"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 7404896 | Modified membranes A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The ... | 07/29/2008 |
| 7387723 | Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials The invention relates to a membrane bioreactor process combined with an advanced biological sludge digestion process that provides significant improvements in sludge digestion by reducing the costs and resources required for disposing of digested sludge. The offline... | 06/17/2008 |
| 7384565 | Method for chlorite removal The invention is directed to a process for removing chlorite ion from a body of water containing unacceptably high levels of chlorite comprising adding to said body of water a chlorite removal chemical selected from the group comprising sodium dichloroisocyanurate d... | 06/10/2008 |
| 7361274 | Aeration method A method and filtration module (5) for providing gas bubbles within an array of vertically disposed porous hollow membranes (6) to clean the outer surfaces of said membranes (6) when the array is immersed in a liquid by feeding (10) the g... | 04/22/2008 |
| 7344645 | Methods of minimising the effect of integrity loss in hollow fibre membrane modules A method and apparatus for reducing the effect of integrity loss in a hollow fiber membrane module, said module including a plurality of hollow fiber membranes (5), at least one end of the fiber membranes (5) being supported in a pot (6), the me... | 03/18/2008 |
| 7329344 | Grease and scum removal in a filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials The invention relates to a membrane bioreactor process combined with an advanced biological sludge digestion process that provides significant improvements in sludge digestion by reducing the costs and resources required for disposing of digested sludge. The offline... | 02/12/2008 |
| 7300022 | Modified membranes A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The ... | 11/27/2007 |
| 7285217 | Removing odoriferous sulfides from wastewater A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. Th... | 10/23/2007 |
| 7282146 | Removal system for membranes in a membrane filtration system A removal system for membranes in a membrane filtration system of the type where the membranes (12) are supported on a membrane support rack (13) in a tank or vessel (6) which, in use, contains liquid to be filtered. The tank (6) comprise... | 10/16/2007 |
| 7264716 | Membrane filtration manifold system A membrane filtration manifold for connecting a filter submodule including one or more elongate bundles of semipermeable polymeric fibers is provided. The manifold includes a housing and connecting collar connected with said housing. The collar is adapted to receive... | 09/04/2007 |
| 7226541 | Membrane polymer compositions The invention relates to a terpolymer of tetrafluoroethylene (TFE) monomer, polyvinylidene fluoride (PVDF) monomer and hexafluoropropylene (HFP) monomer for forming an ultrafiltration or microfiltration membrane, method of forming said membranes, and to the ultrafil... | 06/05/2007 |