| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 01/12/1993 | US5178772 Process for destruction of metal complexes by ultraviolet irradiation |
| 01/12/1993 | US5178770 Method of treating bctmp/ctmp wastewater |
| 01/12/1993 | US5178769 Filter for removing liquid hydrocarbons from water and process of removing gaseous and/or hydrocarbons from water |
| 01/12/1993 | US5178768 Mixed filter bed composition and method of use |
| 01/12/1993 | US5178766 Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same |
| 01/12/1993 | US5178764 Process for cleaning or purifying aqueous n-methylmorpholine-n-oxide solutions |
| 01/12/1993 | US5178758 Biochemical water filter |
| 01/12/1993 | US5178757 Housing with inlet and outlet, nonmagnetic core with passage through which fluid to be treated flows, magnet arrays along core with poles arranged to form magnetic field perpendicular to flow path, flux-carrying means |
| 01/12/1993 | US5178755 UV-enhanced ozone wastewater treatment system |
| 01/12/1993 | US5178734 Water distilling apparatus with vertically stacked components |
| 01/12/1993 | CA1312550C Pervaporation of phenols |
| 01/09/1993 | CA2073216A1 Process for denitrifying water using metallic iron and installation for implementing same |
| 01/07/1993 | WO1993000562A1 Process and device for sludge dewatering |
| 01/07/1993 | WO1993000304A1 Supercritical water oxidation process and apparatus of organics with inorganics |
| 01/07/1993 | WO1993000301A1 Method and device for treating waste water containing organic chlorine compounds |
| 01/07/1993 | WO1993000299A1 Plant for sea water desalinizing using solar energy preferably accompanied by electric power generation |
| 01/07/1993 | WO1993000298A1 Apparatus and method for the purification of shower water |
| 01/07/1993 | WO1993000295A1 Method for the preparation of sulphate-containing basic poly(aluminium chloride) solutions |
| 01/07/1993 | WO1993000291A1 Ozonized water generator for sterilization and ozonotherapy |
| 01/07/1993 | WO1993000178A1 Use of metallic peroxides in bioremediation |
| 01/07/1993 | WO1993000153A1 Process for recovering organics from liquid streams |
| 01/07/1993 | EP0521406A1 Device for the separation of floating and settling matters from waste water contaminated with these matters |
| 01/07/1993 | EP0521308A1 Process for joint treatment of NH3 and/or H2S containing process waste waters as well as sodium sulfide containing caustic soda |
| 01/07/1993 | EP0521216A2 Raw Sewage disposal apparatus |
| 01/07/1993 | DE4121933A1 Dental treatment station waste water separator - has centrifuge drive motor control to prevent slow running and emergency program to increase speeds |
| 01/07/1993 | DE4121932A1 Dental treatment waste water separator - has servo valve opening control to prevent build=up on intermediate store wall |
| 01/07/1993 | DE4121931A1 Separator for dental treatment waste outflow - has fresh water supply to rinse air separating cyclone with safeguard to prevent soiled water entering fresh water supply |
| 01/07/1993 | DE4121181A1 Decontamination of polluted soil, etc. - by washing in fluidised bed, rinsing with water and recycling |
| 01/07/1993 | CA2112573A1 Plant for seawater desalinizing using solar energy preferably accompanied by electric power generation |
| 01/07/1993 | CA2111847A1 Supercritical water oxidation process and apparatus of organics with inorganics |
| 01/07/1993 | CA2110714A1 Apparatus and method for the purification of shower water |
| 01/07/1993 | CA2110484A1 Process for recovering organic components from liquid streams |
| 01/05/1993 | USH1126 Treatment of sodium nitrite-containing boiler wastewater |
| 01/05/1993 | US5176849 Corrosion resistance |
| 01/05/1993 | US5176836 Water Purification, Iodine |
| 01/05/1993 | US5176835 Apparatus for continuous purification of liquids |
| 01/05/1993 | US5176831 Method for herding and/or recovering spilled oil |
| 01/05/1993 | US5176798 System for removal and disposal of minor amounts of organics from contaminated water |
| 01/04/1993 | CA2054420A1 Raw sewage disposal apparatus |
| 12/30/1992 | EP0520921A1 Treatment line for surface water including a security barrier, security barrier and corresponding applications |
| 12/30/1992 | EP0520920A1 Filtration module, especially for water treatment |
| 12/30/1992 | EP0520826A1 Recarbonation of water |
| 12/30/1992 | EP0520793A1 Method of treating waste solution of non-silver halide light-sensitive material |
| 12/30/1992 | EP0520698A2 Method of electroosmotically dehydrating sludge |
| 12/30/1992 | EP0520239A1 Detoxication of vegetation liquors |
| 12/30/1992 | EP0520057A1 Waste water biological treatment device |
| 12/30/1992 | EP0467903B1 Process for the preparation of chlorine-resistant polyester semipermeable membranes |
