کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
627183 1455459 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling an aerobic submerged membrane bioreactor with ASM models on a large range of sludge retention time
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Modelling an aerobic submerged membrane bioreactor with ASM models on a large range of sludge retention time
چکیده انگلیسی
In this work, modelling of a submerged membrane bioreactor (SMBR) system for municipal wastewater treatment is evaluated using ASM1 and ASM3 models. Dynamic data (and pseudo steady state) collected in an aerobic SMBR working at high sludge retention time (SRT) are considered. Work is focused on suspended solids, excess sludge production, and nitrification kinetics. After a complete wastewater characterisation, satisfying prediction is obtained for volatile suspended solids (MLVSS) with default kinetic parameters. However, assumption of inert organics accumulation (XI) makes inaccurate the simulation at high SRT (110 days). Results also show that mineral suspended solids are significantly solubilised in such a process, and this should be taken into account for modelling total suspended solids. Default parameters for nitrification (μa, ba, KN) were not exact, and thus a new set of parameters was identified. A unique set of values was proposed for μa and ba, whereas half saturation coefficient (KN) was observed to vary with the MBR operating condition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 231, Issues 1–3, 31 October 2008, Pages 82-90
نویسندگان
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