WO2001019735A1 - Dispositif et procede de traitement de lisier - Google Patents
Dispositif et procede de traitement de lisier Download PDFInfo
- Publication number
- WO2001019735A1 WO2001019735A1 PCT/BE2000/000106 BE0000106W WO0119735A1 WO 2001019735 A1 WO2001019735 A1 WO 2001019735A1 BE 0000106 W BE0000106 W BE 0000106W WO 0119735 A1 WO0119735 A1 WO 0119735A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrodes
- slurry
- series
- magnesium alloy
- soluble
- Prior art date
Links
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4611—Fluid flow
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Definitions
- the present invention relates to a slurry treatment device comprising an electrolytic system with series of electrodes.
- the present invention aims in particular to treat different types of slurry to extract, on the one hand, a solid fraction, completely hygienized, that is to say free from any pathogenic bacteria, which can easily be spread on agricultural land and containing nutrients in proportion such that it corresponds to an ideal intake for plants and, on the other hand, a liquid fraction meeting the standards in force in terms of water purification.
- a slurry treatment device comprising an electrolytic system with series of electrodes is known from document WO 95/05347.
- soluble metal electrodes are used, preferably composed of iron or aluminum.
- a disadvantage of the known system is that it does not make it possible to sufficiently eliminate the formation of nitrates due to the significant presence of ammonia.
- the present invention aims to eliminate as much as possible the formation of nitrates.
- the electrodes is constituted by soluble electrodes of magnesium alloy.
- Such electrodes ensure that the ammonia, still present in the slurry, is precipitated in the form of a stable insoluble compound, namely phosphate-ammonia-magnesium (MgNH 4 PO 4 ) which is found in the sludge, along with other elements, such as copper, zinc and iron. These other elements provide the trace elements necessary for good plant growth.
- the series of electrodes consist of two series of different composition, a first series constituting the soluble electrodes made of magnesium alloy and a second series of electrodes composed in particular of iron. This makes it possible to obtain completely satisfactory results by limiting the costs of the electrodes, since the magnesium-based electrodes are more expensive.
- each series of electrodes is mounted between two partitions, the partitions being arranged to guide the slurry coming from one direction in the opposite direction. If part of the electrodes were to form the guide means between two series, these guide electrodes would wear out more quickly. Therefore, these partitions cause the electrodes to wear almost uniformly.
- the present invention also relates to a method for treating slurry, in which the slurry is subjected to an electrolytic treatment with electrodes, characterized in that the slurry is applied in soluble electrodes of magnesium alloy.
- lime is added to the slurry. This makes it possible to further perfect the elimination of the ammonia residues still present at this stage of purification. Details concerning the invention are described below with reference to the single figure, schematically illustrating a processing device according to a preferred embodiment of the invention.
- a first step the slurry is brought into a mechanical separator 1, in particular a centrifuge system, making it possible to eliminate any particle whose size is greater than 100 microns.
- a mechanical separator in particular a centrifuge system, making it possible to eliminate any particle whose size is greater than 100 microns.
- the liquid part is then stored in a tank 2, before being brought into the electrolysis tank 3 according to the invention.
- the reservoir is divided into several compartments, delimited by partitions 13 to 19.
- partitions 13 to 19 In the compartments there are series of electrodes 7 to 12. Each electrode is connected to one of the terminals 20 and 21 of an energy source. Adjacent electrodes are connected to different terminals.
- the electrodes of series 7, 9 and 11 are for example of the iron or aluminum type, while the electrodes of series 8, 10 and 12 contain magnesium.
- the iron or aluminum electrodes make it possible to transform the ammonia into its constituent elements in gaseous form, namely nitrogen and hydrogen, the nitrogen being released at the anode, the hydrogen at the cathode.
- the action of the electric current alone at these electrodes, as powerful as it is, does not allow these elements to be completely released.
