Microalgae-based technology is an emerging strategy for the simultaneous purification of nutrients in biogas slurry and CO₂ in biogas. To evaluate effects of synthetic analogue of strigolactone (GR24) concentration on removal efficiency, mono-cultivation of microalgae and co-cultivation of algae with fungus or activated sludge were performed in a photobioreactor. The GR24 concentration of 10⁻⁹ M was contributed to the optimum growth characteristics, photosynthetic performance and purification effects in the co-cultivation system of Chlorella vulgaris with activated sludge. The optimal growth rate and mean daily productivity for Chlorella vulgaris were 0.419 ± 0.04 d⁻¹ and 0.342 ± 0.029 g L⁻¹ d⁻¹, respectively. The photosynthetic performance parameters F_v/F_m, PI_ABS, Ψ_O, and Φ_EO were 0.89 ± 0.08, 6.89 ± 0.62, 0.97 ± 0.09, and 0.69 ± 0.06, respectively, indicating that GR24 with a concentration of 10⁻⁹ M was more helpful for photosynthesis of microalgae. Moreover, the maximum removal rate of chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP) and CO₂ were obtained by the induction of 10⁻⁹ M of GR24, which were 77.33 ± 7.25%, 78.86 ± 7.51%, 78.12 ± 7.57% and 69.33 ± 6.86%, respectively. This research therefore provides an effective strategy for wastewater bioremediation and high-quality biogas energy acquisition.

基于微藻的技术是一种同时净化沼液中养分和沼气中CO ₂的新兴策略。为了评估松香酸内酯（GR24）浓度的合成类似物对去除效率的影响，在光生物反应器中进行了微藻类的单培养以及藻类与真菌或活性污泥的共培养。10 ^-9  M的GR24浓度有助于小球藻与活性污泥共培养系统中的最佳生长特性，光合性能和纯化效果。小球藻的最佳生长速率和日平均生产力分别为0.419±0.04 d ^-1和0.342±0.029 g L ^-1d ^-1。光合性能参数˚F _v / F_米，PI _ABS，Ψ _Ó，Φ _EO分别为0.89±0.08，6.89±0.62，0.97±0.09，和0.69±0.06，这表明GR24为10的浓度^-9 中号对微藻的光合作用更有帮助。此外，通过诱导10 ^-9获得了最大化学需氧量（COD），总氮（TN），总磷（TP）和CO _2的去除率。 GR24的M分别为77.33±7.25％，78.86±7.51％，78.12±7.57％和69.33±6.86％。因此，这项研究为废水生物修复和高质量沼气能源获取提供了有效的策略。