WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

C02F　TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F 9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)

C02F 1/00 Treatment of water, waste water, or sewage (C02F 3/00 to C02F 9/00 take precedence)

C02F 1/001 ・{Processes for the treatment of water whereby the filtration technique is of importance (C02F 1/44 takes precedence; construction of filters in general B01D 24/00 to B01D 41/00)}

C02F 1/002 ・・{using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear (C02F 1/003 takes precedence)}

C02F 1/003 ・・{using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices (C02F 9/005 takes precedence)}

C02F 1/004 ・・{using large scale industrial sized filters}

C02F 1/005 ・{Systems or processes based on supernatural or anthroposophic principles, cosmic or terrestrial radiation, geomancy or rhabdomancy}

C02F 1/006 ・{Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks (for settling tanks B01D 21/24)}

C02F 1/008 ・{Control or steering systems not provided for elsewhere in subclass C02F}

C02F 1/02 ・by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D)

C02F 1/025 ・・{Thermal hydrolysis}

C02F 1/04 ・・by distillation or evaporation

C02F 1/041 ・・・{by means of vapour compression}

C02F 1/042 ・・・{Prevention of deposits}

C02F 1/043 ・・・{Details}

C02F 1/045 ・・・{for obtaining ultra-pure water}

C02F 1/046 ・・・{under vacuum produced by a barometric column}

C02F 1/047 ・・・{using eolic energy}

C02F 1/048 ・・・{Purification of waste water by evaporation}

C02F 1/06 ・・・Flash evaporation

C02F 1/08 ・・・Thin film evaporation

C02F 1/10 ・・・by direct contact with a particulate solid or with a fluid, as a heat transfer medium

C02F 1/12 ・・・・Spray evaporation

C02F 1/14 ・・・using solar energy

C02F 1/16 ・・・using waste heat from other processes

C02F 1/18 ・・・Transportable devices to obtain potable water

C02F 1/20 ・by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D 19/00; arrangement of degassing apparatus in boiler feed supply F22D)

C02F 1/22 ・by freezing

C02F 1/24 ・by flotation (C02F 1/465 takes precedence)

C02F 1/26 ・by extraction

C02F 1/265 ・・{Desalination}

C02F 1/28 ・by sorption (using ion-exchange C02F 1/42; sorbent compositions B01J)

C02F 1/281 ・・{using inorganic sorbents}

C02F 1/283 ・・{using coal, charred products, or inorganic mixtures containing them}

C02F 1/285 ・・{using synthetic organic sorbents}

C02F 1/286 ・・{using natural organic sorbents or derivatives thereof}

C02F 1/288 ・・{using composite sorbents, e.g. coated, impregnated, multi-layered}

C02F 1/30 ・by irradiation

C02F 1/302 ・・{with microwaves}

C02F 1/305 ・・{with electrons}

C02F 1/307 ・・{with X-rays or gamma radiation}

C02F 1/32 ・・with ultra-violet light

C02F 1/325 ・・・{Irradiation devices or lamp constructions}

C02F 1/34 ・with mechanical oscillations

C02F 1/36 ・・ultrasonic vibrations

C02F 1/38 ・by centrifugal separation

C02F 1/385 ・・{by centrifuging suspensions (centrifuges B04B)}

C02F 1/40 ・Devices for separating or removing fatty or oily substances or similar floating material (cleaning or keeping clear the surface of open water from oil or like materials E02B 15/04; devices in sewers for separating liquid or solid substances from sewage E03F 5/14, e.g. for use in drains leading to the sewer E03F 5/16)

C02F 1/42 ・by ion-exchange (ion-exchange in general B01J)

C02F 1/44 ・by dialysis, osmosis or reverse osmosis {(general membrane separation processes B01D 61/00, membrane modules B01D 63/00, electrodialysis C02F 1/4693, combination of membrane modules and bioreactors C02F 3/1268)}

C02F 1/441 ・・{by reverse osmosis}

C02F 1/442 ・・{by nanofiltration}

C02F 1/444 ・・{by ultrafiltration or microfiltration}

C02F 1/445 ・・{by forward osmosis}

C02F 1/447 ・・{by membrane distillation (distillation and evaporation without the use of membranes C02F 1/04)}

