کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4997713 | 1459916 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anaerobic stabilization of waste activated sludge at different temperatures and solid retention times: Evaluation by sludge reduction, soluble chemical oxygen demand release and dehydration capability
ترجمه فارسی عنوان
تثبیت بی هوازی لجن فعال در دماهای مختلف و زمان نگهداری جامد: ارزیابی با کاهش لجن، قابلیت آزاد سازی تقاضای اکسیژن محلول و قابلیت آبگیری
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Anaerobic treatment is the most widely used method of waste activated sludge (WAS) stabilization. Using a semi-continuous stirring tank with condensed WAS, we investigated effects of decreasing the solid retention time (SRT) from 32Â days to 6.4Â days on sludge reduction, soluble chemical oxygen demand (SCOD) release and dehydration capability, along with anaerobic digestion operated at medium temperature (MT-AD) or anaerobic digestion operated at room temperature (RT-AD). Results showed that effects of temperature on SCOD release were greater at SRT of 32Â d and 6.4Â d. When SRT was less than 8Â d, total solids (TS), volatile solids (VS) and capillary suction time (CST) did not change significantly. CST was lowest at SRT of 10.7Â days, indicating best condition for sludge dehydration. Principal component analysis (PCA) showed that the most optimum SRT was higher than 10.7Â d both in MT-AD or RT-AD.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 227, March 2017, Pages 398-403
Journal: Bioresource Technology - Volume 227, March 2017, Pages 398-403
نویسندگان
Xiyao Li, Yongzhen Peng, Yuelan He, Shuying Wang, Siyu Guo, Lukai Li,