TY - JOUR T1 - Production of KMnO4 Loaded Activated Carbon from Sacha Inchi Seed Shell by Low Activation Temperature Treatment for Methylene Blue Removal AU - Mopoung, Sumrit AU - Kruekit, Jenjira AU - Sitthikhankaew, Russamee JO - Journal of Engineering and Applied Sciences VL - 15 IS - 2 SP - 421 EP - 429 PY - 2020 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2020.421.429 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2020.421.429 KW - KMnO4 KW -sacha inchi shell KW -low activation temperature KW -Activated carbon KW -methylene blue KW -equilibrium AB - The production of activated carbon from sacha inchi seed shell for methylene blue removal was studied. The effects of KMnO4 impregnation ratios (0-5% wt./wt.) and activation temperature (250-400°C) were evaluated. It was found that the optimum activating temperature and impregnation ratio are 350°C and 1 wt.% KMnO4, respectively. The product made under these conditions is stable and suitable for adsorption in aqueous solution. Maximum methylene blue adsorption was achieved at pH 3 and with a relative decrease to about 95-96% adsorption efficiency between pH 4 and 9. The equilibrium adsorption data showed a good fit with the Freundlich isotherm exhibiting 99.80 mggG1 adsorption capacity. ER -