Removal of Cd2+, Cr3+, Cu2+, Hg2+, Pb2+ and Zn2+ cations and AsO4(3-) anions from aqueous solutions by mixed clay from Tundulu in Malawi and characterisation of the clay Removal of Cd2+, Cr3+, Cu2+, Hg2+, Pb2+ and Zn2+ cations and AsO4(3-) anions from aqueous solutions by mixed clay from Tundulu in Malawi and characterisation of the clay Posted in .