How to effectively bioremediate aquacultural wastewater using microbes is an urgent issue for the application of aquaculture beneficial microorganisms. Purple non-sulfur bacteria (PNSB) are beneficial in preventing related pollution in aquaculture applications. An autochthonous PNSB Rhodobacter sphaeroides was employed in this study to explore an effective bioremediation strategy of aquacultural wastewater. The test bacterium showed high performance in the removal of ammonium (97.50% ± 0.78% of 42 mg L^-1 NH₄⁺-N) and phosphate (93.24% ± 0.71% of 50 mg L^-1 PO₄^3--P) in the synthetic wastewater, which are the two crucial indicators of the aquacultural wastewater bioremediation. The study also unveiled that the imbalanced ratio of nutrients in water was the principal reason for limiting the efficient bioremediation of shrimp-culture wastewater. Therefore, an effective microbial bioremediation strategy was proposed by comprehensively considering bacterial pollutant metabolism kinetics constants such as specific consumption yields of chemical oxygen demand (COD)/phosphorous and nitrogen/phosphorous. Finally, COD, total nitrogen (TN), total phosphorus (TP), and ammonium (NH₄⁺-N) in the wastewater were examined, and the results showed that they all decreased to the acceptable values. In conclusion, this study suggested a novel method for improved bioremediation efficiency of aquacultural wastewater, and the findings revealed that this strategy is promising due to its characteristics to be used in various aquaculture wastewater types.

如何有效利用微生物对水产养殖废水进行生物修复是应用水产养殖有益微生物的当务之急。紫色非硫细菌（PNSB）有助于防止水产养殖应用中的相关污染。在这项研究中，使用了一种自生的PNSB球形球形红细菌来探索一种有效的水产养殖废水生物修复策略。该测试细菌显示出除去铵的高性能（97.50％±42毫克的L为0.78％^-1 NH ₄ ⁺ -N）和磷酸（93.24％±50毫克的L 0.71％^-1 PO ₄ ^3--P），这是水产养殖废水生物修复的两个关键指标。该研究还揭示，水中养分比例失衡是限制虾类养殖废水有效生物修复的主要原因。因此，通过综合考虑细菌污染物代谢动力学常数，例如化学需氧量（COD）/磷和氮/磷的比消耗量，提出了一种有效的微生物生物修复策略。最后是COD，总氮（TN），总磷（TP）和铵（NH ₄ ⁺-N）在废水中进行了检查，结果表明它们都降低到了可接受的值。总之，这项研究提出了一种提高水产养殖废水生物修复效率的新方法，研究结果表明，该策略因其可用于各种水产养殖废水类型的特性而很有希望。