C02F 1/448 ・・{by pervaporation}

C02F 1/46 ・by electrochemical methods

C02F 1/4602 ・・{for prevention or elimination of deposits}

C02F 1/4604 ・・{for desalination of seawater or brackish water}

C02F 1/4606 ・・{for producing oligodynamic substances to desinfect the water}

C02F 1/4608 ・・{using electrical discharges}

C02F 1/461 ・・by electrolysis

C02F 1/46104 ・・・{Devices therefor; Their operating or servicing}

C02F 1/46109 ・・・・{Electrodes}

C02F 1/46114 ・・・・・{Electrodes in particulate form or with conductive and/or non conductive particules between them}

C02F 1/46176 ・・・・{Galvanic cells}

C02F 1/4618 ・・・・{for producing "ionised" acidic or basic water}

C02F 1/463 ・・・by electrocoagulation

C02F 1/465 ・・・by electroflotation

C02F 1/467 ・・・by electrochemical desinfection; {by electrooxydation or by electroreduction}

C02F 1/4672 ・・・・{by electrooxydation}

C02F 1/4674 ・・・・・{with halogen or compound of halogens, e.g. chlorine, bromine}

C02F 1/4676 ・・・・{by electroreduction}

C02F 1/4678 ・・・・・{of metals}

C02F 1/469 ・・by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis

C02F 1/4691 ・・・{Capacitive deionisation}

C02F 1/4693 ・・・{electrodialysis}

C02F 1/4695 ・・・・{electrodeionisation}

C02F 1/4696 ・・・{electrophoresis}

C02F 1/4698 ・・・{electro-osmosis}

C02F 1/48 ・with magnetic or electric fields (C02F 1/46 takes precedence)

C02F 1/481 ・・{using permanent magnets}

C02F 1/482 ・・・{located on the outer wall of the treatment device, i.e. not in contact with the liquid to be treated, e.g. detachable}

C02F 1/484 ・・{using electromagnets}

C02F 1/485 ・・・{located on the outer wall of the treatment device, i.e. not in contact with the liquid to be treated, e.g. detachable}

C02F 1/487 ・・[N: using high frequency electromagnetic fields, e.g. pulsed electromagnetic fields

C02F 1/488 ・・{for separation of magnetic materials, e.g. magnetic flocculation}

C02F 1/50 ・by addition or application of a germicide or by oligodynamic treatment ({C02F 1/46H, C02F 1/467, C02F 1/76 take precedence})

C02F 1/505 ・・{by oligodynamic treatment}

C02F 1/52 ・by flocculation or precipitation of suspended impurities {(C02F 1/463 takes precedence)}

C02F 1/5209 ・・{Regulation methods for flocculation or precipitation}

C02F 1/5227 ・・{Processes for facilitating the dissolution of solid flocculants in water}

C02F 1/5236 ・・{using inorganic agents}

C02F 1/5245 ・・・{using basic salts, e.g. of aluminium and iron}

C02F 1/5254 ・・・{using magnesium compounds and phosphoric acid for removing ammonia}

C02F 1/5263 ・・{using natural chemical compounds}

C02F 1/5272 ・・{using specific organic precipitants}

C02F 1/5281 ・・{Installations for water purification using chemical agents}

C02F 1/529 ・・{Processes or devices for preparing lime water}

C02F 1/54 ・・using organic material

C02F 1/542 ・・・{Phosphorus compounds}

C02F 1/545 ・・・{Silicon compounds}

C02F 1/547 ・・・{Tensides}

C02F 1/56 ・・・Macromolecular compounds

C02F 1/58 ・by removing specified dissolved compounds (using ion-exchange C02F 1/42; softening water C02F 5/00)

C02F 1/583 ・・{by removing fluoride or fluorine compounds}

C02F 1/586 ・・{by removing ammoniacal nitrogen (for biological methods C02F 3/00)}

C02F 1/60 ・・Silicon compounds {(C02F 1/583 takes precedence)}

C02F 1/62 ・・Heavy metal compounds

C02F 1/64 ・・・of iron or manganese

C02F 1/645 ・・・・{Devices for iron precipitation and treatment by air}

C02F 1/66 ・by neutralisation; pH adjustment (for degassing C02F 1/20; using ion-exchange C02F 1/42; for flocculation or precipitation of suspended impurities C02F 1/52; for removing dissolved compounds C02F 1/58)

C02F 1/68 ・by addition of specified substances, e.g. trace elements, for ameliorating potable water (medicinal water A61K)

C02F 1/681 ・・{by addition of solid materials for removing an oily layer on water}

C02F 1/682 ・・{by addition of chemical compounds for dispersing an oily layer on water}

