FR2752571A1 - PURIFICATION RECOVERY OF MANURE - Google Patents
PURIFICATION RECOVERY OF MANURE Download PDFInfo
- Publication number
- FR2752571A1 FR2752571A1 FR9610450A FR9610450A FR2752571A1 FR 2752571 A1 FR2752571 A1 FR 2752571A1 FR 9610450 A FR9610450 A FR 9610450A FR 9610450 A FR9610450 A FR 9610450A FR 2752571 A1 FR2752571 A1 FR 2752571A1
- Authority
- FR
- France
- Prior art keywords
- depollution
- polluting
- lignite
- additives
- mineral
- 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
- 210000003608 fece Anatomy 0.000 title claims abstract description 11
- 239000010871 livestock manure Substances 0.000 title claims abstract description 11
- 238000000746 purification Methods 0.000 title description 6
- 238000011084 recovery Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 10
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 6
- 239000004021 humic acid Substances 0.000 claims abstract description 6
- 238000011282 treatment Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000003337 fertilizer Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 239000003077 lignite Substances 0.000 claims 4
- 229910052729 chemical element Inorganic materials 0.000 claims 2
- 239000003344 environmental pollutant Substances 0.000 claims 2
- 239000010815 organic waste Substances 0.000 claims 2
- 230000010287 polarization Effects 0.000 claims 2
- 231100000719 pollutant Toxicity 0.000 claims 2
- 102000004190 Enzymes Human genes 0.000 claims 1
- 108090000790 Enzymes Proteins 0.000 claims 1
- 229910019142 PO4 Inorganic materials 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 239000008346 aqueous phase Substances 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 244000005700 microbiome Species 0.000 claims 1
- 235000021317 phosphate Nutrition 0.000 claims 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000002352 surface water Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000012429 reaction media Substances 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- WQVVYEYAFFYPIX-UHFFFAOYSA-N azane;magnesium Chemical compound N.[Mg] WQVVYEYAFFYPIX-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000009309 intensive farming Methods 0.000 description 1
- 235000014666 liquid concentrate Nutrition 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
- C05F11/02—Other organic fertilisers from peat, brown coal, and similar vegetable deposits
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
La présente invention met en oeuvre les méthodes et les produits qui permettent d'assurer avantageusement l'exportation des,excédents locaux de déchets d'élevage en séparant préalablement leurs composants en engrais organominéral pour les matières sèches et le reste en filtrat aqueux. The present invention implements the methods and the products which advantageously ensure the export of local surpluses of livestock waste by separating their components beforehand in organomineral fertilizer for dry matter and the rest in aqueous filtrate.
L'intensification et la concentration très importante des élevages intensifs en particulier en production porcine provoque souvent l'impossibilité pratique d'assurer l'épuration de ces effluents d'élevage par les seuls épandages raisonnés. Ainsi les spécialistes ont recensé un certain nombre de zones en excédent structurel, c'est à dire dans la limite géographique desquelles il n'y a plus compatibilité entre la production des lisiers et la capacité épuratoire des sols disponibles pour l'épandage. The intensification and the very high concentration of intensive farming, in particular in pig production often causes the practical impossibility of ensuring the purification of these farming effluents by the only reasoned spreading. Specialists have identified a number of areas with a structural surplus, that is to say within the geographical limit of which there is no longer any compatibility between the production of liquid manure and the purifying capacity of the soil available for spreading.
De nombreuses tentatives ont déjà été essayées dans ce but avec des résultats souvent aléatoires, donc peu industrialisables ou reproductibles ou bien encore d'intérêt économique limité voire nul. Numerous attempts have already been tried for this purpose with results which are often random, therefore not very industrializable or reproducible or even of limited or even zero economic interest.
Les réactions chimiques induites par le mélange des matières premières brutes nécessaires à ces transformations en conditions naturelles sont très longues et souvent de l'ordre de 20 à 50 jours à des températures ambiantes tempérées comprises entre 10 et 20"C environ. The chemical reactions induced by the mixture of raw raw materials necessary for these transformations in natural conditions are very long and often of the order of 20 to 50 days at temperate ambient temperatures of between 10 and 20 "C approximately.
De ce fait, s'inspirant des travaux anciens utilisés dans la fabrication des premiers engrais chimiques composés il y a quelques dizaines d'années, la même démarche a été reprise avec des produits chimiques industriels. As a result, drawing on ancient work used in the manufacture of the first chemical fertilizers composed a few decades ago, the same approach was taken with industrial chemicals.
