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WO1996006060A1 - Procede de traitement, valorisation et transformation en boulettes de composes organiques et inorganiques sous forme solide et liquide, en particulier de biomasse et de boues biogenes telles que des boues d'epuration - Google Patents

Procede de traitement, valorisation et transformation en boulettes de composes organiques et inorganiques sous forme solide et liquide, en particulier de biomasse et de boues biogenes telles que des boues d'epuration Download PDF

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Publication number
WO1996006060A1
WO1996006060A1 PCT/EP1995/003336 EP9503336W WO9606060A1 WO 1996006060 A1 WO1996006060 A1 WO 1996006060A1 EP 9503336 W EP9503336 W EP 9503336W WO 9606060 A1 WO9606060 A1 WO 9606060A1
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WO
WIPO (PCT)
Prior art keywords
sewage sludge
water
lime
powder
product
Prior art date
Application number
PCT/EP1995/003336
Other languages
German (de)
English (en)
Inventor
Dieter MÄHL
Original Assignee
Maehl Dieter
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 Maehl Dieter filed Critical Maehl Dieter
Priority to AU34722/95A priority Critical patent/AU3472295A/en
Publication of WO1996006060A1 publication Critical patent/WO1996006060A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G1/00—Mixtures of fertilisers belonging individually to different subclasses of C05
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
    • 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

Definitions

  • Preparation process Recovery and pelleting or g ani ⁇ and inorganic compounds in solid and liquid form in particular of biomass and biogenic slurries, more particularly of sewage sludge.
  • the invention represents to a large extent biological pretreatment of the sludges of the most varied origin and composition. From the manure to the pulp, all organic and inorganic compounds are to be seen as co-glomerates which do not differ greatly from one another.
  • the invention therefore relates to a process for the treatment of biomass and biogenic sludge, in particular sewage sludge, into solid fertilizers and soil conditioners.
  • the process can be applied to all types of sewage sludge which occur in sewage treatment plants and whose disposal in landfills or their agricultural or forestry use poses considerable problems.
  • Sludges from wastewater treatment plants usually fall with a water content of 90 to 95% by weight! zo that usually a further treatment to increase the dry matter content is carried out.
  • energy-intensive chemical, mechanical and thermal dewatering processes are used, whereby the extent to which dewatering must be carried out depends on the disposal options for the solid.
  • the landfill of pretreated sewage sludge is the preferred method of disposal.
  • the landfill is overloaded by the large amount of sludge and the formation of foul gases, leachate, odors and the accumulation of pathogenic germs make the landfill a source of potential environmental hazard Landfilling or incineration of organic raw materials cannot and should not continue for political reasons.
  • the European arable land lacks carbon and Micronutrient compounds; 200 years of agriculture calls for a continuation and addition of Liebig's teachings.
  • the anionic and cationic minerals including N-nitrogen are largely known for their effect in crop production.
  • the effects of carbon and micronutrients have to be investigated more comprehensively, while biogenic substances without toxic residual compounds have hardly been investigated for growth optimization at all.
  • Sewage sludge and lime-treated sewage sludge are therefore applied to agricultural land in many cases in accordance with the strict legal regulations.
  • this spreading is severely restricted due to the increasingly strict waste disposal, water budget and emission protection laws as well as the possible occurrence of unpleasant smells, pathogenic germs, worm eggs etc.
  • Sludge composting is, however, complex in terms of process technology and energy, structural materials are required and the compost product is often not odorless and not harmless in terms of disease.
  • the sewage sludge is often also concentrated by mechanical or thermal dewatering to a water content of less than 70% by weight. This process is very energy-intensive and
  • the sludge can also be dried and burned using known methods. This
  • Patents with a comparable goal but different technology may be mentioned.
  • Fertilizers based on sewage sludge with the direct addition of inorganic cation exchangers to the sludge show a good binding of volatile components, but only a sludge-like to pasty material was obtained which retains the disadvantages listed above, in particular the high water content and the questionable health-related concerns .
