Adsorption and Kinetics Study of Abamectin and Imidacloprid in Greenhouse Soil in Palestine

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Journal Title, Volume, Page: 
j. Mater. Environ.Sci.5(2) (2014)571-580 ISSN: 2028-2508 CODEN: JMESCN
Year of Publication: 
2014
Authors: 
Shehdeh Jodeh
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Osamah Khalaf
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Ahmad A. Abu-Obaid
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Belkheir Hammouti
LCAE - URAC18, Faculty of Sciences, University Mohammed Premier , Oujda - 60000, Morocco
Taibi Ben Hadda
Laboratoire LCM, Faculty of Sciences, University Mohammed Premier , Oujda - 60000, Morocco
Wade Jodeh
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Marwan Haddad
Departm Water and Environment Institute , AN - Najah National University, P. O. Box 7, Nablus, Palestine
Ismail Warad
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Preferred Abstract (Original): 
Imidaclopid and abamectin are the most pesticides used in Palestine for agricultural purpose. Those pesticides released some amount to the soil and this will affect both soil and groundwater. Results indicate that the highest percentage of imidacloprid and abamectin removal was 13.4 % and 7.5 % respectively when adsorbent dosage was 3.0 g. At low pH of 1.5 the percentage of imidacloprid removal increases reached to 12.3 %, but the decrease of imidacloprid removal at high pH of 12 is highly extreme reached to 7.3 % . At high pH "12" the percentage of abamectin removal increases reached to 14.4 %, but the lowest percentage of abamectin removal at pH 7 reached to 9.1 %. The effect of temperature on adsorption by soil has also been investigated in the range of 15–47°C. The investigation of adsorption behavior of the two pesticides on soil, was studied using both Langmuir and Freundlich isotherms were used to explain equilibrium adsorption, from these isotherms it was evaluated that Langmuir isotherm was obeyed well.
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