کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4762878 | 1422948 | 2017 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of elevated 4-chlorophenol loads on components of polysaccharides and proteins and toxicity in an activated sludge process
ترجمه فارسی عنوان
اثرات بارهای بالقوه 4-کلروفنل بر مولفه های پلی ساکارید ها و پروتئین ها و سمیت در یک پروسه لجن فعال
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کلمات کلیدی
4-کلروفنل، اجزای لجن، سمیت لجن، پروتئومیکس، پیگیری بیوراکتور دسته ای،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
In this study, the effects of elevated influent 4-chlorophenol (4-CP) loads on components of polysaccharides and proteins and toxicity as well as their correlation in an activated sludge process were investigated. The toxicity in sludge was evaluated via a luminescent bacterium acute toxicity bioassay. Activated sludge, which was gradually acclimated via elevating influent 4-CP loads in a sequencing batch bioreactor (SBR), was used as the acclimated SBR. Another operated SBR without influent 4-CP was used as the control SBR. Results showed that after activated sludge was successfully acclimated with 10Â mg/L influent 4-CP, the influence of gradually elevated 4-CP loads on acclimated SBR was insignificant and the influent 4-CP was quickly degraded. However, the main components of polysaccharides and proteins in activated sludge had a significant change and the sludge toxicity basically increased with the elevated influent 4-CP loads. The correlation between the proteins and toxicity in activated sludge was significantly higher than that of the correlation between the polysaccharides and toxicity at different influent 4-CP loads. Proteomics analysis indicated that the up-regulated proteins in acclimated SBR directly or indirectly played a significant role in degrading 4-CP, resisting 4-CP toxicity and reducing sludge toxicity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 330, 15 December 2017, Pages 236-244
Journal: Chemical Engineering Journal - Volume 330, 15 December 2017, Pages 236-244
نویسندگان
Jianguo Zhao, Xiurong Chen, Lu Wang, Yan Xu, Jiahui Li, Yahe Li,