To: John Ripley who wrote (3100 ) 4/3/1999 5:21:00 AM From: E. Charters Read Replies (4) | Respond to of 3744
Well kids, now let's tell the truth. Within a few days, free cyanide in water is completely destroyed by natural ultraviolet light. Where iron and copper are present, as is often the case in nature, cyanide readily forms harmless compounds with these metals. As a matter of fact, mill managers have the hardest time to keep free cyanide "alive" because of the ubiquitous cyanide "poisons" that destroy it. There are many commercial processes that easily dispose of cyanide safely and completely, two of them in use are the Hydrogen Peroxide and Chlorine processes. After chlorination of water in the parts per million, cyanide is 100% destroyed. Further, if the Ph of the water is brought below 6.5, which is easily achievable, it is again impossible to retain cyanide in aqueous solution. Cyanide in the environment, as we know in Canada after 100 years of gold mining is a complete non- issue. There is not one lake polluted with cyanide, nor one lake's fish stocks depleted because of its use. Believe me, I have lived in about 6 communities that have used more of that chemical than all the mines in the States have so far and have personal knowledge of this. The document on this website is full of propaganda and half truths. Summitville has zero problem with cyanide. Its problem, which is natural and precedes the mining of the site by perhaps 100 million years, is copper leaching from the rock in the mountain. God put the river and the copper there, so complain to him. If you want the correct information on cyanide and its environmental controls contact the Ministry of Northern Development and Mines in Sudbury, Ontario, Canada and ask for the relevant specialist. This is a government branch that deals with mining in Ontario and I doubt that they will give out any data that is in danger of rebuke from knowledgeable authority. EC<:-}