C'est ainsi que l'on a étudié cette possibilité de dépollution des lisiers avec la mise en oeuvre d'acide phosphorique puis la neutralisation du mélange avec de la chaux vive ou un carbonate de calcium ou une magnésie broyé. This is how we studied this possibility of depolluting manure with the use of phosphoric acid and then neutralizing the mixture with quicklime or calcium carbonate or ground magnesia.
Cette technique est effectivement efficace dans l'épuration des lisiers, puisqu'elle permet la fixation partielle de l'azote ammoniacal des lisiers sous forme insoluble dans l'eau. Mais cette méthode nécessite des temps de contact encore trop longs compris entre 4 et 9 heures pour garantir l'insolubilisation d'environ 80% de l'azote libre.This technique is effectively effective in the treatment of liquid manure, since it allows the partial fixation of ammoniacal nitrogen from liquid manure in a form insoluble in water. However, this method requires still too long contact times of between 4 and 9 hours to guarantee the insolubilization of approximately 80% of the free nitrogen.
Dans la présente invention on a d'abord recherché des produits chimiques ou naturels qui, mélangés avec les lisiers sont pour l'essentiel choisis en fonction de leur double action
- épuration des lisiers à travers la combinaison avec des composants organiques ou minéraux qui en provoquent les effets polluants considérables;
- fertilisante des sols sur lesquels ils devront être épandus pour réintégrer de façon harmonieuse le cycle épuratoire du milieu naturel et compenser ainsi partiellement le coût additionnel de la dépollution du lisier.In the present invention, we first sought chemical or natural products which, mixed with slurry are essentially chosen according to their double action.
- purification of slurry through the combination with organic or mineral components which cause considerable polluting effects;
- fertilizing the soils on which they must be spread to harmoniously reintegrate the purification cycle of the natural environment and thus partially compensate for the additional cost of the decontamination of slurry.
Pour garantir ces résultats on a recherché la fixation de l'azote ammoniacal présent dans les lisiers sous forme d'humate alcalin ammoniaco-magnésien en substituant dans la cinétique de la réaction décrite plus haut tout ou partie de l'acide phosphorique nécessaire par de l'acide humique préparé dans cette intention et en privilégiant la magnésie pour neutraliser les milieux de réaction. To guarantee these results, we sought to fix the ammoniacal nitrogen present in the slurry in the form of an alkaline ammonia-magnesium humate by substituting in the kinetics of the reaction described above all or part of the phosphoric acid required by l humic acid prepared for this purpose and favoring magnesia to neutralize the reaction media.
L'obtention de l'acide humique nécessaire à cette réaction peut se faire directement par l'introduction de la matière première brute, habituellement des lignites naturelles, dans le réacteur ou sous forme de produit industriel liquide plus ou moins purifié qui permet en sus un dosage plus précis que la matière brute ci-dessus. Obtaining the humic acid necessary for this reaction can be carried out directly by the introduction of the raw raw material, usually natural lignites, into the reactor or in the form of a more or less purified liquid industrial product which also allows more precise dosage than the raw material above.
L'extraction des humates ammoniaco-magnésien ainsi obtenus par filtration est largement facilitée par leur très faible solubilité dans l'eau. The extraction of ammonia-magnesium humates thus obtained by filtration is greatly facilitated by their very low solubility in water.
Ainsi, par cette nouvelle méthode, on concentre la presque totalité des composants polluants dans des complexes humiques destinés par des traitements complémentaires à devenir des engrais organo-minéraux d'une part. D'autre part, la plus grosse partie de l'eau initiale du lisier est devenue un filtrat dont l'épuration finale par des techniques membranaires devient économiquement possible. On peut ensuite envisager le rejet des perméats ainsi obtenus dans le milieu naturel. Ces dernières opérations avec utilisation de membranes produisent également des concentrats liquides en volume très limité qui sont également utilisables en fertilisation agricole sous cette forme. Thus, by this new method, almost all of the polluting components are concentrated in humic complexes intended by complementary treatments to become organo-mineral fertilizers on the one hand. On the other hand, most of the initial slurry water has become a filtrate, the final purification of which by membrane techniques becomes economically possible. We can then consider the rejection of the permeates thus obtained in the natural environment. These latter operations with the use of membranes also produce liquid concentrates in very limited volume which can also be used in agricultural fertilization in this form.
