PEMANFAATAN KULIT BIJI METE UNTUK ARANG AKTIF SEBAGAI ADSORBEN TERHADAP PENURUNAN PARAMETER PHENOL

Abstract

Adsorption process is one among other ways to treat water which contain organic matter, which commonly it uses activated carbon as adsorbent. The leathers of mete’s seed can be employed as material to produce activated carbon with good quality because it has three layers of leather, which are : endocarp, mesocarp and epicarp that contain grease and protein. Activators were H₃PO₄, ZnCl₂ and NaOH to increase capacity of the carbon. Variation of temperature had been applied in carbonation process. Activated carbon which was produced had to be examined for its adsorption capability of phenol using Langmuir isotherm, Freundlich isotherm and BET isotherm. Results of the test demonstrate that the highest removal efficiency of phenol, 96,6 – 98,5 %, is reached by activated carbon with ZnCl₂ as activator, temperature 600° C for one hour heating time and phenol initial concentration 300 mg/L.