A kinetic model of a recirculated upflow anaerobic sludge blanket treating phenolic wastewater

Ten-Chin Wen, S. S. Cheng, J. J. Lay

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Sludge taken from a recirculated upflow anaerobic sludge blanket (RUASB) treating phenolic wastewater at organic loadings of 6, 12, 16, and 20 kg COD/m3 day was tested by the biochemical methane potential (BMP) method at intervals over a three-year period for an accurate determination of the specific gas production rate. A modified version of the Haldane equation was used in the selection of a statistically significant model describing this process. Statistical diagnosis was carried out with student t-test, Durbin- Watson test for two-tail distribution and Kalmogorov-Smirmov statistical approach. The estimated ranges of the maximum specific reaction rate, K; saturation constant, K(s); inhibitor constant, K(i); and the order of inhibition, n were as follows: 280-764 mL biogas/gVSS-day, 202-398 mg phenol/L, 516-880 mg phenol/L, and 1.47-2.51, respectively. The physical meaning of these parameters is explained. BMP tests with sludge taken from the recirculating upflow anaerobic sludge blanket (RUASB) bioreactor running at a loading of 14 kg COD/m3 day validated the effectiveness of the selected model through comparisons of experimental data and predictions. The results indicate that model predictions accurately reflect experimental data within one standard deviation.

Original languageEnglish
Pages (from-to)794-799
Number of pages6
JournalWater Environment Research
Volume66
Issue number6
DOIs
Publication statusPublished - 1994 Jan 1

Fingerprint

Wastewater
sludge
Methane
Phenol
wastewater
kinetics
Phenols
Kinetics
phenol
Biofuels
methane
Biogas
Bioreactors
Reaction rates
prediction
Gases
biogas
gas production
bioreactor
reaction rate

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology

Cite this

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abstract = "Sludge taken from a recirculated upflow anaerobic sludge blanket (RUASB) treating phenolic wastewater at organic loadings of 6, 12, 16, and 20 kg COD/m3 day was tested by the biochemical methane potential (BMP) method at intervals over a three-year period for an accurate determination of the specific gas production rate. A modified version of the Haldane equation was used in the selection of a statistically significant model describing this process. Statistical diagnosis was carried out with student t-test, Durbin- Watson test for two-tail distribution and Kalmogorov-Smirmov statistical approach. The estimated ranges of the maximum specific reaction rate, K; saturation constant, K(s); inhibitor constant, K(i); and the order of inhibition, n were as follows: 280-764 mL biogas/gVSS-day, 202-398 mg phenol/L, 516-880 mg phenol/L, and 1.47-2.51, respectively. The physical meaning of these parameters is explained. BMP tests with sludge taken from the recirculating upflow anaerobic sludge blanket (RUASB) bioreactor running at a loading of 14 kg COD/m3 day validated the effectiveness of the selected model through comparisons of experimental data and predictions. The results indicate that model predictions accurately reflect experimental data within one standard deviation.",
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A kinetic model of a recirculated upflow anaerobic sludge blanket treating phenolic wastewater. / Wen, Ten-Chin; Cheng, S. S.; Lay, J. J.

In: Water Environment Research, Vol. 66, No. 6, 01.01.1994, p. 794-799.

Research output: Contribution to journalArticle

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