Abstract：
:This study involved a comparison between mesophilic (MAD) and thermophilic anaerobic digestion (TAD) of municipal sludge with high (10%) solids content; the reactor performance and the response of total and active microbial communities to changes in sludge properties were monitored. Both TAD and MAD were stably maintained. TAD performed better than MAD in biogas production and volatile total solids reduction upon feeding sludge 1. TAD was slightly inhibited by ammonia, whereas the performance of MAD was improved when sludge 2 was used as the feedstock. Alpha- and beta-diversity analyses revealed significant differences in the microbial community based on DNA and RNA datasets, indicating that not all microbes function in AD. The active microbial community diversity and composition in MAD and TAD were also driven by sludge properties. Moreover, MAD showed significantly higher richness and diversity of the active microbial community compared with TAD, regardless of changes in sludge properties.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wu ZL,Lin Z,Sun ZY,Gou M,Xia ZY,Tang YQdoi
10.1016/j.biortech.2020.122851subject
Has Abstractpub_date
2020-04-01 00:00:00pages
122851eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30120-6journal_volume
302pub_type
杂志文章abstract：:Pavlova sp. was employed to evaluate the efficiency of different lipid extraction methods. The microalgal crude lipids content determined using the mixed solvent with ultrasonic method was 44.7 wt.%. The triglyceride content obtained by the mixed solvent method was 15.6 wt.%. The extraction yield was the FAME yield di...
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