La chloration ou toute autre méthode de potabilisation des eaux peut être utilisée avec efficacité et par sécurité sur les éluats avant leur rejet tout comme une oxygénation mécanique afin de les rendre biologiquement plus compatibles avec le milieu récepteur naturel. Chlorination or any other method of drinking water can be used efficiently and for safety on eluates before their discharge as well as mechanical oxygenation in order to make them biologically more compatible with the natural receiving environment.
La présente invention comprend également l'adaptation des améliorations techniques qui favorisent le déroulement régulier et la rapidité de ces réactions, et en particulier
- la création de champs électriques par une électrolyse partielle du milieu aqueux, ce qui provoque d'une part la migration des particules colloïdales, accroît la probabilité de leur rencontre, donc favorise à la fois la vitesse et l'intensité des réactions entres les particules, et par là même oriente favorablement la floculation. D'autre part, l'émission d'électrons favorisant les réactions limite leur durée à quelques minutes;
- le nettoyage des électrodes en continu pour ne pas altérer leur fonctionnement et donc voir, dans les suspensions chargées de matières organiques, les actions utiles de ces électrodes diminuer rapidement
- la géométrie des réacteurs adaptée à la cinétique des liaisons physico-chimiques recherchées en rapprochant au minimum possible, pour des raisons de sécurité, les distances entre les électrodes ramenant la durée des réactions entre 1 et 5 minutes;
- la mise en contact des divers composants des lisiers et des adjuvants chimiques retenus dans ce procédé favorise un phénomène de réaction exothermique naturelle amplifiée par l'isolation thermique des réacteurs qui limite les pertes par rayonnement. On peut ainsi obtenir une élévation significative de la température du mélange ainsi portée entre 50 et 70"C suivant les concentrations en extrait sec des mélanges.The present invention also includes the adaptation of technical improvements which favor the regular progress and the speed of these reactions, and in particular
- the creation of electric fields by a partial electrolysis of the aqueous medium, which causes on the one hand the migration of the colloidal particles, increases the probability of their meeting, therefore favors both the speed and the intensity of the reactions between the particles , and thereby favorably directs the flocculation. On the other hand, the emission of electrons favoring the reactions limits their duration to a few minutes;
- continuous cleaning of the electrodes so as not to alter their operation and therefore see, in the suspensions loaded with organic matter, the useful actions of these electrodes decrease rapidly
- the geometry of the reactors adapted to the kinetics of the physicochemical bonds sought by bringing as close as possible, for safety reasons, the distances between the electrodes reducing the duration of the reactions between 1 and 5 minutes;
- the contacting of the various components of the slurries and the chemical additives retained in this process promotes a phenomenon of natural exothermic reaction amplified by the thermal insulation of the reactors which limits the losses by radiation. It is thus possible to obtain a significant rise in the temperature of the mixture thus brought to between 50 and 70 ° C. depending on the dry extract concentrations of the mixtures.
- la présente invention, par l'allégement, la compacité et le nombre réduit de composants nécessaires au déroulement harmonieux des traitements physico-chimiques décrits cidessus avec mise en oeuvre des matières premières citées, limite très largement l'encombrement et la masse des dispositifs à mettre en oeuvre et de ce fait permet de les rendre facilement déplaçables. - The present invention, by the lightening, the compactness and the reduced number of components necessary for the harmonious course of the physicochemical treatments described above with the use of the raw materials mentioned, very largely limits the size and the mass of the devices implement and therefore makes them easily movable.
Ainsi, l'ensemble des dispositifs nécessaires à l'épuration des lisiers suivant cette méthode peut être utilement disposé sur une remorque ou plate forme, agricole ou routière, et répondre ainsi plus spécifiquement aux dispositions législatives qui recommandent le traitement sur place des sources de pollution pour éviter les risques sanitaires qu'entraînerait leur dispersion. Thus, all the devices necessary for the purification of slurry according to this method can be usefully placed on a trailer or platform, agricultural or road, and thus respond more specifically to the legislative provisions which recommend the on-site treatment of pollution sources to avoid the health risks that their dispersion would entail.
