کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4996437 | 1459894 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Salt-tolerance aerobic granular sludge: Formation and microbial community characteristics
ترجمه فارسی عنوان
لجن گرانول ایروبیک تحمل به نمک: ویژگی های تشکیل و ویژگی های میکروبی
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کلمات کلیدی
تصفیه فاضلاب، لجن گرانول ایروبیک تحمل به نمک، تشکیل، جامعه میکروبی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The salt-tolerance aerobic granular sludge (SAGS) dominated by moderately halophilic bacteria was successfully cultured in a 9% (w/v) salty, lab-scale sequence batch reactor (SBR) system. Influence of high salinity (0-9% w/v NaCl) on the formation, performance and microbial succession of the SAGS were explored. Crystal nucleus hypothesis, selection pressure hypothesis and compressed double electric layers hypothesis were used to discuss the formation mechanism of SAGS. Notably, salinity could be seen as a kind of selection pressure contributed to the formation of SAGS, while salinity also declined the performance of SAGS system. High throughput 16S rRNA gene analysis showed that the salinity had great influence on the species succession and community structure of SAGS. Moreover, Salinicola and Halomonas were dominant at 9% salt concentration, therefore moderate halophiles were identified as functional groups for the tolerance of hypersaline stress.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 249, February 2018, Pages 132-138
Journal: Bioresource Technology - Volume 249, February 2018, Pages 132-138
نویسندگان
Dong Ou, Hui Li, Wei Li, Xiao Wu, Yi-qiao Wang, Yong-di Liu,