Volume No. 9 Issue No.: 3 Page No.: 514-522 January-March 2015

 

PERFORMANCE OF TEA FACTORY WASTE FOR SORPTION OF CHROMIUM BY BATCH STUDY FROM AQUEOUS ENVIRONMENT

 

Datta Jibesh* and Mishra Umesh

Department of Civil Engineering, Tripura Institute of Technology, Agartala, Tripura (INDIA)

 

Received on : September 10, 2014

 

ABSTRACT

 

Adsorption is potentially an effective and economical method for the treatment of waste water for retaining heavy metals from dilute solution. Several research studies have been carried out to determine the capacity of various adsorbents present in environment. The present study is carried out to assess the uptake of chromium ion from aqueous solution using tea factory waste through the batch adsorption study. The effect of various process parameters such as initial concentration of chromium ion, agitation rate and adsorbent mass on the adsorption quality is also evaluated in the present study. It was found that the equilibrium time varies with the different metal ion concentration. The adsorption data was well suited in the Langmuir isotherm model and Freundlich isotherm model. The maximum adsorption capacity of the tea factory waste was found as 25.56 mg/g at 0.25 g/l adsorbent dose, pH 5 and initial feed concentration of 20 mg/l. The pseudo first order, pseudo second order, Elovich and the reaction rate models were used to describe the kinetic data. The results prove that the low cost tea factory waste can be used as a potential adsorbent in developing countries like India where there is a large production of tea takes place

 

Keywords : Adsorption, Tea factory waste, Batch study, Chromium, Isotherm, Kinetics

 

 

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