DOI: 10.1016/j.watres.2018.05.048
Scopus记录号: 2-s2.0-85049354730
论文题名: Anammox granular sludge in low-ammonium sewage treatment: Not bigger size driving better performance
作者: Zhu G. ; Wang S. ; Ma B. ; Wang X. ; Zhou J. ; Zhao S. ; Liu R.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 142 起始页码: 147
结束页码: 158
语种: 英语
英文关键词: Abundance
; Anammox
; Granular sludge size
; Low-ammonium sewage treatment
; Microbial mechanism
; N2O emission
Scopus关键词: Granular materials
; Sewage treatment
; Wastewater treatment
; Abundance
; ANAMMOX
; Bacterial abundance
; Ecological networks
; Extra-cellular polymeric substances
; Granular sludge
; High-throughput sequencing
; Up-flow anaerobic sludge blanket reactors
; Nitrogen removal
; nitrogen
; abundance estimation
; ammonium compound
; bioreactor
; denitrification
; exopolymer
; microbial activity
; nitrous oxide
; performance assessment
; polysaccharide
; sewage treatment
; sludge
; Acidobacteria
; Actinobacteria
; activated sludge
; Anaerolineaceae
; Anaerolineae
; anammox bacterium
; Article
; bacterium
; Burkholderiaceae
; Caldilineaceae
; carbon source
; Comamonadaceae
; Comamonas
; community structure
; Denitratisoma
; denitrification
; Gemmatimonadetes
; high throughput sequencing
; metabolic ratio
; microbial community
; molecular stability
; Nitrosomonadaceae
; Nitrosomonas
; Nitrospira
; nonhuman
; particle size
; Patulibacteraceae
; phylogeny
; Planctomycetes
; polymerase chain reaction
; population abundance
; priority journal
; Proteobacteria
; quantitative analysis
; retention time
; Rhodobacteraceae
; Rhodocyclaceae
; Rhodospirillaceae
; sludge treatment
; symbiosis
; waste component removal
; Bacteria (microorganisms)
英文摘要: An integrated investigation to document high anammox abundance, activity and diversity in upflow anaerobic sludge blanket (UASB) reactor treating low-strength ammonium loading sewage was performed and showed that the optimal anammox granular sludge sizes could mitigate undesirable N2O emission. The enhanced anammox bacterial abundance, activity and specific anammox rate were achieved with optimal granules sludge sizes of 0.5–0.9 mm with multiple “Jettenia”, “Brocadia”, and “Anammoxoglobus” species. The tightly-bound extracellular polymeric substance (TB-EPS) was the main EPS layer found in anammox granular sludge, in which polysaccharides play an important structural role. Over this granular sludge sizes, the anammox bacterial abundance and activity did not significantly decrease, but N2O emission significantly increased. High throughput sequencing and ecological networks demonstrated the patterns of anammox and their co-occurring bacteria, with availability N2O-producer and N2O-reducer functional genes. Incomplete denitrification and insufficient carbon source mainly contributed to N2O production in granular sludge, as supported by results of stratification analysis. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112612
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China; Shandong Provincial Key Lab of Environmental Engineering, Qingdao University of Technology, Qingdao, 266033, China; University of Chinese Academy of Sciences, Beijing, 100049, China
Recommended Citation:
Zhu G.,Wang S.,Ma B.,et al. Anammox granular sludge in low-ammonium sewage treatment: Not bigger size driving better performance[J]. Water Research,2018-01-01,142