PUTRI ANJANI, R. 2014. PENENTUAN MASSA DAN WAKTU KONTAK OPTIMUM ADSORPSI KARBONGRANULAR SEBAGAI ADSORBEN LOGAM BERAT Pb(II) DENGAN PESAINGION Na+DETERMINATION OF OPTIMUM MASS AND THE TIME CONTACT OF THEGRANULAR ACTIVATED CARBON ADSORPTION USED FOR ADSORBENTTO REMOVAL HEAVY METAL Pb(II) WITH COMPETITOR ION Na+. Unesa Journal of Chemistry. 3, 3 (Oct. 2014). DOI:https://doi.org/10.26740/ujc.v3n3.p%p.