FR2751637A1 - Detoxification of effluents by electro-coagulation - Google Patents
Detoxification of effluents by electro-coagulation Download PDFInfo
- Publication number
- FR2751637A1 FR2751637A1 FR9609510A FR9609510A FR2751637A1 FR 2751637 A1 FR2751637 A1 FR 2751637A1 FR 9609510 A FR9609510 A FR 9609510A FR 9609510 A FR9609510 A FR 9609510A FR 2751637 A1 FR2751637 A1 FR 2751637A1
- Authority
- FR
- France
- Prior art keywords
- electrodes
- anode
- cathode
- separator
- effluents
- 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.)
- Granted
Links
- 238000009297 electrocoagulation Methods 0.000 title claims abstract description 11
- 238000001784 detoxification Methods 0.000 title description 3
- 238000005192 partition Methods 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
-
- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46128—Bipolar 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
- C02F1/46104—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
- 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
- C02F2001/46152—Electrodes characterised by the shape or form
- C02F2001/46157—Perforated or foraminous electrodes
-
- 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
- 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
- C02F2201/4616—Power supply
- C02F2201/4617—DC only
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)
Abstract
Description
L'invention concerne une cellule d'électrocoagulation destinée au traitement électrolytique des effluents et en particulier leur détoxication. The invention relates to an electrocoagulation cell intended for the electrolytic treatment of effluents and in particular their detoxification.
La détoxication des effluents est généralement effectuée par des techniques physico-chimiques et/ou chimiques ou encore par la technique de ltélectrolyse. The detoxification of effluents is generally carried out by physico-chemical and / or chemical techniques or even by the electrolysis technique.
Une cellule d'électrocoagulation comporte généralement une pluralité d'électrodes sous forme de plaques, chaque électrode étant reliée à une source de courant. Certaines de ces électrodes peuvent en outre être bipolaires, chaque face ayant une polarité définie qui est opposée à celle de l'autre face. An electrocoagulation cell generally comprises a plurality of electrodes in the form of plates, each electrode being connected to a current source. Some of these electrodes can also be bipolar, each face having a defined polarity which is opposite to that of the other face.
Un certain nombre d'électrodes bipolaires ou non, dites intermédiaires, sont généralement disposées entre deux électrodes classiques respectivement anode et cathode. A number of bipolar or non-bipolar, so-called intermediate, electrodes are generally placed between two conventional electrodes, anode and cathode respectively.
I1 est connu que la dissolution des électrodes suit la loi de
Faraday et que ladite dissolution est proportionnelle à l'intensité du courant utilisé.It is known that the dissolution of the electrodes follows the law of
Faraday and that said dissolution is proportional to the intensity of the current used.
Cette dissolution présente évidemment l'inconvénient de former des boues résiduelles et il est donc avantageux pour une même puissance de réduire l'intensité en augmentant le voltage. This dissolution obviously has the drawback of forming residual sludge and it is therefore advantageous for the same power to reduce the intensity by increasing the voltage.
A cet effet l'inventeur a imaginé une cellule d'électrocoagulation tout à fait originale qui est remarquable en ce qu'entre l'anode et la cathode est disposée au moins une électrode intermédiaire non reliée à une source de courant. For this purpose the inventor has imagined an entirely original electrocoagulation cell which is remarkable in that between the anode and the cathode is arranged at least one intermediate electrode not connected to a current source.
I1 est tout à fait surprenant que la ou les électrodes intermédiaires puissent être ainsi non reliées tout en faisant leur rôle d'électrode. It is quite surprising that the intermediate electrode or electrodes can thus be unconnected while performing their role of electrode.
Une telle disposition permet de faire fonctionner la cellule à haut voltage et faible ampérage de façon à procurer les avantages mentionnés ci-avant. Such an arrangement makes it possible to operate the high voltage and low amperage cell so as to provide the advantages mentioned above.
Selon un mode de réalisation, la cellule comporte plusieurs compartiments à fond incliné et disposés en série, pourvus chacun d'une anode, d'une cathode et d'au moins une électrode intermédiaire, les électrodes étant disposées perpendiculairement au sens d'écoulement de l'ef fluent à traiter tandis que deux compartiments contigus sont séparés entre eux par un séparateur de débordement. According to one embodiment, the cell comprises several compartments with inclined bottoms and arranged in series, each provided with an anode, a cathode and at least one intermediate electrode, the electrodes being arranged perpendicular to the direction of flow of the effluent to be treated while two contiguous compartments are separated from each other by an overflow separator.