  • a sewage sludge compound fertilizer was produced by mixing and coating preformed individual fertilizer salt particles with water-containing sewage sludge, changing their size and shape, and partially removing the water. is driven out by drying. Both the high technical and energy expenditure and the low usable sewage sludge content per unit of product have been found to be disadvantageous in this process.
  • EP 88-301689 describes a process for treating sewage sludge for the production of a fertilizer, in which the process steps consist in adding alkaline materials to the sewage sludge until a pH of 12 is reached or exceeded and then drying the mixture is carried out by blowing in air and adding swelling agents. This process is also very energy and investment-intensive and places high demands on the worker due to the use of caustic chemicals. and environmental protection as well as the material quality of the apparatus.
  • the object on which this invention is based consists in the processing of organic substrates, also called sludges, sludges, to the extent that they are contaminated (industry), become landfill-capable in this process and are therefore not biogenic. Due to the process steps, up to 90% by weight of water are extracted in three stages, whereby an energy expenditure of DM 5.00 per ton is applied per ton.
  • This process for treating sludge leads to a soil additive or hazardous waste that can be landfilled.
  • the present invention is based on the further object of specifying a process for the preparation and recycling of biomass and biogenous sludge, in particular sewage sludge, as a result of which rapid water binding or dewatering is achieved in the same apparatus with little effort and without additional thermal energy
  • the product is hygienized and deformed, so that a product that is valuable in agriculture or forestry can be obtained.
  • the products should be metered, granular, low-dust, mechanically stable and easy to store, as well as soil-improving properties and a long-term fertilizing effect, plant-compatible and biodegradable.
  • the problem is solved with a method for the treatment of sewage sludge for the production of a fertilizer or Soil structure improver in which the pre-dewatered sewage sludge or lime-treated sewage sludge with a solids content of 25 to 90% by weight, preferably 50% by weight, with a water-binding and swellable and ion-exchanging binder, with inorganic and organic nutrients, preferably with compost , to improve the fertilizing properties and above all with solid, granular flour made of porous rock, « aerated concrete flour or wood flour is mixed and this mixture in an apparatus for mechanical high pressure agglomeration through targeted action of compaction forces on small volume elements for primary pre-agglomeration as a result of the structure Components generated friction energy is heated and the heated mixture is pressed through cylindrical channels with further heating due to the release of friction energy.
  • the release of the tribomechanical energy leads to the material being briefly heated to temperatures of well over 100 ° C., so that it is hygienized, the harmful, pathogenic germs and worm eggs being destroyed and the product receiving a stable, dust-free form.
  • an extruder supplies compression and friction energy under vacuum to the evaporation of water.
  • a pelletizer are also pressed under vacuum slurry through a die, here arise temperatures> 138 * C wherein the pasteurization begins.
  • Post-drying with coating of the pellets preserves them sustainably.
  • the moments of inertia are not achieved according to known methods due to excessively high mineral additions, these also stand against the fertilizer laws; but by returning already treated sludge before the decanter or press screw and before the extruder input. Since this returned end product is mixed with peat-coconut pulp and starch, the returned end product is max. at 20 wt .- * also for starch as plastic.
  • the invention relates to: 1.1.
  • Process for the preparation, utilization and pelleting of all cellulose or carbon-containing nitrogen compounds such as:
  • Cereal pulp with high and low solids contents hereinafter referred to as substrate, in which peat, coconut flour, lava flour, cellulose, lime and potassium are only used to improve the structure of the pellets as a pressure agglomeration aid.
  • the biomass obtained contains at least 91% by weight! Solids and can be used as soil additives according to the Fertilizer Act.
  • V The sludge according to 1.1 with dry matter contents between 2.5% by weight and 25% by weight. are homogenized and nitrified, whereby ammonium (NH ft ) is converted to nitrate (N0 3 ). Furthermore, H 2 S connections to other connections are configured.
