藻液浓缩方法的改进与浓缩过程水体性质特征  

THE IMPROVEMENT OF ALGAE CONCENTRATION METHOD AND THE WATER CHARACTERISTICS DURING THE ENRICHMENT PROCESS

作　　者：尹涛[1] 丁爱中[1] 孙寓姣[1] 

机构地区：[1]北京师范大学水科学研究院教育部水沙科学重点实验室,北京100875

出　　处：《环境工程》2015年第10期21-25,共5页Environmental Engineering

基　　金：北京市委;市政府重点工作及区县政府应急预启动项目(Z10110605540000)

摘　　要：为制作生物燃油提出了一种藻液浓缩方法。对湖泊水华过程生成的藻液进行浓缩研究,浓缩过程表明：在温度为21.5~22.9℃时,沉降装置上清液的理化性质为：溶解氧浓度为19.91~4.39 mg/L,p H为9.98~10.54,电导率为1 321~1 459μS/cm,氧化还原电位为-23.6~113.1 m V,浓缩倍数为26.58~28.95倍。藻液初始浓度为0.94 g/L,沉降后的高浓度藻液干重均值为25.47 g/L。结果显示：沉降系统能长时间保持稳定,适宜藻液长期浓缩。A method for concentrating algae solution was introduced for the production of biofuels. Algae solution in the water bloom course was concentrated. Enrichment process indicates that： When the temperature was in the range of 21. 5 ~ 22. 9 ℃,the dissolved oxygen in the supernatant was in the range of 19. 91 ~ 4. 39 mg / L; p H was in the range of 9. 98 ~ 10. 54; the conductivity was in the range of 1 321 ~ 1 459 μS / cm; the oxidation-reduction potential was in the range of- 23. 6 ~113. 1 m V; the concentration mutiple was in the range of 26. 58 ~ 28. 95. When the initial concentration of algae was 0. 94 g /L,the mean dry weight of algae solution was 25. 47 g / L after concentration. The conclusion was that the settlement system ran stable for a long time and was suitable for the concentration of algae.

关 键 词：水华 生物燃油 浓缩 光反应器 

分 类 号：X52[环境科学与工程—环境工程]