Dans ce cas par exemple le séparateur de débordement comporte deux cloisons parallèles, la cloison aval étant disposée à distance du fond de la cellule afin de diriger l'ef fluent entre les cloisons de haut en bas après débordement au-dessus de la cloison amont du séparateur puis de bas en haut dans chaque compartiment. In this case, for example, the overflow separator comprises two parallel partitions, the downstream partition being disposed at a distance from the bottom of the cell in order to direct the effluent between the partitions from top to bottom after overflow above the upstream partition of the separator then from bottom to top in each compartment.
Selon un mode de réalisation plus particulier au moins certaines des électrodes intermédiaires sont constituées chacune par un panier à parois ajourées remplis de morceaux métalliques. According to a more particular embodiment, at least some of the intermediate electrodes each consist of a basket with perforated walls filled with metal pieces.
Dans ce cas par exemple, l'une au moins des parois d'au moins l'une des électrodes sous forme de panier est pourvue d'un masque destiné à régler la proportion oxygène-hydrogène. In this case, for example, at least one of the walls of at least one of the basket-shaped electrodes is provided with a mask intended to regulate the oxygen-hydrogen proportion.
L'invention sera bien sûr comprise à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels
- la figure 1 montre en perspective et schématiquement une cellule selon l'invention,
- la figure 2 est une vue schématique du dessus d'une cellule du type de celle de la figure 1,
- la figure 3 est une coupe transversale d'une autre cellule selon l'invention,
- la figure 4 représente un mode de réalisation particulier d'électrode intermédiaire selon l'invention.The invention will of course be understood on reading the description which follows and which refers to the accompanying drawings in which
FIG. 1 shows in perspective and schematically a cell according to the invention,
FIG. 2 is a schematic view from above of a cell of the type of that of FIG. 1,
FIG. 3 is a cross section of another cell according to the invention,
- Figure 4 shows a particular embodiment of the intermediate electrode according to the invention.
Les dessins montrent une cellule d'électrocoagulation qui comporte un boîtier 1 dans lequel sont montées une pluralité d'électrodes, disposées perpendiculairement au sens de l'écoulement des effluents à traiter, et dont il sera question plus en détail ci-après. The drawings show an electrocoagulation cell which comprises a housing 1 in which are mounted a plurality of electrodes, arranged perpendicular to the direction of flow of the effluents to be treated, and which will be discussed in more detail below.
Les modes de réalisation des figures respectivement 1, 2 et 3 sont très voisins et en conséquence ils portent les mêmes références. The embodiments of Figures 1, 2 and 3 respectively are very similar and therefore bear the same references.
En fait les cellules représentées comportent plusieurs compartiments d'électrodes, par exemple deux compartiments 2a-2b sur les figures 1 et 2, et six compartiments 2a-2f sur la figure 3. Une cellule pourrait bien entendu ne comporter qu'un seul compartiment. In fact, the cells shown have several compartments of electrodes, for example two compartments 2a-2b in FIGS. 1 and 2, and six compartments 2a-2f in FIG. 3. A cell could of course have only one compartment.
Le fond du bottier 1 présente un fond incliné 3 (figures 1 et 3), tandis que les effluents arrivent dans le bottier 1 du côté où ce dernier présente la partie la plus élevée du fond incliné 3 comme le montrent les flèches F sur les figures 1 et 3, les effluents étant évacués en partie basse et plus précisément en 4 (figures 1 à 3). The bottom of the shell 1 has an inclined bottom 3 (Figures 1 and 3), while the effluents arrive in the shell 1 on the side where the latter has the highest part of the inclined bottom 3 as shown by the arrows F in the figures 1 and 3, the effluents being discharged in the lower part and more precisely in 4 (Figures 1 to 3).
Deux compartiments contigus sont séparés entre eux par un séparateur de débordement 5b (figure 1) ou 5b-5f (figure 3) , un séparateur 5a étant en outre prévu en amont du premier compartiment 2a, pour canaliser l'arrivée des effluents voire éventuellement aussi en aval comme le séparateur 5c sur la figure 2. La dernière cloison aval est en outre suivie dans la zone d'évacuation des effluents d'une chambre 6. Two contiguous compartments are separated from each other by an overflow separator 5b (FIG. 1) or 5b-5f (FIG. 3), a separator 5a being further provided upstream of the first compartment 2a, to channel the arrival of effluents or even possibly downstream like the separator 5c in FIG. 2. The last downstream partition is further followed in the effluent discharge zone of a chamber 6.
