کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7481006 1485242 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microbial enzyme and biomass responses: Deciphering the effects of earthworms and seasonal variation on treating excess sludge
ترجمه فارسی عنوان
پاسخ های آنزیم های میکروبی و بیوماس: تفسیر اثرات کرم های خاکی و تغییرات فصلی در درمان لجن اضافی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This paper reports on a seasonal pattern comparison of microbial enzymatic activities and biomass responses based on a conventional biofilter (BF, without earthworm) and a vermifilter (VF, with earthworm, Eisenia fetida) for excess sludge treatment. The volatile suspended solids (VSS) reduction, viable cell number and enzyme activities were assayed to probe what made the VF operate stably. The results indicated that the earthworm activities can polish the VSS reduction with 27.17% more than the BF. Though the VF had a lower level in the viable cell number compared with the BF, the earthworm strongly improved the microbial enzymatic activities such as INT-dehydrogenase, protease, β-glucosidase and amylase, which can explain the excellent performance of VSS reduction. The correlation analysis documented that the VSS reduction was positively correlated with microbial enzyme activities. More importantly, the earthworm enabled the VF to avoid the detrimental influence of temperature, which guaranteed a stable performance during seasonal variations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 170, 1 April 2016, Pages 207-214
نویسندگان
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