  • the pellets produced according to I.II are conveyed through a pipe.
  • a conveyor belt and heat exchanger are located in this tube. It is a pipe drying whereby the pellets are post-dried without mechanical stress. The drying takes place through the pellets' own heat of approx. 80 "C. Circulation in the heat exchangers keeps the ambient temperature in the pipe constant, with the pipe angled by% and ending as a chimney.
  • the pellets according to 2.1 fall through a spray tower and then fall through a spray cone consisting of water and soda water glass .
  • the pellets floating in this Sprühtm by a hot air blower which 60 * C hot air of the final drying removes and reduces the gravitational forces.
  • the final drying is made of a tube in which also a conveyor belt and plate heat exchangers were installed. The conveyor belt of the final drying dims the pellets from the spray as a sealed grain fraction 4.5 x 4.5 mm and transports them in storage silos.
  • a slight negative pressure is applied in the filled storage silo in order to avoid residual condensates during the cooling process. After 24 hours, the pellets are insensitive to mechanical or abrasive stress and are therefore suitable for blower transport or loading and are seawater-resistant.
  • lava flour and silicate compounds as structure formers tribomechanical and pressure agglomerative effects such as homo- ensure the consistency of the material matrix and friction energy; that lava flour is used in a grain size of 0.001-0.01 mm; that the tribomechanically active proportion of lava flour does not exceed 5% by weight; that substrates of water-absorbing materials such as peat flour (peat) or coconut flour (coconut fiber) should not be added in excess of 25% by weight of 95% TS; that organic and inorganic compounds such as starch, straw and grasses (c4 grass) -organically, which provide the detection of humic substance formation in the soil, provide structural substrates for the substrates.
  • peat peat
  • coconut flour coconut fiber
  • the substrates are separated by binders (substitutes) in the decanter i solid and liquid fractions; that the dewatered substrates are structurally improved by means of a binder, heated / pasteurized with the aid of an extruder and vacuum-dewatered (steam) by 25% by weight; that the step in the known shape is carried out in pelletizing plants (press channels).
  • binders substitutes
  • the dewatered substrates are structurally improved by means of a binder, heated / pasteurized with the aid of an extruder and vacuum-dewatered (steam) by 25% by weight; that the step in the known shape is carried out in pelletizing plants (press channels).
  • Tribomechanical effects are only of minor importance here.
  • the die (press channels) should have an average of 4.5 ⁇ .
  • the thickness of the die should be 70 mm; that the loading of the substitutes, that agglomerating and tribometing optionally takes place material-related on the respective plant modules provided for this purpose; that conditioned sewage sludge ⁇ 25% by weight? TS can be treated and pelleted; that the binding power of the pellets is increased by a nitrogen-containing polysaccharide - here chitin / chitosan chyustaceae and mushrooms of 0.1-1% by weight; that the cohesion of the matrix and the improvement in nutrients as well as the adjustment of the shear forces due to algae meal from the algae group La inarq-Digitates of 0.1-10% by weight?
  • Rock, gas concrete or wood flour or a mixture of these essentially depends on the water content of the sewage sludge and can be up to 60% by weight! based on the product produced according to the invention.
  • this frictional heat and the tribo-mechanical effects in the press channels of the pelletizing drum increase the temperature under pressure so much that the sewage sludge is hygienized, which is accompanied by further evaporation of the water is connected and leads to the formation of very solid, irreversible matrix structures of the product, as a result of which the nutrients of the product are only released slowly in a retarding manner in the soil.
  • the agglomeration of the mixture of sewage sludge, binder and tribomechanically active components is carried out in roller pelletizing devices known per se.
  • the residual water content in the product produced according to the invention is essential when it is to be stored. Fertilizer- pellets with water contents from 0 to 25% by weight. are preferred.
  • Dosable, mechanically stable, low-dust pellets with a diameter of 2 to 10 mm and a length of 5 to 30 mm are advantageous for agricultural or forestry applications as well as recultivation measures.
