77 / 2016-05-02 02:31:07

Removal of Malachite Green Dye from wastewater Using Palm Fiber: Isotherms and Kinetic Studies

Email: m.abrishamkar@umz.ac.ir
Treatment of colored wastewater is one of the important challenges of environmental science. Adsorption process is a key option for removal of organic matter from wastewater [1]. It is known to be highly toxic to mammalian cells and acts as a tumor-enhancing agent. Wastewaters discharged from different industries such as the textile, leather tanning, paper production, food technology, hair colorings, etc. are usually polluted by dyes [2-4]. The aim of present work was to investigate palm fiber as an adsorbent for removal of Malachite Green (MG) from aqueous solution. The effective parameters such as adsorbent dosage, dye concentration, agitation rate, size of adsorbent and initial pH were investigated. The experimental equilibrium data were tested by Langmuir and Freundlich, isotherms which was correlated with Freundlich model. The fiber palm was wash and dried then ground with different particle sizes. Different MG concentrations were adsorbed with different amounts of adsorbent during different times. The pH of initial MG concentration was investigated. The kinetics studies were done using pseudo first and second order rates equations. Obtained results were shown that fiber palm was an efficient adsorbent for MG adsorption. The results were comparable with other similar works which used different adsorbents for MG adsorption.
Keyword: Wastewater, malachite green, palm fiber, kinetic study, adsorption isotherms,
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