Use of papaya seeds as a biosorbent of methylene blue from aqueous solution

被引：36

作者：

Paz, Diego S. ^{[1
]}

Baiotto, Alexandre ^{[1
]}

Schwaab, Marcio ^{[1
]}

Mazutti, Marcio A. ^{[1
]}

Bassaco, Mariana M. ^{[1
]}

Bertuol, Daniel A. ^{[1
]}

Foletto, Edson L. ^{[1
]}

Meili, Lucas ^{[2
]}

机构：

[1] Univ Fed Santa Maria, Dept Chem Engn, BR-97105900 Santa Maria, RS, Brazil

[2] Univ Fed Alagoas, Ctr Technol, Lab Separat Syst & Proc Optimizat LASSOP, BR-57072970 Maceio Al, Brazil

来源：

WATER SCIENCE AND TECHNOLOGY | 2013年 / 68卷 / 02期

关键词：

adsorption; equilibrium; kinetic; methylene blue; papaya seed; REMOVAL; WASTE;

D O I：

10.2166/wst.2013.185

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study papaya seeds were used to remove methylene blue dye from aqueous solution. Papaya seeds were characterized as possessing a macro/mesoporous texture and large pore size. Studies were carried out in batches to evaluate the effect of contact time and pH (2-12) on the removal of dye. It was observed that the adsorption of dye was better in the basic region (pH 12). The equilibrium data were analyzed using Langmuir, Freundlich, Dubinin-Raduschkevich, Tempkin, Jovanovich, Redlich-Peterson, Sips, Toth and Radke-Prausnitz isotherms. The equilibrium data were best described by the Langmuir isotherm with a maximum adsorption capacity of 637.29 mg g(-1). Adsorption kinetic data were fitted using the pseudo-first-order and pseudo-second-order model. The adsorption kinetic is very fast and was best described by the pseudo-second-order model.

引用

页码：441 / 447

页数：7

共 14 条

[1] Sorption behavior of cationic and anionic dyes from aqueous solution on different types of activated carbons
Al-Degs, Y
Khraisheh, MAM
Allen, SJ
Ahmad, MNA
[J]. SEPARATION SCIENCE AND TECHNOLOGY, 2001, 36 (01) : 91 - 102
[2] [Anonymous], 1977, BASIC PRINCIPLES ORG
[3] Assessment of Sericin Biosorbent for Selective Dye Removal
Chen Xinqing
Lam, Koon Fung
Mak, Shuk Fong
Ching, Wai Kwong
Ng Tsz Nok
Yeung King Lun
[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2012, 20 (03) : 426 - 432
[4] Contamination of Ground Water as a Consequence of Land Disposal of Dye Waste Mixed Sewage Effluents: A Case Study of Panipat District of Haryana, India
Dubey, S. K.
Yadav, Rashmi
Chaturvedi, R. K.
Yadav, R. K.
Sharma, V. K.
Minhas, P. S.
[J]. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, 2010, 85 (03) : 295 - 300
[5] Insights into the modeling of adsorption isotherm systems
Foo, K. Y.
Hameed, B. H.
[J]. CHEMICAL ENGINEERING JOURNAL, 2010, 156 (01) : 2 - 10
[6] Gilles C. H., 1960, J CHEM SOC, P3973
[7] Adsorption of methylene blue onto bamboo-based activated carbon: Kinetics and equilibrium studies
Hameed, B. H.
Din, A. T. M.
Ahmad, A. L.
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2007, 141 (03) : 819 - 825
[8] Evaluation of papaya seeds as a novel non-conventional low-cost adsorbent for removal of methylene blue
Hameed, B. H.
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2009, 162 (2-3) : 939 - 944
[9] Removal of Direct N Blue-106 from artificial textile dye effluent using activated carbon from orange peel: Adsorption isotherm and kinetic studies
Khaled, Azza
El Nemr, Ahmed
EI-Sikaily, Amany
Abdelwahab, Ola
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2009, 165 (1-3) : 100 - 110
[10] The removal of cationic dyes from aqueous solutions by adsorption onto pistachio hull waste
Moussavi, Gholamreza
Khosravi, Rasoul
[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN, 2011, 89 (10A) : 2182 - 2189

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