可再生能源2025，Vol.43Issue(3)：285-291,7.
紫背浮萍对养殖废水氮磷吸收及生物资源化利用前景的研究
Research on the absorption of nitrogen and phosphorus in aquaculture wastewater by Spirodela polyrhiza and the prospects for its biomass resource utilization
摘要
Abstract
This paper takes Spirodela polyrhiza as the experimental object to study the effects of the dilution multiple of aquaculture wastewater and the initial inoculation amount on the growth and crude protein accumulation of Spirodela polyrhiza,as well as the absorption and purification patterns of nitrogen and phosphorus nutrients in aquaculture wastewater by Spirodela polyrhiza.The results show that with the increase of the dilution multiple of aquaculture wastewater,the removal rates of NH4+-N,NO3--N,and PO43--P by Spirodela polyrhiza gradually increase,and the absorption and purification of NH4+-N by Spirodela polyrhiza is earlier than that of NO3--N.With the increase of the initial inoculation amount of Spirodela polyrhiza,the removal rates of PO43--P and NO3--N both increase.When the initial inoculation amounts of Spirodela polyrhiza are 50%and 75%,the removal rates of NH4+-N reach 97.6%and 94.1%,respectively.The crude protein content of Spirodela polyrhiza decreases with the increase of the dilution multiple of aquaculture wastewater.The highest growth amount and growth rate of Spirodela polyrhiza is achieved in the aquaculture wastewater diluted 20 times.Under the conditions of 20 times dilution of aquaculture wastewater and an initial inoculation amount of 75%of Spirodela polyrhiza,the annual protein yield of Spirodela polyrhiza can reach 0.91 t/hm2.关键词
紫背浮萍/养殖废水/氮磷去除率Key words
Spirodela polyrhiza/aquaculture wastewater/nitrogen-phosphorus removal efficiency分类
能源与动力引用本文复制引用
乔同雷,吕冬伟,董仁杰..紫背浮萍对养殖废水氮磷吸收及生物资源化利用前景的研究[J].可再生能源,2025,43(3):285-291,7.基金项目
利用速生水生植物生态化处理养殖废水模式研究及关键技术研发(H202408) （H202408）
烟台市校地融合发展项目(2024XDRHXMPT13). （2024XDRHXMPT13）
