Patents
Sitemap › C05 - Fertilisers; Manufacture thereof › C05F - Organic fertilisers not covered by subclasses , , e.g. fertilisers from waste or refuse › C05F 7 - Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
Patents for C05F 7 - Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses (2,138)
12/2000
12/06/2000EP1056691A1 Method and plant for the treatment of liquid organic waste
12/06/2000CN1059188C Organic and inorganic mixed fertilizer and preparation process thereof
11/2000
11/09/2000WO2000066184A1 Process and apparatus for utilizing animal excrement
11/09/2000CA2371981A1 Process and apparatus for utilizing animal excrement
11/01/2000CN1057985C Process for preparation of complex of human acids and urea
10/2000
10/17/2000US6132138 Gray water recycling system
10/05/2000WO2000058230A1 Method of treating waste water
10/05/2000WO2000058229A1 Method of treating and utilizing sludge
10/04/2000EP1040087A1 Stabilized liquid lime dispersion for sewage treatment
10/03/2000US6126827 A wastewater treatment including settling and separating solids from the liquid component, the separated solid portion is turned into a commercially composting material, biotreating liquid influent before discharging to the ground
09/2000
09/26/2000US6123747 For use in farmlands and flower gardens so as to prevent secondary contamination of environment
09/20/2000CN1266832A Process for preparing compound organic fertilizer from municipal sludge
09/13/2000EP1034152A1 Sewage sludge recycling with a pipe cross-reactor
09/05/2000US6112458 Processing of sewage sludge into humus
08/2000
08/16/2000CN1263074A Chemical fertilizer production process and sludge and garbage treatment integrated method for preparing organic phosphate fertilizer and its mixer
08/08/2000US6099741 Method and apparatus for treating liquid-containing material based on organic waste products
07/2000
07/27/2000WO2000043129A1 Method and apparatus for mixing dry pellets and wet sludge of bio-solids
07/19/2000EP0820425B1 Method of composting organic waste and/or sewage sludge, and a device for carrying out the method
07/19/2000CN1260339A Quick intensifying degradable and long-effect active organic fertilizer and its production method and equipment
06/2000
06/28/2000EP1012122A1 Method for treating alkaline waste water
06/14/2000EP1007494A1 Method and apparatus for producing a soil improvement material and such a material
05/2000
05/31/2000CN1254694A Ammonium-magnesium compounded pulping process for preparing compound organic fertilizer directly from black liquid
05/17/2000EP1000904A2 Method for recovering phosphate from sludge and system therefor
05/17/2000CN1052462C Method of treatment of sewage sludge and kitchen garbage
05/04/2000DE19930930A1 Polder sludge draining process renders lagoon fit for agricultural use and water fit for release at low cost
04/2000
04/20/2000DE19846140A1 Thin sludge rendered fit for composting and disposal by admixture of pelletized egg cartons with egg shell
04/13/2000WO2000020356A1 Method of making a fertilizer composition
04/12/2000EP0991594A1 Method and device for sewage treatment
03/2000
03/15/2000CN1247179A Compound multi-element organic fertilizer and its preparing process
03/14/2000US6036881 Stabilized liquid lime dispersion for sewage treatment
02/2000
02/09/2000CN1244179A Process and apparatus for utilizing animal excrement
02/02/2000EP0976683A1 Process for transforming into humus an aqueous suspension of organic matter, especially sewage sludge
01/2000
01/13/2000DE19846358A1 Environmentally acceptable dewatering of open water sediments for agricultural use and construction
12/1999
12/01/1999EP0960072A1 Process and apparatus for utilizing animal excrement
12/01/1999EP0871597B1 Method of treating a biomass in order to remove heavy metals with hydrogen sulphide
11/1999
11/16/1999US5984993 Method and composition for odor control
11/16/1999US5984992 Sewage sludge recycling with a pipe cross-reactor
11/11/1999WO1999057078A1 Method for producing solid fertilizer from organic sewage sediment
11/02/1999US5976372 Method of treating a biomass in order to remove heavy metals with hydrogen sulphide
11/02/1999US5976211 Fertilizer and process for production thereof
10/1999
10/28/1999WO1999054268A1 Method and apparatus for removing organic waste from water, effluent and sludge
10/27/1999EP0822926B1 Fertilizer and process for production thereof
10/13/1999EP0949222A1 Installation and method for the treatment of sludges and fertiliser product
10/13/1999EP0835226B1 Process and device for continuously drying protein-containing sludge
09/1999
09/15/1999EP0879215A4 Process and apparatus for liquid sludge stabilization
08/1999
