کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9674216 | 1453200 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heavy metal precipitation by polycation-polyanion complex of PEI and its phosphonomethylated derivative
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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![عکس صفحه اول مقاله: Heavy metal precipitation by polycation-polyanion complex of PEI and its phosphonomethylated derivative Heavy metal precipitation by polycation-polyanion complex of PEI and its phosphonomethylated derivative](/preview/png/9674216.png)
چکیده انگلیسی
The removal of various heavy metal ions such as Cu2+, Co2+, Zn2+, Ni2+ and Pb2+ from aqueous solutions by precipitation with polyelectrolyte complex of PPEI and PEI was conducted. Heavy metal binding with PPEI was initially allowed to occur and then upon equilibration, PEI was added to initiate precipitation of the polyelectrolyte complex together with the heavy metal ion. The PPEI-PEI system was found effective for heavy metal scavenging purposes even in the presence of high concentrations of non-transition metal ions like Na+. Heavy metal concentration may be reduced beyond emission standards for industrial wastewaters. The PPEI-PEI polyelectrolyte complex was found to be more effective than traditional precipitation methods for the treatment of a representative electroless Ni plating waste solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 123, Issues 1â3, 31 August 2005, Pages 203-209
Journal: Journal of Hazardous Materials - Volume 123, Issues 1â3, 31 August 2005, Pages 203-209
نویسندگان
Ronald R. Navarro, Shinji Wada, Kenji Tatsumi,