کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4997976 1459921 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of pressurized aeration on organic degradation efficiency and bacterial community structure of activated sludge treating saline wastewater
ترجمه فارسی عنوان
اثرات هوادهی تحت فشار بر راندمان تجزیه آلی و ساختار جامعه باکتری لجن فعال با استفاده از فاضلاب شور
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This study was aimed to investigate the effect of moderate pressure on organic matter removal efficiency and microbial population of activated sludge treating saline wastewater. The activated sludge was cultivated with a gradual increase of salt concentrations under gage pressure of 0.3 MPa for 71 days. Microbial diversities of activated sludge sampled in different stages of domestication were investigated by Illumina sequencing technology. Results showed that pressurized aeration could improve the treatment efficiency and the dehydrogenase activity (DHA) of activated sludge, especially at high salinity (35, 50 g NaCl L−1). Bacterial richness and community diversity of activated sludge in the pressurized reactor were significantly higher than those in the control reactor. Microbial population structures were quite different between the two reactors. More species originating from fresh wastewater biological treatment process would survive and remain in pressurized activated sludge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 222, December 2016, Pages 182-189
نویسندگان
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