C02F 1/683 ・・{by addition of complex-forming compounds}

C02F 1/685 ・・{Devices for dosing the additives}

C02F 1/686 ・・・{Devices for dosing liquid additives}

C02F 1/687 ・・・{Devices for dosing solid compounds}

C02F 1/688 ・・・{Devices in which the water progressively dissolves a solid compound}

C02F 1/70 ・by reduction {(C02F 1/4676 takes precedence)}

C02F 1/705 ・・{Reduction by metals}

C02F 1/72 ・by oxidation {(C02F 1/4672 takes precedence)}

C02F 1/722 ・・{Oxidation by peroxides}

C02F 1/725 ・・{by catalytic oxidation}

C02F 1/727 ・・{using pure oxygen or oxygen rich gas}

C02F 1/74 ・・with air (aeration of stretches of water C02F 7/00)

C02F 1/76 ・・with halogens or compounds of halogens {(C02F 1/4674 takes precedence)}

C02F 1/763 ・・・{Devices for the addition of such compounds in gaseous form}

C02F 1/766 ・・・{by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine}

C02F 1/78 ・・with ozone {(C02F 1/4672 takes precedence)}

C02F 3/00 Biological treatment of water, waste water, or sewage {(C02F 1/006 takes precedence)}

C02F 3/005 ・{Combined electrochemical biological processes (aeration by electrolytically produced oxygen bubbles C02F 3/202)}

C02F 3/006 ・{Regulation methods for biological treatment}

C02F 3/02 ・Aerobic processes

C02F 3/025 ・・{Biological purification using sources of oxygen other than air, oxygen or ozone}

C02F 3/04 ・・using trickle filters

C02F 3/043 ・・・{Devices for distributing water over trickle filters}

C02F 3/046 ・・・{Soil filtration}

C02F 3/06 ・・using submerged filters

C02F 3/08 ・・using moving contact bodies

C02F 3/082 ・・・{Rotating biological contactors}

C02F 3/085 ・・・{Fluidized beds}

C02F 3/087 ・・・・{Floating beds with contact bodies having a lower density than water}

C02F 3/10 ・・Packings; Fillings; Grids (packing elements in general B01J 19/30, B01J 19/32)

C02F 3/101 ・・・{Arranged-type packing, e.g. stacks, arrays}

C02F 3/102 ・・・{Permeable membranes}

C02F 3/103 ・・・{Textile-type packing}

C02F 3/104 ・・・{Granular carriers}

C02F 3/105 ・・・{Characterized by the chemical composition}

C02F 3/106 ・・・・{Carbonaceous materials}

C02F 3/107 ・・・・{Inorganic materials, e.g. sand, silicates}

C02F 3/108 ・・・・{Immobilising gels, polymers or the like}

C02F 3/109 ・・・{Characterized by the shape (C02F 3/104 takes precedence)}

C02F 3/12 ・・Activated sludge processes

C02F 3/1205 ・・・{Particular type of activated sludge processes}

C02F 3/121 ・・・・{Multistep treatment}

C02F 3/1215 ・・・・{Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates}

C02F 3/1221 ・・・・{comprising treatment of the recirculated sludge}

C02F 3/1226 ・・・・{comprising an absorbent material suspended in the mixed liquor}

C02F 3/1231 ・・・・{Treatments of toxic sewage}

C02F 3/1236 ・・・{Particular type of activated sludge installations}

C02F 3/1242 ・・・・{Small compact installations for use in homes, apartment blocks, hotels or the like}

