کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
232490 465289 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Start up performance of biochar packed bed anaerobic digesters
ترجمه فارسی عنوان
راه اندازی عملکرد هاضم های بی هوازی تخت بسته بندی شده بیوچار
کلمات کلیدی
راه اندازی؛ هضم بی هوازی. بیوچار؛ بیوفیلم؛ جوامع میکروبی متان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

The development of microbial biofilm community in biochar packed anaerobic digesters was explored during start up at demonstration scale on high strength grease trap waste wastewater. Total and soluble chemical oxygen demand reduction reached 68% and 69%, respectively, after just fifty nine days at an HRT of 1.8 days. Methane head space gas compositions averaged across all reactors exceeded 60% and total methane production rates approached the theoretical maximum per kilogram of chemical oxygen demand reduced. Aggressive consumption of volatile organic acids correlated linearly with an increase in pH from 5.86 in the mixing reactor to a value of 7.61 in the final effluent. Both soluble and total phosphorous and total nitrogen were relatively unaffected by the treatment. Active methanogenic microbial biofilm communities possessing high proportions of methanogens were established despite the presence of feed wastewater streams possessing significantly different populations of planktonic bacteria. In sum, these results indicate that biochar alone can support the rapid development of robust well balanced methanogenic microbial biofilms that effectively minimize the impact of influent microbial communities on the reactor microbial biofilm communities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Water Process Engineering - Volume 9, February 2016, Pages e7–e13
نویسندگان
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