| Patents for C05F 7 - Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses (2,138) |
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| 06/11/1998 | CA2276247A1 Process and apparatus for utilizing animal excrement |
| 05/27/1998 | EP0844222A2 Use of modified waste products from cellulose production as peat substitute |
| 05/26/1998 | US5755852 Bioconverted nutrient rich humus |
| 04/30/1998 | DE19644612A1 Preparation of solid, pelletised fertiliser |
| 04/15/1998 | EP0835226A1 Process and device for continuously drying protein-containing sludge |
| 04/02/1998 | DE19629723C1 Sewage sludge conditioning method for fertiliser production |
| 03/17/1998 | US5728192 Fibrous waste material, textile waste |
| 03/17/1998 | US5727879 Waste decomposition treatment apparatus |
| 02/24/1998 | US5720792 Organic fertilizer and method of manufacturing it |
| 02/18/1998 | EP0823887A1 Method and device for a combined treatment of domestic sewage and domestic biodegradable garbage |
| 02/11/1998 | EP0822926A1 Fertilizer and process for production thereof |
| 01/28/1998 | EP0820425A1 Method of composting organic waste and/or sewage sludge, and a device for carrying out the method |
| 01/14/1998 | CN1169975A Preparation of complex of humic acids and urea |
| 01/07/1998 | EP0815059A1 Stabilization of bio-organic sludges |
| 12/17/1997 | CN1167744A Production of organic mixed fertilizer using paper-making black liquor waste |
| 12/16/1997 | US5698028 Composition and process for improving soil |
| 12/10/1997 | CN1167098A Method for making fertilizer and forage utilizing black liquor of alkaline method paper making and fermentation device thereof |
| 12/09/1997 | US5695301 Method of controlling erosion and creating an environment for the formation of a growth medium |
| 11/18/1997 | US5688686 Fermentation apparatus |
| 11/04/1997 | US5683951 Water treatment, roasting a ceramic and treatment with microorganisms of bacteria, fungi or yeasts |
| 11/04/1997 | US5683665 Composition and process for cleansing exhaust gas |
| 11/04/1997 | US5683664 Of a deodorizing ceramic obtained by calcining a composition comprising raw ceramic materials and microorganisms and/or culture fluid thereof |
| 10/28/1997 | US5681481 Process and apparatus for liquid sludge stabilization |
| 09/03/1997 | CN1158328A Organic and inorganic mixed fertilizer and its prepn. method |
| 08/21/1997 | WO1997030008A1 A method and apparatus for treating liquid-containing material based on organic waste products |
| 08/21/1997 | CA2245544A1 A method and apparatus for treating liquid-containing material based on organic waste products |
| 08/13/1997 | EP0689526B1 Organic fertilizer and method of manufacturing it |
| 08/05/1997 | US5653872 Apparatus for removing water from aqueous sludge waste compositions |
| 07/30/1997 | CN1155529A Compound fertilizer made from mud or algae sludge and process therefor |
| 07/03/1997 | WO1997023418A1 Improvements in or relating to treatment of sludge waste |
| 07/02/1997 | EP0781741A1 Sludge treatment process |
| 06/25/1997 | CN1152565A Mixed amino-acid complex state multielement micro-fertilizer and making method |
| 05/27/1997 | US5633163 Applying wastewater and solid organic waste to upper layer of filter bed to confine wastewater, maintaining in an aerobic condition, removing wastewater from bottom of filter bed, removing solid waste in decomposed state |
| 05/22/1997 | WO1997017832A1 Method of controlling erosion and creating an environment for the formation of a growth medium |
| 05/20/1997 | US5630944 Mixing with wood chips; shearing and coating |
| 05/13/1997 | US5628913 Using an air stream having entrained hydrophilic powder to stabilize the pellet string and/or the pellets and prevent sticking; antiagglomerants; materials handling |
| 05/13/1997 | US5628812 Method and installation for ventilating and controlling a biological dehydration and stabilization treatment of a moist fermentable organic product |
| 05/06/1997 | US5626644 Storm water remediatory bioconversion system |
| 05/02/1997 | EP0770586A1 Process and installation for producing fertiliser |
| 04/16/1997 | EP0768286A1 Horizontal paddle type fermentation system and method of operating the same |
| 04/16/1997 | CN1147491A Horizontal paddle type fermentation system and method of operating the same |
| 03/27/1997 | DE19638414A1 Treating waste water |
| 03/26/1997 | EP0764613A2 Process and plant for purification of municipal and domestic waste water |
| 02/11/1997 | US5602065 Calcining raw materials and microorganisms; oxidation resistance |
| 02/05/1997 | CN1141903A Organic matter fermentation promotor and production method thereof |
| 01/30/1997 | WO1997003023A1 Cylindrical sieving and composting device and a method using the device |
| 01/29/1997 | CN1141278A Method for mfg. organic fertilizer |
| 01/14/1997 | US5593099 Apparatus for producing solid fertilizer from liquid substances such as manure from liverstock or sludge |
| 01/03/1997 | WO1997000229A1 Process and device for continuously drying protein-containing sludge |