- the ammonia still present is precipitated into phosphate-ammonia-magnesium (MgNH 4 P04), relatively insoluble under the pH conditions used, namely a pH above 8.
- the phosphate is present in slurry in organic and mineral form, both soluble in the presence of magnesium and ammonia.
- one or more compartments of the cell can be fitted with insoluble carbon or graphite electrodes or, more advantageously, titanium electrodes covered with a phosphate layer.
- mixed calcium and sodium obtained by soaking in a molten medium these said phosphates.
- the electrodes thus obtained have a high catalytic power and release nascent oxygen, very reactive at the anodic level. This oxygen makes it possible to release ions (CIO) " in the presence of chlorides present in great quantity in any type of slurry.
- an addition of organic, anionic or cationic type flocculant can be provided, in order to obtain an effective separation of the insolubilized compounds produced by the system.
- the electrical voltage applied is generally between 4V and 24V, depending on the system chosen, either in electrodes all connected to the current generator, or operating on the well-known world of bipolarity.
- a periodic reversal of the polarity can be used, this facilitating the detachment of the particles generally observed at the cathode level.
- the cell or the electrolysis tank 3 can also be fitted with ramps for injecting water at a pressure of 3 to 4 bars, which generally corresponds to the pressure of city water. Periodic flushing of the electrodes also allows for more efficient system performance.
- the water / sludge mixture obtained is discharged sequentially and is stored in a tank 4 for subsequent filtration.
- Another advantage of the process described consists essentially in reducing the COD / BOD 5 ratio so that it is between 3 and 5. Having therefore greatly reduced the COD value, in particular the so-called "hard" COD and having only very little reduction in BOD 5 , the application of a biological purification system can now be considered. It is no longer necessary to operate the system in aerobic and anaerobic phase, only the first oxidation phase is used.
- the device according to the invention can also be mounted so as to be moved from site to site. It can be supplemented by one or more ancillary equipment when the rejection standards are very strict, namely more precisely, one or more activated carbon filters, mixed resins, ultra or nanofiltration or any other equivalent system tending to reduce the organic pollutants.
- the solid parts coming from the mechanical separator 1 and from the tank 4 are mixed and treated in an appropriate device 6 and then arranged, for example, in the form of granules which can be spread on agricultural land.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002384409A CA2384409A1 (fr) | 1999-09-14 | 2000-09-14 | Dispositif et procede de traitement de lisier |
EP00960238A EP1212261A1 (fr) | 1999-09-14 | 2000-09-14 | Dispositif et procede de traitement de lisier |
AU72624/00A AU7262400A (en) | 1999-09-14 | 2000-09-14 | Device and method for treating liquid manure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99870187.4 | 1999-09-14 | ||
EP99870187A EP1084993A1 (fr) | 1999-09-14 | 1999-09-14 | Dispositif et procédé de traitement de lisier |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001019735A1 true WO2001019735A1 (fr) | 2001-03-22 |
Family
ID=8243890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BE2000/000106 WO2001019735A1 (fr) | 1999-09-14 | 2000-09-14 | Dispositif et procede de traitement de lisier |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP1084993A1 (fr) |
AU (1) | AU7262400A (fr) |
CA (1) | CA2384409A1 (fr) |
