| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
|---|
| 11/23/1988 | EP0291665A2 Process for improving the dehydration of biological sewage sludge |
| 11/22/1988 | US4786413 Aeration, supported microorganisms |
| 11/17/1988 | WO1988008827A1 Device and process for disposal, and in particular hygienic treatment, of the sludge formed in a clarification plant |
| 11/17/1988 | WO1988008826A1 Methane fermentation process for organic materials and device for implementing such process |
| 11/17/1988 | WO1988008825A1 Process for the purification of waste water |
| 11/17/1988 | EP0290986A1 Gene resistant to phosphinothricin |
| 11/17/1988 | EP0290605A1 Method of biological purification of waste water from non-ionogenic surface-active substances |
| 11/17/1988 | EP0290463A1 Treatment system for landfill leachate |
| 11/17/1988 | DE3815309A1 Process, plant and emulsifying substance for disposing of pollutant-containing materials |
| 11/17/1988 | DE3812264A1 Distributor unit for the uniform distribution of liquid and/or bulk material |
| 11/17/1988 | DE3715041A1 Drinking water treatment plants with treatment of the raw water in tanks, reactors and other facilities |
| 11/17/1988 | DE3715023A1 Apparatus for the biological purification of waste water |
| 11/10/1988 | DE3814442A1 Digestion chamber |
| 11/10/1988 | DE3712359A1 Apparatus for introducing a pressurised gas as fine bubbles |
| 11/09/1988 | EP0290361A1 Process and apparatus for the methane fermentation of organic substances |
| 11/09/1988 | EP0289999A1 Process and apparatus for the oxygenation of the lower reaches of stagnant water |
| 11/09/1988 | EP0289908A2 Microorganisms and methods for degrading plant cell walls and complex hydrocarbons |
| 11/09/1988 | EP0289666A1 Cell culture carriers etc. |
| 11/09/1988 | CN88203089U Hollow-blade type oxygen anriched aerator |
| 11/08/1988 | US4783750 Determination of oxygen uptake rate in wastewater treatment plants |
| 11/08/1988 | CA1244562A1 Activated sludge method |
| 11/03/1988 | WO1988008410A1 High-rate biological waste water treatment process using activated sludge recycle |
| 11/03/1988 | WO1988008409A1 Process for improving the efficiency of biological purification of waste water and/or sludge treatment |
| 11/03/1988 | DE3713103A1 Removing phenol cpds. or chloro-aromatics from waste water - by polymerising with phenol-oxidising enzyme and pptn. with polyimine |
| 11/03/1988 | DE3712788A1 Method and apparatus for the treatment of liquid manure |
| 11/02/1988 | EP0289350A2 Biodegradation of halogenated aliphatic hydrocarbons |
| 11/02/1988 | EP0289057A1 Process and apparatus for the treatment of digested sewage sludge |
| 11/02/1988 | EP0288961A1 Method for the biological treatment of nitrogen loaded waste waters |
| 11/02/1988 | EP0288917A1 Use of green algae or extract thereof for the biological desulfonation of sulfonated organic compounds in waste water |
| 11/01/1988 | US4781843 Dye to inhibit photosynthesis |
| 11/01/1988 | US4781836 Hydrolysis, ion exchange, methanogenesis |
| 11/01/1988 | US4781811 Device for feeding gas into a liquid |
| 10/27/1988 | DE3714612A1 Microorganism strain and its use |
| 10/27/1988 | DE3712433A1 Process for biological waste water purification |
| 10/25/1988 | US4780415 Fermentation; biogas formed used for subsequent processing |
| 10/25/1988 | US4780217 Undisturbed natural stratification; pumping, bubble aerating, mixing subsurface returning of deep water |
| 10/25/1988 | US4780208 Mixture with sludge-anaerobic, aerobic cycles |
| 10/25/1988 | US4780207 Method for the anaerobic purification of waste water |
| 10/25/1988 | US4780206 Turbulence control system |
| 10/25/1988 | US4780198 Primary and vertical upper secondary reactors, filter bed, liquid and gas outlets, and agitator; waste water treatment |
| 10/25/1988 | US4780051 Hydraulic turbine aeration apparatus |
| 10/25/1988 | US4779990 Impeller apparatus |
| 10/25/1988 | CA1243785A1 Biological wastewater treating system |
| 10/25/1988 | CA1243471A1 Process for carrying out reactions and mass transfer processes in heterogeneous fluid systems |
| 10/20/1988 | WO1988007978A1 Conditioning and hygienic treatment of sewage sludge and the like |
| 10/20/1988 | WO1988007976A1 Process for decomposing effluents containing lignin and/or chlorinated organic compounds using white rot fungi |
| 10/20/1988 | WO1988007891A1 Mineral substance, process for its manufacture and use thereof |
| 10/20/1988 | DE3728812A1 Mineralischer stoff, verfahren zu seiner herstellung und verwendung desselben Mineral substance, method of the same for its preparation and use |
