ORIGINAL RESEARCH
Adsorption Mechanism of Metalaxyl Pesticide in Pesticide/Heavy Metal Sediment Using Fractional Factorial Design/Fixed Effects Models
Jiawen Yang 1, 2  
,  
Wenwen Gu 1, 2  
,  
Zhenhua Chu 1, 2  
,  
Yu Li 1, 2  
 
 
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1
College of Environmental Science and Engineering, North China Electric Power University, Beijing, P. R. China
2
MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing, P. R. China
CORRESPONDING AUTHOR
Yu Li   

North China Electric Power University, Beijing, China, 102206, Beijing, China
Online publish date: 2019-10-07
Submission date: 2018-12-31
Final revision date: 2019-03-18
Acceptance date: 2019-04-14
 
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ABSTRACT
A resolution V 210-3 fractional factorial design method was estimated to identify the main effect and second-order effects of pesticides and heavy metals concentrations in a composite contamination system on adsorption of sediment to metalaxyl, combined with a fixed effects model. It was found that contributions of the second-order interaction effects of the pollutant factor concentrations (79%) was dominated in controlling metalaxyl adsorption to sediment in the system than that of the main effect (21%), and the significant synergistic and antagonistic effects to metalaxyl adsorption were 47.93% and 52.07%, respectively, indicating that metalaxyl adsorption was inhibited. Meanwhile, the main effect and second-order effects of the pollutant factor concentrations (36.32% and 63.68%) in the synergies effects and (6.81% and 93.19%) in the antagonistic effects were calculated, showing that more contribution was attributed from the second-order effects of pollutant factor concentrations to metalaxyl adsorption in the combined pesticide and heavy metal system.
eISSN:2083-5906
ISSN:1230-1485