WO (1) | WO2001019735A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8101085B2 (en) | 2008-05-08 | 2012-01-24 | Agriculture And Agri-Food Canada | Process for treating animal husbandry effluent slurry by pre-treatment and electroflotation |
WO2012059465A1 (fr) | 2010-11-06 | 2012-05-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Réacteur pour récupérer des sels de phosphates contenus dans un liquide |
WO2012059464A1 (fr) | 2010-11-06 | 2012-05-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procédé de récupération des sels de phosphates contenus dans un liquide |
US9194049B2 (en) | 2012-07-23 | 2015-11-24 | E2Metrix Inc. | Method for simultaneous elimination of orthophosphate and ammonium using electrolytic process |
WO2017190240A1 (fr) | 2016-05-04 | 2017-11-09 | E2Metrix, Inc. | Alliage à base de magnésium et son utilisation dans la fabrication d'électrodes et la synthèse electrochimique de la struvite |
CN112897829A (zh) * | 2021-01-20 | 2021-06-04 | 江西天韵农业开发股份有限公司 | 一种弱电辅助的笼养蛋鸭液态粪污铁电极还原去除重金属设备及方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2302575B1 (es) * | 2005-06-13 | 2009-05-29 | Josep Tapias Parcerisas | Procedimiento y dispositivo para el tratamiento de purines. |
DE102005034138A1 (de) * | 2005-07-19 | 2007-01-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reaktor zur Gewinnung von Magnesiumammoniumphosphat und Verfahren zur Gewinnung von Magnesiumammoniumphosphat aus Gülle oder ammoniumhaltigen Abgasen |
CN104928706B (zh) * | 2015-06-30 | 2017-07-21 | 福建师范大学 | 一种基于海水电池技术将养殖废水中氮磷转化成磷酸铵镁的装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0100538A1 (fr) * | 1982-08-03 | 1984-02-15 | Heinrich Rickenbach | Installation pour le traitement électrolytique des eaux agressives |
EP0335280A1 (fr) * | 1988-03-30 | 1989-10-04 | Touraj Dipl.-Ing. Yawari | Procédé de purification d'eau usée ayant une forte concentration d'ions ammonium |
WO1997030941A1 (fr) * | 1996-02-22 | 1997-08-28 | Enpar Technologies Inc. | Traitement electrochimique d'eau contaminee par des composes azotes |
FR2751637A1 (fr) * | 1996-07-29 | 1998-01-30 | Pofimar | Cellule d'electrocoagulation pour le traitement d'effluents |
DE19717669A1 (de) * | 1997-04-26 | 1998-10-29 | Infan Ingenieurgesellschaft Fu | Verfahren zur Schwermetallentfrachtung von biogen-organischen Substraten |
-
1999
- 1999-09-14 EP EP99870187A patent/EP1084993A1/fr not_active Withdrawn
-
2000
- 2000-09-14 CA CA002384409A patent/CA2384409A1/fr not_active Abandoned
- 2000-09-14 AU AU72624/00A patent/AU7262400A/en not_active Abandoned
- 2000-09-14 WO PCT/BE2000/000106 patent/WO2001019735A1/fr not_active Application Discontinuation
- 2000-09-14 EP EP00960238A patent/EP1212261A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0100538A1 (fr) * | 1982-08-03 | 1984-02-15 | Heinrich Rickenbach | Installation pour le traitement électrolytique des eaux agressives |
EP0335280A1 (fr) * | 1988-03-30 | 1989-10-04 | Touraj Dipl.-Ing. Yawari | Procédé de purification d'eau usée ayant une forte concentration d'ions ammonium |
WO1997030941A1 (fr) * | 1996-02-22 | 1997-08-28 | Enpar Technologies Inc. | Traitement electrochimique d'eau contaminee par des composes azotes |
FR2751637A1 (fr) * | 1996-07-29 | 1998-01-30 | Pofimar | Cellule d'electrocoagulation pour le traitement d'effluents |
DE19717669A1 (de) * | 1997-04-26 | 1998-10-29 | Infan Ingenieurgesellschaft Fu | Verfahren zur Schwermetallentfrachtung von biogen-organischen Substraten |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8101085B2 (en) | 2008-05-08 | 2012-01-24 | Agriculture And Agri-Food Canada | Process for treating animal husbandry effluent slurry by pre-treatment and electroflotation |
WO2012059465A1 (fr) | 2010-11-06 | 2012-05-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Réacteur pour récupérer des sels de phosphates contenus dans un liquide |
