摘要
滇东北某县境内历史遗留硫磺冶炼废渣采用采挖煤炭焚烧硫铁矿工艺,获得产品硫磺后就地无序堆存,常堆积在山谷、河边,经雨水冲刷及人为扰动废渣流失。这一历程形成了临河废渣堆积边坡。废渣虽为人工堆积,但经40多年自身固结作用,具有物理力学指标尚可的特点。在区域实施废渣综合治理和生态修复过程中,临河废渣堆积边坡生态修复路径成为了难点。该文采取一种适用于历史遗留硫磺冶炼废渣陡坡生态修复的挂网喷播方式,实现风险管控的同时,生态修复效果明显。
The sulfur smelting in a county in northeastern Yunnan adopts the process of coal mining and pyrite burning to produce sulfur.The residue is often piled in valleys and by rivers and washed by rainfall to form slope.Although the waste is artificially accumulated,it has acceptable physical and mechanical performance with more than 40 years of self-consolidation.In the comprehensive waste treatment and ecological restoration of the region,restoration of the waste accumulation slope by river is a hard part.This paper adopts a method of hanging net spraying suitable for the ecological restoration of steep slopes of leftover sulfur smelting waste residue which achieve risk control and effective ecological restoration.
作者
施灿海
常普
尚大奎
李旅
孙高月
SHI Canhai;CHANG Pu;SHANG Dakui;LI Lu;SUN Gaoyue(Kunming Engineering&Research Institute of Nonferrous Metallurgy Co.,Ltd.,Kunming 650051,China;Zhenxiong Branch of Zhaotong Bureau of Ecology and Environment,Zhenxiong 657200,China)
出处
《有色金属设计》
2022年第4期8-13,共6页
Nonferrous Metals Design
关键词
历史遗留
废渣
陡坡
生态修复
Historical legacy
Waste residue
Steep slope
Ecological restoration
