Microalgal bacterial flocs can be a promising approach for microalgae harvesting and wastewater treatment. The present study provides an insight on the bioflocs formation to enhance harvesting of Chlorella vulgaris and the removal of nutrients from seafood wastewater effluent. The results showed that the untreated seafood wastewater was the optimal culture medium for the cultivation and bioflocculation of C. vulgaris, with the flocculating activity of 92.0 ± 6.0%, total suspended solids removal of 93.0 ± 5.5%, and nutrient removal of 88.0 ± 2.2%. The bioflocs collected under this optimal condition contained dry matter of 107.2 ± 5.6 g·L⁻¹ and chlorophyll content of 25.5 ± 0.2 mg·L⁻¹. The results were promising when compared to those obtained from the auto-flocculation process that induced by the addition of calcium chloride and pH adjustment. Additionally, bacteria present in the wastewater aided to promote the formation of bioflocculation process.

微藻细菌絮凝物可能是用于微藻收获和废水处理的有前途的方法。本研究提供了有关生物絮凝物形成的见解，以增强寻常小球藻的收成和从海鲜废水中去除营养物质。结果表明，未经处理的海产品废水是寻常藻的培养和生物絮凝的最佳培养基，絮凝活性为92.0±6.0％，总悬浮物去除率为93.0±5.5％，养分去除率为88.0±2.2 ％。在此最佳条件下收集的生物絮凝物的干物质为107.2±5.6 g·L ^-1，叶绿素含量为25.5±0.2 mg·L ^-1。与通过添加氯化钙和调节pH诱导的自絮凝工艺获得的结果相比，结果令人鼓舞。另外，废水中存在的细菌有助于促进生物絮凝过程的形成。