  • the sewage sludge used has a deficiency in nutrients
  • the product can be harmonized or raised by adding micronutrient-containing multi-nutrient fertilizers or correspondingly concentrated individual fertilizers and trace elements to the respectively required values for special fertilizers produced according to the invention.
  • the structure formers In order to increase the mechanical strength of the inorganic / organic product matrix, it is possible, according to the invention, to add up to 30% by weight of the structure formers by adding additives made from solid oxides, hydroxides, metasilicates or carbonates of calcium or magnesium the product to increase. This results in very stable soil structure improvers that retain their shape in the soil for a very long time and release the nutrients very slowly.
  • the product produced according to the invention or its sieved fine grain fraction can be recycled in an amount of 0.1 to 02 and added directly to the starting mixture before agglomeration. As a result, a product that is too fine-grained can also be easily recycled.
  • the process according to the invention has the advantage that the pre-dewatered biomass is simultaneously hygienized, agglomerated and dried in a simple, one-step process with a short dwell time and can be used as a valuable fertilizer or soil conditioner without further aftertreatment or thermal drying, while in conventional treatment and drying process for thickened biomass or sludge additionally Process steps before and after shaping are required to obtain a stable granulated dry product.
  • the structure matrix formed with the aid of the method according to the invention on the basis of porous rock flour and layered silicate binding agents is harmless to plants. Due to their porous structure, in which the nutrients and organic substances are stored, the nutrient releases and decomposition take place with a sustained release effect.
  • the inorganic matrix structure has a long shelf life in the soil and thus acts as a soil structure improver with ion exchange and water retention capacity, as well as long-term binding of mineralized nutrients.
  • the pourability and abrasion resistance of the product produced by the process according to the invention enable the use of fertilizer spreaders and meterers for mineral fertilizers, as are customary in agriculture. This also makes the ecologically and plant-physiologically optimal use of fertilizer possible.
  • the product obtainable according to the invention can be cereal plants such as wheat, oats, barley, rye and corn, as well as root crops and other crops.
  • the yield in viticulture, as in general in horticulture, can be increased considerably.
  • the method according to the invention converts an environmentally disruptive product in the form of a sewage sludge into a valuable, environmentally friendly, spreadable economic good.
  • the landfill space freed up by this can be used for other purposes.
  • the process according to the invention can be carried out simply and economically, especially since readily available and cheap additional materials are available with lava flour and smectites, gas concrete or wood flour.
  • the figure shows a flow diagram of a preferred method carried out according to the application and the apparatus used.
  • Wood, compost and / or household waste without metal, glass, plastics and similar materials, ground or shredded to a size of less than 20 mm, are preferably by means of feed la a conveyor belt, fed to the Ruhrwerk 4 with an aerobic ventilation 5. Furthermore, sewage sludge (2.5-6% TS) from the tank 2 by means of feed 2a and pulp, molasses and / or stillage from tank 3 by feed 3a at the Ruhrwerk 4 fed. Water is also supplied from water tank 6 by means of feed 6a, except for 9% TS in Ruhrwerk 4.
  • Ruhrwerk 4 An aerobic stage is carried out in Ruhrwerk 4, advantageously with aeration and / or addition of "Bio Water Clean” (BWC), a commercial biological cleaning preparation.
  • BWC Bio Water Clean
  • the material is fed from the Ruhrwerk 4 to the decanter, advantageously a three-stage decanter, a liquid phase being separated off, which is returned to the water substrate container 6 by means of a feed 8a.
  • feed 16 feeds one or more materials to the extruder, selected from lava flour, algae meal, peat, coconut, starch, straw, grasses C4, chitin, calcium nitrate, preferably approximately 5%, potassium carbonate saltpetre, preferably about 2%, phosphate, preferably about 15%, magnesium nitrate, preferably about 10%, monopotassium phosphate preferably about 15.2%, potassium, preferably about 8.8% manganese sulfate, preferably about 1%, and / or any combination tion of it.
