WO1995021140A1 - Procede de traitement de lisier pateux et dispositif pour sa mise en oeuvre - Google Patents

Procede de traitement de lisier pateux et dispositif pour sa mise en oeuvre Download PDF

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Publication number
WO1995021140A1
WO1995021140A1 PCT/BE1995/000011 BE9500011W WO9521140A1 WO 1995021140 A1 WO1995021140 A1 WO 1995021140A1 BE 9500011 W BE9500011 W BE 9500011W WO 9521140 A1 WO9521140 A1 WO 9521140A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
aqueous phase
semi
fraction
manure
Prior art date
Application number
PCT/BE1995/000011
Other languages
English (en)
Inventor
Cesar Achiel Maurice De Vos
Leon Georges Petrus Blanckaert
Original Assignee
G.C.M. Geodetics Construction Maintenance
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G.C.M. Geodetics Construction Maintenance filed Critical G.C.M. Geodetics Construction Maintenance
Priority to AU15719/95A priority Critical patent/AU1571995A/en
Publication of WO1995021140A1 publication Critical patent/WO1995021140A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin

Definitions

  • This invention relates to a method for processing semi-liquid manure, wherein this semi-liquid manure is separated in a liquid and a solid fraction.
  • Such a method is for example already disclosed in British Patent No. 1 576 423.
  • the semi-liquid manure is subjected to a vacuum filtration step, the obtained solid fraction being further squeezed under pressure to a moisture content of about 57%.
  • a marketable solid product is obtained, possibly after mixing with peat, sand or soil.
  • the invention has therefore as object to provide a method, which does not only produce a usable solid product, but which also offers a reusable liquid.
  • Said membrane separation is preferably done by application of the reverse osmosis technique. It was found that, compared to nanofiltration for example, this technique offers better results. The membranes have further a longer life span.
  • anions are removed out of said aqueous phase through ion exchange prior to said membrane separation.
  • anions such as nitrate are removed.
  • Most of the cations of the aqueous phase arrive into the concentrate of the membrane separation, while in addition to this purified water is obtained.
  • This water can be reused for example to clean stables, installations and the like, or it can also be used as drinking-water. In this latter case, minerals should be added, due to the low content of minerals.
  • said separation of the semi- liquid manure in said liquid and solid fraction is carried out by sieving, more particularly on a shaking and/or vibrating sieve.
  • said aqueous phase is subjected prior to said membrane separation, in particular prior to said ion exchange, to an ultrafiltration step.
  • said ultrafiltration chain molecules such as proteins and the like, are removed, as a result of which these can no longer disturb the subsequent finer membrane separation and possibly also the ion exchange step.
  • An important advantage of the method according to the invention is that it can work as a closed system. With this is meant that only reusable products are produced. Both the above described supernatant phase and the sedimented phase can indeed be added again to the solid fraction and thus also serve as fertilizer.
  • the concentrate of the membrane separation and the optional rest stream or concentrate of the ultrafiltration, on the contrary, can be added to the liquid fraction.
  • said ion exchange is carried out further in an ion exchanger, which is rinsed with lime milk at predetermined points in time.
  • lime milk enriched with the anions from the ion exchanger, in particular with nitrate is a valuable fertilizer, which may possibly be added to the solid fraction after evaporation of the water. In this way, only a solid fertilizer and purified water are obtained.
  • the invention further also relates to a device for processing semi-liquid manure by applying the method according to the invention.
  • the characterising properties of this device are pointed out in claim 10.
  • Table 1 Composition of semi-liguid pig manure in kg/m 3