| 01/02/1997 | DE19522164A1 Verfahren und Vorrichtung zur kontinuierlichen Trocknung von Protein enthaltendem Schlamm Method and apparatus for continuous drying protein-containing sludge |
| 11/21/1996 | WO1996036570A1 Process and apparatus for liquid sludge stabilization |
| 11/20/1996 | EP0742784A1 Sludge conditioning method |
| 11/14/1996 | DE19517603A1 Converting wet clarified sludge into useful prods. such as fuel, fertiliser or building material |
| 11/07/1996 | WO1996034841A1 Method and device for a combined treatment of domestic sewage and domestic biodegradable garbage |
| 10/31/1996 | WO1996033961A1 Fertilizer and process for production thereof |
| 10/31/1996 | CA2219167A1 Fertilizer and process for production thereof |
| 10/23/1996 | EP0738245A1 A method and an apparatus for producing plant nutritive pellets from wastewater sludge |
| 10/17/1996 | WO1996032361A1 Method of composting organic waste and/or sewage sludge, and a device for carrying out the method |
| 10/17/1996 | DE19513701A1 Verfahren zur Kompostierung von organischen Abfällen und/oder Klärschlamm und Vorrichtung zur Durchführung dieses Verfahrens A method for composting organic waste and / or sewage sludge and apparatus for carrying out this method |
| 10/10/1996 | WO1996031441A1 Combined waste treatment |
| 10/09/1996 | CN1132732A Prodn process of converting organic waste into liquefied petroleum gas and long-effect plant soil base |
| 09/25/1996 | CN1131498A Stereoscopic multi-layer multi-purpose fermentation device |
| 09/24/1996 | US5557873 Method of treating sludge containing fibrous material |
| 09/19/1996 | WO1996028393A1 Stabilization of bio-organic sludges |
| 09/19/1996 | CA2215667A1 Stabilization of bio-organic sludges |
| 08/29/1996 | DE19506488A1 Treatment of clarifier sludge by addn. of comminuted plant residues |
| 08/29/1996 | DE19506195A1 Conversion of sewage sludge to fertiliser or soil improver |
| 08/22/1996 | WO1996025373A1 Improvements in fertilisers |
| 08/22/1996 | WO1996025372A1 Improvements in fertilisers |
| 08/22/1996 | CA2212732A1 Improvements in fertilisers |
| 08/21/1996 | EP0726886A1 Process for treating waste materials with concentrated acid and the product produced thereby |
| 08/11/1996 | CA2169331A1 Method of treating sewage sludge containing fibrous material |
| 08/06/1996 | US5543050 Anaerobically and aerobically biodegrading, then composting dewatered solid waste and discharging clarifying wastewater; water and landfill pollution control |
| 07/23/1996 | US5538529 Bioconverted nutrient rich humus |
| 07/18/1996 | WO1996021625A1 Method of treating a biomass in order to remove heavy metals with hydrogen sulphide |
| 07/03/1996 | EP0719171A1 System and method of processing mixture of solids and liquids |
| 06/27/1996 | DE4446739A1 Verfahren zum Kompostieren von Klärschlamm Method of composting of sewage sludge |
| 06/19/1996 | EP0716892A1 Process for the treatment of waste material |
| 06/11/1996 | US5525239 Introducing mixture of wastewater sludge and alkaline material into flow of heated air, modifying flow paths of some particles, collecting more advanced particles into aggregate |
| 06/04/1996 | US5522156 Drying apparatus and method |
| 05/28/1996 | US5521131 Functional ceramics |
| 04/10/1996 | EP0705806A2 Process and plant for producing heat treated growth substrate and manure |
| 03/27/1996 | EP0487600B1 Process and plant for producing heat treated growth substrate and manure |
| 03/27/1996 | CN1119177A Method and equipment for making manure by sewage treatment |
| 03/20/1996 | CN1118774A Method for producing liquid fertilizer |
| 03/14/1996 | WO1996007620A1 A method and device for dewatering of sludge |
| 02/29/1996 | WO1996006060A1 Process for preparing, utilising and pelletizing organic and inorganic compounds in solid and liquid form, in particular compounds in biomass and biogenic sludges such as sewage sludge |
| 02/20/1996 | US5492624 Feeding waste to autothermal aerobic digestion reactor to produce biomass and clear decant, contacting portion of biomass with oxidizing agent to produce oxidized effluent, returning to reactor |
| 01/23/1996 | US5486068 Process for treating waste materials with concentrated acid and the product produced thereby |
| 01/03/1996 | EP0689526A1 Organic fertilizer and method of manufacturing it |
| 12/27/1995 | CN1113901A Preparing method for calcium silicate fertilizer |
| 12/27/1995 | CN1113684A A method and an apparatus for producing plant nutritive strings or pellets from wastewater sludge |
| 12/05/1995 | US5472474 Method for producing liquid fertilizer |
| 12/05/1995 | US5472472 Slurrying; soluble phosphorus precipitated with metallic salts; aerobic and anaerobic treatment of biomass; polishing ecoreactor zone; humus |
| 11/22/1995 | EP0683143A1 Method for producing liquid fertilizer |
| 11/22/1995 | CN1030312C Biological mixed fertilizer and its producing method |
| 11/16/1995 | DE4416581A1 Use of organic waste materials, e.g. sewage sludge or compost |
| 11/08/1995 | EP0680936A1 Method for processing sewage sludge |
| 11/02/1995 | DE4415262A1 Multi-nutrient fertiliser |
| 10/31/1995 | CA1337457C Process for treating organic material |