
Country Status (1)
| Country | Link |
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| JP (1) | JP3303905B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210497A (en) * | 2001-01-17 | 2002-07-30 | Ebara Corp | Method and device for methane fermentation treatment of cattle excreta |
| JP4671520B2 (en) * | 2001-03-23 | 2011-04-20 | 三菱重工環境・化学エンジニアリング株式会社 | Organic solids processing system |
| JP3788939B2 (en) * | 2002-01-31 | 2006-06-21 | 株式会社神戸製鋼所 | Gas purification method and method of using the same |
| CA2416690C (en) | 2003-01-20 | 2008-08-12 | Alberta Research Council Inc. | Process for removal and recovery of nutrients from digested manure or other organic wastes |
| JP4317546B2 (en) * | 2005-12-15 | 2009-08-19 | 株式会社神戸製鋼所 | Gas purification method and method of using the same |
| JP2007192541A (en) * | 2007-04-09 | 2007-08-02 | Ishikawajima Harima Heavy Ind Co Ltd | Livestock manure treatment system |
| US7927491B2 (en) | 2007-12-21 | 2011-04-19 | Highmark Renewables Research Limited Partnership | Integrated bio-digestion facility |
| CN102219333A (en) * | 2011-02-23 | 2011-10-19 | 青岛天人环境股份有限公司 | Treatment method of manure waste generated in process of soaking manure in water in breeding farm |
| JP5781790B2 (en) * | 2011-03-08 | 2015-09-24 | 青山 吉郎 | Heat dehydration of sludge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5396972A (en) * | 1977-02-07 | 1978-08-24 | Mitsubishi Heavy Ind Ltd | Treating method for waste matter |
| JPH07204697A (en) * | 1994-01-17 | 1995-08-08 | Meidensha Corp | Apparatus for supplying both electric power and heat utilizing waste material |
| JPH08229595A (en) * | 1995-02-24 | 1996-09-10 | Shinko Pantec Co Ltd | High temperature digestion treating device for sludge and high temperature digestion treatment |
-
1997
- 1997-02-27 JP JP5862497A patent/JP3303905B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10235317A (en) | 1998-09-08 |
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