کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4428162 1619282 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of a cactus mucilage biocomposite to remove total arsenic from water
ترجمه فارسی عنوان
ارزیابی یک ترکیبات زیستی کاکتوس موسیلاژ برای حذف آرسنیک کل از آب
کلمات کلیدی
آلژینات؛ دانه های تزئینی؛ آرسنات؛ جذب زیستی؛ جاذب؛ فاضلاب؛ فرآیند سبز
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


• New approach of cactus mucilage from Opuntia ficus-indica for As removal.
• Encapsulation of cactus mucilage in alginate beads as a new eco-friendly adsorbent.
• Biomaterial formulation was evaluated using Box–Behnken experimental design.
• Gelling fraction of mucilage has demonstrated great potential for As removal (63%).
• Enhanced separation of mucilage-As complex from wastewater using this biomaterial.

Mucilage fractions extracted from Opuntia ficus-indica cactus were captured in calcium alginate biobeads. The beads were tested as eco-friendly adsorbents to remove arsenic (As) from water, and their As removal efficiency was evaluated. Batch adsorption studies were performed using an incomplete factorial design by varying the concentrations of mucilage (0.5–2 mg L−1), sodium alginate (3–5%), and calcium chloride (0.5–1 mol L−1) incorporated in the biobeads. The optimal formulation of these adsorbent biobeads varied depending on the mucilage fraction. Thus, biocomposite formulated with 1.25 mg L−1 of gelling mucilage, 4% of sodium alginate, and 0.75 mol L−1 of calcium chloride eliminated up to 63% of As from water, with a capacity of 101.6 mg g−1, whereas the composite biobeads formulated with 1.25 mg L−1 of non-gelling mucilage reduced 59.8% of As from water, using the least amounts of sodium alginate and calcium chloride in the range tested, with a capacity of 97.1 mg g−1.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Technology & Innovation - Volume 6, November 2016, Pages 69–79
نویسندگان
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