Abstract
Performance of a wastewater treatment system utilizing a sulfur-redox reaction of microbes was investigated using a pilot-scale reactor that was fed with actual sewage. The system consisted of an up-flow anaerobic sludge blanket (UASB) reactor and a down-flow hanging sponge (DHS) reactor with a recirculation line. Consequently, the total CODCr (465±147mgL-1; total BOD of 207±68mgL-1) at the influent was reduced (70±14mgL-1; total BOD of 9±2mgL-1) at the DHS effluent under the conditions of an overall hydraulic retention time of 12h, a recirculation ratio of 2, and a low-sewage temperature of 7.0±2.8°C. A microbial analysis revealed that sulfate-reducing bacteria contributed to the degradation of organic matter in the UASB reactor even in low temperatures. The utilized sulfur-redox reaction is applicable for low-strength wastewater treatment under low-temperature conditions.
Original language | English |
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Pages (from-to) | 753-757 |
Number of pages | 5 |
Journal | Bioresource Technology |
Volume | 102 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2011 Jan |
Keywords
- Actual sewage
- DHS
- Sulfur-redox reaction
- UASB
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal