کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4753330 | 1416555 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of freeze-thaw process on physical properties, microbial activities and population structures of anaerobic sludge
ترجمه فارسی عنوان
اثر فرایند یخ زدگی بر خواص فیزیکی، فعالیت های میکروبی و ساختار جمعیت لجن بی هوازی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
Effects of the freeze-thaw process on physical properties, cell viability, microbial activities and population structures of anaerobic sludge were investigated. It was found that the sludge volume index was greatly reduced from 16.4Â mL/g in the original sludge to 4.0Â mL/g in the solid fraction of the frozen-thawed sludge. Even though the freeze-thaw process decreased cell viability in the solid fraction of the frozen-thawed sludge, microbial activity tests showed that the freeze-thaw process enhanced acidogenic activity approximately 20%. The enhanced acidogenic activity of the solid fraction was in good agreement with the enrichment of Clostridiaceae, Porphyromonadaceae and Propionibacteriaceae found in the solid fraction. The relative abundances of Proteobacteria families Oxalobacteraceae, Moraxellaceae, and Pseudomonadaceae were found to be highest in the liquid fraction where they form a substantial proportion of the bacterial community (a total of 59%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Bioscience and Bioengineering - Volume 123, Issue 4, April 2017, Pages 474-481
Journal: Journal of Bioscience and Bioengineering - Volume 123, Issue 4, April 2017, Pages 474-481
نویسندگان
Chantaraporn Phalakornkule, Sasikarn Nuchdang, Maneerat Khemkhao, Wuttichai Mhuantong, Sarunyou Wongwilaiwalin, Sithichoke Tangphatsornruang, Verawat Champreda, Jiraprat Kitsuwan, Savitri Vatanyoopaisarn,