Application of statistical design of experiment with desirability function for the removal of organophosphorus pesticide from aqueous solution by low-cost material (Journal article)

Islam, M. A./ Sakkas, V./ Albanis, T. A.


This paper deals with the multiple response optimization for the removal of organophosphorus pesticide quinalphos [QP: O,O-diethyl O-2-quinoxatinyl phosphorothioate] from the aqueous solution onto low-cost material and tried to overcome the drawbacks of univariate optimization. Used tea leaves were used as low-cost adsorbent and batch equilibration method was followed for this study. A Box-Behnken design was used to develop response model and desirability function was then used for simultaneous optimization of all affecting parameters in order to achieve the highest removal% of quinalphos. The optimum conditions of factors predicted for quinalphos removal% were found to be: pH 8.83, concentration 7 mg L(-1) and dose 0.40 g. Under these conditions, maximum removal% of quinalphos was obtained 96.31%. Considering the above optimum conditions. the adsorption isotherms were developed and provided adsorption capacity of 196.07 mu g g(-1) by using Langmuir equation, indicating that used tea leaves may be applied as a low-cost material for pesticides removal from aqueous matrices. (C) 2009 Elsevier B.V. All rights reserved.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας
Keywords: box-behnken,desirability function,quinalphos,used tea leaves,box-behnken design,methyl parathion pesticide,natural-waters,quinalphos,optimization,adsorption,adsorbent,degradation,metabolite,variables
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/9905
ISSN: 0304-3894
Link: <Go to ISI>://000269162000034
http://ac.els-cdn.com/S0304389409006906/1-s2.0-S0304389409006906-main.pdf?_tid=8471e7c95df39626bd69410b6c9b25ef&acdnat=1333022943_45bae1a7b474c1734136ad192f36c5b6
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

Files in This Item:
File Description SizeFormat 
Islam-2009-Application of stati.pdf733.77 kBAdobe PDFView/Open    Request a copy



 Please use this identifier to cite or link to this item:
http://olympias.lib.uoi.gr/jspui/handle/123456789/9905
  This item is a favorite for 0 people.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.