کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10395168 | 888971 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of denitrification at low temperature using encapsulated Paracoccus denitrificans, Pseudomonas fluorescens and mixed culture
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
The aim of this work was to compare denitrification activity of three types of encapsulated biomass containing pure culture of Paracoccus denitrificans or Pseudomonas fluorescens or mixed culture of psychrophilic denitrifiers cultivated at 5 °C from activated sludge. The experiments were held with synthetic wastewater containing 50 mg Lâ1NNO3- under the temperature 15, 10, 8 and 5 °C. Specific denitrification rates related to the weight of pellets and to the protein content were calculated and the temperature coefficients describing the dependence of denitrification rate on the temperature were determined. Although the mixed culture showed the highest denitrification rate at the temperatures below 10 °C, using of pellets containing pure culture is recommended as the mixed culture has slow growth rate and its activity at temperatures above 10 °C is very low.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 7, April 2011, Pages 4661-4666
Journal: Bioresource Technology - Volume 102, Issue 7, April 2011, Pages 4661-4666
نویسندگان
Lenka Vacková, Martin Srb, Radek Stloukal, JiÅÃ Wanner,