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| Gray relation analysis of atrazine adsorption onto surficial sediments and natural surficial coating samples |
| 1.Research Academy of Energy and Environmental Studies, North China Electric Power University, Beijing 102206, China; 2.Key Laboratory of Regional Energy Systems Optimization of Ministry of Education, North China Electric Power University, Beijing 102206, China; 3.College of Environment and Resources, Jilin University, Changchun, Jilin 130012, China |
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Abstract The main sites of atrazine (AT) adsorption onto the surficial sediments and natural surficial coating samples in Cd2+/AT, Cu2+/AT composite contamination systems were filtrated according to gray correlation of the active fractions of Fe oxides, Mn oxides, organic materials and their interactions. A multiple regression model between AT adsorption amount and main adsorption sites was established. The results show that Cd2+ expresses synergetic effect on AT adsorption with the most significant efficiency at Cd2+ level of 0.2 mg·L-1. The antagonistic effect caused by Cu2+ on AT adsorption is generally enhanced by the increasing of Cu2+ levels. Cd2+ or Cu2+ can dramatically influence active fractions and their interactions on AT adsorption.The interactions among active fractions play an important role in controlling the environmental behaviors of AT in aquatic environments.
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2012, Vol. 33 