  • materials to the extruder selected from lava flour, algae meal, peat, coconut, starch, straw, grasses C4, chitin, calcium nitrate, preferably approximately 5%, potassium carbonate saltpetre, preferably about 2%, phosphate, preferably about 15%, magnesium nitrate, preferably about 10%, monopotassium phosphate preferably about 15.2%, potassium, preferably about 8.8% manganese sulfate, preferably about 1%, and /
  • the material from decanter 8 and the added Mate ⁇ is rials from supply 16 at a temperature of 100-200 * C, preferably 130-150 * C, more preferably about l4 ⁇ ° C, from the extruder 8 extruded onto a manner known per se as mentioned above.
  • the material is fed through feed 9a to shaking screen 10, of which the separated solids are fed back to extruder 9 through feed 10.
  • the material is fed to the pelletizing device 11 by feed 10a for pelletizing, where the material is pelletized at a temperature of 100-200 * 0, preferably 130-150 * 0, more preferably approximately 1440 * C.
  • a drying stage is then carried out in belt dryer 12 by feed 11a, followed by treatment in spray tower 13 by feed 12a, sodium silicate and fresh BWC being fed in simultaneously by feed 13a.
  • warm air (air-steam Aerosol) of the extruder 9, the vibrating screen 10, the belt dryers 12 and 14 and the spray tower 13 can be fed to a condenser with a fixed bed of lava rock, through lines not shown in the figure.
  • the water condensed in the condenser can then be fed again to the water substrate container 6.
  • the hot air from the condenser 17 can also be used again in the process, for example in the shaker 10 or belt dryer 12 and 14, so that the useful effect of the energy of the system is further conveyed.
  • the liquid phase from the water substrate container 6 can also be used in the production of liquid thinners, and / or the excess can be fed to a clarifier known per se.
  • Organic excess sludge which has no detectable toxic heavy metal content according to the valid sewage sludge regulation and as a thickened, lime-treated sludge a water content of 65 G v. -%, is with 15 Gew-Ji Kali, 15 Gew-? Lava stone powder with a grain size of 1.01 to 1.2 mm and 5% smectite with high swelling capacity was added and mixed and then transferred to the drum of a high-pressure agglomeration apparatus equipped with a perforated die with drilling channels of 4.5 mm in diameter is.
  • the running surface of the die is 200 mm and the effective press surface is 3700 cm 2 , which results in a performance-related specific press surface of 20 cm 2 / kW.
  • the product is pre-agglomerated at a die speed of approx. 150 to 200 rpm and pressed through the press channels, whereby, due to the coarse-grain material, considerable frictional heat is released, which intensifies short-term pressure hygienization , the evaporation of water and the formation of a mechanically stable inorganic-organic structure matrix.
  • the pellets sheared to the desired length by a doctor blade have a residual moisture in bound water of 40 * . and a compressive strength of more than 1000 kN / cm 2 .
  • the pellets are almost odorless, gray-brown colored, free-flowing and low-dust.
  • the process can be operated batchwise or continuously.
  • the sewage sludge product is produced according to the manufacturing process as described in Example 1.
  • the bound water of the resulting pellets is approx. 30% by weight.
  • the pellets are odorless and mechanically very stable (approx. 1500 kN / cm 2 compressive strength) and meet the requirements of the current fertilizer ordinance.
  • Both natural and synthetic fertilizers are possible, in particular nitrogen, phosphorus and potassium fertilizers for the production of a complete fertilizer. This complements the core nutrients already contained in the sewage sludge.
  • the added fertilizers are in particular: ammonium sulfate, urea, lime nitrate, calcium cyanamide, calcium ammonium nitrate, calcium ammonium nitrate, sodium nitrate, multi-nutrient or mixed fertilizers such as Thomaskali etc., and complete fertilizers such as Nitrophoska.
