Abstract
Low-temperature, or psychrophilic (<20°C) anaerobic digestion has been proven feasible for the mineralisation of simple wastewaters. In this study, hybrid expanded granular sludge bed-anaerobic filter (EGSB-AF) bioreactors were used to evaluate the feasibility of psychrophilic digestion for the treatment of phenol-containing wastewater. Efficient chemical oxygen demand and phenol removal were observed at organic and phenol loading rates of 5 kg COD m-3 d-1 and 0.4-1.2 kg phenol m-3 d -1 (400-1200 mg phenol [l wastewater]-1), respectively. There was no long-term accumulation of volatile fatty acids in the reactor systems. Methanogenic activity was developed under psychrophilic conditions but anaerobic methane-producing populations remained mesophilic throughout the trial of 415 days.
Original language | English |
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Pages (from-to) | 1614-1620 |
Number of pages | 7 |
Journal | Water Research |
Volume | 39 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Apr 2005 |
Keywords
- EGSB
- Phenol
- Psychrophilic anaerobic digestion
- Specific methanogenic activity
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Collins, G;Foy, C;McHugh, S;Mahony, T;O'Flaherty, V
- Collins, G., Foy, C., Mchugh, S., Mahony, T., O'Flaherty, V.
- Collins, G,Foy, C,McHugh, S,Mahony, T,O'Flaherty, V