PUTRI ANJANI R. 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+. UJC [Internet]. 2014 Oct. 14 [cited 2025 Dec. 14];3(3). Available from: https://ejournal.unesa.ac.id/index.php/unesa-journal-of-chemistry/article/view/9806