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WO/1991/001944 |
A process and apparatus (1) for removing fat, bacteria, solids and other impurities from water used in food processing so that substantially all the water may be reused. The water is coarsely filtered (4) and is then introduced into a to...
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WO/1991/000768 |
The present invention relates to a method and apparatus for treating pulp, which method and apparatus are especially suitable for treating fiber suspensions in wood processing industry. The method and apparatus are particularly designed ...
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WO/1991/000249 |
A method of efficiently concentrating and dehydrating slurried sludge in a short period of time without requiring a wide area. In an agitating tank, the sludge containing a flocculant is agitated and turned into an aggregate; the aggrega...
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WO/1990/015655 |
A filter for continuous filtration of a liquid includes conventionally a vessel (1) having a center shaft (2) on which is arranged at least one rotatable filter element defining an inner space for liquid obtained at filtration. Further t...
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WO/1990/015025 |
Disclosed is a method for purifying contaminated water containing heavy metal impurities, comprising the steps of directing a flow of the contaminated water through a first electrolytic oxidation chamber (26), comprising a plurality of e...
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WO/1990/014872 |
A system (11) for clarifying liquids, having particular utility in dry cleaning operations. The system includes a filter apparatus (25) connected to a washer (12), said apparatus includes housing (10), and a plurality of axially spaced f...
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WO/1990/012635 |
The invention relates to a separator for regenerating used emulsions, especially of cooling lubricants but also cleaning solutions, with a discharge pipe (1) for the regenerated emulsion. The aim of the invention is to provide a separato...
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WO/1990/011809 |
The invention relates to a continuous-working process and apparatus for replacing the liquid in a liquid suspension of a fibrous material with another liquid by forming of this material a bed (32) on a moving filter surface and by displa...
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WO/1990/010489 |
A filter for continuous filtering of a suspension under pressure and/or vacuum comprises a vessel (1) having a center axle (2) on which filter discs (3) are arranged at a distance from each other along the central axle. The filter discs ...
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WO/1990/010490 |
A filter for continuous filtering of a suspension under pressure and/or vacuum includes a vessel (1) having a center axle (2) on which filter discs (3) are arranged at a distance from each other along the center axle. The filter discs co...
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WO/1990/008645 |
An apparatus for dewatering and squeezing treatment of material in form of sludge, suspensions, peat, etc, includes as ending treatment part a screw press section (12-14; 28-30) including a press screw (12, 13; 29, 30) and a sieve mantle...
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WO/1990/007974 |
A reverse osmosis unit (10) having a primary filter (86) and a secondary filter (90) with a check value (110) therebetween so that water passing through the unit (10) to a storage tank flows through both filters (86, 90) and just before ...
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WO/1990/007666 |
A self-venting valve apparatus (2) uses a valve stem (16) rotatably and slidably mounted to a vessel (4) by a collar (8). A single gasket (46) seals the gas inlet and liquid outlet in the closed configuration. To drain the liquid, the va...
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WO/1990/005576 |
A separating filter for separating a pulp consisting of a mixture of liquids containing solids fractions comprises a pressure filter associated with a fine-filtration and ultrafiltration device. The solids fractions are retained in the p...
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WO/1990/005571 |
A dry cleaning solvent recovery and filtering system includes a dry cleaning solvent tank (10) containing solvent for use in a dry cleaning machine. A filtration path from the tank includes a centrifugal separator (13) for removing coars...
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WO/1990/005012 |
Surface defects in the form of dimples may occur in stoved and/or overpainted electrophoretic enamal films due to the presence of hydrophobic substances in the enamel. A filter which removes these hydrophobic substances from the eletroph...
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WO/1990/003846 |
The invention consists of forming an aqueous slurry of water and particles of ore carrying both metals and/or minerals which are passed at relatively high speed along an electrically isolated path in contact with electrically insulating ...
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WO/1990/003104 |
With a method and an apparatus for treating liquid manure (1) it becomes possible to perform a considerable reduction in the initial costs as smaller tanks may be used and it becomes possible to operate a plant in such a way that it may ...
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WO/1989/005685 |
A fuel filter apparatus including a chamber (12), a discharge gate (14), a fuel pump (16), and a fuel filter. The discharge gate (14) is connected to the bottom of the chamber (12). The fuel pump (16) is connected to the top surface of t...
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WO/1989/004293 |
The present invention relates to a filter band press which is used, for example, for treating industrial sewage and sludge. Filter band presses are used especially for thickening sewage sludge in the pulp industry so that it would result...
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WO/1989/002776 |
A stream of contaminated liquid flows into a vessel, through a filter media comprised of at least 50 % pecan hulls, while clean liquid exits the vessel, leaving the contaminants deposited on the filter media. The deposited contaminants a...
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WO/1989/002707 |
In the process described, the liquid to be clarified, in particular raw juice, is mixed in a mixing nozzle (2) with at least a first clarifying additive, for example gelatin, and decanted for 5 to 15 minutes in one or several settling ta...
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WO/1989/001816 |
Apparatus for use in a water clarification system (10) which removes particles from the clarified water. The apparatus includes a screen (38) which is positioned in a clarified water storage area (34) between the inlet (34A) and the clar...
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WO/1989/001814 |
The object of the invention is a filtration plant for processing of water, to which filtration plant belong a filter basin (1) and a filtering material layer (2), favourably a sand layer, through which the water to be purified is arrange...
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WO/1989/000630 |
A process and device are disclosed for dredging silt deposits in ports, waterways, etc. by means of a slope conveyor. The silt upper layer (25) is undercut, gathered by means of a receptacle (5, 19, 20) and removed by means of a mechanic...
