Development and calibration of bio-kinetic model for surfactant biodegradation with combined respirometric and titrimetric measurements

Aravinthan, V. and Hoque, M. A. (2011) Development and calibration of bio-kinetic model for surfactant biodegradation with combined respirometric and titrimetric measurements. Bioresource Technology, 102 (9). pp. 5504-5513. ISSN 0960-8524

Abstract

Substrate removal mechanism in aerobic activated sludge processes was lately modeled using the simultaneous storage and growth (SSAG) phenomenon. The SSAG model was further refined with titrimetric components and successfully calibrated using both respirometric and titrimetric measurements for common substrate acetate. However, the improved SSAG model calibration was not verified with other organic substrates. Furthermore, very few studies are available in the literature on surfactant bio-kinetics, which generally use off-line experimental measurements with limited model-based interpretation. Therefore, the aim of this paper is to demonstrate its applicability for surfactant biodegradation using on-line measurements. Batch experiments were conducted using sodium dodecyl sulfate (SDS) as a test surfactant. Model calibration was done successfully for three different SDS concentrations using respirometric, titrimetric and combined respirometric–titrimetric measurement approaches. The parameter estimation results from all three stated combinations were statistically evaluated and found to be very close validating the model.


Statistics for USQ ePrint 18875
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to published version due to publisher copyright policy. Special Issue on Challenges in Environmental Science and Engineering, CESE-2010: Technological Advances in Waste Special Issue on Challenges in Environmental Science and Engineering, CESE-2010: Technological Advances in Waste Treatment for a Sustainable Future Edited by Veeriah Jegatheesan, Li Shu, Jurate Virkutyte and Chia-Yuan Chang.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 05 May 2011 04:45
Last Modified: 24 Aug 2014 23:24
Uncontrolled Keywords: sodium dodecyl sulfate (SDS); model calibration; parameter estimation; simultaneous storage and growth (SSAG); respirometric and titrimetric measurements
Fields of Research (FOR2008): 09 Engineering > 0907 Environmental Engineering > 090702 Environmental Engineering Modelling
03 Chemical Sciences > 0304 Medicinal and Biomolecular Chemistry > 030402 Biomolecular Modelling and Design
09 Engineering > 0904 Chemical Engineering > 090401 Carbon Capture Engineering (excl. Sequestration)
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1016/j.biortech.2010.08.101
URI: http://eprints.usq.edu.au/id/eprint/18875

Actions (login required)

View Item Archive Repository Staff Only