(a)Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand.
(a)Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand.
Bioresour Technol. 2014 Aug;165:129-36. doi: 10.1016/j.biortech.2014.03.119. Epub 2014 Apr 1.
A photo-bioreactor with internal overflow recirculation was applied to treat real fermented starch wastewater and convert it to photosynthetic biomass for further utilization. The photo-bioreactor was operated at a hydraulic retention time of 10days by circulating mixed liquor through overflow pipes and penetrating light through infrared transmitting filter. During the operation of 154days, the average BOD and COD removals were 95% and 88%, respectively. Majority of photosynthetic bacteria was found attached on pipes as biofilm contributed to 82% of total biomass production. Photosynthetic biomass yield was 0.51g dried solid/g BOD removed and crude protein content of 0.58g/g dried solid. Rhodopseudomonas palustris was found in the photosynthetic system as the predominant bacterial group by denaturing gradient gel electrophoretic analysis (DGGE) and 16S rDNA sequencing method.
采用具有内部溢流再循环的光生物反应器处理实际发酵淀粉废水，并将其转化为光合生物质以进一步利用。该光生物反应器通过溢流管循环混合液并透过红外透射滤光片透光，水力停留时间为 10 天。在 154 天的运行过程中，BOD 和 COD 的平均去除率分别为 95%和 88%。大多数光合细菌附着在管道上形成生物膜，占总生物质产量的 82%。光合生物质产率为 0.51g 干固体/g BOD 去除，粗蛋白含量为 0.58g/g 干固体。通过变性梯度凝胶电泳分析（DGGE）和 16S rDNA 测序方法，发现沼泽红假单胞菌是光合系统中的主要细菌群。
