The optimum extraction time and ratio of sample weight to extractant volume were chosen according to the extraction results of indicator parameters and heavy metals in leachates.
分别根据表征参量和重金属在萃取溶液中的含量变化确定最优萃取时间和萃取样液比。
2
The application of flotation for the removal of humic compounds was investigated by using it as a possible post-treatment process of simulated landfill leachates after biological treatment.
The concentration of the pollution in garbage leachates is high, the virulence is great and the component is complex , which harms the biological environment and people' s health very seriously.