1.概况 加拿大是世界主要产铀国之一。据报道,到1983年止加拿大铀水冶厂产生的尾矿总量达1.4亿吨,尾矿所复盖的面积大于1000英亩。预计到2000年总尾矿量将达3亿吨。 从五十年代中期开始,加拿大安大略省就开始了采铀。加拿大是湖泊非常多的国家。考虑到这一特点,将尾矿储存在小湖泊中或洼地上。所形成的尾矿库面积很大,但尾矿坝却不高,属于湖泊洼地型库。如丹尼森水冶厂年处理量为375万吨,由于尾矿填湖已基本上把威廉斯湖、史密斯湖和长湖等三个湖填掉,共筑坝21座,主要防止埃里奥特湖矿区边上的风景区夸克湖水受到污染。 1. Overview Canada is one of the world’s major uranium producing countries. It is reported that by 1983, the total amount of tailings produced by the Canadian uranium watermelt mill reached 140 million tons and the tailings covered an area of ​​more than 1,000 acres. Total tailings is estimated to reach 300 million tons by the year 2000. Since the mid-1950s, Uranium mining began in Ontario, Canada. Canada is a very lagoon country. With this in mind, the tailings are stored in small lakes or in depressions. The formation of a large tailings reservoir area, but the tailings dam is not high, belonging to the lake depression reservoir. Such as Denison Water Treatment Plant annual capacity of 3.75 million tons, as the tailings fill the lake has basically Williams Lake, Lake and Lake, Lake fill the three lakes, a total of dam 21, mainly to prevent Eleo Quaker lake scenic spot on the edge of the special lake mining area was polluted.