| 摘要 |
An apparatus or system has a permeate pipe, alternately called a header, connected to a membrane unit, alternately called a cassette or a train of cassettes. A tank for holding the membrane unit has a notched portion in a top edge of a wall of the tank for receiving the permeate pipe. One or more members of fillers substantially fill the area of the notched portion not occupied by the permeate pipe. One or more seals seal the outside of the permeate pipe, directly or indirectly, for example through the filler or member, to the tank wall. The membrane unit may be installed by lowering it into the tank such that the permeate pipe is lowered into the notch, placing the one or more fillers in position in the notch and effecting the one or more seals.
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