AERATED BIOFILM REACTOR HOLLOW FIBRE MEMBRANE
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United States of America Patent
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Jan 19, 2017
app pub date -
Mar 11, 2015
filing date -
Mar 11, 2014
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Abstract
The present invention is concerned with a hollow fibre membrane for use in a Membrane Supported Biofilm Reactor (MSBR) or the like, the hollow fibre membrane comprising a substantially cylindrical sidewall defining an internal lumen from which gas can permeate through the sidewall, and characterised in that at least a part of an outer surface of the fibre membrane is engineered to define at least one biofilm retaining region which acts to retain a quantity of biofilm therein, in particular when the fibre membrane is subjected to a high sheer biofilm control event, such as experienced during a reactor cleaning cycle, for removing excess biofilm in order to prevent clogging of the reactor.
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