کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4996794 1368274 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced methanogenic degradation of cellulose-containing sewage via fungi-methanogens syntrophic association in an anaerobic membrane bioreactor
ترجمه فارسی عنوان
تشدید تخریب متانوژنیک فاضلاب حاوی سلولز از طریق ترکیب قارچ-متانوژنز در یک بیوراکتور غشایی بی هوازی
کلمات کلیدی
انجمن قارچها و متانوژنز، بیوراکتور غشایی بی هوازی، تجزیه متانوژن، فاضلاب حاوی سلولز، تجزیه و تحلیل میکروبی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


- Cellulose-containing sewage was effectively treated by an AnMBR at room temperature.
- Rich abundance of fungi considerably enhanced cellulose decomposition at HRT 8 h.
- H2 production by fungi and consumption by methanogens formed a syntrophic association.
- Methanogenic degradation was largely promoted due to fungi-methanogens association.

An anaerobic membrane bioreactor was configured for methanogenic degradation of cellulose-containing sewage. The degradation performance and microbial changes were evaluated under five hydraulic retention times (HRTs). The results indicated the methane production was largely enhanced with 92.6% efficiency of chemical oxygen demand (COD) converting to methane and 80% proportion of methane in produced biogas, meanwhile the biomass yield presented the fewest at the shortest HRT 8 h. Enhanced methane production with decreased biomass yield was attributed to an association between fungi and methanogens. Microbial analysis showed fungi Basidiomycota and methanogen Methanoregula apparently established the association, especially Basidiomycota reaching 93% relative abundance at HRT 8 h. Specific methanogenic activity (SMA) and biochemical methane potential (BMP) tests suggested the association was derived from H2 production by fungi and H2 consumption by methanogens, during the process of cellulose degradation. The methanogenic degradation of cellulose-containing sewage was markedly promoted via the fungi-methanogens syntrophic association.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 245, Part A, December 2017, Pages 810-818
نویسندگان
, , , , , ,