08/31/1999US5945332 Cylindrical sieving and composting device and a method using the device
08/31/1999CA2098807C Waste treatment process employing oxidation
08/26/1999WO1999042423A1 Method and plant for the treatment of liquid organic waste
08/18/1999CN1044701C Apparatus for stirring fermenter
07/1999
07/22/1999WO1999036374A1 Method for treating sewage sludge
07/22/1999DE19801741A1 Clarification sludge is treated to produce humus for agricultural use
07/21/1999CN1223627A Method of preparing base material of liquid fertilizer
07/08/1999DE19811969C1 Biodegrading sludge containing hydrocarbons
06/1999
06/29/1999US5916448 Chemical conditioning of liquid and semi-liquid sludge for dewatering, odor control, pathogen control, nutrient enhancement of the residual, and handling characteristics
06/29/1999US5916437 Domestic sewage cleaning system
06/24/1999WO1999030846A1 Method and system for treating organic waste
06/15/1999US5911543 Method of controlling erosion and creating an environment for the formation of a growth medium
05/1999
05/27/1999WO1999025655A1 Waste-water, sludge and wet mud disposal system
05/06/1999WO1999021804A1 Stabilized liquid lime dispersion for sewage treatment
05/06/1999WO1999021802A1 Gray water recycling system
04/1999
04/08/1999DE19749085A1 Soil substrate with low mobility of harmful substances from clarified sludge and thermally activated clay
03/1999
03/31/1999EP0738245B1 A method and an apparatus for producing plant nutritive pellets from wastewater sludge
03/11/1999WO1999011579A1 Sludges conditioning process from sanitation sewage treatment
03/10/1999EP0900767A1 Process for recycling of sewage sludge
03/10/1999CN1210508A Method and apparatus for treating liquid-containing material based on organic waste products
02/1999
02/04/1999WO1999005067A1 Method for treating alkaline waste water
02/04/1999CA2297281A1 Method for treating alkaline waste water
01/1999
01/27/1999EP0892764A2 Processing of sewage sludge into humus
01/26/1999US5862610 Method for coating dry pellets made of waste bio-solids with waste bio-solids
01/14/1999DE19729559A1 Re-utilisation of street sweepings comprises composting with domestic, garden, paper-making or water purification waste
01/07/1999EP0889014A1 Process for the treatment of sludge
12/1998
12/29/1998US5853590 Method for treating bioorganic and wastewater sludges
12/29/1998US5853450 Method for treating bioorganic and wastewater sludges
12/23/1998CN1202466A Complex treatment process for waste water of paper making ammonium salt process
12/22/1998US5851404 Process and apparatus for liquid sludge stabilization
12/10/1998WO1998055402A1 Method and device for sewage treatment
12/02/1998EP0880484A1 A method and apparatus for treating liquid-containing material based on organic waste products
11/1998
11/25/1998EP0879215A1 Process and apparatus for liquid sludge stabilization
11/12/1998WO1998050323A1 Sewage sludge recycling with a pipe cross-reactor
11/04/1998CN1197778A Re-mixed fertilizer producing method by using tanning waste liquid and sludge as material
10/1998
10/21/1998EP0871597A1 Method of treating a biomass in order to remove heavy metals with hydrogen sulphide
10/21/1998EP0871589A1 Cylindrical sieving and composting device and a method using the device
10/15/1998WO1998045227A1 Method and apparatus for producing a soil improvement material and such a material
10/08/1998DE19717854C1 Process purifying domestic or industrial waste waters
10/01/1998DE19726128C1 Converting clarifier sludge etc. into arable soil
09/1998
09/30/1998EP0625961B1 Effluent treatment process
09/23/1998CN1193618A Composite fertilizer containing solid from boiled waste liquid in papermaking and preparation thereof
09/11/1998WO1998030505A3 Processing of sewage sludge into humus
08/1998
08/26/1998EP0860402A2 Raw sludge treatment process
08/12/1998EP0857519A2 Process for the transformation of waste materials
08/12/1998CN1190383A Process and apparatus for liquid sludge stabilization
08/12/1998CN1190035A Process for transformation of waste materials
07/1998
07/30/1998DE19702712A1 Continuous, mobile, small-scale sewage purification and composting unit
07/21/1998US5783073 Pollution control apparatus for sewage treatment
07/16/1998WO1998030505A2 Processing of sewage sludge into humus
07/16/1998DE19700434C1 Klärschlammvererdung Sewage sludge
07/15/1998EP0853074A2 Process for the obtention of earth for cultivating flowering plants
07/15/1998CN1187805A Fertilizer and process for production thereof
07/01/1998EP0726886A4 Process for treating waste materials with concentrated acid and the product produced thereby
06/1998
06/11/1998WO1998024729A1 Process and apparatus for utilizing animal excrement
1 ... 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22