کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1985956 1540234 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Remediation of distilleries wastewater using chitosan immobilized Bentonite and Bentonite based organoclays
ترجمه فارسی عنوان
تصفیه فاضلاب های تقطیر با استفاده از ایزوتوپ های بنتونیت و بنتونیت بی تحرک کیتوزان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی


• Modified chitosan immobilized bentonite and modified bentonite were prepared.
• Color removal and COD reduction of distillery spent wash was investigated.
• (mCIB)3 was found to be the most effective adsorbent.
• (mCIB)3 acts as low cost and naturally occurring adsorbent for wastewater treatment.

Organic–inorganic nanocomposite, namely chitosan immobilized Bentonite (CIB) with chitosan content of 5% was synthesized in an acetic acid solution (2%). Organically modified CIB and Bentonite (mbent.) were prepared by intercalating cetyl trimethylammonium bromide (CTAB) as a cationic surfactant at doses equivalent to 1.5 and 3 times the cation exchange capacity (CEC) of clay. The prepared samples were characterized using FTIR, XRD and SEM to explore the interlayer structure and morphology of the resultant nanocomposites. The remediation of distilleries (vinasse) wastewater process was carried out using different adsorbents including CIB, modified CIB (mCIB), Bentonite (bent.), modified Bentonite (mbent.) and chitosan at different contact time. The results showed that the packing density of surfactant used in the synthesis of organoclays strongly affects the sorption capacity of the clay mineral and also showed that (mCIB)3 was found to be the most effective sorbent in the purification of distilleries wastewater with 83% chemical oxygen demand (COD) reduction and 78% color removal.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 86, May 2016, Pages 750–755
نویسندگان
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