کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
13417587 1841421 2020 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of wastewater treatment processes using molecular bacteriology
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Optimization of wastewater treatment processes using molecular bacteriology
چکیده انگلیسی
The study aims at evaluating the microbiome within different treatment steps, and the efficiency of ultra filtration (UF) and chlorination processes on bacteria removal for safe water reuse. Next-generation sequencing (NGS) techniques to characterize bacteria persistence in relation to the treatment facilities were applied. Results introduced comprehensive taxonomy of bacteria at family, class and phylum levels. Wastewater treatment processes are effective in reducing the bacterial community of family and species. The alpha diversity and taxonomical summaries of the samples suggested that the UF is essential in reducing bacteria species diversity. However, chlorination disinfection, the final step of treatment, needs further optimization because the UF process before chlorination showed better possible removal of bacterial communities when compared to the quality after chlorination. Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes persisted through the stages of treatment. Proteobacteria remained contently present; whereas bacteria of the other three phyla showed decrease between 2-fold to 100 fold following either ultrafiltration or chlorination. More studies are required to distinguish between viable and non-viable microorganisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Water Process Engineering - Volume 33, February 2020, 101030
نویسندگان
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