| 10/20/1988 | DE3711598A1 Microbiological process for denitrification, and device for carrying out the process |
| 10/20/1988 | DE3711161A1 Process for the biological purification of waste water |
| 10/20/1988 | DE3710739A1 Surface aerator |
| 10/19/1988 | EP0287136A1 Granular material for water treatment and process for its production |
| 10/19/1988 | EP0287088A2 Aqueous stream treatment process |
| 10/19/1988 | CN87102633A Method for biological purification of sewage from diethanolamine |
| 10/18/1988 | US4778598 Separation of ash from regenerated adsorbent |
| 10/12/1988 | EP0286630A1 Process for degrading lignin and/or chlorinated organic compounds containing waste water by white-rot fungi |
| 10/12/1988 | EP0286582A2 Installation for biological waste water purification |
| 10/12/1988 | EP0285616A1 Installation for biological purification of waste water |
| 10/12/1988 | CN87102257A Treatment of restaurant sewage |
| 10/12/1988 | CN87102232A Biological treatment with three phase-fluid bed technology |
| 10/06/1988 | DE3710328A1 Fixed bed rotary tube reactor |
| 10/06/1988 | DE3709690A1 Process for the operation of a bioreactor operating anaerobically |
| 10/05/1988 | EP0284976A2 Process for waste water purification with batch feed to the activated sludge tank |
| 10/05/1988 | EP0284754A1 A process for treating polluted soils |
| 10/05/1988 | CN87216657U Shield type biological water pollution treating apparatus |
| 10/04/1988 | US4775650 Chitin dispersed thin films on porous solid substrates; polychlorinated biphenyls and metals removal |
| 10/04/1988 | US4775467 Reactor piping with pump column |
| 09/29/1988 | DE3709269A1 Apparatus for removing organic substances from exhaust air |
| 09/29/1988 | DE3709174A1 Process and apparatus for the biological purification of organically polluted waste waters |
| 09/28/1988 | EP0284602A1 Process and apparatus for ecologically beneficial and hygienic sludge treatment and disposal |
| 09/28/1988 | CN87105996A Method for cleaning sewage containing phosphoratic and for biological removal of phosphorus, apparatus thereof |
| 09/27/1988 | US4774031 Aerator |
| 09/22/1988 | WO1988006941A1 Process for manufacturing fine-structured bodies |
| 09/22/1988 | DE3708123A1 Method for disposing of crude oil-containing wastes |
| 09/22/1988 | DE3707989A1 Waste water treatment plant |
| 09/21/1988 | EP0282750A1 Process and apparatus for cleaning exhaust air or gases |
| 09/21/1988 | CN88105471A Process for treatment of sewage by using artificial water plants in oxidizing ditches |
| 09/21/1988 | CN87107997A Process for contacting gases with liquids |
| 09/20/1988 | US4772396 Method for controlling filamentous organisms in wastewater treatment processes |
| 09/20/1988 | US4772307 Process for preparing an agricultural fertilizer from sewage |
| 09/15/1988 | DE3707021A1 Process and apparatus for denitrifying drinking water |
| 09/14/1988 | EP0282473A1 Process for the continuous biological anaerobic digestion of compounds in waste water |
| 09/14/1988 | EP0282351A2 Microbial cyanide converting enzymes, their production and use |
| 09/08/1988 | DE3706405A1 Verfahren zur abwasserreinigung Process for wastewater treatment |
| 09/07/1988 | WO1988006570A1 Biological dephosphatization and (de)nitrification |
| 09/07/1988 | EP0280750A1 Method and apparatus for treating H2S containing gases |
| 09/07/1988 | EP0280689A1 A method and a device for introducing a gas into a liquid |
| 09/06/1988 | US4769776 Apparatus for measuring the concentration of filamentous microorganisms in a mixture including microorganisms |
| 09/06/1988 | US4769149 Method for the recovery of energy from waste and residues |
| 09/06/1988 | US4769138 Air-driven contact filter |
| 09/06/1988 | CA1241773A1 Process for purifying sewage in plants having adsorption stages |
| 09/06/1988 | CA1241772A1 Hybrid high rate anaerobic treatment process and apparatus |
| 08/31/1988 | CN87107298A Supporter material for immobilization of microorganism |
| 08/30/1988 | US4767537 To generate microscopic bubbles of nitrogen gas which adheres to sludge floc particles |
| 08/30/1988 | US4767500 With blowing, washing and bleaching steps; alkaline sulfite, alcohol solvent, quinone redox catalyst |
| 08/25/1988 | WO1988006144A1 A method for treating polluted material |
| 08/24/1988 | EP0279719A1 Process and apparatus for waste water purification |
| 08/24/1988 | EP0278973A1 Process for the degradation of coal tar constituents by white rot fungi. |
| 08/23/1988 | US4765902 Process for in situ biodegradation of hydrocarbon contaminated soil |
| 08/23/1988 | US4765901 Oxidation of phenolec compounds before anaerobic treatment |