[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Articles archive::
For Authors::
For Reviewers::
Registration::
Contact us::
Site Facilities::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
Open Access
AWT IMAGE
..
MeSH Browser

AWT IMAGE

..
Scopus quartile
..
Google Scholar

Citation Indices from GS

AllSince 2019
Citations27132339
h-index2322
i10-index9277

..
ORCID
..
:: Volume 3, Issue 1 ( Winter 2016) ::
Environ. Health Eng. Manag. 2016, 3(1): 1-7 Back to browse issues page
Adsorption of the reactive azo dyes onto NH4Cl-induced activated carbon
Sakine Shekoohiyan , Gholamreza Moussavi , Samira Mojab , Ahmad Alahabadi
Department of Environmental Health Engineering, Tarbiat Modares University, Tehran, Iran , moussavi@modares.ac.ir
Abstract:   (8942 Views)

Background: The efficacy of NH4Cl-induced activated carbon (NAC) was examined in order to adsorb RR198, an azo reactive model dye, from an aqueous solution.
Methods: The effects of pH (3 to 10), adsorbent dose (0.1 to 1.2 g/L), dye concentration and contact time on the adsorption efficiency were investigated.
Results: The results showed that the removal of dye was highest at a solution pH of 7 and a powder dose of 1.1 g/L. The 85.9%, 72.6% and 65.4% removal of RR198 was obtained for a concentration of 25, 50 and 100 mg/L, respectively, at a relatively short contact time of 30 minutes, and at optimum pH and NAC concentrations of 1 g/L. The experimental data for kinetic analysis illustrated a best fit to the pseudo-second-order model. The study data on equilibrium were modeled using Langmuir, Freundlich and Dubinin–Radushkevich models; the Langmuir equation provided the best fit for the data.
Conclusion: Therefore, the NAC appears to be an efficient and appropriate adsorbent for the removal of reactive azo dyes from waste streams.
 

Keywords: Azo dye, Adsorption, Modified activated carbon, Equilibrium, Isotherm, Kinetic
eprint link: http://eprints.kmu.ac.ir/id/eprint/25227
Full-Text [PDF 607 kb]   (3417 Downloads)    
Type of Study: Original Article | Subject: General
Received: 2016/03/14 | Accepted: 2016/03/14 | Published: 2016/03/14
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Shekoohiyan S, Moussavi G, Mojab S, Alahabadi A. Adsorption of the reactive azo dyes onto NH4Cl-induced activated carbon. Environ. Health Eng. Manag. 2016; 3 (1) :1-7
URL: http://ehemj.com/article-1-134-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 3, Issue 1 ( Winter 2016) Back to browse issues page
Environmental Health Engineering And Management Journal Environmental Health Engineering And Management Journal
Persian site map - English site map - Created in 0.05 seconds with 47 queries by YEKTAWEB 4642