کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
680120 1459964 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of glyco-blotting for identification of structures of polysaccharides causing membrane fouling in a pilot-scale membrane bioreactor treating municipal wastewater
ترجمه فارسی عنوان
استفاده از گلیکو بلاتینگ برای شناسایی سازه های پلی ساکارید باعث ایجاد ضایعات غشا در محیط بیولوژیکی غشایی در آزمایشگاه تصفیه فاضلاب شهری
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


• A new approach for the analysis of polysaccharides in wastewater systems is proposed.
• Fairly clear MS spectra could be obtained for polysaccharides in an MBR.
• Structures and origins of polysaccharides were postulated based on MS spectra.
• Major polysaccharides in the foulants were not dominant in the supernatant.
• CPS and/or LPS seemed to be key players in the evolution of membrane fouling in MBRs.

sA new approach for the analysis of polysaccharides in membrane bioreactor (MBR) is proposed in this study. Enrichment of polysaccharides by glyco-blotting, in which polysaccharides are specifically collected via interactions between the aldehydes in the polysaccharides and aminooxy groups on glycoblotting beads, enabled MALDI-TOF/MS analysis at a high resolution. Structures of polysaccharides extracted from fouled membranes used in a pilot-scale MBR treating municipal wastewater and those in the supernatant of the mixed liquor suspension in the MBR were investigated. It was found that the overlap between polysaccharides found in the supernatants and those extracted from the fouled membrane was rather limited, suggesting that polysaccharides that dominate in supernatants may not be important in membrane fouling in MBRs. Analysis using a bacterial carbohydrate database suggested that capsular polysaccharides (CPS) and/or lipo-polysaccharides (LPS) produced by gram-negative bacteria are key players in the evolution of membrane fouling in MBRs.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 179, March 2015, Pages 180–186
نویسندگان
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