Continuous treatment of the organic fraction of municipal solid waste in an anaerobic two-stage membrane process (Paper)

Trzcinski, A. P. and Stuckey, D. C. (2008) Continuous treatment of the organic fraction of municipal solid waste in an anaerobic two-stage membrane process (Paper). In: Vth International Symposium on Anaerobic Digestion of Solid Wastes and Energy Crops (ISAD-SW&EC 2008) , 25-28 May 2008, 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.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Unable to source further information.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Surveying and Land Information
Date Deposited: 10 Jul 2018 01:51
Last Modified: 10 Jul 2018 02:19
Uncontrolled Keywords: membrane bioreactor, nitrification, Municipal Solid Waste, two-stage process, recalcitrants
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090409 Wastewater Treatment Processes
05 Environmental Sciences > 0502 Environmental Science and Management > 050205 Environmental Management
09 Engineering > 0907 Environmental Engineering > 090703 Environmental Technologies
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970105 Expanding Knowledge in the Environmental Sciences
E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
D Environment > 96 Environment > 9609 Land and Water Management > 960912 Urban and Industrial Water Management
URI: http://eprints.usq.edu.au/id/eprint/34434

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