PROCESS FOR DISINFECTING A FILTRATION WORKS FOR PRETREATMENT OF SALTWATER, AND INSTALLATION FOR THE IMPLEMENTATION THEREOF
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United States of America Patent
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Issued Date -
Aug 4, 2011
app pub date -
Jun 24, 2009
filing date -
Jun 26, 2008
priority date (Note) -
Abandoned
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Abstract
Method for disinfecting a filtration works (F) for the pretreatment of salt water, particularly seawater, upstream of a water desalination unit (1) using a reverse osmosis membrane, whereby an operation of disinfecting the filtration works is carried out periodically by adding a bactericidal agent to the water that is to be pretreated, the filtration works being periodically subjected to a declogging operation; the operation of disinfecting the filtration works (F) is carried out during a declogging operation, and the liquid used for the declogging is formed of an aqueous declogging solution the salt content of which differs from the content of the water being pretreated; the bactericidal agent is added (14) to the declogging solution upstream of its injection into the filtration works (F).
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