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Removal of chlorpyrifos (Dursban) pesticide from aqueous solutions using barley husks
Other Title(s)
إزالة مبيد الكلوربايريفوس (الدورسبان) من المحاليل المائية باستعمال قشور الشعير
Joint Authors
Ghati, Shayma Khalaf
Sulayman, Intsar Dawud
Abd Allah, Najwa Ishaq
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 29, Issue 3 (31 Dec. 2016), pp.54-68, 15 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2016-12-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Topics
Abstract EN
The removal of chlorpyrifos pesticide from aqueous solutions was achieved by adsorption using low cost agricultural residue as adsorbent surface; barley husks.
Several variables that affect the adsorption were studied including contact time, adsorbent weight, pH, ionic strength, particle size and temperature.
The absorbance of the solution before and after adsorption was measured by using UV-Visible spectrophotometer.
The equilibrium data was suitable with Langmuir model of adsorption and the linear regression coefficient R2 = 0.9785 at 37.5°C was used to knowledge the best fitting isotherm model.
The general shape of the adsorption isotherm of chlorpyrifos on barley husks consistent with (H3-type) on the Giles classification.
Several thermodynamic functions such as (Gibb's free energy, enthalpy and entropy) of the on-going adsorption process have also been estimated.
( H°= 0.0080 ) ,( The results of the pesticide adsorption process on barley husks indicated that the adsorption process is endothermic.
The positive values of propose the increasing randomized.
The negative values indicated the spontaneous process of adsorption.
American Psychological Association (APA)
Ghati, Shayma Khalaf& Sulayman, Intsar Dawud& Abd Allah, Najwa Ishaq. 2016. Removal of chlorpyrifos (Dursban) pesticide from aqueous solutions using barley husks. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 29, no. 3, pp.54-68.
https://search.emarefa.net/detail/BIM-775042
Modern Language Association (MLA)
Sulayman, Intsar Dawud…[et al.]. Removal of chlorpyrifos (Dursban) pesticide from aqueous solutions using barley husks. Ibn al-Haitham Journal for Pure and Applied Science Vol. 29, no. 3 (2016), pp.54-68.
https://search.emarefa.net/detail/BIM-775042
American Medical Association (AMA)
Ghati, Shayma Khalaf& Sulayman, Intsar Dawud& Abd Allah, Najwa Ishaq. Removal of chlorpyrifos (Dursban) pesticide from aqueous solutions using barley husks. Ibn al-Haitham Journal for Pure and Applied Science. 2016. Vol. 29, no. 3, pp.54-68.
https://search.emarefa.net/detail/BIM-775042
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 61-67
Record ID
BIM-775042