  • the semi-liquid manure is mechanically separated in a solid and a liquid fraction.
  • This sieve 3 retains in particular particles with a size up to 150 ⁇ .
  • the pump 2 is for example a three-way pump by means of which a portion of the semi-liquid manure can simultaneously be pumped again in the manure pit 1 so as to obtain in this way a homogeneous mixture.
  • a solidified fertilizer can be obtained which is conveyed by means of an Archimedean screw 4 to a reservoir 5, wherein the solid fertilizer can dry further. Any liquid which may possibly be set free by leaching, is guided again to the manure pit 1. The application of such a natural drying process results in an important increase in efficiency of the system.
  • a preparation on the basis of enzymes and/or bacteria is administered automatically by means of a dosing device 7.
  • These enzymes and/or bacteria provide a decomposition of colloidally suspended particles or agglomerates which are present in the liquid fraction and this through a biochemical decomposition process.
  • these enzymes and/or bacteria have at least a polypeptidase effect, more particularly an ⁇ and 0-polypeptidase effect.
  • the decomposition process continues at least until said agglomerates, which contain i.a. fats, sugars (starch) and proteins, are disintegrated into smaller components.
  • the liquid fraction is pumped over by means of pump 2 into a processing tank 8, wherein the biochemical decomposition process can continue.
  • This tank 8 has for example a volume that is substantially equal to the total amount of semi-liquid manure to' be processed daily.
  • the liquid fraction is subjected to a first flotation/sedimentation step. Due to the partial decomposition of the colloidal particles, this colloidal system is indeed disturbed in such a manner that a portion of the solid matter which is present will start to float, while another portion will settle down. Both the supernatant and the sedimented fraction are again applied onto the sieve 3, and this via an overflow 9 and a valve 10, respectively. Preferably, a portion of the solid fraction of the semi-liquid manure is still present on the sieve 3 , which contributes in preventing the supernatant and the ⁇ edimented fraction to arrive again into the reservoir 6.
  • a partition wall is preferably provided in the processing tank 8 a partition wall is preferably provided.
  • the supply of liquid fraction in this tank 8 is controlled in particular in such a manner, that only a minimal disturbance of the liquid occurs.
  • an analogous buffer tank 11 wherein the aqueous phase of the processing tank 8 is transferred through a valve 12.
  • the enzymes and/or bacteria can do their work further and a separation of supernatant and sedimented phase is carried out again, via overflow 13 and valve 14, respectively.
  • a fan 15 is provided for exhausting gasses which are released from the liquid fraction, such as for example C0 2 , produced by the aerobic bacteria. Furthermore a filter 16 is provided for purifying these gasses.
  • the aqueous phase removed from the buffer tank 11, is preferably first passed through an ultrafiltration system 17 or through an analogous filter system such as for example so called “cartridge filters” by means of which also bacteria and larger chain molecules can be removed.
  • an important advantage of the method according to the invention is that the colloidal system or the emulsion can be broken in the tanks 8 and 11 by enzymes and/or aerobic bacteria, which will not accumulate or only to a small extent on the membranes of the ultrafiltration system. If, on the other hand, polyelectrolytes are used, it was found that the ultrafiltration membranes were quickly clogged up. Also a hard mass was obtained in the tanks 8 and 11 which was difficult to be processed further.
  • the concentrate of the ultrafiltration system 17 can possibly be passed again to the storage tank 6, while the permeate is subjected to a further membrane separation in a membrane separator 19.
  • an additional buffer tank 27 of for example 6000 1 wherein the concentrate of the ultrafiltration system is pumped in again over a valve 18, is provided in the shown embodiment between these tanks and the ultrafiltration system 17.
