Application of nano zinc oxide (nZnO) for the removal of triphenyltin chloride (TPT) from dockyard wastewater

被引：9
作者：
Ayanda, Olushola S. [1 ,2 ]
Fatoki, Olalekan S. [2 ]
Adekola, Folahan A. [3 ]
Petrik, Leslie F. [1 ]
Ximba, Bhekumusa J. [2 ]
机构：
[1] Univ Western Cape, Dept Chem, Environm & Nano Sci Res Grp, ZA-7535 Bellville, South Africa
[2] Cape Peninsula Univ Technol, Fac Sci Appl, Dept Chem, Bellville, South Africa
[3] Univ Ilorin, Dept Chem, Ilorin, Nigeria
来源：
WATER SA | 2014年 / 40卷 / 04期
关键词：
persistent organic pollutants; triphenyltin chloride; nano zinc oxide; adsorption; dockyard wastewater; PERSISTENT ORGANIC POLLUTANTS; ACTIVATED CARBON; AQUEOUS-SOLUTION; ADSORPTION; DYE; KINETICS; BATCH; BLUE; EQUILIBRIUM; BIOSORPTION;
D O I：
10.4314/wsa.v40i4.11
中图分类号：
TV21 [水资源调查与水利规划];
学科分类号：
081501 ;
摘要：
The use of triphenyltin chloride (TPT), a persistent organic pollutant, as a biocide has led to serious contamination of the marine environment. The potential of nano zinc oxide (nZnO) for the removal of TPT from contaminated dockyard wastewater was investigated. The adsorption of TPT onto nZnO has been found to depend on the adsorbent dose, contact time, pH, stirring speed, and temperature. Equilibrium data fitted well with the Freundlich model and the experiments showed that 97.0% TPT removal was achieved by treating 0.643 mg.l(-1) TPT contaminated dockyard wastewater with 0.5 g nZnO at optimal conditions. The kinetic data for the adsorption process obeyed a pseudo second-order kinetic model, suggesting that the adsorption process is chemisorption. The nZnO investigated in this study showed good potential for the removal of TPT from contaminated dockyard wastewater systems.
引用
收藏
页码：659 / 664
页数：6
相关论文
共 36 条
[1]   Determination of the equilibrium, kinetic and thermodynamic parameters of the batch biosorption of nickel(II) ions onto Chlorella vulgaris [J].
Aksu, Z .
PROCESS BIOCHEMISTRY, 2002, 38 (01) :89-99
[2]   Removal of heavy metals from waste waters by natural and Na-exchanged bentonites [J].
Alvarez-Ayuso, E ;
García-Sánchez, A .
CLAYS AND CLAY MINERALS, 2003, 51 (05) :475-480
[3]   Utilization of nSiO2, fly ash, and nSiO2/fly ash composite for the remediation of triphenyltin (TPT) from contaminated seawater [J].
Ayanda, Olushola S. ;
Fatoki, Olalekan S. ;
Adekola, Folahan A. ;
Ximba, Bhekumusa J. .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2013, 20 (11) :8172-8181
[4]   Removal of tributyltin from shipyard process wastewater by fly ash, activated carbon and fly ash/activated carbon composite: adsorption models and kinetics [J].
Ayanda, Olushola S. ;
Fatoki, Olalekan S. ;
Adekola, Folahan A. ;
Ximba, Bhekumusa J. .
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2013, 88 (12) :2201-2208
[5]   Kinetics and equilibrium models for the sorption of tributyltin to nZnO, activated carbon and nZnO/activated carbon composite in artificial seawater [J].
Ayanda, Olushola S. ;
Fatoki, Olalekan S. ;
Adekola, Folahan A. ;
Ximba, Bhekumusa J. .
MARINE POLLUTION BULLETIN, 2013, 72 (01) :222-230
[6]   Dye adsorption by calcium chloride treated beech sawdust in batch and fixed-bed systems [J].
Batzias, FA ;
Sidiras, DK .
JOURNAL OF HAZARDOUS MATERIALS, 2004, 114 (1-3) :167-174
[7]  
Colborn T, 1996, REV ENVIRON CONTAM T, V146, P91
[8]   Study of imidaclopride removal from aqueous solution by adsorption onto granular activated carbon using an on-line spectrophotometric analysis system [J].
Daneshvar, N. ;
Aber, S. ;
Khani, A. ;
Khataee, A. R. .
JOURNAL OF HAZARDOUS MATERIALS, 2007, 144 (1-2) :47-51
[9]   Drin pesticides removal from aqueous solutions using acid-treated date stones [J].
El Bakouri, H. ;
Usero, J. ;
Morillo, J. ;
Rojas, R. ;
Ouassini, A. .
BIORESOURCE TECHNOLOGY, 2009, 100 (10) :2676-2684
[10]  
El-Naggar N. A., 2013, World Applied Sciences Journal, V27, P863
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