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[目的]明确固定化藻类技术应用于净化海水养殖废水的可行性。[方法]采用海藻酸钙凝胶包埋固定的方法,将培养至对数末期的普通小球藻进行固定,制备3、4、5 mm不同粒径的固定化藻球,比较悬浮藻与不同粒径固定化藻球对海水养殖废水中氨氮和无机磷的去除率及微藻的生长特性。并选择直径为4 mm的藻球、空白胶球、悬浮藻液分别按10%和15%的填充率投放入海水养殖废水中,研究不同填充率条件下藻球对海水养殖废水中氨氮和无机磷的净化效果。[结果]4 mm固定化藻球对海水养殖废水中氨氮、无机磷的去除率较高,填充率为15%条件下去除效果更佳,但藻细胞生长被延缓。[结论]该研究可为固定化小球藻处理海水养殖废水的工厂化应用提供科学依据。
[Objective] The research aimed to clarify the feasibility of using immobilized algae technology to purify mariculture wastewater. [Method] Immobilized algae pellets with different particle sizes of 3,4 and 5 mm were prepared by immobilizing algae - Removal of Ammonia Nitrogen and Inorganic Phosphorus from Seaweed Wastewater with Immobilized Algae Particles and the Growth Characteristics of Microalgae. The algae spheres with diameter of 4 mm, the blank gelatin balls and the suspension algae liquid were respectively put into the mariculture wastewater at 10% and 15% filling rates. The effects of algae spheres on the ammonia nitrogen and inorganic Phosphorus purification effect. [Result] The removal rate of ammonia nitrogen and inorganic phosphorus in the mariculture wastewater was higher with 4 mm immobilized algal pellets. The removal efficiency was better under the filling rate of 15%, but the growth of algal cells was delayed. [Conclusion] This study could provide a scientific basis for the industrialized application of immobilized chlorella in the treatment of mariculture wastewater.