| 12/30/1992 | EP0232391B1 Device for creating and exploiting a pressure difference and a technical application thereof |
| 12/30/1992 | CN2126233U Nutrition drinker |
| 12/30/1992 | CN2126232U Outer-adapter type magnetizer |
| 12/30/1992 | CN2126231U Multi-functional household fluid forced-magnetizing device |
| 12/30/1992 | CN2126013U Magnetizing kettle |
| 12/30/1992 | CN2125987U Heat preservation magnetic cup |
| 12/30/1992 | CN1067374A Hot spring powder and applications thereof |
| 12/30/1992 | CN1019670B Silver recovering method and equipment from waste water in film developing and printing factory |
| 12/29/1992 | WO1993000611A1 Silver recovery element and process |
| 12/29/1992 | US5175110 Analysis of ions present at low concentrations in solutions containing other ions |
| 12/29/1992 | US5174905 Verticl loop, pump |
| 12/29/1992 | US5174904 Wastewater treatment process |
| 12/29/1992 | US5174903 Acidifying, coagulating with water soluble lignin, flocculating with natural polymer, separating |
| 12/29/1992 | US5174901 Pretreatment with sand and carbon filter; then cationic reverse osmosis membranes |
| 12/29/1992 | US5174879 Apparatus for simultaneous disinfection and removal of nitrate/nitrite ions and other adsorbable chemicals from drinking water |
| 12/29/1992 | US5174877 Suspension of semiconductor particles to adsorb metal pollutants; filtration; reuse |
| 12/29/1992 | US5174859 Freezing effluent stream, separating and recycling frozen product |
| 12/29/1992 | US5174337 Water conditioner rotary valve |
| 12/29/1992 | CA1312042C Water conditioning device |
| 12/27/1992 | WO1993000300A1 Surface water processing installation with safety barrier, safety barrier, and associated applications |
| 12/27/1992 | WO1993000168A1 Programmable water treatment controller for progressive flow systems |
| 12/27/1992 | CA2088602A1 Surface water treatment plant with safety barrier and corresponding applications |
| 12/24/1992 | DE4219343A1 Cationic tannin from conifer bark extract - is crosslinked before cationisation, used in flocculant for purifying waste water |
| 12/24/1992 | DE4120519A1 Reducing loading of waste water esp. from cellulose@ industry - by physico-chemical flocculation before biological purificn. |
| 12/24/1992 | DE4120340A1 Treated sewage water disinfection - by aerating air and ozone, dosing with active carbon@ and applying UV radiation |
| 12/24/1992 | DE4120211A1 Post-treatment of waste water - comprises using polymeric flocculating agents in a form and amt. in which they are self removed from the waste water over a period of time |
| 12/24/1992 | DE4120075A1 Treatment of aq. alkaline developer soln. for offset printing plate - by pptn. of dissolved cpds. esp. silicate with metal ions to reduce vol. of special waste |
| 12/24/1992 | DE4120068A1 Reducing heavy metal content of waste water esp. in dentistry - by use of agent contg. substances absorbing heavy metals by ion-exchange or chemical bonding |
| 12/23/1992 | WO1992022506A1 Process and device for purifying sewage |
| 12/23/1992 | WO1992022503A1 Method and device for treating wastewater |
| 12/23/1992 | WO1992022502A1 Uv lamp transmittance controller |
| 12/23/1992 | WO1992022501A1 Method for removing oil spills using a natural, recyclable absorbent |
| 12/23/1992 | EP0519504A1 Process for purifying resins utilizing bipolar interface |
| 12/23/1992 | EP0519408A1 Granular media regeneration apparatus and process |
| 12/23/1992 | EP0519383A1 Purified amphoteric ion exchange resins and a process for their purification |
| 12/23/1992 | EP0518867A1 Fully automatic current control system for metal depletion cells |
| 12/23/1992 | EP0518866A1 Electrolytic cell for electrolysis of process liquid |
| 12/23/1992 | EP0414858B1 Fluid treatment |
| 12/23/1992 | EP0383765B1 Sewage treatment plant |
| 12/23/1992 | CN2125616U Rotary magnetizing water nozzle |
| 12/23/1992 | CN2125581U Ozone water sterilizer |
| 12/23/1992 | CN2125580U Electronic treating instrument for cool and hot water equipment scale |
| 12/23/1992 | CN2125579U High grade water magnetizing device |
| 12/23/1992 | CN2125578U Electromagnetic sea water desalination device |
| 12/23/1992 | CN2125577U Stepped double hole cavity radiate glow sol gas discharger |
| 12/23/1992 | CN2125344U Magnetization assemblage of multi-funcition temp. keeping container |
| 12/23/1992 | CN2125321U Magnetized cup and pot |
| 12/23/1992 | CN2125320U Multi-function cup |
| 12/23/1992 | CN2125318U Magnetic zisha teapot |
| 12/23/1992 | CN2125317U Mineral water pot |
| 12/23/1992 | CN1067230A Process for treatment of waste water and recycle water containing ammonia from nitrogen fertilizer plant |
| 12/23/1992 | CN1067229A Process for treatment of waste water containing thallium |
| 12/23/1992 | CN1067228A Ion exchange pile of filament resin for treatment of water |