C02F 3/1247 ・・・・・{comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors}

C02F 3/1252 ・・・・{Cylindrical tanks with horizontal axis}

C02F 3/1257 ・・・・{Oxidation ditches}

C02F 3/1263 ・・・・{Sequencing batch reactors (SBR)}

C02F 3/1268 ・・・・{Membrane bioreactor systems}

C02F 3/1273 ・・・・・{Submerged membrane bioreactors}

C02F 3/1278 ・・・{Provisions for mixing or aeration of the mixed liquor}

C02F 3/1284 ・・・・{Mixing devices}

C02F 3/1289 ・・・・{Aeration by saturation under super-atmospheric pressure}

C02F 3/1294 ・・・・{"Venturi" aeration means}

C02F 3/14 ・・・using surface aeration

C02F 3/145 ・・・・{Protection against aerosols}

C02F 3/16 ・・・・the aerator having a vertical axis

C02F 3/165 ・・・・・{using vertical aeration channels}

C02F 3/18 ・・・・the aerator having a horizontal axis

C02F 3/20 ・・・using diffusers

C02F 3/201 ・・・・{Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses}

C02F 3/202 ・・・・{Aeration by electrolytically produced oxygen bubbles}

C02F 3/203 ・・・・{Swing diffusers}

C02F 3/205 ・・・・{Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors}

C02F 3/206 ・・・・・{with helical screw impellers}

C02F 3/207 ・・・・・{with axial thrust propellers}

C02F 3/208 ・・・・{Membrane aeration (C02F 3/201 takes precedence)}

C02F 3/22 ・・・using circulation pipes

C02F 3/223 ・・・・{using "air-lift"}

C02F 3/226 ・・・・{"Deep shaft" processes}

C02F 3/24 ・・・using free-fall aeration or spraying

C02F 3/26 ・・・using pure oxygen or oxygen-rich gas

C02F 3/28 ・Anaerobic digestion processes

C02F 3/2806 ・・{Anaerobic processes using solid supports for micro-organisms}

C02F 3/2813 ・・{using anaerobic contact processes}

C02F 3/282 ・・{using anaerobic sequencing batch reactors}

C02F 3/2826 ・・{using anaerobic filters}

C02F 3/2833 ・・{using fluidized bed reactors}

C02F 3/284 ・・{using anaerobic baffled reactors}

C02F 3/2846 ・・{using upflow anaerobic sludge blanket (UASB) reactors}

C02F 3/2853 ・・{using anaerobic membrane bioreactors}

C02F 3/286 ・・{including two or more steps}

C02F 3/2866 ・・{Particular arrangements for anaerobic reactors}

C02F 3/2873 ・・・{with internal draft tube circulation}

C02F 3/288 ・・・{comprising septic tanks combined with a filter}

C02F 3/2886 ・・・{Two story combinations of the Imhoff tank type}

C02F 3/2893 ・・・{with biogas recycling}

C02F 3/30 ・Aerobic and anaerobic processes

C02F 3/301 ・・{Aerobic and anaerobic treatment in the same reactor}

C02F 3/302 ・・{Nitrification and denitrification treatment (C02F 3/308 takes precedence)}

C02F 3/303 ・・・{characterised by the nitrification}

C02F 3/305 ・・・{characterised by the denitrification}

C02F 3/306 ・・・・{Denitrification of water in soil}

C02F 3/307 ・・・{characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process}

C02F 3/308 ・・{Biological phosphorus removal}

C02F 3/32 ・characterised by the animals or plants used, e.g. algae

C02F 3/322 ・・{use of algae}

C02F 3/325 ・・・{as symbiotic combination of algae and bacteria}

C02F 3/327 ・・{characterised by animals and plants}

C02F 3/34 ・characterised by the micro-organisms used

C02F 3/341 ・・{Consortia of bacteria}

C02F 3/342 ・・{characterised by the enzymes used}

C02F 3/343 ・・{for digestion of grease, fat, oil}

C02F 3/344 ・・{for digestion of mineral oil}

C02F 3/345 ・・{for biological oxidation or reduction of sulfur compounds}

C02F 3/346 ・・{Iron bacteria}

C02F 3/347 ・・{Use of yeasts or fungi (C02F 3/322 takes precedence)}

C02F 3/348 ・・{characterised by the way or the form in which the microorganisms are added or dosed }

C02F 5/00 Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F 1/42)

C02F 5/02 ・Softening water by precipitation of the hardness

C02F 5/025 ・・{Hot-water softening devices}

C02F 5/04 ・・using phosphates (C02F 5/06 takes precedence)

C02F 5/06 ・・using calcium compounds

C02F 5/08 ・Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

C02F 5/083 ・・{Mineral agents}

C02F 5/086 ・・{Condensed phosphates}

C02F 5/10 ・・using organic substances

C02F 5/105 ・・・{combined with inorganic substances}

C02F 5/12 ・・・containing nitrogen (C02F 5/14 takes precedence)

C02F 5/125 ・・・・{combined with inorganic substances}

C02F 5/14 ・・・containing phosphorus

C02F 5/145 ・・・・{combined with inorganic substances}

C02F 7/00 Aeration of stretches of water

C02F 9/00 Multistage treatment of water, waste water, or sewage

C02F 9/005 ・{Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems (single-stage processes in combination with filtration techniques C02F 1/002 or C02F 1/003)}

C02F 11/00 Treatment of sludge; Devices therefor

C02F 11/002 ・{Sludge treatment using liquids immiscible with water}

C02F 11/004 ・{Sludge detoxification}

C02F 11/006 ・{Electrochemical treatment, e.g. electro-oxidation or electro-osmosis}

