| 摘要 |
Methods and apparatus are provided for positioning a plurality of cylindrical spirally wound membrane filtration elements in a body of aqueous feedstock employing manifold conduits that support vertically aligned filtration elements via short lengths of pipe. Efficient and effective connections are made between the ends of such support pipes and the adjacent end of each filtration element by bayonet-type fittings, which allow straightforward, detachable interconnection by axially moving the cylindrical element into place and then rotating the element a quarter turn. Support in this manner provides full access to the open lower ends of the element through which, during operation, streams of rising gas bubbles are caused to pass, fed from underlying bubblers or the like. The manifold conduits may be located either above or below the preferably vertically oriented filtration elements.
|
