کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10236300 | 45143 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison between acclimated and unacclimated biomass affecting anaerobic-aerobic transformations in the biological removal of phosphorus
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Acclimated and unacclimated experiments were conducted with propionic/acetic acids wastewater and activated sludge (biomass) long-term cultured, respectively, with acetic and propionic acid enriched wastewater. Biomass acclimated with the propionic acid enriched wastewater, compared with unacclimated, had a increased specific soluble ortho-phosphate (SOP) release (increased from 0.75 to 0.91Â mmol-P/g-MLVSS) and uptake (from 0.96 to 1.25Â mmol-P/g-MLVSS), SOP-uptake/SOP-release ratio (from 1.28 to 1.38Â mol/mol), net SOP removal (from 0.46 to 0.69Â mmol/l) and SOP removal efficiency (from 61.33 to 92.00%). However, the ratios of both anaerobic accumulated and aerobic utilised polyhydroxyalkanoates (PHA) were reduced. The reasons for these changes were due to the decreased glycogen transformations and cell growth as well as increased phosphorus accumulating organisms (PAO) involved in the acclimated biomass. Further investigation indicates that the propionic acid enriched wastewater was less efficient for enhanced biological phosphorus removal (EBPR) than acetic acid in short-term tests, but much more efficient in the long-term cultured experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 40, Issue 2, February 2005, Pages 723-732
Journal: Process Biochemistry - Volume 40, Issue 2, February 2005, Pages 723-732
نویسندگان
Yinguang Chen, Yin-Sheng Chen, Qing Xu, Qi Zhou, Guowei Gu,