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Showing Abstract of Effect of process variables in the production of Polyhydroxyalkanoates (PHAs) by activated sludge.

 
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[ Downloads: 0 | Abstract Viewed: 97 | Pages: 8 ]
Title

Effect of process variables in the production of Polyhydroxyalkanoates (PHAs) by activated sludge.

Topic: Sewage Published Year: 2007
Presentation: Poster
 Published in:

[ 1st Conference of Environmental Engineering ]

Original Language: Persian Full Text Size: Not Available

 

Abstract of the Article

 

Note: English CIVILICA is in its Trial Period so Full Texts can not be provided! Persian users can download it here

Download This article in PDF format Effect of process variables in the production of Polyhydroxyalkanoates (PHAs) by activated sludge.

 

Authors:
[ Mokhtarani ] -
[ Ganjidust ] -
[ Kaleghi Sarnami ] -

 

Abstract:

PHAS is known to be temporarily stored by microorganisms in activated sludge, especially in the anaerobic-aerobic processes. The aim of this study was the possibility of using activated sludge for the production of PHAs focusing on increasing the PHA content of activated sludge. In this research the effect of SRT and HRT of aerobic zone in influent were studied. It was found that activated sludge with an SRT of 15 days and HRT of 6.7 hr possessed better PHAs production capability. In order to further increase the PHAS content of activated sludge the effect of C/N in PHAS Production reactor was also studied. As a result, it was found that PHAs contents of MLSS were achieved up to maximum by using C: N ratio of 25. It was also concluded that wastewater including nitrogenous compounds might also be applicable as carbon source for PHAs production.

 

Keywords:

Activated sludge; Biodegradable plastics; Carbon to nitrogen ratio; Sludge retention time (SRT), Hydraulic retention time (HRT)

 

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