کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6482540 | 1415895 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of ferrous iron dosing strategy on aerobic granulation of activated sludge and bioavailability of phosphorus accumulated in granules
ترجمه فارسی عنوان
تأثیر راهبرد دوز آهن بر گرانولازی هوازی لجن فعال و قابلیت زیستی فسفر انباشته شده در گرانول
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
Two different Fe2+ dosing strategies (with the same daily Fe2+ dosage of 19.5 mg/d), i.e. constant (R1 with fixed 5 mg Fe/L in influent) and pulse dosing (R2 with 30 mg Fe/L in influent only during the first cycle every day) were tested in two identical reactors and their comparison was conducted on granule formation, stability and performance on pollutants removal and P accumulation. Results showed that granules appeared earlier and relatively smaller in R2 (day 9), while biomass increased faster in R1. Relatively high and stable P removal could be achieved, averagely 92% in R1 and 81% in R2. The granules in R1 accumulated more P (45.6 mg/g-SS) with higher bioavailability (95%) after 48 days' operation, especially with high non-apatite inorganic P content (36.2 mg/g-SS). This work also suggests that Fe2+ dosing strategy can be applied in conventional activated sludge processes when high bioavailable P recovery is targeted.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology Reports - Volume 2, June 2018, Pages 7-14
Journal: Bioresource Technology Reports - Volume 2, June 2018, Pages 7-14
نویسندگان
Wei Cai, Meishan Jin, Ziwen Zhao, Zhongfang Lei, Zhenya Zhang, Yasuhisa Adachi, Duu-Jong Lee,