321 |
MODEL FOR MICROFILTRATION OF POLY-DISPERSE SUSPENSIONS |
PCT/US0325230 |
2003-08-13 |
WO2004016334A3 |
2004-08-12 |
BELFORT GEORGES; BARUAH GAUTAM LAL |
The present invention relates to a method for predicting pressure independent permeation flux and target molecule yield in a permeate resulting from crossflow filtration of particles in a poly-disperse suspension, a method for determining packing density of particles at the membrane wall of a poly-disperse suspension, a method for designing a filtration system for a poly-disperse suspension, a method of selecting operating conditions of a crossflow filtration system for poly-disperse suspensions, and a method of modeling a process for filtration of a poly-disperse suspension using a computer generated program for predicting pressure independent permeation flux and target molecule yield. |
322 |
EFFLUENT TREATMENT COMBINING SOLID/LIQUID SEPARATION AND PULSED ELECTRIC FIELDS |
PCT/FR0302055 |
2003-07-02 |
WO2004005197A3 |
2004-04-08 |
SCHRIVE LUC; NOUVEL PHILIP; GRASMICK ALAIN |
The invention concerns an effluent treatment wherein a flow of said effluents is subjected to a pulsed electric field producing a physico-chemical and biological modification of the medium, used during a decantation or membrane filtration type solid/liquid separation. The solid/liquid separation (13, 14, 15) and the pulsed electric field treatment (12) are operations carried out at different points of the flow of effluents. The pulsed electric field has voltage value, current value, pulse repeat frequency and voltage front form characteristics selected, depending on the points where are performed the membrane filtration and pulsed electric field treatment, to obtain the desired treatment for the effluents. |
323 |
METHOD AND APPARATUS FOR MICROFILTRATION |
PCT/US0000316 |
2000-01-07 |
WO0040513A8 |
2001-02-08 |
SHORR JACOB; TOOHIL JOHN PAUL JR |
A method and apparatus for microfiltration useful in softening water as well as in removing other dissolved constituents where the method comprises passing water that contains a precipitate through a semipermeable tubular membrane. Filtrate is received from the outside of the tubular membrane and the filtrate contains levels of dissolved compounds at concentrations below those that would be predicted by the solubility limits of the compounds. The method may be practiced at elevated pressures without incurring significant fouling of the membrane. It is particularly suited to removing cations such as calcium and magnesium that contribute to water hardness. The water may be treated prior to passing through the membrane by adjusting pH, adding complementary anions, or adding a flocculant. The apparatus comprises a series of semipermeable tubular membranes housed in a module. The membranes are fluidly connected to an inlet and two outlets. A momentary dynamic membrane is disposed on the inner surface of the tubular membrane. |
324 |
CONTROL OF IMMERSED MEMBRANE SYSTEM CONSIDERING ENERGY COST FLUCTUATIONS |
PCT/US2012049742 |
2012-08-06 |
WO2013025389A2 |
2013-02-21 |
THEODOULOU MICHAEL DAVID |
An immersed membrane filtration system is operated in view of an electricity pricing programs in which the price of electricity varies over time. Examples of such programs include time of use pricing, critical peak pricing and critical peak rebate programs. Alternatively, the filtration system may be operated, for example as part of a smart grid, in view of requests or demands by an electrical utility for time limited reductions in energy use. During a high energy cost period of time, one or more membrane units are shut down. Preferably, aeration of the still operating membrane units is not increased. The flux of the still operating trains may be increased towards a pre-determined maximum permitted flux, or towards a maximum flux that is calculated in view of operational parameters such as water temperature or viscosity. Optionally, during a low energy cost period of time, one or more additional membrane units may be turned on. Optionally, the transfer of water from an equalization tank may also be controlled in view of the energy pricing program. |
325 |
SYSTEMS AND METHODS FOR COMPENSATION OF COMPLIANT BEHAVIOR IN REGENERATIVE DIALYSIS SYSTEMS |
PCT/US2011052742 |
2011-09-22 |
WO2012050781A3 |
2012-11-01 |
BEIRIGER MICHAEL J |
