کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
36621 45138 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rational basis for optimal design of sequencing batch reactors with multiple anoxic filling for nitrogen removal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Rational basis for optimal design of sequencing batch reactors with multiple anoxic filling for nitrogen removal
چکیده انگلیسی

The paper defines the rational framework for understanding the mechanism of nitrogen removal in SBRs with multiple anoxic fill phases. Mass balance between denitrification potential and nitrate nitrogen introduced in each anoxic period sets the basis for optimal design. System evaluation shows that additional anoxic filling primarily avoids oversized reactor volumes as it reduces the internal recycle requirement. Low effluent nitrate levels can be achieved with dual anoxic systems with optimal hydraulic retention times. Higher denitrification potentials obtained by increasing the duration of the total anoxic period within the process phase (higher TDN/TP) can best be utilized by introducing multiple anoxic filling. Such systems may be optimized with an intermittent aeration continuous filling mode, which may be operated either with denitrification potential or available nitrate limitation. Model simulation of SBR behaviour also supports the results of optimal system design derived from process stoichiometry.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 41, Issue 4, April 2006, Pages 901–908
نویسندگان
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