کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5754253 1620797 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structure and activity of thermophilic methanogenic microbial communities exposed to quaternary ammonium sanitizer
ترجمه فارسی عنوان
ساختار و فعالیت جوامع میکروبی متانولوژن ترموفیلیک که در معرض مواد ضدعفونی کننده دیاکسیدکربن قرار دارند
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
چکیده انگلیسی

Food processing facilities often use antimicrobial quaternary ammonium compound (QAC) sanitizers to maintain cleanliness. These QACs can end up in wastewaters used as feedstock for anaerobic digestion. The aim of this study was to measure the effect of QAC contamination on biogas production and structure of microbial communities in thermophilic digester sludge. Methane production and biogas quality data were analyzed in batch anaerobic digesters containing QAC at 0, 15, 50, 100 and 150 mg/L. Increasing sanitizer concentration in the bioreactors negatively impacted methane production rate and biogas quality. Microbial community composition data was obtained through 16S rRNA gene sequencing from the QAC-contaminated sludges. Sequencing data showed no significant restructuring of the bacterial communities. However, significant restructuring was observed within the archaeal communities as QAC concentration increased. Further studies to confirm these effects on a larger scale and with a longer retention time are necessary.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 56, June 2017, Pages 164-168
نویسندگان
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