کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
687959 889374 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Physical and chemical characteristics of waste activated sludge treated ultrasonically
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Physical and chemical characteristics of waste activated sludge treated ultrasonically
چکیده انگلیسی

This study investigates the physical–chemical characteristics of sludge treated with controlled levels of ultrasound. The results indicate that the energy used for sonication strongly influences the physical–chemical characteristics of sludge. Based on turbidity and settling velocity measurements, 1000 kJ/kg total solids (TSs) is recommended as an optimal specific energy input for improving sludge settling. For purposes of sludge disintegration, applying higher specific energies to the sludge is more efficient than applying lower levels. Nevertheless, a single, optimal energy level for thoroughly disintegrating sludge could not be determined. Possible mechanisms of ultrasonic treatment are also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing: Process Intensification - Volume 48, Issue 1, January 2009, Pages 187–194
نویسندگان
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