Arsenic removal from drinking water with conventional and modified adsorbents: the factorial design of experiments

Title
Arsenic removal from drinking water with conventional and modified adsorbents: the factorial design of experiments
Author(s)
정진영M.Hammad Khan[M.Hammad Khan]Muhannad Tariq[Muhannad Tariq]Farzana Bashir[Farzana Bashir]Tahira Shafiq[Tahira Shafiq]Rauf A. Khan[Rauf A. Khan]
Keywords
RESPONSE-SURFACE METHODOLOGY; FERRIC IONS; IRON; NANOFILTRATION; OPTIMIZATION; GROUNDWATER; COAGULATION; ADSORPTION; OXIDATION
Issue Date
201311
Publisher
TAYLOR & FRANCIS INC
Citation
DESALINATION AND WATER TREATMENT, v.51, no.37-39, pp.7304 - 7310
Abstract
Many areas of Pakistan are facing the problem of arsenic concentrations in underground water exceeding WHO limits. The kinetics, isotherm, and column efficiency of arsenic removal were tested for the following four adsorbents: alumina, iron-doped alumina (FA), and iron- and aluminum-doped brick particles (BF and BA). Alumina removed 85-99% arsenic in batch and continuous processes, respectively, with 1.22mg/g adsorption capacity. FA had a higher adsorption capacity of up to 3.03mg/g with a longer time to attain equilibrium. BF and BA had adsorption capacities of 0.16 and 0.02mg/g, respectively, and took longer time to attain equilibrium. Statistical factorial design 2(4) showed that the variables were significant and optimized the process.
URI
http://hdl.handle.net/YU.REPOSITORY/28491http://dx.doi.org/10.1080/19443994.2013.797458
ISSN
1944-3994
Appears in Collections:
공과대학 > 환경공학과 > Articles
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