College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315211, China.
Institute of Marine Biotechnology and Bioresource Utilization, College of Oceanography, Hehai University, Nanjing, Jiangsu 213022, China.
Bioresour Technol. 2022 Apr;349:126888. doi: 10.1016/j.biortech.2022.126888. Epub 2022 Feb 21.
Furfural wastewater (FWW) treatment is important in modern chemical production. However, traditional wastewater treatment methods are inappropriate for the treatment of FWW. In this work, Chlorella pyrenoidosa was employed to study the growth and pollutants removal with both heterotrophic and mixotrophic cultures. The results show that the biomass and removal efficiency for COD and TN were the highest under 10-fold dilution. However, TP removal were inconsistent when the algae were cultivated in both mixotrophic and heterotrophic modes. Compared to high nitrogen (0.75 g/L NaNO), the algal cells grew faster when adding 0.25 g/L NaNO to the FWW, whether in mixotrophic or heterotrophic conditions. The total lipid content in heterotrophic conditions was 18.53%, which was higher than the values in mixotrophy when the concentration of NaNO was 0.75 g/L. Different carbon assimilation mechanisms of the algal cells result in a discrepancy in cell growth and pollutant removal, under different culture modes.
糠醛废水（FWW）处理在现代化学生产中很重要。然而，传统的废水处理方法不适合处理 FWW。在这项工作中，使用蛋白核小球藻研究了异养和混合营养培养条件下的生长和污染物去除。结果表明，在 10 倍稀释条件下，生物量和 COD、TN 的去除效率最高。然而，当藻类在混合营养和异养模式下培养时，TP 的去除效果不一致。与高氮（0.75g/L NaNO）相比，无论在混合营养还是异养条件下，向 FWW 中添加 0.25g/L NaNO 都能使藻类细胞生长更快。在 NaNO 浓度为 0.75g/L 时，异养条件下的总脂含量为 18.53%，高于混合营养条件下的值。不同的碳同化机制导致藻类细胞在不同的培养模式下表现出不同的细胞生长和污染物去除效果。
