Autothermal Thermophilic Aerobic Digestion: A Two-Year Appraisal of Canadian Facilities

by Harlan G. Kelly, Dayton & Knight Ltd, West Vancouver, Canada,

Document Type: Proceeding Paper

Part of: Environmental Engineering


Full scale, autothermal thermophilic aerobic digestion (ATAD) facilities were constructed or upgraded in 1988 to demonstrate high temperature aerobic digestion of municipal sludges at three small publicly owned wastewater treatment plants in British Columbia, Canada. Other Canadian installations were later completed in Banff, Alberta, by others in early 1990, and in the Resort Municipality of Whistler, British Columbia under the author's supervision in late 1990. The results of the two year investigation of the three demonstration facilities were used to develop the criteria for the Whistler ATAD facility. The paper presents findings of the 1989 demonstration study and reviews selected design parameters for the Whistler operation.

Subject Headings: Waste treatment | Aerobic processes | Public buildings | Sludge | Municipal wastewater | Wastewater treatment plants | Sewage | Municipal wastes | Canada | British Columbia | Alberta

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