title: Development of algae-bacteria granular consortia in photo-sequencing batch reactor.
abstract: The development and properties of algae-bacteria granular consortia, which cultivated with the algae (Chlorella and Scenedesmus) and aerobic granules, was investigated in this experiment. The results indicated that the granular consortia could be successfully developed by selection pressure control, and the algal biomass and extracellular polymeric substances (EPS) concentration in the consortia showed notable correlation with the operating parameters of reactor. The maximum specific removal rates of total nitrogen and phosphate were obtained from the granular consortia with the highest algal biomass, yet the correlation between the fatty acid methyl esters yield and the algal biomass in the consortia was not markedly observed. The seed algae maintained dominance in the phototroph community, whereas the cyanobacteria only occupied a small proportion (5.2-6.5%). Although the bacterial communities with different operational strategies showed significant difference, the dominated bacteria (Comamonadaceae, 18.79-36.25%) in the mature granular consortia were similar.
authors.affiliation: Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: lliu@iue.ac.cn.
authors.forename: Lin
authors.initials: L
authors.lastname: Liu
authors.affiliation: Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
authors.forename: Hongyong
authors.initials: H
authors.lastname: Fan
authors.affiliation: Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
authors.forename: Yuhong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
authors.forename: Chaoxiang
authors.initials: C
authors.lastname: Liu
authors.affiliation: Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Huang
mesh_terms: D061249:Batch Cell Culture Techniques / Q000295:instrumentation*; D044822:Biodiversity; D018533:Biomass; D019149:Bioreactors / Q000382:microbiology*; D002708:Chlorella / Q000378:metabolism*; D002734:Chlorophyll / Q000032:analysis; D004952:Esters / Q000032:analysis; D059013:Microbial Consortia; D009584:Nitrogen / Q000302:isolation & purification; D010758:Phosphorus / Q000302:isolation & purification; D058433:Photobioreactors / Q000382:microbiology*; D044444:Scenedesmus / Q000378:metabolism*; D012722:Sewage / Q000382:microbiology*
chemical_list: D004952:Esters; D012722:Sewage; D002734:Chlorophyll; D010758:Phosphorus; D009584:Nitrogen
keywords: Aerobic granules; Algae; Biomass energy; Wastewater