  • the flow rate of this concentrate is indeed normally 70 times higher than the flow rate of the permeate. If the concentration in this additional buffer tank becomes too high, a portion thereof is fed again via a duct 28 to the shaking sieve, either on the semi-liquid manure, but preferably on compost or another organic material, which is thus enriched with plant nutrition elements.
  • an overflow is provided which leads via a duct 29 also to the shaking sieve.
  • the flow rate through the tanks 8 and 11 can be kept smaller and constant.
  • This tank enables also to control the temperature of the liquid fed via the duct 30 to the ultrafiltration system, in particular preferably between 30 and 35°C, to permit the ultrafiltration to be carried out under optimal circumstances.
  • membrane separator 19 use can possibly be made of a nanofiltration system. Furthermore, use could be made of an electrodialysis system, which is however relatively expensive. In the preferred embodiment as shown in the figure, better results are obtained, compared to a nanofiltration system, in a less expensive way by using a membrane separator 19 on the basis of the reverse osmosis technique.
  • an ion exchanger 22 is provided for removing anions out of the permeate of the ultrafiltration system 17. The major part of these anions is formed by nitrates, because most of the phosphates remained already in the solid fraction.
  • the exchanger is rinsed at predetermined points in time with a liquid from reservoir 23.
  • a liquid use is preferably made of lime milk.
  • this lime milk is substantially saturated with ions, it forms a valuable fertilizer.
  • the saturated lime milk is then dried in a drying-device 24 to a solid calcium and nitrogen rich product.
  • a so called "belt drying-device” wherein the evaporation can be speeded up further by blowing in hot air from the stable.
  • the dried product can be used as such or can be admixed to the solid fraction. In this solid fraction, the plant nutrition elements are bound better to the solids than in the original semi-liquid manure, so that they penetrate more slowly into the soil and can be taken up better by the plants.
  • the purified water as it leaves the membrane separator it has experimentally been established to be relatively alkaline. Any remaining ammonia can thus easily be removed by so-called “stripping", involving a fine atomization of the water.
  • the pH can be adjusted by an automatic pH- adjuster 27.
  • the water in the basin 21 can be enriched with oxygen by aeration.
  • the water from the basin 21 can be used as such to clean the stables for example, or can, after addition of minerals, even be used as drinking-water.
  • a part of the purified water is fed through a pipe 25 to a rinsing tank 26. With this water, the ultrafiltration system 17 and the membrane separator 19 can be rinsed at predetermined points in time.
  • the rinsing-pipes required thereto have for clarity's sake not been shown in the figure. If harmless rinsing- liquids are used, the rinsing-water can after use be dosed in the storage tank 6, and this preferable extended in time.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Fertilizers (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Procédé de traitement de lisier pâteux selon lequel on sépare le lisier pâteux par tamisage en une fraction liquide et une fraction solide, et on soumet la fraction liquide à un processus de décomposition biochimique ainsi qu'à une phase de flottation et de dépôt. On soumet ensuite la phase aqueuse ainsi obtenue à des processus d'ultrafiltration, d'échange d'ions, et d'osmose inverse de manière à obtenir de l'eau purifiée et un concentré. On nettoie l'échangeur d'ions avec du lait de chaux, ce qui permet également d'obtenir un engrais utilisable. On a également prévu un dispositif pour la mise en oeuvre de ce procédé.
PCT/BE1995/000011 1994-02-04 1995-02-06 Procede de traitement de lisier pateux et dispositif pour sa mise en oeuvre WO1995021140A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15719/95A AU1571995A (en) 1994-02-04 1995-02-06 Method for processing semi-liquid manure and the device to be used

