When strong acid-based washing solutions are used for As removal from soils, acids containing oxyanions (e.g., H3PO4or H2SO4) are more effective than acids without oxyanions (e.g., HCl)
When strong acid-basedwashing solutions are used for As removal from soils, acids containing oxyanions (e.g., H3PO4or H2SO4) are more effective thanacids without oxyanions (e.g., HCl)