摘要
以贵州一钡渣堆场为对象,研究了钡渣堆场原位固化稳定化施工对渣场渗滤液水量和水质的影响变化。研究结果表明,渗滤液的产生量与当地降水量呈正相关,原位固化稳定化施工显著提高了渗滤液产生量,日均产生量为573 m^(3),峰值为1 160 m^(3),渗滤液中S^(2-)质量浓度、COD_(Cr)(重铬酸盐指数)、NH_(3)-N质量浓度及p H值均有不同程度的升高。其中,施工过程中NH_(3)-N质量浓度与S^(2-)质量浓度的比值较施工前提高了1倍,重铬酸盐质量浓度与S^(2-)质量浓度的比值维持在2左右,渗滤液中的重铬酸盐几乎全部由S^(2-)组成。研究结果可为国内钡渣堆场渗滤液处理工作提供参考。
A barium slag stock dump in Guizhou was selected to study influencing of the construction of barium slag stock dump in-situ solidification and stabilization on leachate.The experimental results showed that the leachate production was related to the rainfall and the construction of barium slag stock dump in-situ solidification and stabilization,the in-situ solidification and stabilization construction significantly increased the amount of leachate produced,the average daily leachate generation was 573 m^(3),the peak value was 1160 m^(3).During the construction of barium slag stock dump in-situ solidification and stabilization,the mass concentrations of S^(2-),NH_(3)-N,CODCr and pH of the leachate gradually increased.During the construction process,the ratio of NH_(3)-N mass concentration to S^(2-)mass concentration increased by twice compared to before construction.The ratio of dichromate mass concentration to S^(2-)mass concentration remained at around 2,and almost all of the dichromate in the leachate was composed of S^(2-).The research results can provide reference for the treatment of leachate in domestic barium slag stock dump.
作者
刘雷
LIU Lei(Sinochem Environment Remediation(Shandong)Co.,Ltd.,Beijing 100071,China;Sinochem Environment Holdings Co.,Ltd.,Beijing 100071,China)
出处
《能源与节能》
2024年第12期108-111,共4页
Energy and Energy Conservation
关键词
钡渣堆场
原位固化稳定化
渣场渗滤液
影响分析
barium slag stock dump
in-situ solidification and stabilization
stock dump leachate
impact analysis