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9400138A BE1008005A6 (nl) 1994-02-04 1994-02-04 Werkwijze voor het bewerken van drijfmest en daarbij te gebruiken inrichting.
BE9400138 1994-02-04

Publications (1)

Publication Number Publication Date
WO1995021140A1 true WO1995021140A1 (fr) 1995-08-10

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ID=3887949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BE1995/000011 WO1995021140A1 (fr) 1994-02-04 1995-02-06 Procede de traitement de lisier pateux et dispositif pour sa mise en oeuvre

Country Status (3)

Country Link
AU (1) AU1571995A (fr)
BE (1) BE1008005A6 (fr)
WO (1) WO1995021140A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744119A1 (fr) * 1996-01-29 1997-08-01 Rhone Poulenc Chimie Procede de traitement des effluents liquides aqueux contenant des matieres organiques et minerales en vue de leur valorisation
EP0987234A1 (fr) * 1998-09-16 2000-03-22 Agri Protech Procédé de traitement de résidus biologiques et séparateur de phase pour la mise en ouvre de ce procédé
EP0990622A2 (fr) * 1998-09-30 2000-04-05 Bernd-Ulrich Wilk Procédé et dispositif pour la purification biologique des eaux usées
EP0890561A3 (fr) * 1997-07-10 2000-04-19 UFI-TEC Institut für Membrantechnologie GmbH Installation mobile pour le traitement des lisiers
WO2001044123A1 (fr) * 1999-12-16 2001-06-21 Texaco Development Corporation Procede d'elimination de contaminants organiques et inorganiques des eaux residuaires au moyen de l'ultrafiltration et de l'osmose inverse
FR2812627A1 (fr) * 2000-08-07 2002-02-08 Abderrazack Djenani Procede d'epuration en continu d'eaux usees industrielles et dispositifs pour sa mise en oeuvre
ES2183743A1 (es) * 2001-08-17 2003-03-16 Johannes Adria Thomassen Instalacion de reciclaje de residuos agropecuarios y similares.
WO2003086977A1 (fr) * 2002-04-09 2003-10-23 Institut National De La Recherche Scientifique Procedes et appareils de traitement d'engrais animal
CN100379687C (zh) * 2003-03-19 2008-04-09 亚瑟·斯蒂芬·海蕾 水净化系统
WO2010127442A1 (fr) * 2009-05-05 2010-11-11 Ross Thurston Système et procédé de traitement des eaux usées d'élevage
ITVR20100127A1 (it) * 2010-06-23 2011-12-24 Alghisi Paolo Impianto e procedimento per l'estrazione di azoto ammoniacale da reflui liquidi, particolarmente per la riduzione della quantita' di refluo destinata allo spandimento
DK177918B1 (da) * 2008-05-07 2015-01-05 Purfil Aps Fremgangsmåde og apparat til behandling af gylle og ajle fra husdyr, samt biologisk belastet spildevand.
CN114315433A (zh) * 2020-10-09 2022-04-12 绿巨酶生技股份有限公司 厨余处理装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502919A (nl) * 1985-10-25 1987-05-18 Antonius Wilhelmus Cornelis Va Werkwijze voor het verwerken van drijfmest en elektroforese-inrichting.
EP0315713A1 (fr) * 1987-11-11 1989-05-17 Josef van Opbergen GmbH & Co KG Procédé et installation pour le traitement des eaux usées en provenant du maintien d animaux
DE3911024A1 (de) * 1989-04-05 1990-10-11 Omnitech Computertechnik Und E Verfahren und anlage zum vermindern des bei einer tierhaltung anfallenden guelle-volumes
JPH0368498A (ja) * 1989-08-09 1991-03-25 Ebara Infilco Co Ltd 有機性汚水の処理方法
WO1994002418A1 (fr) * 1992-07-22 1994-02-03 Flocco-Tec Aps Procede et appareil pour purifier des suspensions aqueuses contenant des matieres organiques et des cations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502919A (nl) * 1985-10-25 1987-05-18 Antonius Wilhelmus Cornelis Va Werkwijze voor het verwerken van drijfmest en elektroforese-inrichting.
EP0315713A1 (fr) * 1987-11-11 1989-05-17 Josef van Opbergen GmbH & Co KG Procédé et installation pour le traitement des eaux usées en provenant du maintien d animaux
DE3911024A1 (de) * 1989-04-05 1990-10-11 Omnitech Computertechnik Und E Verfahren und anlage zum vermindern des bei einer tierhaltung anfallenden guelle-volumes
JPH0368498A (ja) * 1989-08-09 1991-03-25 Ebara Infilco Co Ltd 有機性汚水の処理方法
WO1994002418A1 (fr) * 1992-07-22 1994-02-03 Flocco-Tec Aps Procede et appareil pour purifier des suspensions aqueuses contenant des matieres organiques et des cations

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 227 (C - 0839) 10 June 1991 (1991-06-10) *

