Manatap, Johan UndukMukhtar, AkmalTamboesai, Emrizal Mahidin2016-10-122016-10-122016-10-12wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/8697The increased efficiency or optimization of zeolite adsorbent can be done through chemical activation. The activator used in this study was HCl 1M solution. The adsorbent was characterized by XRD. Activated zeolite (ZAT) and unactivated zolite (ZA) were applied for removal metanil yellow from aqueous solution using batch method with the variation of adsorbent dose (gram), contact time (inute), pH and initial concentration of the dyestuff. The result showed that, optimum time of contact occurred at 60 minute and 90 minute for activated zeolite and unactivated zeolite respectively with optimum pH occurred at pH 2. The adsorpstion using activated zeolit was better than unactivated zeolite, with capacity adsorption was 1,3862 mg/g with removal percentage 71,1672% compared unactivated zeolite with capacity adsorption is 1,0410 mg/g with removal percentage 53,4457%. The types of adsorption for both adsorbents followed Langmuir adsorption.ennatural zeoliteactivationadsorptionmetanil yellowstudent Paper Post Degree