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Reclamation of mill tailings

机译：回收矿渣

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The last paragraph of J. V. Subbaraman's letter (Curr. Sci., 2001, 81, 631-632) makes sad reading. In this era of rapid scientific advancements, it is out of place to concede defeat to environmental hazards created by man. Environmental restoration, particularly reclamation of tailings of mining activity, is in vogue for almost four decadesI and has been given an exhaustive scientific base in 1981 by Bradshaw, Liverpool University. When methods for stabilization of tailings are well known, we should be trying to go a step further and make the tailing dumps productive, especially since the Kolar gold mill tailings do not appear to be toxic according to table 1 of the letter cited above. Even for toxic tailings, monitoring the quality of plants grown on it is advised, to decide their consumption by cattle. I have seen cattle grazing on grass cultivated for stabilization of lead-zinc mine tailings in Derbyshire in the UK, where safety of cattle was ensured by manipulating rotational grazing practice.
机译：萨巴拉曼（J. V. Subbaraman）的书信的最后一段（Curr。Sci。，2001，81，631-632）令人沮丧。在这个科学飞速发展的时代，屈服于人类造成的环境危害已不合时宜。近四十年来，环境恢复，特别是采矿活动的尾矿的回收一直在流行，并且利物浦大学的布拉德肖在1981年给予了详尽的科学依据。当稳定尾矿的方法广为人知时，我们应该尝试更进一步，使尾矿堆更富生产力，特别是因为根据上述引用信的表1，可拉尔金矿厂的尾矿似乎没有毒性。即使是有毒的尾矿，也建议监测在其上生长的植物的质量，以决定牛的食用量。在英国的德比郡，我已经看到过在为稳定铅锌矿尾矿而种植的草地上放牧的牛，那里通过实施轮牧来确保牛的安全。

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