期刊
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
卷 40, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.colcom.2020.100349
关键词
Chelating resin; Heavy metal; Adsorption; Environment; Sewage treatment
The CPS-DI chelating resin synthesized using poly-chloromethyl styrene has high affinity for Cu (II), Pb (II), and Ni (II) ions, with excellent reusability. Thermodynamic parameters indicate a higher temperature is beneficial to the adsorption process. This resin effectively treats and recovers heavy metal ions, solving the problem of advanced treatment of wastewater containing heavy metal ions.
Poly-chloromethyl styrene (CPS) was used as a carrier to synthesize a poly-chloromethyl styrene chelating resin (CPS-DI) containing heterofluorenone side groups with 4, 5-diazafluoren-9-one. The adsorption performance of the chelating resin on Cu (II), Ni (II), and Pb (II) was studied by batch experiments. Results show that CPS-DI chelating resin has a high affinity for Cu (II), Pb (II), and Ni (II) ions. The maximum adsorption capacities of Cu (II), Pb (II), and Ni (II) are 2.55, 1.34 and 0.94 mmol/g resin, respectively. The parameters on thermodynamic give the adsorption process spontaneous, and a higher temperature is beneficial to the adsorption process. CPS-DI chelating resin has excellent reusability. The column experiment simulates the adsorption process of CPS-DI chelating resin to metal ions, indicating that CPS-DI chelating resin can treat and recover heavy metal ions such as Cu (II), Pb (II), and Ni (II), effectively solve the problem of advanced treatment of wastewater containing heavy metal ions.
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