Alkali modified jackfruit wood sawdust as bio adsorbent for removal of Pb(II) ions from wastewaters

1st International Symposium of Indonesian Chemical Engineering 2018

Mutiara, T.^1 ; Setyaningsih, L.^1 ; Chafidz, A.^1 ; Panandita, B.S.^1 ; Raharjo, R.^1

Department of Chemical Engineering, Universitas Islam Indonesia, Jl. Kaliurang Km.14.5, Yogyakarta

55584, Indonesia^1

关键词: Adsorption behaviour;    Adsorption capacities;    Adsorption process;    Bio-adsorbents;    Freundlich isotherm model;    Second order kinetics;    Sodium hydroxide concentration;    Wood sawdust;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/543/1/012094/pdf
DOI  :  10.1088/1757-899X/543/1/012094

来源: IOP

【 摘 要 】

This work was conducted to study the adsorption behaviour of bio adsorbent of alkali modified jackfruit wood sawdust and to investigate its possibility as adsorbent to remove heavy metals from wastewaters. The effects of sodium hydroxide concentration on the bio adsorbent adsorption capacity were investigated. The bio adsorbent prepared through chemical modification with solution of 2% sodium hydroxide showed the highest adsorption capacity with the value 3.32 mg/g at initial Pb(II) concentration 18.69 mg/L and percent removal Pb(II) ions was 88.86%. This study proved that adsorption process of Pb(II) ions onto bio adsorbent was perfectly illustrated by second order kinetic equation and adsorption isotherm of bio adsorbent was well represent by Freundlich isotherm model.