Continuous treatment of the organic fraction of municipal solid waste in an anaerobic two-stage membrane process (Paper)
Paper
Paper/Presentation Title | Continuous treatment of the organic fraction of municipal solid waste in an anaerobic two-stage membrane process (Paper) |
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Presentation Type | Paper |
Authors | Trzcinski, A. P. (Author) and Stuckey, D. C. (Author) |
Journal or Proceedings Title | Proceedings of Vth International Symposium on Anaerobic Digestion of Solid Wastes and Energy Crops (Vth ISAD-SW&EC 2008) |
Number of Pages | 8 |
Year | 2008 |
Conference/Event | 5th International Symposium on Anaerobic Digestion of Solid Wastes and Energy Crops (ISAD-SW&EC 2008) |
Event Details | 5th International Symposium on Anaerobic Digestion of Solid Wastes and Energy Crops (ISAD-SW&EC 2008) Event Date 25 to end of 28 May 2008 Event Location Hammamet, Tunisia |
Abstract | The stability of a two-stage anaerobic membrane process was investigated at different organic loading rates (OLR) and Hydraulic Retention Times (HRT) over 200 days. The Hydrolytic Reactor (HR) was fed semi-continuously with the Organic Fraction of Municipal Solid Waste (OFMSW), while the leachate from the HR was fed continuously to two Submerged Anaerobic Membrane Bioreactors (SAMBR). The Total COD (TCOD) of the leachate varied over a wide range, typically between 4000 and 26,000 mg/L and the Soluble COD (SCOD) in the permeate of both SAMBRs was in the range 400-600 mg/L, achieving a COD removal greater than 90% at a HRT of 1.6-2.3 days. The operation was not sustainable below this HRT due to a membrane flux limitation at 0.54-0.78 L/m².h (LMH), which was linked to the increasing MLTSS. SCOD in the permeate did not build up indicating a slow degradation of recalcitrants over time. SAMBR2 was run in parallel with SAMBR1 but its permeate was treated aerobically in an Aerated Membrane Bioreactor (AMBR). The AMBR acted as a COD-polishing and ammonia removal step. About 26% of the recalcitrant SCOD from SAMBR2 could be aerobically degraded in the AMBR. In addition, 97.7 % of the ammonia-nitrogen was converted to nitrate in the AMBR at a maximum nitrogen loading rate of 0.18 kg NH4+-N/m³.day. |
Keywords | membrane bioreactor, nitrification, Municipal Solid Waste, two-stage process, recalcitrants |
ANZSRC Field of Research 2020 | 400410. Wastewater treatment processes |
410404. Environmental management | |
401102. Environmentally sustainable engineering | |
Public Notes | There are no files associated with this item. |
Byline Affiliations | Imperial College London, United Kingdom |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4w23/continuous-treatment-of-the-organic-fraction-of-municipal-solid-waste-in-an-anaerobic-two-stage-membrane-process-paper
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