کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
686138 | 889062 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of l-cysteine on Ni-Cu sulfide and marmatite bioleaching by Acidithiobacillus caldus
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of l-cysteine on Ni-Cu sulfide and marmatite bioleaching by Acidithiobacillus caldus Effects of l-cysteine on Ni-Cu sulfide and marmatite bioleaching by Acidithiobacillus caldus](/preview/png/686138.png)
چکیده انگلیسی
The effect of l-cysteine in different concentrations on the bioleaching of Ni-Cu sulfide and marmatite were studied with a moderately thermophilic, sulfur-oxidizing bacterium, strain of Acidithiobacillus caldus. X-ray diffraction (XRD) observations showed the change of bioleached solid residues and the effect of l-cysteine on the surface charges of minerals. It was found that adding certain amounts of l-cysteine to the leaching system of Ni-Cu sulfide largely enhanced the leaching rate, while l-cysteine inhibited the bioleaching of marmatite by A. caldus. The mechanism of l-cysteine interaction with mineral surfaces was studied by means of zeta potential determination and IR spectra.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 100, Issue 3, February 2009, Pages 1383-1387
Journal: Bioresource Technology - Volume 100, Issue 3, February 2009, Pages 1383-1387
نویسندگان
Zhiguo He, Fengling Gao, Hui Zhong, Yuehua Hu,