PRODUCTION OF PHAS BY ACTIVATED SLUDGE USING MUNICIPAL WASTEWATER

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GANJIDOUST H.; MOKHTARANI N.; AYATI B.; JAFARPOUR MOSTAFA

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Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2010 | Volume:29 | Issue:3 Page(s): 169-177

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Information Journal Paper

Title

PRODUCTION OF PHAS BY ACTIVATED SLUDGE USING MUNICIPAL WASTEWATER

Author(s)

GANJIDOUST H. | MOKHTARANI N. | AYATI B. | JAFARPOUR MOSTAFA | Issue Writer Certificate

Keywords

ACTIVATED SLUDGEQ3

POLYHYDROXYALKANOATE (PHA)Q3

AERATION TIMEQ3

CELL RETENTION TIMEQ3

TAGUCHIQ2

Abstract

Among the degradables plastics that has been fabricated so far, Poly Hydroxy Alkanoates (PHAs) have been attracted because of their complete degradability, low production cost, and also their simple processing compared to other biodegradable polymers. Considering the disposals of plastic waste and excess sludge of wastewater treatment plant problems and production expences reduction, the possibility of producing PHA by treating ACTIVATED SLUDGE and determining the optimum condition for increasing PHA production were the main issues of this paper. In this research, an anaerobic-aerobic SBR was used to make micro-organism adapted and a batch aerobic reactor was used for its enrichment. Four parameters of sludge retention time, AERATION TIME, volatile fatty acid in municipal wastewater, and optimum carbon source determination for micro-organism enrichment have been studied. First, the rate of acetate and propionate uptake by ACTIVATED SLUDGE was determined in primary experiments in range of 30-32 and 15-17 mg C. L-1.h-1.g-1 SS in 24 hours were allocated for the production of polymer. In main experiments, TAGUCHI Method was employed for experiments design. Three levels were assigned for each of these four parameters, nine experimental runs were carried out and the results were analyzed through QUALITEK-4 software. Sludge retention time and AERATION TIME were determined to be 10 days and 3 hours, respectively. Finaly, municipal wastewater containing acetate and propionate as the carbon sources in polymer production reactor were found to be the optimum condition. Results from TAGUCHI Method revealed that in optimum condition the sludge of municipal wastewater can produce PHA up 12.6% of sludge dry weight.

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APA: Copy

GANJIDOUST, H., MOKHTARANI, N., AYATI, B., & JAFARPOUR, MOSTAFA. (2010). PRODUCTION OF PHAS BY ACTIVATED SLUDGE USING MUNICIPAL WASTEWATER. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), 29(3), 169-177. SID. https://sid.ir/paper/26160/en

Vancouver: Copy

GANJIDOUST H., MOKHTARANI N., AYATI B., JAFARPOUR MOSTAFA. PRODUCTION OF PHAS BY ACTIVATED SLUDGE USING MUNICIPAL WASTEWATER. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)[Internet]. 2010;29(3):169-177. Available from: https://sid.ir/paper/26160/en

IEEE: Copy

H. GANJIDOUST, N. MOKHTARANI, B. AYATI, and MOSTAFA JAFARPOUR, “PRODUCTION OF PHAS BY ACTIVATED SLUDGE USING MUNICIPAL WASTEWATER,” NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), vol. 29, no. 3, pp. 169–177, 2010, [Online]. Available: https://sid.ir/paper/26160/en

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