Peak flow management in wastewater treatment using direct membrane filtration
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United States of America Patent
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Apr 7, 2015
Grant Date -
Oct 11, 2012
app pub date -
Dec 17, 2010
filing date -
Dec 18, 2009
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Abstract
A biological wastewater treatment system includes an equalization tank for sending a defined first portion of the wastewater to a submerged membrane filter. When the quantity of the received wastewater exceeds the defined first portion, a second portion of wastewater, formed from the wastewater that exceeds the defined first portion, is sent to a filtration process. The filtration process includes adding a flocculating agent to the second portion entering filtration, filtering the second portion, thereby producing retentive waste including flocculated material, and then sending the retentive waste to the submerged membrane filter.
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