Open AccessPreparation of thermally and chemically activated charcoal from coconut shell and adsorption studies for iron removal from drinking water
Author(s) -
K K Jasna,
Krishnaraj Padmavathy,
P.V. Haseena
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1114/1/012091
Subject(s) - adsorption , freundlich equation , activated charcoal , charcoal , langmuir , activated carbon , chemistry , contamination , pulp and paper industry , environmental chemistry , water treatment , nuclear chemistry , chromatography , waste management , environmental engineering , environmental science , organic chemistry , ecology , engineering , biology
Iron is one of the contaminants that reduces potability of water. As per the Safe Drinking Water Act Secondary Standards, permissible concentration of iron in drinking water is 0.3 ppm. Iron content in the water available in industrial area is too high. Natural cleaning methods can be adopted to reduce iron concentration. Activated charcoal prepared from coconut shell can be effectively used as an adsorbent for the removal of iron from drinking water. This project aims on the preparation of thermally and chemically activated charcoal from coconut shell and its characterization. This work also focused on the adsorption studies using the prepared charcoal by varying parameters such as adsorbent dosage, initial concentration and shaking time. Langmuir and Freundlich isotherms, as well as pseudo first order and pseudo second order has been studied. Adsorption data is well fitted with Freundlich isotherm and pseudo second order kinetics.