可再生能源2012，Vol.30Issue(6)：93-96,4.
以市政污水为底物的微藻油脂积累和碳流分析
Microalgae lipid accumulation and carbon flux analysis based on municipal wastewater used as medium
摘要
Abstract
The commercial production of microalgae biodiesel was hindered by the higher cost of algae cultivation. In this study, municipal wastewater was used to cultivate Chlorella vulgaris under hydraulic retention time (HRT) 24 h, 48 h, 96 h and batch cultivation. The ratio of C.vulgaris in total biomass was enhanced along with the increase of HRT. Furthermore, cell density and lipid content also increased from 0.088 g/L and 8.4% under HRT 24 h to 0.164 g/L and 14.3% under batch cultivation, respectively. The treatment of wastewater was not influenced by HRT significantly. The removal efficiency of COD and TP was 66.1%~7I.1% and 37.6%~51.1%, respectively. However, TN removal efficiency was only 5.9%~11.2%. The carbon flux analysis of batch cultivation showed that 71.1% of organic carbon in wastewater was used by microalgae. Furthermore, 94.6% of used organic carbon was converted into algae biomass, and others into C02. The transfer ratio of wastewater organic carbon(COD) to microalgae lipid was 11.6 mg/(mg·L).关键词
市政污水/微藻油脂/Chlorella vulgarisKey words
municipal wastewater/ microalgae lipid/ Chlorella vulgaris分类
能源科技引用本文复制引用
李超,冯玉杰,张大伟,初晓婉..以市政污水为底物的微藻油脂积累和碳流分析[J].可再生能源,2012,30(6):93-96,4.基金项目
国家科技支撑计划(2011BAD14B03). （2011BAD14B03）