  • small amounts of a spruce needle aroma (approx. 0.001 to 0.01% by weight?) Can be added after the pellet has been obtained.
  • the granules form a soil structure improver with high mechanical strength and long durability in the soil.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Treatment Of Sludge (AREA)

Abstract

L'invention concerne un procédé de traitement et de valorisation de biomasses et de boues biogènes, notamment de boues d'épuration. L'invention vise à créer un procédé permettant un traitement, simple et consommant peu d'énergie, de boues d'épuration ou d'autres boues biologiques, sans nécessiter d'énergie thermique pour donner un produit à faible teneur en eau, présentant une résistance mécanique élevée et un grand pouvoir fertilisant. Ce produit doit en outre être inodore, apte au stockage, coulant et facile à doser afin d'être directement utilisable dans l'agriculture et de présenter un pouvoir fertilisant de longue durée. A cet effet, on utilise un procédé de fabrication d'engrais ou de produits d'amélioration du sol à partir de boues d'épuration. Ce procédé consiste à mélanger la boue d'épuration préalablement déshydratée, avec un liant de silicate stratifié expansible et une poussière de roche, de béton-gaz ou de bois présentant des grains fins à gros. Le mélange est ensuite intimement mélangé à l'aide de cylindres dans un dispositif d'agglomération haute pression puis comprimé à travers des conduits presseurs en libérant de l'énergie de friction produisant des températures supérieures à 100 °C, ce qui permet de stériliser le produit. On obtient alors une matrice de structure organique-inorganique. Ce procédé ne nécessite aucun séchage ultérieur.
PCT/EP1995/003336 1994-08-19 1995-08-21 Procede de traitement, valorisation et transformation en boulettes de composes organiques et inorganiques sous forme solide et liquide, en particulier de biomasse et de boues biogenes telles que des boues d'epuration WO1996006060A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34722/95A AU3472295A (en) 1994-08-19 1995-08-21 Process for preparing, utilising and pelletizing organic and inorganic compounds in solid and liquid form, in particular compounds in biomass and biogenic sludges such assewage sludge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4429410.7 1994-08-19
DE4429410 1994-08-19

Publications (1)

Publication Number Publication Date
WO1996006060A1 true WO1996006060A1 (fr) 1996-02-29

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WO (1) WO1996006060A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29819822U1 (de) 1998-11-06 1999-04-29 Innovation Pro Terra GmbH & Co KG, 76275 Ettlingen Organisches Düngemittel
EP0949222A1 (fr) * 1998-04-07 1999-10-13 Paul & Raoul Legrand Société Anonyme Unité et procédé de traitement des boues et produit de fertilisation
DE10128028A1 (de) * 2001-06-08 2002-12-12 Vti Thueringer Verfahrenstechn Klärschlammgranulat und Verfahren zur Herstellung
DE102007006137A1 (de) 2007-02-07 2008-08-21 First Vandalia Luxembourg Holding S.A. Misch-Produkt
FR2975693A1 (fr) * 2011-05-23 2012-11-30 Jean Pierre Jacquinet Structurants physico-chimiques et regenerateurs biologiques des sols et/ou des supports de culture peu reactifs
DE102014003036A1 (de) * 2014-03-07 2015-09-24 Gedor Recycling & Rohstoffhandel Gmbh Langzeitdünger
DE202017104986U1 (de) 2017-08-18 2018-11-21 Lmengineering Gmbh Langzeitdüngemittel sowie eine Vorrichtung zu dessen Herstellung
DE102017214461A1 (de) 2017-08-18 2019-02-21 Lmengineering Gmbh Verfahren zur Herstellung eines Düngemittels, ein Düngemittel enthaltend Ammoniumcarbonat sowie eine Vorrichtung und deren Verwendung
DE102018116414A1 (de) 2018-07-06 2020-01-09 Leibniz-Institut für Werkstofforientierte Technologien - IWT Festes rieselfähiges Mehrkomponentengranulat, Verfahren zum Herstellen eines festen rieselfähigen Mehrkomponentengranulates und vollwertiges Düngergranulat
CN115920840A (zh) * 2022-10-31 2023-04-07 城康材料技术有限公司 一种污泥基活性炭吸附剂及其制备方法和应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444392A2 (fr) * 1990-01-24 1991-09-04 LOIDELSBACHER & PARTNER GESELLSCHAFT m.b.H. Procédé de fabrication d'engrais ou d'agents d'amélioration du sol à partir de composants organiques et minéraux
CH683519A5 (de) * 1991-04-30 1994-03-31 Anton Matwiejko Verfahren zur Herstellung eines wachstumfördernden Schüttgutes aus biologischen Rückständen und Anlage zur Durchführung des Verfahrens.
