江西某銅礦排土場與尾礦庫重金屬釋放規(guī)律及其對地下水的污染風(fēng)險(xiǎn)
發(fā)布時(shí)間:2018-03-21 06:24
本文選題:排土場 切入點(diǎn):尾礦庫 出處:《有色金屬工程》2016年01期 論文類型:期刊論文
【摘要】:對江西某銅礦排土場、尾礦庫、疏干井排水口淤泥進(jìn)行了取樣測試。浸出毒性判別結(jié)果表明排土場土壤、尾礦砂及淤泥為不具有浸出毒性的危險(xiǎn)廢物,但浸出液重金屬濃度超過《地下水質(zhì)量標(biāo)準(zhǔn)》中Ⅲ類水標(biāo)準(zhǔn),尤其是銅、鉛、鎘元素超標(biāo)嚴(yán)重,對地下水環(huán)境構(gòu)成威脅。重金屬釋放實(shí)驗(yàn)顯示,隨時(shí)間增加重金屬釋放量也增加,酸性降水條件下重金屬釋放量明顯高于中性條件。因此,為避免土壤及地下水受到污染,應(yīng)采取控制與修復(fù)措施。
[Abstract]:The silt of a copper mine dump, tailings reservoir and draining well in Jiangxi Province was sampled and tested. The results of leaching toxicity discrimination showed that the soil, tailings and silt of the dump were hazardous wastes without leaching toxicity. However, the concentration of heavy metals in leachate exceeded the class 鈪,
本文編號(hào):1642637
本文鏈接:http://www.sikaile.net/kejilunwen/kuangye/1642637.html
最近更新
教材專著