Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19151
Title: Treatment of contaminated water laden with 4-chlorophenol using coconut shell waste-based activated carbon modified with chemical agents
Authors: Kurniawan, TA
Lo, WH 
Sillanpaa, MET
Keywords: Agricultural waste
Low-cost adsorbents
Physicochemical treatments
Surface modification
Water pollution control
Issue Date: 2011
Publisher: Taylor & Francis Inc
Source: Separation science and technology, 2011, v. 46, no. 3, p. 460-472 How to cite?
Journal: Separation Science and Technology 
Abstract: This laboratory study investigates the performances of coconut shell waste-based activated carbon (CSBAC) in removing 4-chlorophenol (4-CP) from contaminated water. To improve its removal for target compound, the surface of CSBAC was modified with TiO 2, NaOH, and/or HNO 3. Under optimized conditions at the same initial concentration of 25 mg/L, the NaOH-treated CSBAC could remove 91% of 4-CP, compared to the HNO 3-oxidized CSBAC (60%) or the TiO 2-coated CSBAC (72%). Although the NaOH-treated CSBAC could remove 91% of 4-CP, the adsorption treatment using this adsorbent alone was unable to meet the effluent limit of lower than 1 mg/L. Therefore, subsequent biological processes are required to complement the removal of 4-CP from wastewater.
URI: http://hdl.handle.net/10397/19151
DOI: 10.1080/01496395.2010.512030
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