In a regenerative dialysis system, in a method for controlling a regenerative dialysis system, and in a controller for a regenerative dialysis system, an embodiment of the system comprises an input pump that pumps fresh dialysate fluid into a dialyzer at an input rate. An output pump pumps used dialysate fluid from the dialyzer at an output rate. An ultrafiltration rate of the system is related to the output rate relative to the input rate. A sorbent cartridge filters the used dialysate fluid to generate the fresh dialysate fluid. A controller controls the ultrafiltration rate of the system in response to a flow rate of the dialysate fluid through the sorbent cartridge. |
326 |
APPARATUS, SYSTEM AND METHOD FOR INTEGRATED FILTRATION AND REVERSE OSMOSIS DESALINATION |
PCT/US2011051626 |
2011-09-14 |
WO2012037274A3 |
2012-06-07 |
COHEN YORAM; CHRISTOPHIDES PANAGIOTIS D; RAHARDIANTO ANDITYA; BARTMAN ALEX R; ZHU AIHUA; GU HAN |
An apparatus includes a filtration skid configured to generate a filtrate through at least one of microfiltration and ultrafiltration. The apparatus further includes a desalination skid fluidly connected to the filtration skid. The desalination skid is configured to perform reverse osmosis desalination on the filtrate to generate a permeate, where the filtrate travels from the filtration skid to the desalination skid without traversing a storage tank. In one embodiment, the apparatus further comprises a controller, where the filtration skid and the desalination skid are integrated to provide self-adaptive operation of the filtration skid and the desalination skid in response to control by at least one of a supervisory controller and a local controller. In one embodiment, the control responds to at least one of temporal variability of feed water quality, a permeate production capacity target, and a permeate quality target. |
327 |
METHOD FOR THE OPTIMISED MANAGEMENT OF A MEMBRANE FILTRATION UNIT AND EQUIPMENT FOR REALISING THE SAME |
PCT/FR2007002074 |
2007-12-14 |
WO2008087300A2 |
2008-07-24 |
LANGLAIS CHRYSTELLE |
The invention relates to a method for the optimised management of a membrane filtration unit based on membrane micro-coagulation, that comprises at least one measurement of the effluent temperature (7), one measurement of the filtration flow rate (8), and one measurement of the trans-membrane pressure (9). The injection of the coagulation reagent(s) is controlled by a unit (U) when the membrane permeability becomes lower than a threshold value, and the interruption of the coagulation reagent(s) injection is controlled when the membrane permeability is again equal to or higher than the stable LpO value before the drop, during a predetermined hold time. |
328 |
DEVICE FOR MEASURING PERMEATE FLOW AND PERMEATE CONDUCTIVITY OF INDIVIDUAL REVERSE OSMOSIS MEMBRANE ELEMENTS |
PCT/US2007006152 |
2007-03-12 |
WO2007108977A3 |
2008-07-17 |
WILF MARK; FRANKS RICH; BARTELS CRAIG; IKEYAMA NORIO |
The present disclosure relates to a system comprising integrated sensors (169, 170) for measurement of permeate flow and permeate conductivity of individual membrane elements (163) while they are in operation in an RO unit. The flow and conductivity measuring integrated sensors (169, 170) are of a small size that enables them to be inserted into the permeate tube (172) of connected membrane elements (163) during RO unit operation. Measured flow and conductivity information is transferred to the recording device (174) through electric wires or through wireless transmission. |
329 |
MICROFILTRATION AND/OR ULTRAFILTRATION PROCESS FOR RECOVERY OF TARGET MOLECULES FROM POLYDISPERSE LIQUIDS |
PCT/US2004009673 |
2004-03-30 |
WO2004094027A3 |
2007-06-07 |
BELFORT GEORGES; BARUAH GAUTAM LAL |
The present invention is directed to an improved microfiltration process, an improved ultrafiltration process, and an improved combination microfiltration process/ultrafiltration process, all for recovering target molecules from a polydisperse liquid. These processes are particularly useful in recovering proteins from transgenic milk. |
330 |
REVERSE OSMOSIS FILTRATION DEVICES WITH RFID TAG-POWERED FLOW AND CONDUCTIVITY METERS |
PCT/US2006034905 |
2006-09-07 |
WO2007030647A2 |
2007-03-15 |
IKEYAMA NORIO; WILF MARK |
