کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
584572 | 1453184 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative investigation of N,Nâ²-bis-(dithiocarboxy)piperazine and diethyldithiocarbamate as precipitants for Ni(II) in simulated wastewater
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparative investigation of N,Nâ²-bis-(dithiocarboxy)piperazine and diethyldithiocarbamate as precipitants for Ni(II) in simulated wastewater Comparative investigation of N,Nâ²-bis-(dithiocarboxy)piperazine and diethyldithiocarbamate as precipitants for Ni(II) in simulated wastewater](/preview/png/584572.png)
چکیده انگلیسی
The performances of a coordination polymerization precipitant, N,Nâ²-bis-(dithiocarboxy)piperazine (BDP) were compared with the widely used heavy metal precipitant, diethyldithiocarbamate (DDTC), through the treatment of three kinds of nickel-containing wastewaters, NiSO4, nickel citrate (NiCA) and Ni2+-dye. Results indicated that both BDP and DDTC at their stiochiometric doses could reduce 50.00 mg lâ1 free nickel(II) to lower than 1.0 mg lâ1 (discharge limit of nickel ions in China) and 10% precipitants doses increase could treat NiCA containing 50.00 mg lâ1 Ni2+ to meet the discharge limit. But [NiBDP]n coordination polymerization precipitates had more rapid settling speed than Ni(DDTC)2 precipitates. It was also observed that BDP could still partly remove Reactive Brilliant Red X-3B from Ni(II)-dye integrated wastewater through the adsorption of the precipitates [NiBDP]n, in addition to precipitating Ni(II). A 1:1 stiochiometric dose of BDP/Ni(II) could decrease Ni(II) from 50.00 to 0.87 mg lâ1, and simultaneously reduce the dye from 30.00 to 19.52 mg lâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 142, Issues 1â2, 2 April 2007, Pages 437-442
Journal: Journal of Hazardous Materials - Volume 142, Issues 1â2, 2 April 2007, Pages 437-442
نویسندگان
Fenglian Fu, Runming Chen, Ya Xiong,