DE4334900A1 (de) * 1993-10-13 1995-04-20 Eder Umweltdienste Gmbh & Co K Verfahren zur Aufbereitung und Verwertung von Biomassen und biogenen Schlämmen, insbesondere von Klärschlämmen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444392A2 (fr) * 1990-01-24 1991-09-04 LOIDELSBACHER & PARTNER GESELLSCHAFT m.b.H. Procédé de fabrication d'engrais ou d'agents d'amélioration du sol à partir de composants organiques et minéraux
CH683519A5 (de) * 1991-04-30 1994-03-31 Anton Matwiejko Verfahren zur Herstellung eines wachstumfördernden Schüttgutes aus biologischen Rückständen und Anlage zur Durchführung des Verfahrens.
DE4334900A1 (de) * 1993-10-13 1995-04-20 Eder Umweltdienste Gmbh & Co K Verfahren zur Aufbereitung und Verwertung von Biomassen und biogenen Schlämmen, insbesondere von Klärschlämmen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949222A1 (fr) * 1998-04-07 1999-10-13 Paul & Raoul Legrand Société Anonyme Unité et procédé de traitement des boues et produit de fertilisation
DE29819822U1 (de) 1998-11-06 1999-04-29 Innovation Pro Terra GmbH & Co KG, 76275 Ettlingen Organisches Düngemittel
DE10128028A1 (de) * 2001-06-08 2002-12-12 Vti Thueringer Verfahrenstechn Klärschlammgranulat und Verfahren zur Herstellung
DE102007006137A1 (de) 2007-02-07 2008-08-21 First Vandalia Luxembourg Holding S.A. Misch-Produkt
FR2975693A1 (fr) * 2011-05-23 2012-11-30 Jean Pierre Jacquinet Structurants physico-chimiques et regenerateurs biologiques des sols et/ou des supports de culture peu reactifs
DE102014003036A1 (de) * 2014-03-07 2015-09-24 Gedor Recycling & Rohstoffhandel Gmbh Langzeitdünger
DE202017104986U1 (de) 2017-08-18 2018-11-21 Lmengineering Gmbh Langzeitdüngemittel sowie eine Vorrichtung zu dessen Herstellung
DE102017214461A1 (de) 2017-08-18 2019-02-21 Lmengineering Gmbh Verfahren zur Herstellung eines Düngemittels, ein Düngemittel enthaltend Ammoniumcarbonat sowie eine Vorrichtung und deren Verwendung
DE102018116414A1 (de) 2018-07-06 2020-01-09 Leibniz-Institut für Werkstofforientierte Technologien - IWT Festes rieselfähiges Mehrkomponentengranulat, Verfahren zum Herstellen eines festen rieselfähigen Mehrkomponentengranulates und vollwertiges Düngergranulat
WO2020007426A1 (fr) 2018-07-06 2020-01-09 John Saskia Ludovica Elise Granulé à plusieurs constituants solide coulant, procédé de préparation d'un granulé à plusieurs constituants solide coulant et granulé d'engrais complet
CN115920840A (zh) * 2022-10-31 2023-04-07 城康材料技术有限公司 一种污泥基活性炭吸附剂及其制备方法和应用

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