Removal of perchlorate from drinking water using granular activated carbon modified by acidic functional group: Adsorption kinetics and equilibrium studies

被引：38

作者：

Krishnan, Rekha G. ^{[1
]}

Raclhika, R. ^{[1
]}

Jayalatha, T. ^{[1
]}

Jacob, Salu ^{[1
]}

Rajeeu, R. ^{[1
]}

George, Benny K. ^{[1
]}

Anjali, B. R. ^{[1
,2
]}

机构：

[1] Vikram Sarabhai Space Ctr, Analyt & Spect Div, Analyt Spect & Ceram Grp, Propellants Polymers Chem & Mat Ent, Thiruvananthapuram 695022, Kerala, India

[2] Univ Calicut, Dept Chem, Malappuram, India

来源：

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION | 2017年 / 109卷

关键词：

Perchlorate; Activated carbon; Adsorption; Kinetics; Langmuir isotherm; Sticking probability; LAYERED DOUBLE HYDROXIDES; AQUEOUS-SOLUTION; METHYLENE-BLUE; MCM-41; SILICA; RICE HUSK; CHLORIDE; GAC; CONTAMINANTS; GROUNDWATER; COMPOSITES;

D O I：

10.1016/j.psep.2017.03.014

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Granular activated carbon was treated with different types of acids in order to improve its capability for the removal of perchlorate from drinking water. The characteristics of acid treated granular activated carbons were examined by SEM, XRD, Raman spectrum and FTIR spectroscopic analysis. The effect of various adsorption parameters such as contact time, initial perchlorate concentration, pH of the solution, temperature and presence of co-existing anions on the efficiency were studied. Maximum adsorption capacities were observed as 20.1, 37.5 and 44.0 mg g(-1) for GAC, GAC-AA and GAC-PH respectively at 303 K. Equilibrium adsorption isotherms and kinetics for the process were investigated and found that the process follows Langmuir adsorption isotherm. The adsorption of perchlorate could be well described by pseudo-second-order kinetic model. Thermodynamic parameters, Delta G degrees, Delta H degrees and Delta S degrees were also evaluated. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：158 / 171

页数：14

共 45 条

[1]

AIShamaileh E., 2007, J PHYS SCI, V1

[2] Removal of direct blue-106 dye from aqueous solution using new activated carbons developed from pomegranate peel: Adsorption equilibrium and kinetics [J].

Amin, Nevine Kamal .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 165 (1-3) :52-62

[3]

Bagherifam S., 2014, APPL CLAY SCI

[4] Perchlorate removal by quaternary amine modified reed [J].

Baidas, Salem ;

Gao, Baoyu ;

Meng, Xiaoguang .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 189 (1-2) :54-61

[5] Dissimilatory perchlorate reduction: A review [J].

Bardiya, Nirmala ;

Bae, Jae-Ho .

MICROBIOLOGICAL RESEARCH, 2011, 166 (04) :237-254

[6] Ammonia-tailoring of GAC to enhance perchlorate removal.: I:: Characterization of NH3 thermally tailored GACs [J].

Chen, WF ;

Cannon, FS ;

Rangel-Mendez, JR .

CARBON, 2005, 43 (03) :573-580

[7] Ammonia-tailoring of GAC to enhance perchlorate removal. II: Perchlorate adsorption [J].

Chen, WF ;

Cannon, FS ;

Rangel-Mendez, JR .

CARBON, 2005, 43 (03) :581-590

[8] Montmorillonite modified with hexadecylpyridinium chloride as highly efficient anion exchanger for perchlorate ion [J].

Chitrakar, Ramesh ;

Makita, Yoji ;

Hirotsu, Takahiro ;

Sonoda, Akinari .

CHEMICAL ENGINEERING JOURNAL, 2012, 191 :141-146

[9]

Darracq G., 2014, J WATER PROCESS ENG

[10] Adsorption kinetics and mechanism of cationic methyl violet and methylene blue dyes onto sepiolite [J].

Dogan, Mehmet ;

Ozdemir, Yasemin ;

Alkan, Mahir .

DYES AND PIGMENTS, 2007, 75 (03) :701-713

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