C02F 11/008 ・{Sludge treatment by fixation or solidification}

C02F 11/02 ・Biological treatment

C02F 11/04 ・・Anaerobic treatment; Production of methane by such processes

C02F 11/06 ・by oxidation (incinerators for burning waste liquors, e.g. sulfite liquor from paper-making plant F23G 7/04)

C02F 11/08 ・・Wet air oxidation

C02F 11/083 ・・・{using deep well reactors}

C02F 11/086 ・・・{in the supercritical state}

C02F 11/10 ・by pyrolysis

C02F 11/12 ・by de-watering, drying, or thickening

C02F 11/121 ・・{Processes for mechanical dehydration of sludge, e.g. by filters}

C02F 11/122 ・・・using press filters (C02F 11/123 takes precedence)

C02F 11/123 ・・・using belt or band filters

C02F 11/125 ・・・using screw filters

C02F 11/126 ・・・using drum filters

C02F 11/127 ・・・by centrifugation

C02F 11/128 ・・・Batch processes

C02F 11/14 ・・with addition of chemical agents

C02F 11/16 ・・using drying or composting beds

C02F 11/18 ・by thermal conditioning (by pyrolysis C02F 11/10)

C02F 11/185 ・・{by pasteurisation}

C02F 11/20 ・・by freezing

C02F 2001/00 Treatment of water, waste water, or sewage (C02F 3/00 to C02F 9/00 take precedence)

C02F 2001/007 ・Processes including a sedimentation step

C02F 2001/42 ・by ion-exchange (ion-exchange in general B01J)

C02F 2001/422 ・・using anionic exchangers

C02F 2001/425 ・・using cation exchangers

C02F 2001/427 ・・using mixed beds

C02F 2001/46 ・by electrochemical methods

C02F 2001/461 ・・by electrolysis

C02F 2001/46104 ・・・{Devices therefor; Their operating or servicing}

C02F 2001/46109 ・・・・{Electrodes}

C02F 2001/46119 ・・・・・Cleaning the electrodes

C02F 2001/46123 ・・・・・Movable electrodes

C02F 2001/46128 ・・・・・Bipolar electrodes

C02F 2001/46133 ・・・・・characterised by the material

C02F 2001/46138 ・・・・・・Electrodes comprising a substrate and a coating

C02F 2001/46142 ・・・・・・・Catalytic coating

C02F 2001/46147 ・・・・・・・Diamond coating

C02F 2001/46152 ・・・・・characterised by the shape or form (electrodes in particulate form or with conductive or non-conductive particles between them M02F 1/462B2B)

C02F 2001/46157 ・・・・・・Perforated or foraminous electrodes

C02F 2001/46161 ・・・・・・・Porous electrodes

C02F 2001/46166 ・・・・・・・・Gas diffusion electrodes

C02F 2001/46171 ・・・・・・Cylindrical or tubular shaped

C02F 2001/4618 ・・・・{for producing "ionised" acidic or basic water}

C02F 2001/46185 ・・・・・only anodic or acidic water, e.g. for oxidizing or sterilizing

C02F 2001/4619 ・・・・・only cathodic or alkaline water, e.g. for reducing

C02F 2001/46195 ・・・・・characterised by the oxidation reduction potential (ORP)

C02F 2001/52 ・by flocculation or precipitation of suspended impurities {(C02F 1/463 takes precedence)}

C02F 2001/5218 ・・Crystallization

C02F 2003/00 Biological treatment of water, waste water, or sewage {(C02F 1/006 takes precedence)}