The present invention relates to reverse osmosis filtration devices, and more particularly, to membrane filtration devices (10, 11, 12) that have flow meters and fluid conductivity meters powered by RFID tags. Embodiments of the present invention comprise reverse osmosis filters and filtration systems comprising measuring devices, including flow and conductivity meters. The meters of the present invention are preferably located on or within permeate core tubes (16) of filtration devices and systems. |
331 |
PROCESS FOR CONCENTRATION OF ANTIBODIES AND THERAPEUTIC PRODUCTS THEREOF |
PCT/US2005031844 |
2005-09-08 |
WO2006031560A3 |
2006-08-24 |
WINTER CHARLES MATTHEW |
The present disclosure provides a process for concentrating proteins including an ultrafiltering, a diafiltering, and a second ultrafiltering sequence, at elevated temperatures, such as above about 30°C. The disclosure also includes a process for preparing highly concentrated antibody compositions, and highly concentrated antibody products. |
332 |
FILTERING SYSTEM |
PCT/NL0200177 |
2002-03-18 |
WO02076590A3 |
2002-12-12 |
SCHARSTUHL JOHAN JAN; SCHARSTUHL ERIC |
A filtering system comprising an inlet (11) for liquid to be filtered and an outlet (9) for filtered liquid, as well as filtering means, which system is characterized in that the filtering means, placed in series comprise: a first filter (2) comprising activated carbon with the capability to also remove particles that are larger than approximately 0.5 mu m; an ultrafiltration membrane (5) for the removal of particles that are larger than approximately 0.02 mu m; a post-treatment filter (14) of activated carbon, optionally provided with a microfiltration membrane (13), wherein the system also comprises a vessel (6) for filtered water located between the ultrafiltration membrane (5) and the post-treatment filter (14), with the option of using the filtered water from the vessel for back-flushing the ultrafiltration membrane (5). |
333 |
ENHANCING FILTRATION YIELDS IN TANGENTIAL FLOW FILTRATION |
PCT/US0119936 |
2001-06-22 |
WO0200331A3 |
2002-03-25 |
SCHICK KARL G |
|
334 |
REVERSE OSMOSIS SYSTEM WITH BIOLOGICAL CONTAMINATION PREVENTION |
PCT/US0004346 |
2000-02-18 |
WO0048943A9 |
2001-10-04 |
BEALL TIMOTHY A |
An apparatus for providing a predetermined volume of biocidally treated water to a feed water side (110) of a reverse osmosis device (108) when it is shut down. A biocide dispenser (144) treats a predetermined volume of water from a source with a biocidal agent. A valve (146), coupled to the source of the predetermined volume of water, transfers the predetermined volume of water to the feed water side of the reverse osmosis device (108). A controller, coupled to the valve (146), causes the transfer of the predetermined volume of water after a source of feed water connected to the feed water side (110) of the reverse osmosis device (108) is shut off, and then causes the predetermined volume of water to remain in the feed water side (110) of the reverse osmosis device (108) while the reverse osmosis device (108) is shut down. |
335 |
Biofouling reduction |
PCT/IB9601015 |
1996-07-15 |
WO9703926A3 |
1997-09-18 |
WILLIAMS EDWARD EMYR; NICKSON PETER WILLIAM; KNOX-HOLMES BRENT ROLAND; WAINWRIGHT ROBERT |
The invention relates to the reduction and prevention of biofouling in facilities utilizing water, e.g. sea water, carrying biological organisms, without causing corrosion, chemical reaction or other detrimental action from the additive or environmental discharge problems. Such operations include, for example, desalinization plants, power plants, oilfield water injection facilities and shipboard or ocean platform fire water systems. For example, in the desalinization plant of Fig. 1, the biofouling reduction method and apparatus for this invention has a source of oxidizing agent (e.g., chlorine ions or ozone), a source of copper ions and a dosing chamber (25) for delivery of relatively low dosage levels of oxidizing agents and at appropriate times copper ions to form a treatment additive. Flow connectors (29) connect the dosing chamber (25) to various points along the piping in the desalinization plant. A controller (31) controls the operation of the dosing chamber and valves (33) along the flow connectors (29) to operate in a sequential target dosing mode to deliver treatment additive of predetermined composition to selected points along the piping at predetermined times and in predetermined concentrations. |