摘要
西北某黄金生产企业尾矿库面临闭库,采用化学法处理工艺复杂、成本高,植物修复技术具有绿色、经济等优点,是处理闭库尾矿库的较佳选择。以该企业含氰尾矿作为研究对象,通过添加不同比例的城市生活污水处理厂产生的活性污泥和建设尾矿库时堆存的腐殖土作为植物生长的培养基质,选择7种不同植物在模拟西北气候条件下进行生长态势试验。结果表明,草木犀、燕麦、野茅、披碱草4种植物适合在含氰尾矿中生长。该研究为含氰尾矿的植物修复提供主体和参考。
The tailings pond of a gold production enterprise in northwest China is to be closed.It takes high cost and is complicated to treat the tailings pond with chemical process.In contrast,the environmentally friendly and economic phytoremediation is better option to treat closed tailings pond.The paper takes the cyanide tailings from the gold production enterprise as the research subject,chooses 7 different plants to conduct growth test under simulated field climate conditions and with activated sludge produced by municipal sewage water treatment plant and stockpiled muck from tailings pond construction added in different ratio to be used as the growth matrix.The results show that 4 plants,namely the sweet clover,oat,goering lemongrass herb and lyme grass are fit to grow on cyanide tailings.This experiment provided the main body and reference for further phytoremediation of cyanide tailings.
作者
刘强
叶锦娟
吕春玲
Liu Qiang;Ye Jinjuan;Lü Chunling(Changchun Gold Research Institute Co.,Ltd.)
出处
《黄金》
CAS
2018年第9期69-73,共5页
Gold
关键词
含氰尾矿
植物修复
原位控制
植物筛选
培养基质
西北
cyanide tailings
phytoremediation
in-situ control
plant selection
culture matrix
northwest