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9610450A FR2752571B1 (en) | 1996-08-26 | 1996-08-26 | PURIFICATION RECOVERY OF MANURE |
| PCT/FR1997/001524 WO1998008781A1 (en) | 1996-08-26 | 1997-08-25 | Upgrading purification of liquid manure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9610450A FR2752571B1 (en) | 1996-08-26 | 1996-08-26 | PURIFICATION RECOVERY OF MANURE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2752571A1 true FR2752571A1 (en) | 1998-02-27 |
| FR2752571B1 FR2752571B1 (en) | 1998-12-11 |
Family
ID=9495208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9610450A Expired - Fee Related FR2752571B1 (en) | 1996-08-26 | 1996-08-26 | PURIFICATION RECOVERY OF MANURE |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2752571B1 (en) |
| WO (1) | WO1998008781A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198651A (en) * | 2015-11-05 | 2015-12-30 | 陆良县大自在生物肥业有限公司 | Liquid organic fertilizer prepared from silkworm excrement and production method of liquid organic fertilizer |
| US10472294B2 (en) * | 2016-05-10 | 2019-11-12 | Actagro, Llc | Semi-humic composition and methods of use thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1551703A (en) * | 1967-10-20 | 1968-12-27 | ||
| JPS63235391A (en) * | 1987-03-25 | 1988-09-30 | Japan Metals & Chem Co Ltd | Ph adjustor for soil |
| EP0314159A1 (en) * | 1987-10-29 | 1989-05-03 | KOVINOTEHNA CELJE n.sol.o. TOZD Inzeiring n.sub.o. | Process for treating animal manure, a high-grade fertilizer according to this process, and its application |
| EP0449184A1 (en) * | 1990-03-28 | 1991-10-02 | Rheinbraun Aktiengesellschaft | Method for treatment of liquid manure |
| SU1713980A1 (en) * | 1989-12-19 | 1992-02-23 | Институт Органического Синтеза И Углехимии Ан Казсср | Method and electrolyzer for producing humic acids from hard-to-oxidize brown coals |
| JPH07206563A (en) * | 1993-12-30 | 1995-08-08 | Matsuo Seitai Butsuri Kenkyusho:Kk | Humic acid liquid |
-
1996
- 1996-08-26 FR FR9610450A patent/FR2752571B1/en not_active Expired - Fee Related
-
1997
- 1997-08-25 WO PCT/FR1997/001524 patent/WO1998008781A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1551703A (en) * | 1967-10-20 | 1968-12-27 | ||
| JPS63235391A (en) * | 1987-03-25 | 1988-09-30 | Japan Metals & Chem Co Ltd | Ph adjustor for soil |
| EP0314159A1 (en) * | 1987-10-29 | 1989-05-03 | KOVINOTEHNA CELJE n.sol.o. TOZD Inzeiring n.sub.o. | Process for treating animal manure, a high-grade fertilizer according to this process, and its application |
| SU1713980A1 (en) * | 1989-12-19 | 1992-02-23 | Институт Органического Синтеза И Углехимии Ан Казсср | Method and electrolyzer for producing humic acids from hard-to-oxidize brown coals |
| EP0449184A1 (en) * | 1990-03-28 | 1991-10-02 | Rheinbraun Aktiengesellschaft | Method for treatment of liquid manure |
| JPH07206563A (en) * | 1993-12-30 | 1995-08-08 | Matsuo Seitai Butsuri Kenkyusho:Kk | Humic acid liquid |
Non-Patent Citations (4)
| Title |
|---|
| DATABASE WPI Section Ch Week 9302, Derwent World Patents Index; Class A11, AN 93-016411, XP002040184 * |
| DATABASE WPI Section Ch Week 9540, Derwent World Patents Index; Class C04, AN 95-308923, XP002040186 * |
| DATABASE WPI Section Ch Week 9701, Derwent World Patents Index; Class H09, AN 97-010506, XP002040185 * |
| PATENT ABSTRACTS OF JAPAN vol. 013, no. 029 (C - 562) 23 January 1989 (1989-01-23) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198651A (en) * | 2015-11-05 | 2015-12-30 | 陆良县大自在生物肥业有限公司 | Liquid organic fertilizer prepared from silkworm excrement and production method of liquid organic fertilizer |
| US10472294B2 (en) * | 2016-05-10 | 2019-11-12 | Actagro, Llc | Semi-humic composition and methods of use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2752571B1 (en) | 1998-12-11 |
| WO1998008781A1 (en) | 1998-03-05 |
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