کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4453915 1620816 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of aeration rate on composting of penicillin mycelial dreg
ترجمه فارسی عنوان
تأثیر میزان هوادهی بر کمپوست گندم پنی سیلین منیزیم
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
چکیده انگلیسی

Pilot scale experiments with forced aeration were conducted to estimate effects of aeration rates on the performance of composting penicillin mycelial dreg using sewage sludge as inoculation. Three aeration rates of 0.15, 0.50 and 0.90 L/(min·kg) organic matter (OM) were examined. The principal physicochemical parameters were monitored during the 32 day composting period. Results showed that the higher aeration rate of 0.90 L/(min·kg) did not corresponded to a longer thermophilic duration and higher rates of OM degradation; but the lower aeration rate of 0.15 L/(min·kg) did induce an accumulation of NH4+-N contents due to the inhibition of nitrification. On the other hand, aeration rate has little effect on degradation of penicillin. The results show that the longest phase of thermophilic temperatures ≥ 55°C, the maximum NO3−-N content and seed germination, and the minimum C/N ratio were obtained with 0.50 L/(min·kg) OM. Therefore, aeration rates of 0.50 L/(min·kg) OM can be recommended for composting penicillin mycelial dreg.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 37, 1 November 2015, Pages 172–178
نویسندگان
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