00000nam 2200000za 4500 9.865769 CaOODSP 20221107161859 m o d f cr ||||||||||| 181207s1977 onca ob f000 0 eng d 0660011719 (print) CaOODSP eng eng fre n-cn--- M38-13/77-11E-PDF M38-13/77-11 Mathieu, G. I. Ozonation for destruction of cyanide in Canadian gold mill effluents - a preliminary evaluation [electronic resource] / G.I. Mathieu. Ottawa : CANMET, Energy, Mines and Resources Canada, 1977. iii, 40 p. : ill. CANMET report ; 77-11 Cover title. "March 1977." "Minerals Research Program, Mineral Sciences Laboratories." Digitized edition from print [produced by Natural Resources Canada]. Includes bibliographical references (p. 26-28). "A literature search was made to determine whether ozonation would be technically and economically attractive for the treatment of cyanide-bearing gold mill effluents. The publications covered in this survey were those concerned with (1) recent advances in ozone generation and gas-liquid contacting devices of interest to cyanide oxidation, (2) conditions for a rapid and complete decomposition by ozone of both simple and complex cyanides commonly found in gold mine effluents and (3) cost of ozonation under these conditions. This state-of-the-art review shows that ozonation might be a valid alternative to conventional methods of cyanide detoxification of gold mill effluents. The ozonation process at the time of writing is relatively high in capital cost but low in operating cost compared with conventional processes"--Abstract, p. i. Includes abstract in French. Ozonation Cyanide wastes Gold mines and mining--Waste disposal Ore-dressing plants--Waste disposal Canada. Energy, Mines and Resources Canada. Canada Centre for Mineral and Energy Technology. Minerals Research Program (Canada) Mineral Sciences Laboratories (Canada) CANMET report ; 77-11. (CaOODSP)9.852792 PDF 1.22 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m38-13/M38-13-77-11-eng.pdf 307151