| Patents for C05F 7 - Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses (2,138) |
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| 10/26/1995 | DE4419280C1 Treatment of sewage sludge |
| 10/03/1995 | US5454849 Soil treatment composition |
| 08/31/1995 | DE4404860A1 Plant tonic for induction and improvement of resistance |
| 08/10/1995 | DE4403589A1 Disposal of organic waste, esp. food |
| 08/03/1995 | WO1995020552A1 Sludge conditioning method |
| 07/25/1995 | US5435923 Method for the treatment of sewage sludge and the like |
| 07/20/1995 | WO1995019327A1 Sludge treatment system |
| 07/18/1995 | US5433846 Grease-trap wastewater treatment system |
| 07/06/1995 | DE4445702A1 Incineration of sewage sludge giving ash useful as fertiliser |
| 07/04/1995 | US5429750 Efficiency |
| 07/04/1995 | US5428906 For converting sludge into fertilizer |
| 06/28/1995 | EP0659695A1 Method and apparatus for conditioning sewage sludge |
| 06/22/1995 | DE4409594A1 Recovering fertiliser, free from heavy metals, from sewage sludge |
| 06/22/1995 | DE4343282A1 Disposal of clear sludge from waste water treatment |
| 06/20/1995 | CA1336019C Organic waste treatment system and method |
| 06/20/1995 | CA1335940C Process for producing a dried fertilizer from sewage sludge |
| 06/15/1995 | CA2111431A1 Method and apparatus for producing solid fertilizer from liquid substances such as manure from livestock or sludge |
| 06/14/1995 | EP0657405A1 Process and device for the obtention for fertiliser from liquid and crop wastes |
| 06/14/1995 | DE4341923A1 Adsorbent material useful as animal litter |
| 05/24/1995 | DE4409649C1 Treatment of wet clarified sewage sludge used in agriculture |
| 05/23/1995 | US5417861 Process to stabilize bioorganic, raw or treated wastewater sludge |
| 05/16/1995 | US5415778 Humic and fulvic acids; water pollution control |
| 05/11/1995 | WO1995012560A1 Process for treating waste materials with concentrated acid and the product produced thereby |
| 05/11/1995 | CA2175561A1 Process for treating waste materials with concentrated acid and the product produced thereby |
| 05/10/1995 | EP0652192A1 Process of manufacturing a fertiliser and soil conditioner material |
| 05/09/1995 | US5413432 Multipurpose processing system and method for the beneficial use and management of sludge |
| 04/27/1995 | DE4436659A1 Method of producing soil |
| 04/27/1995 | DE4335746A1 Process and apparatus for disposing of sewage sludge |
| 04/27/1995 | DE4335745A1 Shaped article charged with nutrients for application to soils |
| 04/26/1995 | EP0649826A1 Process and device for sludge disposal |
| 04/26/1995 | EP0649825A1 Sludge treatment process |
| 04/20/1995 | DE4334900A1 Process for treating and utilising biomasses and biogenic sludges, in particular sewage sludges |
| 03/29/1995 | CN1100703A Method of treatment of sewage sludge and kitchen garbage |
| 03/23/1995 | WO1995007744A1 System and method of processing mixture of solids and liquids |
| 03/23/1995 | DE4331546A1 Sewage sludges enriched with nutrients, their preparation and their use |
| 02/23/1995 | WO1995005346A1 Process for purifying contaminated liquids utilizing ozone |
| 02/07/1995 | US5387056 Method for treating dredging spoils for salt contamination |
| 02/02/1995 | DE4325641A1 Process for treating and disposing of sewage sludges of a region |
| 01/31/1995 | US5385673 Dewatering; acidification; alkaline conditioning; heat from exothermic reactions and heat of hydration destroys pathogens |
| 01/26/1995 | DE4324208A1 Method of composting sewage sludge |
| 01/25/1995 | CN1097724A Method for producing highly efficient granular organic fertilizer by using urban mud and excrements |
| 01/18/1995 | CN1097409A Composite organic bacterial fertilizer made from algae dregs and its manufacture |
| 01/04/1995 | EP0631998A1 Functional ceramics |
| 01/03/1995 | US5378257 Fertilizer production |
| 12/22/1994 | WO1994029229A1 Preparation of free-flowing solids from aqueous waste |
| 12/14/1994 | EP0628318A1 Method for deodorizing animal excrement, deodorized animal excrement and their use |
| 11/30/1994 | EP0625961A1 Effluent treatment process |
| 10/13/1994 | DE4311769A1 Process for clearing and disposing of waste landfills |
| 10/11/1994 | US5354349 Method for manufacturing of organic fertilizers |
| 10/06/1994 | DE4304342C1 Process for the preparation of a sewage-sludge-based fertiliser |
| 09/29/1994 | WO1994021576A1 Organic fertilizer and method of manufacturing it |
| 09/29/1994 | CA2157275A1 Organic fertilizer and method of manufacturing it |