Comme le montrent bien les dessins et en particulier la figure 3, chaque séparateur est formé de deux cloisons parrallèles, la cloison aval étant aménagée à distance du fond 3 de la cellule en étant éventuellement mais non nécéssairement plus haute que la cloison amont de telle sorte que l'effluent circule de la manière montrée par les flèches arrondies de ladite figure 3, c'est à dire de haut en bas entre les deux cloisons de chaque séparateur après débordement au dessus de la cloison aval, et de bas en haut dans chaque compartiment entre deux séparateurs. As clearly shown in the drawings and in particular in FIG. 3, each separator is formed by two parallel partitions, the downstream partition being arranged at a distance from the bottom 3 of the cell, being possibly but not necessarily higher than the upstream partition so that the effluent circulates in the manner shown by the rounded arrows of said FIG. 3, that is to say from top to bottom between the two partitions of each separator after overflowing above the downstream partition, and from bottom to top in each compartment between two dividers.
Dans chaque compartiment 2a-2f,sont donc disposées des électrodes à savoir, une anode 7 (ici en amont) et une cathode 8 (ici en aval) référencées uniquement dans le premier compartiment 2a des figures 1 à 3. Mais il est clair que chaque compartiment comporte une anode et une cathode toutes reliées à une source de courant continu telle que schématisé par les câbles 9 (+) et 10 (-), des figures 2 et 3. In each compartment 2a-2f, there are therefore arranged electrodes, namely, an anode 7 (here upstream) and a cathode 8 (here downstream) referenced only in the first compartment 2a of Figures 1 to 3. But it is clear that each compartment has an anode and a cathode all connected to a direct current source as shown diagrammatically by the cables 9 (+) and 10 (-), in FIGS. 2 and 3.
Entre chaque couple anode-cathode sont prévus des électrodes intermédiaires 11 non reliées à la source de courant, ces électrodes étant malgré tout bipolaires, (une polarité par face). Intermediate electrodes 11 are not provided between each anode-cathode pair 11 not connected to the current source, these electrodes nevertheless being bipolar (one polarity per side).
On comprend aisément comme déjà dit que l'effluent à traiter circule selon un circuit en zig-zag dans tous les compartiments, pour être ainsi traité par les électrodes, un circuit d'évacuation 12 des résidus étant en outre prévu. It is easily understood as already said that the effluent to be treated circulates in a zig-zag circuit in all the compartments, so as to be thus treated by the electrodes, a circuit 12 for evacuating residues being further provided.
Les électrodes solubles ou non se présentent par exemple sous forme de plaques. The soluble or non-soluble electrodes are for example in the form of plates.
Toutefois l'invention propose une électrode intermédiaire tout à fait originale référencée 11' sur la figure 4. However, the invention proposes an entirely original intermediate electrode referenced 11 ′ in FIG. 4.
Une telle électrode 11' se présente sous la forme d'un panier, par exemple en matériau non conducteur, qui est pourvu de deux faces opposées et ajourées 13a, 13b, formées ici de grillages représentés de manière incomplète pour plus de clarté. Such an electrode 11 ′ is in the form of a basket, for example of non-conductive material, which is provided with two opposite and perforated faces 13a, 13b, formed here of gratings shown in an incomplete manner for greater clarity.
Dans ledit panier et entre les faces 13a, 13b sont disposés des morceaux de métal, partiellement représentés et schématisés en 14, du type copeaux de fer ou d'aluminium par exemple, offrant ainsi une grande surface active. In said basket and between the faces 13a, 13b are arranged pieces of metal, partially shown and shown diagrammatically at 14, of the iron or aluminum shavings type for example, thus offering a large active surface.
En vue par exemple de produire plus ou moins d'oxygène ou d'hydrogène, la face cathodique (ou anodique) 13a, 13b peut être munie d'un masque aménagé pour occulter au moins une partie de la surface de ladite face, par exemple la partie inférieure jusqu'à la ligne en trait mixte 15 sur la figure 4. In order, for example, to produce more or less oxygen or hydrogen, the cathode (or anode) face 13a, 13b can be provided with a mask arranged to obscure at least part of the surface of said face, for example the lower part to the dashed line 15 in FIG. 4.
