Study on the methodology and mechanisms of siderite tailings for treatment of arsenic sulfide slag with arsenic waste acid
A study on the siderite tailings for treatment of arsenic sulfide slag with arsenic waste acid by u-tilizing siderite tailings as an iron source and arsenic-containing acidic waste acid as a neutralizing agent.The results showed that the removal efficiency of As reached up 99.59%,and the TCLP leached concen-tration of arsenic was only 0.10 mg/L with arsenic waste acid dosage V(ASS)/V(WSA)of 1∶2,Fe/As molar ratio of 3,and hydrothermal temperature of 140℃for 14 h.