海洋科学2025，Vol.49Issue(9)：28-37,10.DOI:10.11759/hykx20250215001
大型海藻-硝化细菌共培养处理养殖尾水的研究
Study on the treatment of aquaculture effluents using coupled cultivation of macroalgae and nitrifying bacteria
摘要
Abstract
The efficient removal of nitrate and phosphate is challenging for the treatment of eutrophicated aquacul-ture effluents.Existing studies have indicated that the combination of algae and bacteria for effluent treatment can enhance the efficiency of biological processes;however,microalgae are predominantly used.In this study,we con-structed algal-bacterial aggregates using the asexual strain of the macroalga Ulva pertusa and nitrifying bacteria,and these aggregates were then applied to treat simulated aquaculture effluents.The results revealed that the al-gal-bacterial aggregates significantly outperformed the single-bacterial group for the removal of nitrogen and phosphorus pollutants,with removal rates of NH4⁺-N and PO43⁻-P reaching 99.2%and 98.2%,respectively.Fur-thermore,they exhibited superior removal rates compared to the single-algal group.Compared with the single-algal group,the contents of chl a,chl b,and carotenoids in U.pertusa within the algal-bacterial aggregates increased by 65.4%,37.8%,and 56.7%,respectively.In addition,the growth capacity and photosynthetic activity of U.pertusa were further enhanced.These findings indicate the existence of a mutualistic mechanism between macroalgae and nitrifying bacteria.Moreover,their synergistic action improved the removal efficiency of inorganic nitrogen and phosphorus in aquaculture effluents and increased the dissolved oxygen in the water.Overall,this is a highly effi-cient and feasible method for the treatment of aquaculture effluents.关键词
孔石莼(Ulva pertusa)无性系/藻-菌共生/养殖尾水/固定化技术Key words
Ulva pertusa asexual strain/algae-bacteria symbiosis/aquaculture effluent/immobilization technology分类
资源环境引用本文复制引用
崔晓迪,董逸,刘汇芹,李可轩,王金霞..大型海藻-硝化细菌共培养处理养殖尾水的研究[J].海洋科学,2025,49(9):28-37,10.基金项目
福建省STS计划配套项目(2023T3056)Fujian Province STS Plan Supporting Project,No.2023T3056 （2023T3056）
