Synergistic removal of lead and zinc ions from the wastewater by cross-linked carbamate starch-g-triethylenetetramine in the presence of sodium butyl xanthate.

In order to effectively remove heavy metal ions in the wastewater by flocculation method, a cross-linked carbamate starch-g-triethylenetetramine (CCS-g-TETA) as a flocculant was prepared by crosslink and graft polymerization using sodium tri-metaphos…

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