C02F 2003/001 ・using granular carriers or supports for the microorganisms

C02F 2003/003 ・・using activated carbon or the like

C02F 2003/008 ・using anaerobic baffled reactors

C02F 2101/00 Nature of the contaminant

C02F 2101/003 ・Explosive compounds, e.g. TNT

C02F 2101/006 ・Radioactive compounds

C02F 2101/10 ・Inorganic compounds

C02F 2101/101 ・・Sulfur compounds

C02F 2101/103 ・・Arsenic compounds

C02F 2101/105 ・・Phosphorus compounds

C02F 2101/106 ・・Selenium compounds

C02F 2101/108 ・・Boron compounds

C02F 2101/12 ・・Halogens or halogen-containing compounds

C02F 2101/14 ・・・Fluorine or fluorine-containing compounds

C02F 2101/16 ・・Nitrogen compounds, e.g. ammonia

C02F 2101/163 ・・・Nitrates

C02F 2101/166 ・・・Nitrites

C02F 2101/18 ・・・Cyanides

C02F 2101/20 ・・Heavy metals or heavy metal compounds

C02F 2101/203 ・・・Iron or iron compound

C02F 2101/206 ・・・Manganese or manganese compounds

C02F 2101/22 ・・・Chromium or chromium compounds, e.g. chromates

C02F 2101/30 ・Organic compounds

C02F 2101/301 ・・Detergents, surfactants

C02F 2101/303 ・・Complexing agents

C02F 2101/305 ・・Endocrine disruptive agents

C02F 2101/306 ・・Pesticides

C02F 2101/308 ・・Dyes; Colorants; Fluorescent agents

C02F 2101/32 ・・Hydrocarbons, e.g. oil

C02F 2101/322 ・・・Volatile compounds, e.g. benzene

C02F 2101/325 ・・・Emulsions

C02F 2101/327 ・・・Polyaromatic Hydrocarbons (PAH's)

C02F 2101/34 ・・containing oxygen

C02F 2101/345 ・・・Phenols

C02F 2101/36 ・・containing halogen

C02F 2101/363 ・・・PCB`s; PCP`s

C02F 2101/366 ・・・Dioxine; Furan

C02F 2101/38 ・・containing nitrogen

C02F 2101/40 ・・containing sulfur

C02F 2103/00 Nature of the water, waste water, sewage or sludge to be treated

C02F 2103/001 ・Runoff or storm water

C02F 2103/002 ・Grey water, e.g. from clothes washers, showers or dishwashers

C02F 2103/003 ・Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms

C02F 2103/005 ・Black water originating from toilets

C02F 2103/006 ・Dental effluents

C02F 2103/007 ・Contaminated open waterways, rivers, lakes or ponds

C02F 2103/008 ・Originating from marine vessels, ships and boats, e.g. bilge water or ballast water

C02F 2103/02 ・Non-contaminated water, e.g. for industrial water supply

C02F 2103/023 ・・Water in cooling circuits

C02F 2103/026 ・・Treating water for medical or cosmetic purposes

C02F 2103/04 ・・For obtaining ultra-pure water

C02F 2103/06 ・Contaminated groundwater or leachate

C02F 2103/08 ・Seawater, e.g. for desalination

C02F 2103/10 ・from quarries or from mining activities

C02F 2103/12 ・from the silicate or ceramic industries, e.g. waste waters from cement or glass factories

C02F 2103/14 ・Paint wastes

C02F 2103/16 ・from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes

C02F 2103/18 ・from the purification of gaseous effluents

C02F 2103/20 ・from animal husbandry

C02F 2103/22 ・from the processing of animals, e.g. poultry, fish, or parts thereof

C02F 2103/24 ・・from tanneries

C02F 2103/26 ・from the processing of plants or parts thereof

C02F 2103/28 ・・from the paper or cellulose industry

C02F 2103/30 ・from the textile industry

C02F 2103/32 ・from the food or foodstuff industry, e.g. brewery waste waters

C02F 2103/322 ・・from vegetable oil production, e.g. olive oil production

C02F 2103/325 ・・from processes relating to the production of wine products

C02F 2103/327 ・・from processes relating to the production of dairy products

C02F 2103/34 ・from industrial activities not provided for in groups C02F 2103/12 to C02F 2103/32

C02F 2103/343 ・・from the pharmaceutical industry, e.g. containing antibiotics

C02F 2103/346 ・・from semiconductor processing, e.g. waste water from polishing of wafers

C02F 2103/36 ・・from the manufacture of organic compounds

C02F 2103/365 ・・・from petrochemical industry (e.g. refineries)

C02F 2103/38 ・・・Polymers

C02F 2103/40 ・・from the manufacture or use of photosensitive materials

C02F 2103/42 ・from bathing facilities, e.g. swimming pools

C02F 2103/44 ・from vehicle washing facilities

C02F 2201/00 Apparatus for treatment of water, waste water or sewage

C02F 2201/001 ・Build in apparatus for autonomous on board water supply and wastewater treatment (e.g. for aircrafts, cruiseships, oil drilling platforms, railway trains, space stations)

C02F 2201/002 ・Construction details of the apparatus

C02F 2201/003 ・・Coaxial constructions, e.g. a cartridge located coaxially within another

C02F 2201/004 ・・Seals, connections

C02F 2201/005 ・・Valves

C02F 2201/006 ・・Cartridges

C02F 2201/007 ・・Modular design

C02F 2201/008 ・Mobile apparatus and plants, e.g. mounted on a vehicle (for biological treatment C02F 2203/008)

