3种滤料的生物挂膜及硝化反硝化性能  

Bio-film cultivation and nitrification-denitrification performance of three kinds of fillings

作　　者：王威 王玮 齐继光 王云忠 杨翠华 曲克明[2] 孟翔 

机构地区：[1]青岛海洋科技馆,青岛266003 [2]中国水产科学研究院黄海水产研究所,青岛266071

出　　处：《应用与环境生物学报》2017年第2期301-305,共5页Chinese Journal of Applied and Environmental Biology

基　　金：国家科技支撑计划项目(2011BAD13B04)资助~~

摘　　要：采用优势菌挂膜法对陶环、生物球和"细菌屋"3种滤料进行淡水生物膜培养,并以3种滤料生物滤器为基础的维生系统进行观赏鱼朱文锦亚成体的饲养实验研究.结果显示:在初始总氨氮浓度为5 mg/L、总有机碳浓度为20mg/L且滤料总氨氮吸附饱和的情况下,3种滤料硝化反硝化完全建立时间分别为30 d、33 d和28 d;在总氨氮浓度为2mg/L的条件下,挂膜成熟后3种滤料的24 h总氨氮去除率分别为92.5%、97.5%和90%,反冲洗后的24 h总氨氮去除率分别为87.5%、85%和85%,陶环滤料和"细菌屋"滤料具有较好的抗冲击负荷能力.3组系统饲养朱文锦鱼均有较高的成活率,其中"细菌屋"滤料维生系统的朱文锦40 d饲养效果最佳.因此,在观赏鱼维生系统的滤料选择使用方面要综合考虑多方面的因素以达到上佳的过滤和饲养效果.In this study, we choose three kinds of fillings （pottery loop, biological ball, and “bacteria house”）, to cultivate a bio-film in fresh water. The life support system （LSS） was built based on three fillings’ bio-filters, and a koi （Cyprinus carpiohaematopterus） sub-adult breeding experiment was performed. The results showed that an initial total ammonia nitrogen （TAN） concentration of 5 mg/L, total organic carbon concentration of 20 mg/L and saturated adsorptoon of the fillings, resulted in bio-film maturation after 30, 33, and 28 d, respectively. The 24 h TAN removal rates of the three bio-filter groups were 92.5%, 97.5%, and 90%, respectively, and after backwashing, the results decreased to 87.5%, 85%, and 85%, respectively. The pottery loop and “bacteria house” fillings could resist impact load. High fish survival rates were obtained for all groups, and the greatest breeding effect occurred in the “bacteria house” group. Moreover, we should consider several factors when fillings are selected for use in the LSS for breeding aquarium fish, in order for good filtering and breeding to be achieved.

关 键 词：生物滤料 生物挂膜 维生系统 硝化反硝化 

分 类 号：S969.38[农业科学—水产养殖]