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- W3151416808 abstract "Polyelectrolyte-enhanced ultrafiltration(PEUF) was investigated to separate Pb2+ and Zn2+ from aqueous solutions by PMA as a chalenting agent.Effects of pH,concentrations of PMA and the added sault on seperation rate(Sr) was studied.Sr inceased gradually before the PMA concentration reached 200 mg/L,and then it decreased,the best Sr value is 54.47%.At pH between 2 to 6,Sr increased gradually with pH reached a maxium value,and then deceased,It was preferable for the selective separation to control pH=4,and the Sr value is 71.34% at this time.PMA and pH play important roles in competitive complexation between Pb2+ and Zn2+,the increased concentration of PMA and pH enhanced the competitive complexation,when PH reached to 5,PMA concentration is 200 mg/L,the competitive complexation of Zn2+ was lowest.The concentration of the added sault have an important infect on Sr.The experiment was performed at pH=4 and PMA=200 mg/L,controlled the concentration of Sodium sulphate from 0.01 to 0.08 mol/L,When the concentration of sodium sulphate is 0.06 mol/L,Sr reached the best.The addition of Na2SO4 weakened the competitive complexation effect of Zn2+." @default.
- W3151416808 created "2021-04-13" @default.
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- W3151416808 date "2014-01-01" @default.
- W3151416808 modified "2023-09-23" @default.
- W3151416808 title "Separation of Pb~(2+) and Zn~(2+) by Using Polymer-Enhanced Ultrafilation" @default.
- W3151416808 hasPublicationYear "2014" @default.
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