Processes for extracting metals from the slurry and recovery rates of them, such as gold, silver, copper, antimony and bismuth, and measures of controlling arsenic pollution are discussed.
2
再生铅冶炼是对废弃物的循环利用，防治铅污染的重要手段。但冶炼中处置不当，会引起土壤污染。
Remelted lead is an important way to reuse the waste and to prevent lead pollution but it may produce soil lead pollution without appropriate treatment.
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