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744119A1 (fr) * 1996-01-29 1997-08-01 Rhone Poulenc Chimie Procede de traitement des effluents liquides aqueux contenant des matieres organiques et minerales en vue de leur valorisation
WO1997028101A1 (fr) * 1996-01-29 1997-08-07 Rhodia Chimie Procede de traitement des effluents liquides aqueux contenant des matieres organiques et minerales en vue de leur valorisation
JPH11504897A (ja) * 1996-01-29 1999-05-11 ロディア シミ 有機及び無機物を含有する水性液状流出物をその有益化のために処理する方法
US6245121B1 (en) 1996-01-29 2001-06-12 Rhodia Chimie Method for treating aqueous liquid effluents containing organic and inorganic materials to enable recycling thereof
EP0890561A3 (fr) * 1997-07-10 2000-04-19 UFI-TEC Institut für Membrantechnologie GmbH Installation mobile pour le traitement des lisiers
EP0987234A1 (fr) * 1998-09-16 2000-03-22 Agri Protech Procédé de traitement de résidus biologiques et séparateur de phase pour la mise en ouvre de ce procédé
FR2784094A1 (fr) * 1998-09-16 2000-04-07 Agri Protech Procede de traitement de residus biologiques et separateur de phase pour la mise en oeuvre du procede de traitement selon l'invention ou d'autres procedes
EP0990622A2 (fr) * 1998-09-30 2000-04-05 Bernd-Ulrich Wilk Procédé et dispositif pour la purification biologique des eaux usées
EP0990622A3 (fr) * 1998-09-30 2000-12-06 Bernd-Ulrich Wilk Procédé et dispositif pour la purification biologique des eaux usées
WO2001044123A1 (fr) * 1999-12-16 2001-06-21 Texaco Development Corporation Procede d'elimination de contaminants organiques et inorganiques des eaux residuaires au moyen de l'ultrafiltration et de l'osmose inverse
FR2812627A1 (fr) * 2000-08-07 2002-02-08 Abderrazack Djenani Procede d'epuration en continu d'eaux usees industrielles et dispositifs pour sa mise en oeuvre
WO2002012138A1 (fr) * 2000-08-07 2002-02-14 Abderrazack Djenani Installation et procede d'epuration des eaux usees ou residuaires notamment industrielles
ES2183743A1 (es) * 2001-08-17 2003-03-16 Johannes Adria Thomassen Instalacion de reciclaje de residuos agropecuarios y similares.
WO2003078035A1 (fr) * 2001-08-17 2003-09-25 Johannes Adrianus Thomassen Installation de recyclage de residus agricoles et similaires
WO2003086977A1 (fr) * 2002-04-09 2003-10-23 Institut National De La Recherche Scientifique Procedes et appareils de traitement d'engrais animal
US7156999B2 (en) 2002-04-09 2007-01-02 Institut National De La Recherche Scientifique Methods and apparatus for treating animal manure
CN1330582C (zh) * 2002-04-09 2007-08-08 国家科学研究所 用于处理动物粪便的方法和装置
CN100379687C (zh) * 2003-03-19 2008-04-09 亚瑟·斯蒂芬·海蕾 水净化系统
DK177918B1 (da) * 2008-05-07 2015-01-05 Purfil Aps Fremgangsmåde og apparat til behandling af gylle og ajle fra husdyr, samt biologisk belastet spildevand.
WO2010127442A1 (fr) * 2009-05-05 2010-11-11 Ross Thurston Système et procédé de traitement des eaux usées d'élevage
US9994471B2 (en) 2009-05-05 2018-06-12 Iwr Technologies Ltd. Livestock wastewater treatment system and method
AU2017203147B2 (en) * 2009-05-05 2019-04-11 Iwr Technologies Ltd. Livestock wastewater treatment system and method
ITVR20100127A1 (it) * 2010-06-23 2011-12-24 Alghisi Paolo Impianto e procedimento per l'estrazione di azoto ammoniacale da reflui liquidi, particolarmente per la riduzione della quantita' di refluo destinata allo spandimento
CN114315433A (zh) * 2020-10-09 2022-04-12 绿巨酶生技股份有限公司 厨余处理装置

Also Published As

Publication number Publication date
AU1571995A (en) 1995-08-21
BE1008005A6 (nl) 1995-12-05

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