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Determination of KLa, COD fractionations and Heterotrophic yield of palm oil mill effluent (POME)

Damayanti, A.; Ujang, Z.; Salim, R.; Ahmad, Z. and Olsson, Gustaf LU (2008) Asia Water Conference 2008
Abstract
Activated sludge models (ASMs) have been widely used as a basis for further model development in wastewater treatment processes. Values for parameters to be used are vital for the accuracy of the modeling approach. A continuous stirred tank reactor (CSTR), as open respirometer with continuous flow for 20 h is used in ASMs. The dissolved oxygen (DO) profile for 11 days was monitored. It was found the mass transfer coefficient KLa is 0.3 h−1 during lag and start feed phase and 0.01 h−1 during stop feed phase, while the heterotrophic yield coefficient YH is 0.44. Some of the chemical oxygen demand (COD) fractionations of palm oil mill effluent (POME) using respirometric test in ASM models are Ss 50 mg/L, SI 16,600 mg/L, XS 25,550 mg/L, and XI... (More)
Activated sludge models (ASMs) have been widely used as a basis for further model development in wastewater treatment processes. Values for parameters to be used are vital for the accuracy of the modeling approach. A continuous stirred tank reactor (CSTR), as open respirometer with continuous flow for 20 h is used in ASMs. The dissolved oxygen (DO) profile for 11 days was monitored. It was found the mass transfer coefficient KLa is 0.3 h−1 during lag and start feed phase and 0.01 h−1 during stop feed phase, while the heterotrophic yield coefficient YH is 0.44. Some of the chemical oxygen demand (COD) fractionations of palm oil mill effluent (POME) using respirometric test in ASM models are Ss 50 mg/L, SI 16,600 mg/L, XS 25,550 mg/L, and XI 2,800 mg/L. The comparison of experimental and ASM1 from OUR concentration is found to fit well. (Less)
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author
organization
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Contribution to conference
publication status
published
subject
keywords
Activated sludge models, COD fractionations, Palm oil mill effluent, Respirometry test
conference name
Asia Water Conference 2008
language
English
LU publication?
yes
id
ce56c756-2639-447d-8804-acfe643db49e (old id 4360747)
date added to LUP
2014-03-27 11:43:25
date last changed
2016-04-16 10:41:58
@misc{ce56c756-2639-447d-8804-acfe643db49e,
  abstract     = {Activated sludge models (ASMs) have been widely used as a basis for further model development in wastewater treatment processes. Values for parameters to be used are vital for the accuracy of the modeling approach. A continuous stirred tank reactor (CSTR), as open respirometer with continuous flow for 20 h is used in ASMs. The dissolved oxygen (DO) profile for 11 days was monitored. It was found the mass transfer coefficient KLa is 0.3 h−1 during lag and start feed phase and 0.01 h−1 during stop feed phase, while the heterotrophic yield coefficient YH is 0.44. Some of the chemical oxygen demand (COD) fractionations of palm oil mill effluent (POME) using respirometric test in ASM models are Ss 50 mg/L, SI 16,600 mg/L, XS 25,550 mg/L, and XI 2,800 mg/L. The comparison of experimental and ASM1 from OUR concentration is found to fit well.},
  author       = {Damayanti, A. and Ujang, Z. and Salim, R. and Ahmad, Z. and Olsson, Gustaf},
  keyword      = {Activated sludge models,COD fractionations,Palm oil mill effluent,Respirometry test},
  language     = {eng},
  title        = {Determination of KLa, COD fractionations and Heterotrophic yield of palm oil mill effluent (POME)},
  year         = {2008},
}