C02F 2201/009 ・Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells (for electrolysis apparatus C02F 2201/46165)

C02F 2201/32 ・Details relating to UV-irradiation devices

C02F 2201/322 ・・Lamp arrangement

C02F 2201/3221 ・・・Lamps suspended above a water surface or pipe

C02F 2201/3222 ・・・Units using UV-light emitting diodes (LED)

C02F 2201/3223 ・・・Single elongated lamp located on the central axis of a turbular reactor

C02F 2201/3224 ・・・Units using UV-light guiding optical fibers

C02F 2201/3225 ・・・Lamps immersed in an open channel, containing the liquid to be treated

C02F 2201/3226 ・・・Units using UV-light emitting lasers

C02F 2201/3227 ・・・Units with two or more lamps

C02F 2201/3228 ・・・Units having reflectors, e.g. coatings, baffles, plates, mirrors

C02F 2201/324 ・・Lamp cleaning installations, e.g. brushes

C02F 2201/326 ・・Lamp control systems

C02F 2201/328 ・・Having flow diverters (baffles)

C02F 2201/46 ・Apparatus for electrochemical processes

C02F 2201/461 ・・Electrolysis apparatus

C02F 2201/46105 ・・・Details relating to the electrolytic devices

C02F 2201/4611 ・・・・Fluid flow

C02F 2201/46115 ・・・・Electrolytic cell with membranes or diaphragms

C02F 2201/4612 ・・・・Controlling or monitoring

C02F 2201/46125 ・・・・・Electrical variables

C02F 2201/4613 ・・・・・・Inversing polarity

C02F 2201/46135 ・・・・・・Voltage

C02F 2201/4614 ・・・・・・Current

C02F 2201/46145 ・・・・・Fluid flow

C02F 2201/4615 ・・・・・Time

C02F 2201/46155 ・・・・Heating or cooling

C02F 2201/4616 ・・・・Power supply

C02F 2201/46165 ・・・・・Special power supply, e.g. solar energy or batteries

C02F 2201/4617 ・・・・・DC only

C02F 2201/46175 ・・・・・Electrical pulses

C02F 2201/4618 ・・・・Supplying or removing reactants or electrolyte

C02F 2201/46185 ・・・・・Recycling the cathodic or anodic feed

C02F 2201/4619 ・・・・Supplying gas to the electrolyte (gas diffusion electrodes C02F 2001/46166)

C02F 2201/46195 ・・・・Cells containing solid electrolyte

C02F 2201/48 ・Devices for applying magnetic or electric fields

C02F 2201/483 ・・using coils

C02F 2201/486 ・・using antenna

C02F 2201/78 ・Details relating to ozone treatment devices

C02F 2201/782 ・・Ozone generators

C02F 2201/784 ・・Diffusers or nozzles for ozonation

C02F 2203/00 Apparatus and plants for the biological treatment of water, waste water or sewage

C02F 2203/002 ・comprising an initial buffer container

C02F 2203/004 ・comprising a selector reactor for promoting floc-forming or other bacteria

C02F 2203/006 ・details of construction, e.g. specially adapted seals, modules, connections

C02F 2203/008 ・Mobile apparatus and plants, e.g. mounted on a vehicle

C02F 2209/00 Controlling or monitoring parameters in water treatment

C02F 2209/001 ・Upstream control, i.e. monitoring for predictive control

C02F 2209/003 ・Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process

C02F 2209/005 ・Processes using a programmable logic controller (PLC)

C02F 2209/006 ・・comprising a software program or a logic diagram

C02F 2209/008 ・・comprising telecommunication features, e.g. modems or antennas

C02F 2209/01 ・Density

C02F 2209/02 ・Temperature

C02F 2209/03 ・Pressure

C02F 2209/04 ・Oxidation reduction potential (ORP)

C02F 2209/05 ・Conductivity or salinity

C02F 2209/055 ・・Hardness

C02F 2209/06 ・pH

C02F 2209/07 ・Alkalinity

C02F 2209/08 ・Chemical Oxygen Demand (COD); Biological Oxygen Demand (BOD)

C02F 2209/09 ・Viscosity

C02F 2209/10 ・Solids, e.g. total solids (TS), total suspended solids (TSS) or volatile solids (VS)

C02F 2209/105 ・・Particle number, particle size or particle characterisation

C02F 2209/11 ・Turbidity

C02F 2209/12 ・Volatile Fatty Acids (VFAs)