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WO/1989/000288 |
A filtration unit has a sample vessel (12), a filtrate vessel (16), and a filter body (22) with a filter element (24, 26) located between the sample vessel (12) and the filter element (16). In order to obtain automatic pressure compensat...
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WO/1988/009698 |
Liquid separator and method of separating liquids, such as oil and water in a mixture thereof by use of a hydrocyclone (10). A more dense component of the mixture separated by the hydrocyclone is passed to a filter device (100) for furth...
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WO/1988/009308 |
Contaminated water is purified by introduction into a filter, filtering the water, accumulating the partially purified water delivered from the filter, heating the collected water to a temperature near its boiling point, reintroducing th...
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WO/1988/005334 |
Methods and apparatus for liquid filtration and in particular to the recycling of ''grey water''. It also includes related methods and flocculation agents. The apparatus (14) consists in a ''grey water'' inlet (18), an oil trap (19), flo...
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WO/1988/004951 |
A filter device for removing contaminants from liquid flowing therethrough comprising a vessel having an inlet for providing a contaminated liquid flow into the interior thereof and an outlet through which filtered liquid can exit the ve...
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WO/1988/003048 |
For dewatering waste water sludge, the sludge pre-treated with a flocculator is subjected to a pre-dewatering stage through superimposed travelling screens before being pressed. The pre-dewatered sludge up to about 20 % of dry matter is ...
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WO/1987/006306 |
A filter pump head assembly (10) is adapted for use with pneumatic pumping control systems. The assembly includes a rigid case subassembly (12) enclosing a chemically inert liner subassembly (14) which encloses a filter subassembly (16)....
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WO/1987/005005 |
The separation of solid particles from liquids, in particular the dewatering and thickening of sludge, a drainage unit (9) being employed. The drainage unit includes a container (10) which is permeable to the liquid, for example is scree...
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WO/1987/000073 |
The device comprises a slowly rotating screening drum (1) which is provided with feeding devices for feeding waste water into the screening drum from one end (2) thereof and with devices for discharging solid substances out from the othe...
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WO/1986/006657 |
The present method enables to recover valuable materials from lacquer residues containing, in addition to solvents, binders and consummable materials, up to 50% by volume of solids, in the form of pigments and/or inorganic and/or organic...
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WO/1986/001427 |
Apparatus for removing suspended particles from water comprises outer and inner concentrically arranged tanks (1, 2) and a carriage (6) arranged on top of the outer tank (1) for movement around the same. Unclarified water is introduced i...
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WO/1986/000242 |
A filter assembly (10) and associated filter unit (12) includes a repelling-action filter media (52) for use in vacuum or suction side fuel filter applications. In particular, the filter unit is a screw on unit with centrally located thr...
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WO/1986/000241 |
A filter unit (12) uses an end cap (76) design to alow flow reversal from inside-out or outside-in and accommodates a dual collection zone or sump (38, 40) collection bowl (16). The spin-on filter unit has relieved portions (93) on the e...
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WO/1985/004113 |
Vacuum rotary filter with horizontal filtering plane comprising a distributor consisting of a distributor part, a collector part and a gas separation chamber. The collector part (110) consists of a single vat divided into three compartme...
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WO/1985/003456 |
Process of recovering a constituent of a process effluent, such as an effluent of a process for making a preform from which an optical fiber is drawn. The effluent is directed into a scrubber (40) of a loop (20) where it is treated with ...
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WO/1985/001673 |
A spin-on fuel water separator (10) having a filter element (14) attached within an electrically grounded housing (18), means (29) are provided for supplying an electrical potential to the filter element (14) and the filter element (14) ...
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WO/1985/000354 |
A process and apparatus for separating drilling mud and waste materials into pure water and a concentrated solid waste phase which is easily handled and disposed of. The process and apparatus provide for adjusting the pH of the drilling ...
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WO/1983/003780 |
The device to separate solid impurity particles from cooling water for thermal stations or the like comprises a cylindrical chamber (1) wherein a filter drum (2) is arranged, delimiting an annular compartment (3). An axially arranged dom...
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WO/1983/002720 |
The apparatus, which is designed for collection of mercury waste products and other waste products which are sucked from a rinse basin or by a mouth suction device at a dental clinic, has a head (1) which is stationary at the dentist's c...
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WO/1983/001013 |
A unitary method and system for the continuous purification of a liquid medium containing solid particulate matter comprises: a conduit (13) for delivering a continuous stream of the liquid medium to a first separator (14) wherein partic...
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WO/1980/002515 |
A sludge decanter thickener comprises a compaction chamber for compacting the sludge by means of a helical screw discharging the compacted sludge through a hole provided with an adjustable diaphragm. The decanter is characterized in that...
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JP2011255471 |
To provide a waste liquid treatment device for preventing the neglect of filter unit replacement.The waste liquid treatment device includes: a waste liquid tank 4; a feeding pump 6 that supplies a processing waste liquid stored in the wa...
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JP2011245424 |
To provide a filtration device, a discharge water recycling system and a car wash discharge water recycling system capable of efficiently filtering discharge water with a simple structure without using a closed type filter.A first filter...
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JP2011224467 |
To provide a water purifier that efficiently regenerates an ion exchange unit by a simple configuration.The water purifier 1 includes a main water passage 101, an ion exchange resin 113, a dedicated tank 301 for cleaning, a circulation w...
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JP2011212589 |
To provide a cleaning apparatus of deposits of instruments which suitably treats a wastewater generated by cleaning of a paint even in a working place limited in a usable space.The cleaning apparatus includes: a storage tank 14 which sto...
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