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- W2040711970 abstract "Abstract Natural adsorbents (Kula ebonite, zeolite and zeolite treated with Al 2 (SO 4 ) 3 ; Al 2 (SO 4 ) 3 +NaOH; FeCl 3 and FeCl 3 +NaOH) were prepared and employed by means of batch method for selective adsorption and removal of arsenic from aqueous system. The influences of different parameters such as, contact time, pH, temperature, and concentration of adsorbate on adsorption performance of zeolite and zeolite treated with FeCl 3 and FeCl 3 +NaOH were studied in order to optimize the adsorption conditions. Batch adsorption studies have shown that removal capacity of zeolite from aqueous solutions can be increased by FeCl 3 and FeCl 3 +NaOH treatment. The maximum adsorption capacities were 1.99 and 3.43 mg g −1 of zeolite which was treated with FeCl 3 and FeCl 3 +NaOH for arsenic, respectively. The adsorption data obtained follows a first‐order rate expression and fits the Langmuir isotherm that has been used to obtain thethermodynamic parameters. In addition, the thermodynamic parameters, standard free energy (ΔG°), standard enthalpy (ΔH°), standard entropy (ΔS°) of the adsorption process were calculated. It was found that the adsorption of arsenic on zeolite was exothermic. © 2011 American Institute of Chemical Engineers Environ Prog, 2011" @default.
- W2040711970 created "2016-06-24" @default.
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- W2040711970 date "2011-07-19" @default.
- W2040711970 modified "2023-10-10" @default.
- W2040711970 title "Arsenic removal from aqueous system using natural and modified (Kula ebonite and zeolite) adsorbents" @default.
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- W2040711970 doi "https://doi.org/10.1002/ep.10573" @default.
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