Research Institute of Environmental Sciences, College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.
School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450001, China.
Bioresour Technol. 2017 Nov;243:905-913. doi: 10.1016/j.biortech.2017.07.041. Epub 2017 Jul 8.
A symbiotic microalgal-bacterial system may be an optional technology for wastewater treatment. In this study, co-immobilized of a bacterium isolated from a municipal wastewater treatment plant (Pseudomonas putida) and a microalgae Chlorella vulgaris was used in the study of cell growth and nutrient removal during wastewater treatment under batch and continuous culture conditions. Under batch culture conditions, co-immobilization treatment significantly increased the cell density of C. vulgaris and P. putida compared with other treatments. The co-immobilized treatment also showed higher removal of ammonium, phosphate and COD than any single treatment, indicating that the nutrient uptake capability of C. vulgaris and P. Putida was mutually enhanced mutually. When tested in continuous mode, the treatment with a hydraulic retention time of 24h at the organic load rate of 1159.2mgCODLd was most appropriate for wastewater treatment.
共生微藻-细菌系统可能是一种可选的废水处理技术。在这项研究中，将一株从城市污水处理厂（铜绿假单胞菌）中分离得到的细菌与小球藻（Chlorella vulgaris）共固定化，研究了在分批和连续培养条件下废水处理过程中的细胞生长和营养物质去除情况。在分批培养条件下，与其他处理相比，共固定化处理显著提高了小球藻和铜绿假单胞菌的细胞密度。共固定化处理对氨氮、磷酸盐和 COD 的去除率也高于任何单一处理，表明小球藻和铜绿假单胞菌的养分吸收能力相互增强。在连续模式下进行测试时，有机负荷率为 1159.2mgCODLd，水力停留时间为 24h 的处理最适合废水处理。
