Method for increasing PHAs content of waste sludge by fermenting the waste sludge to produce volatile fatty acid
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United States of America Patent
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Aug 18, 2020
Grant Date -
Jun 13, 2019
app pub date -
Jan 9, 2018
filing date -
Dec 7, 2017
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Abstract
The present invention relates to a method for increasing polyhydroxyalkanoates (PHAs) content of waste sludge, by taking the fermentation liquid fermented from waste sludge as a carbon source, and performing ADF domestication process, thereby quickly raising PHAs contentin the waste sludge, in accordance with the method of the present invention, the conventional complicated domestication steps is simplified and a higher content PHAs can be produced, additionally the added carbon source of the present invention is the VFA fermented by the waste sludge, so it's unnecessary to add extra material, therefore including more industrial utilization.
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