C02F 2209/14 ・NH3-N

C02F 2209/15 ・N03-N

C02F 2209/16 ・Total nitrogen (tkN-N)

C02F 2209/18 ・PO4-P

C02F 2209/19 ・SO4-S

C02F 2209/20 ・Total organic carbon (TOC)

C02F 2209/21 ・Dissolved organic carbon (DOC)

C02F 2209/22 ・O2

C02F 2209/225 ・・in the gas phase

C02F 2209/23 ・O3

C02F 2209/235 ・・in the gas phase

C02F 2209/24 ・CO2

C02F 2209/245 ・・in the gas phase

C02F 2209/26 ・H2S

C02F 2209/265 ・・in the gas phase

C02F 2209/28 ・CH4

C02F 2209/285 ・・CH4 in the gas phase

C02F 2209/29 ・Chlorine compounds

C02F 2209/30 ・H2

C02F 2209/32 ・CO

C02F 2209/34 ・N2O

C02F 2209/36 ・Biological material, e.g. enzymes or ATP

C02F 2209/38 ・Gas flow rate

C02F 2209/40 ・Liquid flow rate

C02F 2209/42 ・Liquid level

C02F 2209/44 ・Time

C02F 2209/445 ・・Filter life

C02F 2301/00 General aspects of water treatment

C02F 2301/02 ・Fluid flow conditions

C02F 2301/022 ・・Laminar

C02F 2301/024 ・・Turbulent

C02F 2301/026 ・・Spiral, helicoidal, radial

C02F 2301/028 ・・Tortuous

C02F 2301/04 ・Flow arrangements

C02F 2301/043 ・・Treatment of partial or bypass streams

C02F 2301/046 ・・Recirculation with an external loop

C02F 2301/06 ・Pressure conditions

C02F 2301/063 ・・Underpressure, vacuum

C02F 2301/066 ・・Overpressure, high pressure

C02F 2301/08 ・Multistage treatments, e.g. repetition of the same process step under different conditions

C02F 2301/10 ・Temperature conditions for biological treatment

C02F 2301/103 ・・Psychrophilic treatment

C02F 2301/106 ・・Thermophilic treatment

C02F 2303/00 Specific treatment goals

C02F 2303/02 ・Odour removal or prevention of malodour

C02F 2303/04 ・Disinfection

C02F 2303/06 ・Sludge reduction, e.g. by lysis

C02F 2303/08 ・Corrosion inhibition

C02F 2303/10 ・Energy recovery

C02F 2303/12 ・Prevention of foaming

C02F 2303/14 ・Maintenance of water treatment installations

C02F 2303/16 ・Regeneration of sorbents, filters

C02F 2303/18 ・Removal of treatment agents after treatment

C02F 2303/185 ・・The treatment agent being halogen or a halogenated compound

C02F 2303/20 ・Prevention of biofouling

C02F 2303/22 ・Eliminating or preventing deposits, scale removal, scale prevention (C02F 1/042, C02F 1/4602, C02F 5/00 take precedence)

C02F 2303/24 ・Separation of coarse particles, e.g. by using sieves or screens

C02F 2303/26 ・Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of micro-bubbles or nano-bubbles

C02F 2305/00 Use of specific compounds during water treatment

C02F 2305/02 ・Specific form of oxidant

C02F 2305/023 ・・Reactive oxygen species, singlet oxygen, OH radical

C02F 2305/026 ・・Fenton's reagent

C02F 2305/04 ・Surfactants, used as part of a formulation or alone

C02F 2305/06 ・Nutrients for stimulating the growth of microorganisms

C02F 2305/08 ・Nanoparticles or nanotubes

C02F 2305/10 ・Photocatalysts

C02F 2305/12 ・Inert solids used as ballast for improving sedimentation (C02F 3/1226 takes precedence)

C02F 2305/14 ・Additives which dissolves or releases substances when predefined environmental conditions are reached, e.g. pH or temperature

C02F 2307/00 Location of water treatment or water treatment device

C02F 2307/02 ・as part of a bottle

C02F 2307/04 ・as part of a pitcher or jug

C02F 2307/06 ・Mounted on or being part of a faucet, shower handle or showerhead

C02F 2307/08 ・Treatment of wastewater in the sewer, e.g. to reduce grease, odour

C02F 2307/10 ・as part of a potable water dispenser, e.g. for use in homes or offices

C02F 2307/12 ・as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners

C02F 2307/14 ・Treatment of water in water supply networks, e.g. to prevent bacterial growth