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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11550

Title: Co-Composting of Organic Solid Waste and Sewage Sludge – A Waste Management Option for University Campus
Authors: Fei-Baffoe, Bernard
Osei, Kenneth
Agyapong, Eric Appiah
Nyankson, Eugene Atta
Keywords: Co-compositing
Organic solid waste
Sewage sludge
Compost quality
Waste Management option
Issue Date: 2015
Publisher: International Journal of Environment
Citation: International Journal of Environment, Volume-5, Issue-1, Dec-Feb 2015/16
Abstract: Co-composting organic solid waste with dewatered sewage sludge was carried out to determine its suitability for managing waste on a University campus. Windrow composting method was employed in which dewatered sewage sludge and organic solid waste were mixed at volume ratios: 1:1, 1:2, 1:3, 0:1 and 1:0 sludge/organic solid waste. Parameters such as pH, percentage N, C, P, K, Ca, Mg, organic matter, ash content and C/N ratio were determined weekly. Total and faecal coliform population were measured biweekly with Pb and Cd levels determined at the beginning and end of the composting. With the exception of ratio 1:0 sludge/organic solid waste, all other ratios attained a favourable Carbon to Nitrogen (C/N) ratio both at the start and end of the composting process. Levels of major nutrients measured were found to be favourable for use as organic fertilizer. There was a general decline in carbon and organic matter in all the compost piles except the sewage sludge pile (1:0). Apart from the compost ratio 1:0 sludge/organic solid waste, all other ratios attained a temperature of 55oC within 8 days of composting. Generally the compost ratios 1:2, 1:3 and 0:1 (sludge/organic solid waste) were found to be the most suitable for use as organic fertilizer.
Description: An article published in International Journal of Environment, Volume-5, Issue-1, Dec-Feb 2015/16
URI: http://hdl.handle.net/123456789/11550
ISSN: 2091-2854
Appears in Collections:College of Science

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