Process for producing reclaimed water and system for producing reclaimed water
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United States of America Patent
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May 12, 2015
Grant Date -
Feb 9, 2012
app pub date -
Sep 22, 2011
filing date -
Mar 27, 2009
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Abstract
The process includes operation as follows: putting ozone generated by an ozone generator into raw water, in a normal mode, to subject the raw water to ozone treatment; injecting a flocculant into the raw water before or after the ozone treatment; filtering the raw water by a separation membrane after the ozone treatment and the injection of the flocculant; and intermittently setting cleaning mode to put a larger quantity of cleaning ozone than that in the normal mode into the raw water so as to intermittently increase the concentration of dissolved ozone, thereby cleaning the filtration membrane.
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