Performance evaluation and mathematical modelling of granular activated carbon biofiltration in wastewater treatment |
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Authors: | Thi To Loan Hoang Saravanamuthu Vigneswaran Huu Hao Ngo Jaya Kandasamy Wang Geun Shim Dungananda Singh Chaudhary Pavan Gotety Paul Peiris |
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Affiliation: | (1) Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW, 2007, Australia;(2) Faculty of Applied Chemistry, Chonnam National University, Gwangju, 500-757, Korea;(3) School of Natural Sciences, Univ of Western Sydney, Sydney, Australia |
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Abstract: | Biological filtration is an effective technique for removing organic matter from wastewater. The performance of a biofilter
can be influenced by a range of operational conditions. In this study the performance of biofilters was investigated for the
influence of filter media depth, influent concentrations, filtrations rates and backwashing. The results show that performance
of GAC filters decreased with shallower filter bed depths. In addition, the GAC performed better at lower influent concentration
and lower filtration rates. The daily backwash adopted to avoid the physical clogging of the biofilter did not have any significant
effect on the organic removal efficiency of the filter. The concentration, activity and characteristics of the biomass are
quantified and described. A mathematical model was developed to simulate the organic removal of the GAC biofiltration system.
The performance of the GAC filter under different influent organic concentration levels, filtration rates and filter bed depths
was adequately simulated by the mathematical model developed for this study. |
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Keywords: | Biofilter GAC Organics Biomass Mathematical Modelling |
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