Adsorption of methylene blue and ferrous metal solution by using coconut shell charcoal

Abstract

This research was developed based on the problem of waste from the coconut export industry and the current trend of water pollution. This research aims to study methylene blue adsorption by using coconut shell charcoal prepared from clay kilns. The study of adsorption isotherms in batch experiments showed that the coconut shell charcoal was fitted well with Langmuir adsorption isotherms with a capacity of 36.49 mg g–1 for particle size in the range of 53 – 74 mm. Through the determination of the surface area of methylene blue adsorption, coconut shell charcoal in the range of 53 – 74 micrometers had the highest surface area of 65.95 m2 g–1. Coconut shell charcoal was used to study the adsorption of ferrous metal solution at the initial concentration of 15 mg l–1. It was found that 0.25 g of coconut shell charcoal had the highest absorption capacity of 17.29% of the ferrous metal solution.