铀是重要的核能工业基础原料，但我国是贫铀国家，铀资源的获取主要依赖进口。海水中的铀资源总量是陆地的1000倍，开展海水提铀可满足我国长期的铀资源需求。然而，海洋微生物污损严重的危害着海水提铀技术的应用，可导致海水提铀性能下降30%以上，甚至导致海水提铀失败。故而，开发抗微生物污损海水提铀技术意义重大。由于缺乏对海水提铀过程微生物污损动态规律及主要污损微生物类群的认知，现有抗海洋微生物污损提铀技术不能有效地解决长期海水提铀过程中微生物污损的问题。本项目拟以偕胺肟基海水提铀材料为基础，采用微生物学、海洋科学、材料科学等相关研究手段，研究偕胺肟基提铀吸附剂长期海水提铀过程中的微生物污损动态及主要的污损微生物类群，针对性设计抗微生物污损的海水提铀吸附剂，并评估其海水提铀及抗微生物污损性能。该项目的开展可获得新型高效抗微生物污损海水提铀吸附剂，并可为海洋铀资源的发掘提供理论指导。

Uranium is the fundamental material of nuclear energy industry. However, our country is lack of uranium and most of the uranium resource used in our country is depended on import from the other countries. The ocean reserves 4.5 billion tons of uranium and amounts to a nearly inexhaustible uranium supply. Biofouling in ocean is one of the most severe factors that hazard uranium extraction, can lead to the lost of uranium recovery capacity of uranium adsorbents by at least 30%, and even cause the failure of uranium extraction. Therefore, development of uranium adsorbents with biofouling resistance is highly urgent. However, due to the lack of knowledge on the majority sea contamination microorganisms onto uranium adsorbents and the biofouling mechanism of marine microorganism to the uranium adsorbents is still unknown, the currently available anti-biofouling uranium adsorbents could not resolve the contamination of marine microorganism. In this study, by using the fully amidoximated fiber uranium adsorbents, we intend to analyze the fouling dynamic of microorganism onto the adsorbents, identify the major fouling microorganism, design and construct adsorbent with specific resistance to the major fouling microorganism, and evaluate the uranium recovery capacity and anti-biofouling capacity of the adsorbent. The completion of the project will obtain anti-biofouling uranium adsorbent and provide instruction for the construction of new uranium adsorbent with resistance to marine microorganism.