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Adsorption of Atrazine and Simazine from Aqueous Solutions onto Poly(ε‐Caprolactone)
Author(s) -
Ovez Bikem,
Höll Wolfgang H.
Publication year - 2008
Publication title -
clean – soil, air, water
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 66
eISSN - 1863-0669
pISSN - 1863-0650
DOI - 10.1002/clen.200700203
Subject(s) - simazine , adsorption , atrazine , freundlich equation , aqueous solution , chemistry , langmuir , caprolactone , substrate (aquarium) , langmuir adsorption model , polymer , chemical engineering , nuclear chemistry , organic chemistry , pesticide , polymerization , oceanography , engineering , agronomy , biology , geology
The biodegradable synthetic polymer poly(ε‐caprolactone) was investigated as a substrate for denitrification. This substrate may also act as an adsorbent for two pesticides, i. e., atrazine and simazine, from water. The equilibrium was studied at 25, 35 and 45°C. The results were correlated using the Langmuir and Freundlich adsorption models. The total capacities of the adsorbent were defined from experimental data for atrazine (10.98 mg g –1 ) and simazine (27.54 mg g –1 ). The effect of temperature on the model constants and the thermodynamics of adsorption were investigated. The evaluation of the development of adsorption was achieved by assuming a pseudo‐second order chemical reaction.