کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7081195 | 1459999 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Treatment of high-salinity chemical wastewater by indigenous bacteria - bioaugmented contact oxidation
ترجمه فارسی عنوان
درمان با فاضلاب شیمیایی با شوری با استفاده از باکتری های بومی - اکسیداسیون مخاطب زیستی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
A 90Â m3 biological contact oxidation system in chemical factory was bioaugmented with three strains of indigenous salt-tolerant bacteria. These three strains were screened from contaminative soil in situ. Their activity of growth and degradation was investigated with lab-scale experiments. Their salt-tolerant mechanism was confirmed to be compatible-solutes strategy for moderately halophilic bacteria, with amino acid and betaine playing important roles. The running conditions of the system were recorded for 150Â days. The indigenous bacteria had such high suitability that the reactor got steady rapidly and the removal of COD maintained above 90%. It was introduced that biofilm fragments in sedimentation tank were inversely flowed to each reaction tank, and quantitative PCR demonstrated that this process could successfully maintain the bacterial abundance in the reaction tanks. In addition, the T-RFLP revealed that bioaugmented strains dominated over others in the biofilm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 144, September 2013, Pages 380-386
Journal: Bioresource Technology - Volume 144, September 2013, Pages 380-386
نویسندگان
Qiang Li, Mengdi Wang, Jun Feng, Wei Zhang, Yuanyuan Wang, Yanyan Gu, Cunjiang Song, Shufang Wang,