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Please use this identifier to cite or link to this item: http://dspace.lib.cranfield.ac.uk/handle/1826/4123

Document Type: Conference paper
Title: Development and application of an Enzymatic Hydrolysis test to assess the biodegradability of organic waste material
Authors: Wagland, Stuart Thomas
Smith, Richard
Godley, A. R.
Tyrrel, Sean F.
Blakey, N.
Issue Date: 2007
Citation: S.T. Wagland, R. Smith, A.R. Godley, S.F. Tyrrel, N. Blakey. Development and application of an Enzymatic Hydrolysis test to assess the biodegradability of organic waste material, Proceedings of the Eleventh International Waste Management and Landfill Symposium. S. Margherita di Pula, Cagliari, Italy. 1-5 October 2007. Paper 415.
Abstract: A novel and rapid biodegradability test method has been developed based on the enzymatic hydrolysis of cellulose. The test method consists of three phases, in which the first two phases consist of the pH buffer addition, and then autoclaving of the mixture and the final phase is the addition of the enzyme mixture and incubation. An initial investigation was carried out to determine the optimum conditions for the enzymes using standard commercial cellulose as the substrate. The optimised test was then applied to a wide range of organic waste samples including untreated and treated MSW derived mixed BMW, and specific wastes such as waste wood, packaging waste (cardboard), turkey feathers and green waste. The DOC released by enzymatic hydrolysis indicates that this could give an indication of the sample biodegradability. However the DOC released in phases 1 and 2 may also contain some biodegradable components (depending on the extent of biological treatment applied to the waste sample) and these would need to be differentiated from the non-biodegradable DOC and used together with the DOC from phase 3 to give the best possible biodegradability indication.
URI: http://dspace.lib.cranfield.ac.uk/handle/1826/4123
Appears in Collections:Staff publications - School of Applied Sciences

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