Research on the development and properties of aerobic sludge-microalgae granular system
LIU Lin1,2, YE Jia-qi1, LIU Yu-hong1,2, HUANG Xu1, LIU Chao-xiang1
1. Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China
The effect of settling time on the development and properties of algae-bacteria granular consortia,which were cultivated with aerobic granules as biological carrier,and Chlorella and Scenedesmus as seed microalgae,were investigated in this research.The results indicated that the algae-bacteria granular consortia could be successfully developed based on the aerobic granules and targeted microalgae.Although settling time could affect the start-up duration of granular system,it was not the crucial factor for the culture of granular consortia.In terms of properties of the mature granular consortia,the settling time could significantly affect the settleability,nitrogen removal ability,granular size and biodiesel yield of the consortia granules (P<0.05),while the obvious response of zeta potential,phosphate removal rate and the dominate compositions of fatty acid methyl esters in the biodiesel to the settling time was not observed in this experiment (P>0.05).The relative abundance of cyanobacteria and eukaryotic algae in all granules were about 5% and 95%,respectively.The targeted microalgae maintained dominance in the eukaryotic algal community (relative abundance>98%),and the comparative advantage of biomass between Chlorella and Scenedesmus in the granules was showed under the different condition of settling time in systems.
刘琳, 叶嘉琦, 刘玉洪, 黄栩, 刘超翔. 好氧污泥-微藻耦合颗粒的培养及特性研究[J]. 中国环境科学, 2017, 37(7): 2536-2541.
LIU Lin, YE Jia-qi, LIU Yu-hong, HUANG Xu, LIU Chao-xiang. Research on the development and properties of aerobic sludge-microalgae granular system. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(7): 2536-2541.
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