کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7079208 1459993 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of sludge reduction and carbon source recovery from excess sludge by the advanced Sludge reduction, Inorganic solids separation, Phosphorus recovery, and Enhanced nutrient Removal (SIPER) wastewater treatment process
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Evaluation of sludge reduction and carbon source recovery from excess sludge by the advanced Sludge reduction, Inorganic solids separation, Phosphorus recovery, and Enhanced nutrient Removal (SIPER) wastewater treatment process
چکیده انگلیسی
An advanced wastewater treatment process involving Sludge reduction, Inorganic solids separation, Phosphorus recovery, and Enhanced nutrient Removal (SIPER) was developed to reduce sludge production, prevent the accumulation of inorganic solids, recover phosphorus, and enhance nutrient removal. The feasibility of recovering carbon (C)-source from excess sludge to enhance nutrient removal and the sludge reduction potential of the process was evaluated. The results showed that sludge hydrolysis and acidification yields were 20 ± 3% and 34 ± 2%, respectively. The COD/TN and VFA/TP ratios for the supernatant of alkaline-treated sludge were 2.8 and 2.5 times those in the influent, respectively. Nutrients were removed effectively in the system, especially TN, for which the removal efficiency reached 80 ± 2%. The C-source recovered from the excess sludge was successfully employed as an internal C-source for enhanced nutrient removal. The observed sludge yield of the system was 0.096 g VSS g COD−1, demonstrating the excellent sludge reduction potential of this process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 150, December 2013, Pages 344-351
نویسندگان
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