Patent application number | Description | Published |
20080203016 | Cleaning in Membrane Filtration Systems - A projectile of non-lethal composition includes an outer casing that is substantially sealed prior to impact with a target both when the projectile is in a static condition and when the projectile is in a dynamic condition. A marking material is encapsulated within the outer casing prior to impact. The outer casing is configured to deform and unseal upon impact such that the marking material disperses forward via hydraulic action. | 08-28-2008 |
20080210623 | Square Mbr Manifold System - A membrane module ( | 09-04-2008 |
20080257822 | Reduced Backwash Volume Process - A method of backwashing a membrane filtration module, where the module includes one or more membranes located in a feed-containing vessel. The membranes having a permeable wall which is subjected to a filtration operation wherein feed liquid containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall. The method includes the steps of suspending the filtration operation; aerating the membrane surface with gas bubbles to dislodge fouling materials therefrom; recommencing the filtration operation while suspending the flow of feed liquid to the feed-containing vessel for a predetermined period; again suspending the filtration operation; performing a liquid backwash of the membrane wall to dislodge fouling materials therefrom; removing at least some of the liquid containing the dislodged contaminant matter from the feed-containing vessel; and then recommencing the filtration operation. | 10-23-2008 |
20080290025 | Combination Membrane/Biolytic Filtration - Described herein are methods and systems for combination membrane/biolytic filtration. In one embodiment a filtration system is operated under suction. The arrangement includes a feed tan ( | 11-27-2008 |
20090107916 | MODULE CLEANING METHOD - An aeration/backwash device ( | 04-30-2009 |
20100012585 | MEMBRANE FILTRATION PROCESS AND DESIGN - A membrane filtration system ( | 01-21-2010 |
20100025320 | BACKWASH AND CLEANING METHOD - A method of concentrating the solids of a liquid suspension by providing pressure differential across the walls of permable hollow membranes ( | 02-04-2010 |
20100051545 | MEMBRANE MODULE PROTECTION - A filtration system for removing fine solids from a liquid suspension comprising a vessel for containing the liquid suspension, one or more permeable, membranes ( | 03-04-2010 |
20130334136 | CLEANING IN MEMBRANE FILTRATION SYSTEMS - A method of cleaning permeable, hollow membranes in an arrangement of the type wherein a pressure differential is applied across the walls of the permeable, hollow membranes immersed in a liquid suspension, the liquid suspension being applied to the outer surface of the porous hollow membrane to induce and sustain filtration through the membrane walls. The method of cleaning comprises the steps of applying a cleaning solution to one side of the membrane wall; applying a pressure differential across the membrane wall to cause flow of the cleaning solution through the wall from the one side of the membrane wall to the other side of the membrane wall and applying a reverse pressure differential across the membrane wall to cause flow of the cleaning solution through the wall from the other side of the membrane wall back to the one side of the membrane wall. | 12-19-2013 |