D'autres aménagements de la cellule sont évidement prévus ou imaginables sans sortir du cadre de l'invention comme un circuit d'arrivée d'air pour l'évacuation des boues etc. Other arrangements of the cell are obviously provided or imaginable without departing from the scope of the invention such as an air intake circuit for the evacuation of sludge etc.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9609510A FR2751637B1 (en) | 1996-07-29 | 1996-07-29 | ELECTROCOAGULATION CELL FOR THE TREATMENT OF EFFLUENTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9609510A FR2751637B1 (en) | 1996-07-29 | 1996-07-29 | ELECTROCOAGULATION CELL FOR THE TREATMENT OF EFFLUENTS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2751637A1 true FR2751637A1 (en) | 1998-01-30 |
| FR2751637B1 FR2751637B1 (en) | 1998-10-02 |
Family
ID=9494578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9609510A Expired - Fee Related FR2751637B1 (en) | 1996-07-29 | 1996-07-29 | ELECTROCOAGULATION CELL FOR THE TREATMENT OF EFFLUENTS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2751637B1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2780962A1 (en) * | 1998-07-10 | 2000-01-14 | Corelec | ELECTROLYTIC TANK DEVICE FOR THE TREATMENT OF WASTEWATER BY ELECTRO-FLOCCULATION |
| EP1084993A1 (en) * | 1999-09-14 | 2001-03-21 | Eco Flanders S.A. | Device for processing manure |
| WO2004050562A1 (en) * | 2002-11-29 | 2004-06-17 | Les Technologies Elcotech Inc. | Apparatus and method for wastewater treatment by means of electroflotation and/or electrocoagulation |
| EP2383230A1 (en) * | 2010-04-28 | 2011-11-02 | Wolfgang Wesner | Device and method for phosphation release by means of anodal metal solution |
| EP2583948A1 (en) | 2011-10-18 | 2013-04-24 | Université de Limoges | Process and installation for the treatment of effluents by in situ generation of coagulant |
| WO2015137793A1 (en) | 2014-03-11 | 2015-09-17 | Hassan 1 Er Settat Universite | Recycling cactus cladodes as a source of bio-polyelectrolyte used for treating water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR703253A (en) * | 1929-10-02 | 1931-04-28 | Electric liquid purification process | |
| FR2134035A1 (en) * | 1971-04-21 | 1972-12-01 | Mtf Fluent Ltd | Sewage treatment plant - using electrolysis to reduce oxygen demand |
| FR2373331A1 (en) * | 1976-12-13 | 1978-07-07 | Electricite De France | Electrode to coagulate impurities in industrial effluents - has conductor lead embedded in scrap metal fragments packed in plastic basket |
| US5326439A (en) * | 1993-02-24 | 1994-07-05 | Andco Environmental Processes, Inc. | In-situ chromate reduction and heavy metal immobilization |
| US5372690A (en) * | 1992-05-13 | 1994-12-13 | Recra Environmental, Inc. | Apparatus for removing contaminants from an aqueous medium |
-
1996
- 1996-07-29 FR FR9609510A patent/FR2751637B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR703253A (en) * | 1929-10-02 | 1931-04-28 | Electric liquid purification process | |
| FR2134035A1 (en) * | 1971-04-21 | 1972-12-01 | Mtf Fluent Ltd | Sewage treatment plant - using electrolysis to reduce oxygen demand |
| FR2373331A1 (en) * | 1976-12-13 | 1978-07-07 | Electricite De France | Electrode to coagulate impurities in industrial effluents - has conductor lead embedded in scrap metal fragments packed in plastic basket |
| US5372690A (en) * | 1992-05-13 | 1994-12-13 | Recra Environmental, Inc. | Apparatus for removing contaminants from an aqueous medium |
| US5326439A (en) * | 1993-02-24 | 1994-07-05 | Andco Environmental Processes, Inc. | In-situ chromate reduction and heavy metal immobilization |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2780962A1 (en) * | 1998-07-10 | 2000-01-14 | Corelec | ELECTROLYTIC TANK DEVICE FOR THE TREATMENT OF WASTEWATER BY ELECTRO-FLOCCULATION |
| EP1084993A1 (en) * | 1999-09-14 | 2001-03-21 | Eco Flanders S.A. | Device for processing manure |
| WO2001019735A1 (en) * | 1999-09-14 | 2001-03-22 | Eco Flanders S.A. | Device and method for treating liquid manure |
| WO2004050562A1 (en) * | 2002-11-29 | 2004-06-17 | Les Technologies Elcotech Inc. | Apparatus and method for wastewater treatment by means of electroflotation and/or electrocoagulation |
| EP2383230A1 (en) * | 2010-04-28 | 2011-11-02 | Wolfgang Wesner | Device and method for phosphation release by means of anodal metal solution |
| EP2583948A1 (en) | 2011-10-18 | 2013-04-24 | Université de Limoges | Process and installation for the treatment of effluents by in situ generation of coagulant |
| WO2015137793A1 (en) | 2014-03-11 | 2015-09-17 | Hassan 1 Er Settat Universite | Recycling cactus cladodes as a source of bio-polyelectrolyte used for treating water |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2751637B1 (en) | 1998-10-02 |
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