Evaluation of the Physicochemical Behavior of Waste Water Treatment Polyelectrolytes with Metal Ions
作者： Eduardo A. López Maldonado , Mercedes T. Oropeza Guzmán , Georgina Pina-Luis , Adrián Ochoa-Terán
关键词: Polyelectrolyte 、 Titration 、 Qualitative inorganic analysis 、 Metal ions in aqueous solution 、 Absorbance 、 Ultraviolet visible spectroscopy 、 Inorganic chemistry 、 Salt (chemistry) 、 Metal 、 Chemistry
摘要: In this paper is describing the physicochemical behavior of polyelectrolytes (PEs) used in waste water treatment with mono-, di- and trivalent metal ions as K+, Mg2+, Zn2+, Fe3+, Sn2+, Cd2+, Pb2+, Cu2+, Ni2+, Al3+ Cr3+. A coagulant polyelectrolyte Poly(vinyl sulfate) potassium salt (PVSK), a commercial available Flocculant Trident 2756, were models for study. The colloidal titration UV-Vis spectroscopy technique was successfully implemented order to evaluate complexation PEs Toluidine Blue O (OTB) ability different displace OTB from PE-OTB complex form PE-metal ion complex. From experiments concluded that PVSK has high affinity Mg2+ while highest Sn2+ followed by Zn2+and Mg2+. absorbance profiles polyelectrolyte-OTB (Absorbance vs. Metal/PE) calculate association constants. On other hand, mass balance its constants polyelectrolyte-metal complexes. Thus affinities have constant. Metal present values
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