Can we decode the messages of activated sludge through the respirograms?
Article
Article Title | Can we decode the messages of activated sludge through the respirograms? |
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ERA Journal ID | 1992 |
Article Category | Article |
Authors | Hoque, Muhammad A. (Author), Aravinthan, Vasantha (Author) and Pradhan, Nishant M. (Author) |
Journal Title | Water, Air and Soil Pollution: an international journal of environmental pollution |
Journal Citation | 9 (5/6), pp. 449-459 |
Number of Pages | 11 |
Year | 2009 |
Place of Publication | Leiden, Netherlands |
ISSN | 0049-6979 |
1567-7230 | |
1573-2932 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11267-009-9238-6 |
Abstract | Wastewater contains varieties of carbonaceous and nitrogenous compounds that undergo complicated biodegradation process in wastewater treatment plants. How these different compounds are degraded by activated sludge in aerobic conditions is still a mystery. Researchers have been trying to interpret it using the oxygen uptake rate (OUR) derived from the respirograms of respective substrates. Several models have been proposed to interpret the substrate removal mechanisms using the experimental observations. Have we succeeded in understanding the messages by activated sludge correctly using these models? In this paper, the distinctive nature of the respirograms when activated sludge is fed with different substrates and the biokinetic models that have been developed to explain the substrate removal mechanisms using derived OUR profiles are reviewed. In addition, a sensitivity study was conducted on the recently evolved simultaneous storage and growth model to investigate the influence of key parameters on OUR profiles during the biodegradation process. |
Keywords | respirogram; oxygen uptake rate (OUR); substrate removal mechanisms; activated sludge models |
ANZSRC Field of Research 2020 | 401199. Environmental engineering not elsewhere classified |
400410. Wastewater treatment processes | |
349999. Other chemical sciences not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Australian Centre for Sustainable Catchments |
https://research.usq.edu.au/item/9z410/can-we-decode-the-messages-of-activated-sludge-through-the-respirograms
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