| 09/13/1994 | US5346527 Soil treatment |
| 08/31/1994 | CN1091405A Method and apparatus for disposal and treatment of waste |
| 08/18/1994 | DE4324502A1 Oxidatives Abfallbehandlungsverfahren Oxidative waste treatment processes |
| 08/10/1994 | EP0609865A1 Process for obtaining an organic or organic-mineral fertiliser |
| 07/21/1994 | DE4327831C1 Prodn. of materials for soil reclamation |
| 07/07/1994 | WO1994014730A1 A method and an apparatus for producing plant nutritive pellets from wastewater sludge |
| 06/07/1994 | US5318184 Sludge drying system |
| 05/05/1994 | DE4240807C1 Fertilisers based on dewatered sludge mixt. - contains sewage sludge ash and mineral fertiliser releasing nutrients according to need |
| 05/03/1994 | US5308372 Vegetable oil processing to obtain nutrient by-products |
| 04/27/1994 | CN1085882A Bio-bacterial fertilizer and its method for mfg. |
| 04/26/1994 | CA1328933C Process for treating various refuse materials, particularly smoke, garbage and sewage |
| 04/15/1994 | CA2080547A1 Device and method for mixing peat and sludge |
| 04/12/1994 | US5302179 Method and apparatus for producing useful soil products from waste products |
| 03/31/1994 | WO1994006734A1 Methods and apparatus for disposal and treatment of waste |
| 03/31/1994 | WO1994006730A1 Water and soil treatment method |
| 03/10/1994 | DE4301091C1 Utilisation of clarifier sludge for energy prodn. - by using sludge as fertiliser for growing sustainable cpds. which can be burnt to produce heat |
| 03/03/1994 | DE4239297A1 Composting clarifier sludge or organic waste - by mixing with excavated soil and straw or chaff |
| 03/02/1994 | CN1083143A Alkaline process paper-making black liquor treatment and comprehensive utilization method |
| 02/24/1994 | DE4227131A1 Method of conditioning sewage sludge - by addition of clay and lime to reduce ammonia emissions |
| 02/23/1994 | CN1023863C Nutrient for plant and its prepn. method |
| 02/08/1994 | US5284578 Apparatus for treating sludge |
| 02/03/1994 | WO1994002418A1 A method of and an apparatus for purifying aqueous suspensions containing organic material and cations |
| 02/02/1994 | EP0581706A1 Fertilizer and process of manufacturing thereof |
| 01/20/1994 | WO1994001369A1 A method of dewatering for sludge |
| 01/18/1994 | US5279637 Sludge treatment system |
| 01/11/1994 | US5277825 Materials handling |
| 01/05/1994 | CN1023393C Method of treating wastewater sludge |
| 01/04/1994 | US5275733 Odor reduction with highly adsorbent material; adjusting pH, conductivity and solids content; adding microflora to catabolize organics |
| 01/04/1994 | CA2026849C Method and means for treating sludge |
| 12/29/1993 | EP0395724B1 Process for utilizing sewage sludge |
| 12/22/1993 | EP0574562A1 Integrated biomethanizing and composting method and apparatus |
| 12/15/1993 | EP0574252A1 Treatment of sewage sludge |
| 11/09/1993 | US5259977 Partially dewatered, mixer, alkaline material, exothermic reaction, discharge receptacle, agglomeration, pellets, moisture reduction means, recycling |
| 10/28/1993 | WO1993021287A1 Process for converting sludge into a fuel or a soil conditioner |
| 10/20/1993 | EP0566256A1 Process for treating oily sludge and organic wastes |
| 10/14/1993 | CA2092393A1 Process for treating oily sludge and organic wastes |
| 10/13/1993 | EP0564857A1 Plant growth substrate with fertilising effect, in particulate free flowing form and process for the manufacture thereof |
| 10/12/1993 | US5252116 Organic base fertilizer from municipal sewage sludge |
| 09/15/1993 | EP0560626A1 Non-destructive recovery of natural nitrogen products |
| 08/31/1993 | US5240490 Charging to fluid bed reactor-granulator, acidifying, forming into hardened particles, discharging free of caramelization |
| 08/25/1993 | EP0557078A1 Process to stabilize wastewater sludge |
| 08/18/1993 | CN1075312A Process for production of humic acid liquid compound fertilizer |
| 08/05/1993 | WO1993015026A1 Effluent treatment process |
| 08/05/1993 | CA2128498A1 Effluent treatment process |
| 07/22/1993 | WO1993014047A1 Integrated biomethanizing and composting method and apparatus |
| 07/22/1993 | WO1993014046A1 Fertilizer mixture and process for production of the fertilizer mixture |
| 06/24/1993 | DE4142085A1 Sludge disposal - involves using water removal and fertiliser collection to develop a biomass for disposal |
| 06/24/1993 | DE4141639C1 Prodn. of humus-like substrate from purified sewage - comprises using solid sewage residue to condition sewage and reduce incandescence |