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Researches on the impact of common ions onto sediments are of great importance for the study of the heavy metal adsorption mechanisms. Considering the surface sediments from the relatively clean reach in the Baotou section of the Yellow River as the adsorbent, this work presents the impacts of common ions (Na+, Mg2+, K+, Ca2+, Cl−, SO42−, and NH4+) on heavy metals (Cu2+, Zn2+, Cd2+, and Pb2+) adsorption...
The competitive adsorption and the release of selected heavy metals and their speciation distribution before and after adsorption in the Yellow River sediments are discussed. The adsorption of metals onto sediments increases with increasing pH value and decreases with increasing ionic strength. The competitive coefficient Kc and the distribution coefficient Kd are obtained to analyze the competitive...
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