Removal of Mg2+, K+, SO4-2 Ions from Seawater by Precipitation MethodCaecilia Pujiastuti, Ketut Sumada, Yustina Ngatilah and Prasetyo HadiMATEC Web of Conferences, 58 (2016) 01022DOI: https://doi.org/10.1051/matecconf/20165801022