| 摘要 |
A filtration membrane module comprises a filtration module submerged in a liquid within a processing tank. A single filtration module comprises two rectangular shaped sheets of membrane attached back to back and sealed around their outer edges. The backs of these membranes are separated from one another by a flexible material. Filtered water is drawn from within this filtration assembly by a number of permeate draw off points. By creating a pressure drop across the membrane surface, clean water filters through the membrane into the space between the two membrane sheets and will flow out through one of the permeate draw off points. The sealed membrane sheet assembly is assembled onto a rigid frame which consists of a number of vertical members, separated by top and bottom horizontal members. The membrane assembly forms a continuous vertical sheet with vertical passageways formed between the folds of these sheets.
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