Removal of phenol from aqueous solution using rice straw as adsorbent

Phenol is an environmental pollutant; the present study was conducted to examine the adsorption of phenol by rice straw. For this purpose raw (untreated), physically treated (boiled and dried) and thermally treated (heated at 230 °C for 3 h to produce ash) rice straw were selected to determine pheno...

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Bibliographic Details
Published inApplied water science Vol. 7; no. 3; pp. 1459 - 1465
Main Authors Sarker, Nandita, Fakhruddin, A. N. M.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2017
Springer Nature B.V
Subjects
Adsorbents
Aquatic Pollution
Aqueous solutions
Ashes
Biomass energy
Colorimetry
Comparative Law
Earth and Environmental Science
Earth Sciences
Hydrogeology
Industrial and Production Engineering
International & Foreign Law
Isotherms
Nanotechnology
Original Article
Oryza
Phenols
Pollutants
Private International Law
Removal
Rice
Rice straw
Straw
Waste Water Technology
Water Industry/Water Technologies
Water Management
Water Pollution Control
Isotherm
Phenol
Adsorption
Equilibrium
Rice straw
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Summary:Phenol is an environmental pollutant; the present study was conducted to examine the adsorption of phenol by rice straw. For this purpose raw (untreated), physically treated (boiled and dried) and thermally treated (heated at 230 °C for 3 h to produce ash) rice straw were selected to determine phenol removal efficiency at different contact times and adsorbent dosages for 1 and <1 mm rice straw particles. Residual phenol concentrations were determined by colorimetric method. Highest 84 % of phenol removal was observed for thermally treated <1 mm rice straw particle. Equilibrium time was more than four hour. Percentage of removal of phenol increased as the adsorbent dose increase. The removal efficiency increase in the order of: raw rice straw < physically treated < thermally treated (ash) rice straw. Langmuir and Freundlich isotherm was developed for 1 and <1 mm particle size of thermally (ash) treated rice straw. Freundlich isotherm best fit the equilibrium data for 1 mm thermally treated rice straw. The results showed that thermally treated rice straw (ash) can be developed as a potential adsorbent for phenol removal from aqueous solution.
ISSN:2190-5487
2190-5495
DOI:10.1007/s13201-015-0324-9