Removal of steroid hormones from mariculture system using seaweed Caulerpa lentillifera  

作　　者：Jian Lu Cui Zhang Jun Wu 

机构地区：[1]CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation,Yantai Institute of Coastal Zone Research(YIC),Chinese Academy of Sciences(CAS),Shandong Key Laboratory of Coastal Environmental Processes,YICCAS,Yantai 264003,China [2]Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China [3]Yantai Research Institute and Graduate School,Harbin Engineering University,Yantai 265501,China

出　　处：《Frontiers of Environmental Science & Engineering》2022年第2期1-11,共11页环境科学与工程前沿（英文）

基　　金：This work was financially supported by the National.Natural Science Foundlation of China(Grant No.41671319);Taishan Scholars Program of Shandong Province(sqn201812116);Science and.Technology Service Network Initative of the Chinese Academy of Sciences(KFJ-STS-QYZX-114);Shandong Provincial Natural Science Foundlatio(No.ZR2020QD131);Two-Hundred Talents Plan of Yantai(No.Y739011021);Yantai Science and Technology Development Project(2020MSGY062).

摘　　要：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(E_(2))and 17α-ethinylestradiol(EE_(2))could be removed by the seaweeds at different levels,and the Caulerpa lentillifera was the most efficient one.More than 90%of E_(2) or EE_(2) at concentration of 10μg/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 E_(2)/EE_(2) by Caulerpa lentillifera.E_(2)/EE_(2) removal was positively related to the nutrient level and the initial concentration of steroid hormone.A significant linear relationship for E_(2) and EE_(2) existed between the initial pollutant concentration and the average removal rate.The highest removal kinetic constant(k)value was obtained at 30℃as 0.34/h for E_(2) and at 20℃as 0.28/h for EE_(2),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 E_(2) and EE_(2) 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.

关 键 词：Phycoremediation Steroid hormones SEAWEED MARICULTURE Caulerpa lentillifera 

分 类 号：X52[环境科学与工程—环境工程]