摘要:
A method of desalinating water through application of acoustic pressure shock waves to a slush to separate ice crystals from brine and recovering desalinated water from the separated ice crystals.
摘要:
Fluid filtration devices and methods of filtering fluids are described. The devices generally include a housing and an annular filter assembly, wherein the filter assembly is located inside the housing and comprises a filter material. The filter material may be, for example, an electroformed nickel screen having a smooth working surface and expanding pores. A rotating cleaning assembly comprising a distributor and wipers may be located inside the filter assembly.
摘要:
A cleaning system and method of cleaning filters that removes the ash in the plugged regions is disclosed. The filter is subjected to vibrations, which serve to loosen trapped and packed retentate from the filter. The loosened retentate is then captured by a collection bin. The cleaning system can be integral with the intended application, such as within an automobile. In another embodiment, the cleaning system is a separate cleaning station, where the filter is removing from its intended application, cleaned, and then reinstalled.
摘要:
A liquid filtering device includes a filtration membrane unit, cleaning means that cleans a filtering surface of the filtration membrane unit from a side to which a water to be filtered is supplied, and pressure-detecting means that detects a differential pressure between before and after filtration by the filtration membrane unit, in which the filtration membrane unit includes two filtration membranes. A ballast water treatment apparatus includes the liquid filtering device, in which the liquid filtering device is used as a filtering device of seawater, and the ballast water treatment apparatus is carried in a ship.
摘要:
The present invention relates to an apparatus and a method for filtering liquid products. The apparatus includes a filtration bell provided with filtering device and connected to an inflow circuit and a first outlet circuit of the retentate, and to a second outlet circuit of the filtered liquid. The apparatus can include a monitoring and control unit, a first and second sensing device suitable for detecting the value of a first pressure PT1 in the first outlet circuit and of a second pressure PT2 in the second outlet circuit, a flow rate detection device that detects the value of a first flow rate FIT in the second outlet circuit, and value device arranged in the second circuit downstream of the second sensing device. The monitoring and control unit includes a device to control the closure of the valve device and to start a process of backwashing the filtering device.
摘要:
Continuous processes for depleting residuals in hollow fiber membranes comprising polysulfone or polyethersulfone and polyvinylpyrrolidone by rinsing the membranes while compressing them in a pinching device comprising grooved rollers.
摘要:
Method and apparatus for reducing the total dissolved solids of a solution. A feed solution is conveyed to at least one first chamber of a unit, and a draw solution is conveyed to at least one second chamber thereof. A semi-permeable member arrangement is disposed between each of the first and second chambers. The draw solution has a greater molar concentration than does the feed solution. Solvent from the feed solution is drawn through the membrane arrangement into the draw solution, reducing the solute concentration of the draw solution and increasing the solid concentration of the feed solution. Paddles provide continuous sweeping of opposite external surfaces of the membranes to at least reduce solute depositions on the surface facing the feed solution chamber, and to remove liquid permeate molecules from that external surface of the membranes that faces a draw solution chamber.
摘要:
Apparatus and methods for collection and removal of particulate matter, including fine particulate matter, from a gas stream, comprising a unique combination of high collection efficiency and ultralow pressure drop across the filter. The apparatus and method utilize simultaneous electrostatic precipitation and membrane filtration of a particular pore size, wherein electrostatic collection and filtration occur on the same surface.
摘要:
Disclosed are a rotor for generating vortex water flow that creates shear intensity for removing solid material adhered to the separation membranes during the processing of water containing pollutant material, and a filtering apparatus employing the same. The rotor consists of a first rotor having first blades and a second rotor having second blades. The first and the second blades are extended in a radial direction from a rotational axis thereof, and are disposed at positions different from each other in the rotational axis direction. The first blades and the second blades have widths different from each other in a circumferential direction around the rotational axis, or disposed at positions different from each other in a circumferential direction. Protrusions can be attached on outer surfaces of the first blades and/or second blades. The pollutant material adhered to the separation membrane can be removed effectively since various types of vortex water flow are generated over wide range, and the energy loss of the filtering apparatus is reduced.
摘要:
A method of producing high purity water using weak acid cation exchange for dealkalization and a double pass reverse osmosis membrane system having enhanced membrane life.