State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
Bioresour Technol. 2015 Jun;185:40-8. doi: 10.1016/j.biortech.2015.02.030. Epub 2015 Feb 26.
Microalgae cultivation using wastewater might be a suitable approach to support sustainable large-scale biomass production. Its compelling characteristics included the recycling of nutrients and water resources, reducing carbon emissions and harvesting available biomass. In outdoor batch and continuous cultures, Chlorella pyrenoidosa completely adapted to anaerobic digested starch processing wastewater and was the dominant microorganism in the photobioreactor. However, seasonal changes of environmental conditions significantly influenced biomass growth and lipid production. The long-term outdoor operation demonstrated that the biomass concentration and productivity in continuous operations at different hydraulic retention times (HRTs) can be successfully predicted using the kinetic growth parameters obtained from the batch culture. A moderate HRT (4days) in the summer provided the best microalgae and lipid production and achieved relatively high biomass concentrations of 1.29-1.62g/L, biomass productivities of 342.6±12.8mg/L/d and lipids productivities of 43.37±7.43mg/L/d.
利用废水培养微藻可能是支持可持续大规模生物质生产的一种合适方法。其引人注目的特点包括回收营养物质和水资源、减少碳排放以及收获可用的生物质。在户外分批和连续培养中，蛋白核小球藻完全适应厌氧消化淀粉加工废水，并且是光生物反应器中的优势微生物。然而，环境条件的季节性变化会显著影响生物质的生长和脂质的生产。长期的户外运行表明，在不同水力停留时间（HRT）下的连续运行中，可以使用从分批培养中获得的动力学生长参数成功预测生物质浓度和生产力。夏季采用适中的 HRT（4 天）可以实现最佳的微藻和脂质生产，并获得相对较高的生物质浓度 1.29-1.62g/L、生物质生产力 342.6±12.8mg/L/d 和脂质生产力 43.37±7.43mg/L/d。
