Tannin Based Adsorbent (TBA) Dari Daun Jambu Biji (Psidium Guajava L.) Untuk Menyerap Ion Logam CR(VI) Dalam Air Limbah
Abstract
Hasil penelitian menunjukkan bahwa pelarut yang menghasilkan tanin dengan kadar yang paling tinggi untuk semua rasio massa bahan baku:pelarut (m/v) adalah etanol 80%. Pada tahap adsorpsi, konsentrasi awal ion Cr(VI) dengan persen removal terbesar adalah 84,53 ppm dengan persen removal 97,37%. Isoterm adsorpsi mengikuti model persamaan isoterm Freundlich yang berbentuk qe = 34,18 x (Ce)1/4,6
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DOI: https://doi.org/10.33508/wt.v18i1.2089