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WO/1985/003065 |
Nonionic surfactants based upon low molecular weight block copolymers of ethylene oxide and butylene oxide are particularly useful as low foaming dewatering aids in the processing (e.g., filtering, drying, etc.) of various mineral concen...
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WO/1985/002836 |
In the continuous process for dehydrating muds, the mud is previously treated by a flocculation agent as a function of the mud amount per time unit and is pumped to a chamber filter press (11) by means of a pump (12). In order to provide...
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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/1984/001313 |
A process for the recovery of solid materials from dilute dispersion of finely divided solid material, such as animal wastes, sewage, asbestos and coal, comprising adding to the dispersion an agglomeration agent capable of inducing flocc...
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WO/1983/003060 |
Method to spread a pulp of which the solid fraction has a d80 lower than 100 micrometers, for its natural drying. The method is characterized in that it comprises the following consecutive steps: a) adjustment of the proportion of solid ...
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WO/1983/001969 |
In screening a fibre suspension, an accept and a reject are tapped off, tapping the reject being controlled by a valve (6). According to the invention, the pressure drop across the screening means is measured, and when this drop exceeds ...
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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/1983/001014 |
A filtering process for obtaining a clear effluent filtrate from a turbid oil or gas well treatment fluid contaminated with solid particulates comprised of drilling and formation debris having particle sizes in the range of from about 0....
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WO/1982/004198 |
Method at the preparation and application of precoat, comprising a precoat and water, at rotating vacuum filters comprising a rotating drum. According to the invention, water (B) is introduced into the drum interior, whereafter the preco...
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WO/1981/003483 |
Aqueous slurries of fine coal are dewatered by a process which comprises mixing a mixture of a water-soluble organopolysiloxane and a water-emulsifiable organopolysiloxane with the slurry, separating the slurry to recover the fine coal a...
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WO/1981/003484 |
Aqueous slurries of fine coal are dewatered by a process which comprises mixing an organopolysiloxane with the slurry, separating the slurry to recover the fine coal and further drying the fine coal, if desired. The use of water-soluble ...
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WO/1981/000359 |
A method for separating filterable particle from a liquid suspension, e.g. white water cleaning for paper machines. Movable, cyclically operating filter elements are used, which in succession and repeatedly pass an operating cycle during...
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WO/1981/000058 |
Cleaning a filter surface (16) in situ in a filter housing (10) forming part of a pressure filtering apparatus for liquids is carried out by drying the coating deposited on the filter surface by means of hot air which is caused to flow a...
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WO/1980/002381 |
The rate of filtration of a coal liquid slurry is increased by adding polyisobutylene and an alcohol containing 2 to 10 carbon atoms to the slurry prior to filtration or by adding the alcohol to the slurry and washing a precoat cake of f...
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WO/1980/002383 |
The rate of filtration of a coal liquid slurry is increased by adding an ethylene vinyl acetate copolymer and an alcohol containing 2 to 10carbon atoms to the slurry prior to filtration or by adding the alcohol to the slurry and washing ...
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WO/1980/002384 |
The rate of filtration of a coal liquid slurry is increased by adding polyisobutylene to the slurry prior to filtration or by washing a precoat cake of filter aid with an oil solution of polyisobutylene prior to filtration.
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WO/1980/002386 |
The rate of filtration of a coal liquid slurry is increased by adding an alkylmethacrylate copolymer and an alcohol containing 2 to 10 carbon atoms to the slurry prior to filtration or by adding the alcohol to the slurry and washing a pr...
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WO/1980/002382 |
The rate of filtration of a coal liquid slurry is increased by adding ethylene vinyl acetate copolymer to the slurry prior to filtration or by washing a precoat cake of filter aid with an oil solution of ethylene vinyl acetate copolymer ...
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WO/1980/002385 |
The rate of filtration of a coal liquid slurry is increased by adding an alkylmethacrylate copolymer to the slurry prior to filtration or by washing a precoat cake of filter aid with an oil solution of the alkylmethacrylate copolymer pri...
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WO/1980/000542 |
A process for filtering gases or liquids for removing liquid or solid impurities is characterized in that one uses for filtering a fibre material which partly exhibits a layer structure, said fibres along the main part of the total fibre...
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WO/1979/000129 |
The waste waters which may have been purified first mechanically (1) are introduced into a reactor (4), in which they undergo during their forced ascension an intensive introduction of very thin air bubbles (oxygen). The reactor contains...
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WO/1979/000086 |
In the field of pressure filter systems, a method and apparatus for re- generating a diatomaceous earth filter cake of a pressurized liquid filter system in order to solve the problem of down time and one-time only use of the filter mate...
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WO/1979/000012 |
Filter elements in a filter press are closed and made tight by the automatic adaptation and control of their closing force in correspondence to their opening force. The opening force, of variable magnitude, is generated by the pressure o...
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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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JP2011212620 |
To prevent exfoliation of a filtration aid that is precoated on a disk filter and to improve filtration speed while a disk filter size is maintained.On one surface (top face) 104 of a disk filter element 10 comprising a disk filter, conc...
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JP2011200802 |
To provide a filtration system which can easily recover the capturing capability of a filter medium.This filtration system comprises: (1) a filtering means; (2) cleaning means 6, 15, 16, 2 and 3; (3) a flocculant adding means 11b; (4) tu...
