UASB treatment of a highly alkaline fruit-cannery lye-peeling wastewater
dc.contributor.author | Sigge G.O. | |
dc.contributor.author | Britz T.J. | |
dc.date.accessioned | 2011-05-15T15:58:10Z | |
dc.date.available | 2011-05-15T15:58:10Z | |
dc.date.issued | 2007 | |
dc.description.abstract | Anaerobic treatment of a highly alkaline fruit-cannery lye-peeling wastewater was investigated, using an upflow anaerobic sludge blanket (UASB) reactor. Only a short initialisation period was required before COD reduction and OLR had stabilised at 85 to 90% and 2.40 kgCOD·m -3·d-1, respectively. With subsequent increases in OLR to 8.1 kgCOD·m-3·d-1, the COD reduction remained between 85 and 93% and biogas production peaked at 4.1 ℓ·d-1 (63% methane). COD and reactor pH started to decrease after 111 d. Decreases in gas production were observed by Day 102, decreasing to 2.48 ℓ·d-1 by Day 111 and 0.93 ℓ·d-1 after 129 d. Subsequent reductions in the OLR, by reducing influent COD, had no effect on reactor stability. Loss of reactor performance was ascribed to the accumulation of sodium (potentially > 20 000 mg·ℓ-1) within the reactor biomass, leading to inhibition of methanogenesis. | |
dc.description.version | Article | |
dc.identifier.citation | Water SA | |
dc.identifier.citation | 33 | |
dc.identifier.citation | 2 | |
dc.identifier.issn | 3784738 | |
dc.identifier.uri | http://hdl.handle.net/10019.1/10814 | |
dc.subject | Anaerobic digestion | |
dc.subject | Biomass | |
dc.subject | Chemical oxygen demand | |
dc.subject | Chemical reactors | |
dc.subject | pH effects | |
dc.subject | Fruit cannery | |
dc.subject | Methanogenesis | |
dc.subject | upflow anaerobic sludge blanket (UASB) reactor | |
dc.subject | Wastewater treatment | |
dc.subject | Anaerobic digestion | |
dc.subject | Biomass | |
dc.subject | Chemical oxygen demand | |
dc.subject | Chemical reactors | |
dc.subject | pH effects | |
dc.subject | Wastewater treatment | |
dc.subject | activated sludge | |
dc.subject | alkalinity | |
dc.subject | anoxic conditions | |
dc.subject | chemical oxygen demand | |
dc.subject | pH | |
dc.subject | sodium | |
dc.subject | waste treatment | |
dc.subject | wastewater | |
dc.title | UASB treatment of a highly alkaline fruit-cannery lye-peeling wastewater | |
dc.type | Article |