| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 05/02/2000 | US6056883 Method and apparatus to remove inorganic scale from a supercritical water oxidation reactor |
| 05/02/2000 | US6056880 Blending with acid; mixing with calcium, sodium, lithium, and/or potassium oxide or hydroxide; pressurization, heating; applying magnetic field; discharging |
| 04/27/2000 | WO2000023747A2 Co-combustion of waste sludge in municipal waste combustors |
| 04/26/2000 | EP0902767B1 Process for the recycling of residues for the production of portland cement clinker |
| 04/26/2000 | CN1251563A Sulfide evolution inhibitors |
| 04/25/2000 | US6054057 Downflow hydrothermal treatment |
| 04/21/2000 | CA2287052A1 Method and apparatus for the treatment of waste materials comprising a cellulosic material and a nitrogen containing liquid waste material |
| 04/20/2000 | WO2000021893A2 Method for treating sludges and a device for carrying out said method |
| 04/20/2000 | DE19848097A1 Grinding sludge in a filter sack de-watered by an internal expanding plastic bag for disposal without coolant content |
| 04/20/2000 | DE19846564A1 Making wet sludge fit for open site disposal, uses emulsified polyacrylamide |
| 04/20/2000 | DE19846140A1 Thin sludge rendered fit for composting and disposal by admixture of pelletized egg cartons with egg shell |
| 04/19/2000 | EP0877721B1 Method for treating aqueous liquid effluents containing organic and inorganic materials to enable recycling thereof |
| 04/18/2000 | US6051145 Method for handling an effluent in a hydrothermal process |
| 04/18/2000 | CA2053504C Recovery of surfactant from papermaking process |
| 04/13/2000 | DE19845880A1 Moving screen press for removing capillary water from sludge discharged from waste water treatment plant comprises a suction unit |
| 04/13/2000 | DE19654093C2 Verfahren zur Niedertemperaturtrocknung von Feuchtgut und Vorrichtung zur Durchführung des Verfahrens A process for low temperature drying of moist material and apparatus for carrying out the method |
| 04/12/2000 | EP0991597A1 Method of thermically treating a carbonaceous material-comprising aqueous fluid and an apparatus therefor |
| 04/11/2000 | US6047768 Process and apparatus for treating waste |
| 04/11/2000 | CA2022884C A continuously and automatically functioning device for the drainage of sludge, especially of sewage sludge |
| 04/06/2000 | WO2000018690A1 Rapid coagulation-flocculation and sedimentation type waste water treatment method |
| 04/06/2000 | WO1999067174A9 Treatment of waste produced by farm animals raised under confined conditions |
| 04/05/2000 | EP0989967A1 Method and arrangement for composting biodegradable material |
| 04/05/2000 | EP0739313B1 Method for the supercritical water oxidation of organic compounds |
| 04/05/2000 | CN1249278A Equipment for treating excrement and urine from lavatory by drying method |
| 04/05/2000 | CN1249276A Process for treating sewage and mud with microbes |
| 04/04/2000 | CA2151729C Method and device for treating sludge |
| 04/01/2000 | CA2249945A1 Two-stage separation process |
| 03/30/2000 | WO2000017114A1 Method for stabilising and solidifying sludge coming from purification plants |
| 03/30/2000 | WO2000017112A1 Method of dewatering difficult sludges |
| 03/30/2000 | WO2000016970A1 Continuous squeeze-dewatering device |
| 03/29/2000 | EP0988900A1 Fermentation treating equipment for organic waste |
| 03/29/2000 | CN1248628A Marsh gas fermentation method |
| 03/28/2000 | US6042732 Starch/cationic polymer combinations as coagulants for the mining industry |
| 03/22/2000 | EP0986520A1 Sludge silo |
| 03/22/2000 | CN1248173A Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment |
| 03/21/2000 | US6039867 Device for continuous disintegration of activated sludge |
| 03/16/2000 | WO2000014286A1 Method for heat-treating recyclings containing oil and iron oxide |
| 03/16/2000 | WO2000014186A1 Method and plant for composting and drying organic material |
| 03/16/2000 | WO2000014020A1 Waste treatment by adding at least an alkaline reagent |
| 03/16/2000 | WO2000013811A1 Apparatus and process for thermal treatment of waste |
| 03/16/2000 | CA2339014A1 Method for heat-treating recyclings containing oil and iron oxide |
| 03/15/2000 | EP0985641A2 Process for treating waste water containing cutting oil |
| 03/15/2000 | EP0984906A1 Process for the cold transformation of municipal refuses and/or sludge into inert materials, plant for carrying out said process and products obtained |
| 03/15/2000 | CN2368843Y High performance energy saving electric methane tank |
| 03/14/2000 | US6037406 High standard viscosity quaternary Mannich microemulsions |
| 03/14/2000 | US6036881 Stabilized liquid lime dispersion for sewage treatment |
| 03/08/2000 | EP0790851B1 Activated sludge degassing process and device |
| 03/08/2000 | CN2367608Y Apparatus for treatment of alcohol waste liquid |
| 03/08/2000 | CN1246449A Intermittent treating equipment of floater and oily sludge |
| 03/07/2000 | US6033571 Activated sludge treatment method and apparatus |
| 03/02/2000 | WO2000010927A1 Method and installations for treating effluents in small communities |
| 03/01/2000 | EP0982058A1 Apparatus for de-watering sludge and similar substances |
| 02/29/2000 | US6030587 Method and apparatus for waste destruction using supercritical water oxidation |
| 02/29/2000 | US6030538 Applying a non-arcing pulsed electric field to rupture cell membranes and release intracellular fluid in city plant and animal sewage; electroporating; separating solids; efficiency; disposal |
| 02/29/2000 | US6030467 Contacting solid which contains tetraalkyllead and bromoethane with solution that has hydrophile lipophile balance value and concentration sufficient to form an emulsion, separating, recovering the emulsion; motor fuel antiknock compounds |
| 02/24/2000 | WO2000009454A1 Sludge dehydrating device |
| 02/24/2000 | DE19837723A1 Verfahren zur Reinigung von Abwässern aus dem Hock-Verfahren A process for purifying waste water from the Hock process |
| 02/24/2000 | DE19836268A1 Drying assembly for small quantities of sludge consists of container with transparent cover with solar-panel powered sludge mixer |
| 02/23/2000 | EP0980846A1 Process for the purification of waste water produced in the Hock process |
| 02/23/2000 | EP0980340A2 Method for reducing moisture content |
| 02/23/2000 | CN1049640C Auto-controller for dewatering sludge |
| 02/22/2000 | US6027543 Method for removing a heavy metal from sludge |
| 02/17/2000 | WO2000007947A1 Method for producing a sulphur-free liquid organic fuel |
| 02/17/2000 | WO2000007946A1 Method of liquefying microorganisms derived from biological wastewater treatment processes |
| 02/16/2000 | EP0979215A1 Dewatering of sewage sludge |
| 02/16/2000 | EP0979214A1 Device for dewatering a slurry |
| 02/16/2000 | CN2364033Y Gas storage tank for methane generating by fermentation |
| 02/16/2000 | CN1244503A Urban excrement and organic garbage treater |
| 02/15/2000 | US6025432 High standard viscosity quaternary mannich microemulsions |
| 02/15/2000 | US6025426 Copolymerizing acrylamide and methyl chloride quaternary compound in salt solution |
| 02/15/2000 | CA2139532C Sludge dehydrating press and method for treating sludge |
| 02/09/2000 | CN1244179A Process and apparatus for utilizing animal excrement |
| 02/03/2000 | WO2000005177A1 Process for the treatment of waste water containing specific components, e.g. ammonia |
| 02/03/2000 | WO2000005004A1 Hazardous substance-fixing material |
| 02/02/2000 | EP0976436A1 Wastewater treating agent, method for wastewater treatment, sludge dehydrant, and method for sludge treatment |
| 02/02/2000 | CN2361627Y 沼气发生器 Biogas Generator |
| 02/02/2000 | CN1243046A Oil-sand separating and treating apparatus |
| 01/27/2000 | WO2000003782A1 Endless band filter with pressure means and process for filtering |
| 01/26/2000 | EP0946435A4 Sludge dewatering control system |
| 01/26/2000 | CN2360389Y Water quality and mud improvement processor for breeding pool |
| 01/25/2000 | US6018091 Methods for thermally degrading unwanted substances using particular metal compositions |
| 01/25/2000 | US6017595 Structural building materials or articles obtained from a composite including polymeric materials, solid waste material, and reinforcing materials |
| 01/25/2000 | US6017460 Heating and reaction system and method using recycle reactor |
| 01/25/2000 | CA2160465C Process and apparatus for the treatment of waste water |
| 01/20/2000 | WO2000003083A1 A process for concentrating soluble and colloidal substances in process waters |
| 01/20/2000 | WO2000002823A1 Method for treating sludge |
| 01/20/2000 | WO2000002822A1 Method and apparatus for processing a watery substance with zeolites |
| 01/20/2000 | WO2000002821A1 Device for transforming chemical structures in a fluid comprising a solvent and salts by ultrasonic action |
| 01/20/2000 | WO2000002820A1 Method for transforming chemical structures in a fluid under pressure and in high temperature and implementing device |
| 01/20/2000 | WO2000002441A1 Improved method for separating liquid manure into a solid and a filtrate |
| 01/20/2000 | CA2337411A1 A process for concentrating soluble and colloidal substances in process waters |
| 01/20/2000 | CA2337272A1 Method for transforming chemical structures in a fluid under pressure and in high temperature and implementing device |
| 01/20/2000 | CA2337268A1 Device for transforming chemical structures in a fluid comprising a solvent and salts by ultrasonic action |
| 01/13/2000 | DE19830366A1 Process for binding free water, e.g. for dewatering sewage sludge, contents of chemical toilets, waste salt solutions or pig slurry |
| 01/12/2000 | EP0970922A2 Method for methane fermentation of organic waste |
| 01/12/2000 | EP0934232A4 Process for disinfecting organic waste sludge |
| 01/12/2000 | CN2358070Y Aertion septic-tank device |
| 01/11/2000 | US6013708 Precipitating in water solution comprising at least one kosmotropic salt, and at least one anionic organic salt |
| 01/11/2000 | US6013183 Method of liquefying microorganisms derived from biological wastewater treatment processes |
| 01/11/2000 | US6013177 Silo and process for decontaminating and composting sewage sludge |