光合细菌固定化及其对铜绿微囊藻的抑制

为探讨光合细菌固定化后对铜绿微囊藻的抑制作用，比较了光合细菌的5种不同固定化方法及其特性，确定了最佳的固定化方法；在实验室条件下进行菌藻共同培养，通过试验研究了固定化后的光合细菌与游离光合细菌对铜绿微囊藻生长的影响差异并确定了固定化光合细菌的最佳投加量。结果表明：采用沸石、碳酸钙和海藻酸钠混合包埋光合细菌的固定化方法最佳；固定化光合细菌对铜绿微囊藻抑制作用显著，为83.55%，而相同量的游离光合细菌的抑制作用只有26.81%；最佳固定化光合细菌投加量为36 g / L。

Inhibiting effect of immobilized photosynthetic bacteria on Microcystis aeruginosa

The inhibiting effects of immobilized photosynthetic bacteria on Microcystis aeruginosa were investigated in this study. First, through comparison of five immobilization methods and their features, the optimal immobilization method was determined. Then, photosynthetic bacteria and Microcystis aeruginosa were co-cultured through laboratory experiments. After the experiments, the impacts of immobilized photosynthetic bacteria and mobile photosynthetic bacteria on the growth of Microcystis aeruginosa were studied, and the optimal dosage of immobilized photosynthetic bacteria was determined. The study results show that the optimal method for immobilization of photosynthetic bacteria was to mix zeolites, calcium carbonate, and sodium alginate. The immobilized photosynthetic bacteria had a significant inhibiting effect on Microcystis aeruginosa, with an inhibition rate of 83.55%, while the mobile photosynthetic bacteria, at the same amount, had an inhibition rate of only 26.81%. The optimal dosage of immobilized photosynthetic bacteria was 36 g/ L.