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Effects of Aerobic and Non-Aerobic Starvation on SBR Performance When Treating Saline Wastewater
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  • Journal title : Environmental Engineering Research
  • Volume 17, Issue 3,  2012, pp.139-144
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2012.17.3.139
 Title & Authors
Effects of Aerobic and Non-Aerobic Starvation on SBR Performance When Treating Saline Wastewater
Moon, Byung-Hyun; Park, Kyung-Hun; Kim, Sang-Soo; Yoon, Cho-Hee;
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 Abstract
In this study, the effects of starvation on floc characteristics when treating saline wastewater using a sequencing batch reactor (SBR) were investigated. The effectiveness over 5 days of starvation for aerobic and non-aerobic strategies for maintaining the physical characteristics of floc-forming sludge and the recovery period needed to regain the initial pollutant removal efficiency were investigated. Experiment results revealed that the sludge volume index (SVI) increased and the floc size and fractal dimension decreased after starvation under both aerobic and non-aerobic conditions. Sludge settleability deteriorated faster under aerobic conditions compared to non-aerobic conditions. Under non-aerobic conditions, the SBR required less time to return to its initial pollutant removal efficiency and settleability. Floc size, fractal dimension, and SVI were observed to be fairly correlated with each other. The results demonstrated that it was better to maintain the sludge under non-aerobic rather than aerobic starvation, because it adapted to, resisted starvation and had a quicker re-start afterward.
 Keywords
Floc characteristics;Fractal dimension;Recovery time;Sequencing batch reactor;Starvation;
 Language
English
 Cited by
1.
Environmental Engineering Research in September 2012,;

Environmental Engineering Research, 2012. vol.17. 3, pp.123-124 crossref(new window)
1.
Environmental Engineering Research in September 2012, Environmental Engineering Research, 2012, 17, 3, 123  crossref(new windwow)
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