WO2012059464A1 (fr) | 2010-11-06 | 2012-05-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procédé de récupération des sels de phosphates contenus dans un liquide |
US9194049B2 (en) | 2012-07-23 | 2015-11-24 | E2Metrix Inc. | Method for simultaneous elimination of orthophosphate and ammonium using electrolytic process |
WO2017190240A1 (fr) | 2016-05-04 | 2017-11-09 | E2Metrix, Inc. | Alliage à base de magnésium et son utilisation dans la fabrication d'électrodes et la synthèse electrochimique de la struvite |
CN112897829A (zh) * | 2021-01-20 | 2021-06-04 | 江西天韵农业开发股份有限公司 | 一种弱电辅助的笼养蛋鸭液态粪污铁电极还原去除重金属设备及方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1084993A1 (fr) | 2001-03-21 |
EP1212261A1 (fr) | 2002-06-12 |
AU7262400A (en) | 2001-04-17 |
CA2384409A1 (fr) | 2001-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2380797A1 (fr) | Methode de traitement du lisier | |
EP0817760B1 (fr) | Procede de stabilisation de boues | |
EP0433139A1 (fr) | Réacteur et procédé de nitrification biologique aérobie d'effluents et support de biomasse nitrifiante | |
EP2704998A2 (fr) | Procede et installation de traitement d'effluents | |
FR2729653A1 (fr) | Procede de dephosphatation ameliore des eaux residuaires | |
WO2001019735A1 (fr) | Dispositif et procede de traitement de lisier | |
FR2516071A1 (fr) | Procede par boues activees pour le traitement d'eaux residuaires | |
EP1284932B1 (fr) | Procede de traitement d'un effluent contenant notamment de l'azote et/ou du phosphore et/ou des matieres organiques et/ou des metaux lourds | |
EP2665686A2 (fr) | Procédé de traitement biologique d'eaux usées par biomasse granulaire aérobie | |
Proulx et al. | Traitement tertiaere d'un effluent domestique secondaire par culture intensive de la cyanobactérie Phormidium bohneri | |
EP0558421B1 (fr) | Procédé d'épuration d'excréments animaliers et son dispositif | |
EP2242592A2 (fr) | Procédé et équipement pour l'oxydation de matières organiques | |
JP2009171932A (ja) | 水生生物用固形化材料、その製造方法及びアミノ酸固形化材料の製造方法 | |
EP0634370A1 (fr) | Procédé de traitement d'effluents azotés avec des boues comme substrat | |
EP2909154B1 (fr) | Procede de traitement des digestats, engrais obtenu par ce procede et unite de traitement correspondante | |
EP4409054A1 (fr) | Procédé de production de dihydrogène gazeux et de sulfate d'ammonium à partir d'un effluent liquide aqueux, tel que la fraction liquide d'un lisier de porcins ou des urines d'êtres humains | |
FR2845983A1 (fr) | Procede d'inertage de boues | |
BE1016600A6 (fr) | Traitement d'effluents liquides et de boues pour margines d'huile d'olive. | |
EP1137602B1 (fr) | Procede de traitement des boues provenant des installations d'epuration biologique des eaux | |
CN105668712A (zh) | 富营养化水除磷填料及其方法 | |
FR3121687A1 (fr) | Procédé de production de dihydrogène gazeux à partir d’un effluent liquide aqueux, tel que la fraction liquide d’un lisier de porcins ou des urines d’êtres humains | |
WO2024141254A1 (fr) | Procédé et installation de traitement des eaux usées | |
FR3137377A1 (fr) | Systeme de traitement d’une source liquide comprenant de l’ammoniaque et methode associee | |
CA2472879A1 (fr) | Procede electrochimique de stabilisation et pre-conditionnement des boues d'epuration municipales et industrielles | |
FR2709304A1 (fr) | Procédé et installation de stabilisation et de concentration des boues par les oxydes d'azote. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ CZ DE DE DK DK DM DZ EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2384409 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10069980 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000960238 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2000960238 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000960238 Country of ref document: EP |