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 m3,the peak value was 1 160 m3.During the construction of barium slag stock dump in-situ solidification and stabilization,the mass concentrations of S2-,NH3-N,CODCr and pH of the leachate gradually increased.During the construction process,the ratio of NH3-N mass concentration to S2-mass concentration increased by twice compared to before construction.The ratio of dichromate mass concentration to S2-mass concentration remained at around 2,and almost all of the dichromate in the leachate was composed of S2-.The research results can provide reference for the treatment of leachate in domestic barium slag stock dump.
关键词
钡渣堆场/原位固化稳定化/渣场渗滤液/影响分析
Key words
barium slag stock dump/in-situ solidification and stabilization/stock dump leachate/impact analysis
维普
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