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Journal of Chemistry
/
2017
/
Article
/
Tab 2
/
Research Article
Lignitic Humic Acids as Environmentally-Friendly Adsorbent for Heavy Metals
Table 2
Average adsorption efficiencies for single Cu
2+
ions and Cd
2+
, Cu
2+
, Pb
2+
, and Zn
2+
ions adsorbed from their mixture.
Cu
2+
(single)
Cd
2+
Cu
2+
Pb
2+
Zn
2+
99.9%
90.3%
94.4%
92.8%
92.0%