The removal of steroid hormones from the mariculture system using seaweeds (Caulerpa lentillifera, Ulva pertusa, Gracilaria lemaneiformis, and Codium fragile) was investigated. The results illustrated that both 17β-estradiol (E₂) and 17α-ethinylestradiol (EE₂) could be removed by the seaweeds at different levels, and the Caulerpa lentillifera was the most efficient one. More than 90% of E₂ or EE₂ at concentration of 10 µg/L was removed by Caulerpa lentillifera within 12 h. Processes including initial quick biosorption, the following slow accumulation, and biodegradation might explain the removal mechanisms of E₂/EE₂ by Caulerpa lentillifera. E₂/EE₂ removal was positively related to the nutrient level and the initial concentration of steroid hormone. A significant linear relationship for E₂ and EE₂ existed between the initial pollutant concentration and the average removal rate. The highest removal kinetic constant (k) value was obtained at 30°C as 0.34 /h for E₂ and at 20°C as 0.28 /h for EE₂, demonstrating the promising application potential of Caulerpa lentillifera in the water purification of the industrialized mariculture system with relatively high water temperature. Simultaneous and efficient removal of E₂ and EE₂ by Caulerpa lentillifera was still achieved after 3 cycles in the pilot-scale experiment. The steroid hormones and nutrients in mariculture wastewater could also be simultaneously removed using Caulerpa lentillifera. These findings demonstrated that Caulerpa lentillifera was the promising seaweed for the removal of steroid hormones in mariculture systems.

研究了使用海藻（Caulerpa lentillifera、Ulva pertusa、Gracilaria lemaneiformis和Codium flexible）从海水养殖系统中去除类固醇激素。结果表明，17β-雌二醇（E ₂）和17α-炔雌醇（EE ₂）均能被海藻在不同水平上去除，其中以小扁豆（Caulerpa lentillifera）最为有效。Caulerpa lentillifera在 12 小时内去除了 90% 以上的 E ₂或浓度为 10 µg/L 的EE ₂。包括初始快速生物吸附、随后的缓慢积累和生物降解在内的过程可能解释了 E ₂的去除机制/EE ₂由Caulerpa lentillifera。E ₂ /EE ₂去除与营养水平和类固醇激素初始浓度呈正相关。E ₂和EE ₂的初始污染物浓度与平均去除率之间存在显着的线性关系。最高去除动力学常数 ( k ) 值在 30°C 下为 E ₂为 0.34 /h ，在 20°C 下为 0.28 /h 为 EE ₂，证明了小扁豆的应用潜力。在水温较高的工业化海水养殖系统的水质净化中。在中试规模实验中，经过 3 个循环后，仍然实现了Caulerpa lentillifera对 E ₂和 EE ₂的同时高效去除。使用Caulerpa lentillifera也可以同时去除海水养殖废水中的类固醇激素和营养物质。这些发现表明，Caulerpa lentillifera是一种很有前途的海藻，可用于去除海水养殖系统中的类固醇激素。