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JP2011194273 |
To provide a filtration system capable of producing treated water of stable quality.The filtration system includes turbidimeters 9a, 9b, a hardness meter 18, washing means 24, 25a, 4a, 25b, 4b, regeneration means 24, 25c, 14, a deciding ...
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JP2011189269 |
To provide a treatment system of contaminated water such as a dioxin which can treat stably the contaminated water such as a dioxin to filtered water of a discharge standard or less, and at the same time, can carry out efficiently in a s...
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JP2011183334 |
To provide a filtration system made not to supply a user with treated water of deteriorated quality as much as possible.The filtration system includes a filtering means of producing treated water by catching suspended solid substances co...
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JP2011183301 |
To provide a method for concentrating sludge in which the concentration of the sludge in the cleaned waste water to be discharged is managed without using a sludge densitometer having a high production cost and the cleaned waste water, w...
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JP2011183351 |
To provide a water treatment system capable of reducing the time when water supply to a user is suspended, of effectively making use of water resources, and of effectively restoring the filtering capacity of its filtering apparatus.The w...
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JP2011183310 |
To provide a filtration system made not to supply a user with treated water of deteriorated quality as much as possible.The filtration system includes a raw water line for raw water to flow therethrough, a filtering apparatus that is dis...
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JP2011161347 |
To provide a filtration system which can improve water quality of treated water produced immediately after starting a filtration process.The filtration system includes: a filtration means 110 for trapping suspended solids contained in ra...
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JP2011161431 |
To provide a laver wastewater treatment method that is environment-friendly, with the purpose of surely and inexpensively sorting water and raw laver out of wastewater, purifying water after sorting for recycling, wherein the wastewater ...
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JP2011145071 |
To provide a flow monitor which enables automatic sensing of a parameter equivalent to a flow rate of a liquid, and a functional liquid supply device equipped with the monitor.The flow monitor has: a case 15 having an inflow port 13 and ...
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JP2011136295 |
To allow reuse of an additive, to reduce an addition amount of the additive and a generated amount of waste, and to make the apparatus compact.The filtration apparatus has a filtration chamber 171 having an inflow port receiving treating...
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JP2011126005 |
To avoid any stuffing in a reproducing device by providing an automatic washing device in the reproducing device for reproducing a clean cooling and washing liquid by filtering a turbid liquid (15).The reproducing device (2) for reproduc...
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JP2011126004 |
To reliably make an automatic control even when a reproducing device for filtering a turbid liquid and reproducing it into a clean cooling and washing liquid, is connected to electric tools of battery drive type and/or external power dri...
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JP2011110457 |
To reduce the amount of a cleaning solution used and filling with the cleaning solution in a short time in cleaning filter cake.Filter equipment includes a filter container 21, a filter element 2 making filter cake adhere within the filt...
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JP2011104548 |
To provide a liquid cleaning apparatus operable at low cost and made considerably easy for maintenance and control by lowering the frequency of part exchange of the apparatus by preventing corrosion of metal parts.The liquid cleaning app...
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JP2011083759 |
To provide a filtration apparatus and method effectively reusing silicon sludge as an inexpensive material of solar battery silicon.The filtration apparatus 1 includes a filtering container 2 made of PFA as a fluorine-based resin, a nylo...
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JP2011036817 |
To provide a filtration method of slurry containing colloidal silica, a method capable of efficiently performing solid-liquid separation without using organic polymer flocculant in reference to the solid-liquid separation of slurry conta...
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JP2011011115 |
To cope with requirements for treated water without adversely affecting the quality of treated water even in conflict with requirements for the impossibility of regeneration at a timing of the satisfaction of regeneration factors.There i...
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JP2011000569 |
To deal with the demand of treated water without deteriorating the treated water quality, even if the timing of satisfying regeneration factors of a filtering means conflicts with regeneration inhibiting conditions.A control method contr...
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JP2011000568 |
To prevent deterioration of filtrate quality when controlling a water flow rate according to the load.A control method controls a filtration system which includes a filtering means 1 connected between a raw water line 8 and a treated wat...
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JP2010284649 |
To provide a nanofiber filter medium for removing impurities from a fluid such as a liquid.An air filter medium includes: a nanofiber; and a filter medium having a thickness of less than about 0.25 millimeters, a performance index of gre...
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JP2010279945 |
To provide a filter medium having a microbiological interception function, filtration systems including the filter medium, and a method of manufacturing the same.The invention is directed to a microbiological interception enhanced filter...
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JP2010259996 |
To provide a method of treating car-washing wastewater containing oil, mud, sand, a surface active agent and so on occurring in each car washing treatment place and so on by using a filter device using natural materials, which is environ...
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JP2010234233 |
To provide an organic sludge treatment method in which in vacuum precoat filtration, a precoat agent is fully obtained without supplying a carbonated material from outside, therefore the precoat is produced, in so-called "closed state", ...
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JP2010234325 |
To enhance operation efficiency of a vacuum filter by taking measures to treat wastewater containing foreign matters and by equalizing the abrasion of a scraping blade regardless of its position on the filtering surface in conventional p...
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