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Adsorption Mechanism of Heavy Metals in Heavy Metal/Pesticide Coexisting Sediment Systems through Factional Factorial Design Assisted by 2D-QSAR Models
College of Environmental Science and Engineering, North China Electric Power University, Beijing, China
North China Electric Power University, Beijing, China, 102206 Beijing, China
Final revision date: 2017-11-20
Online publication date: 2018-06-25
Pol. J. Environ. Stud. 2018;27(6):2451–2461
Heavy metals contamination of water
Resolution V of the 210-3 fractional factorial design method was used to identify the main effects and second-order interaction effects of pollutants (copper, cadmium, lead, zinc, nickel, dimethoate, metalaxyl, atrazine, malathion, and prometryn) on metals adsorption onto sediments, and 2D-QSAR models were established to reveal the relationships between metal ion characteristics and the effects of pollutants on metals adsorption. The effects on Cd adsorption were attributed to the main effects of pollutant factor concentrations, while the effects on Cu, Pb, Zn, and Ni adsorption were from the second-order interaction effect. No interference with Cd adsorption was observed, and the synergistic contribution of the main effects and second-order interaction effects on Ni adsorption was 67.26%. Additionally, the antagonistic contribution rates to Cu, Zn, and Pb adsorption reached 55.31%, 73.16%, and 86.23%, respectively. Significant correlations existed between the main effects and ionization potential (IP), the change in ionization potential (AIP) and ion hydrolysis ability of metals, and the second-order interaction effects with atomic number, atomic weight, and polarizing power (Z2/r) of metals. The electrochemical potential, AIP and IP of metals were found to promote adsorption, Z2/r, electronegativity and atomic radius of metals to inhibit adsorption significantly. Overall, the results provide theoretical support that helps elucidate compound pollution regulation among heavy metal pollutants in complex environmental systems.
Assessment of Pollution and Distribution of Heavy Metals in the Soil Near the Flotation Tailings Gornje Polje
Gut Microbiota and Accumulation of Heavy Metals: A New Study of Water Scorpions (Hemiptera: Nepidae)
Concentration Level and Health Risk Assessment of Heavy Metals in PM2.5 in Ambient Air of Makkah City, Saudi Arabia
The Remediation Mechanisms and Effects of Chemical Amendments for Heavy Metals in Contaminated Soils: A Review of Literature
Evaluation of Water Quality and Its Potential Threats Along River Drini Bardh Using Analytical Instrumental Techniques
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