循环水养殖系统生物挂膜的消氨效果及影响因素分析  

Ammonia removal by bio-film and its impact factors in recirculation aquaculture systems

作　　者：傅雪军[1,2] 马绍赛[1] 曲克明[1] 周勇[1,2] 徐勇[1] 

机构地区：[1]农业部海洋渔业资源可持续利用重点开放实验室,中国水产科学研究院黄海水产研究所,青岛266071 [2]上海海洋大学水产与生命学院,201306

出　　处：《渔业科学进展》2010年第1期95-99,共5页Progress in Fishery Sciences

基　　金：国家科技支撑计划项目(2006BAD09A03);国家863计划项目(2006AA100305);科技部农业科技成果转化资金项目(2007GB23260387)共同资助

摘　　要：针对工厂化循环水养殖系统,利用海水中的自然净化微生物挂膜,挂膜成功后,形成了很好的硝化作用,进行不同水温、进水氨氮浓度和水力停留时间(HRT)影响因素实验。结果表明,相同的进水氨氮浓度,随着水温的升高,不同水温之间氨氮浓度变化差异显著(P<0.05)。在28℃水温时,经过生物膜120 h的净化处理,进水氨氮浓度降低到最低;随着进水氨氮浓度和HRT的增大,氨氮去除率及特殊去除率也不断的增大,但在同一进水氨氮浓度下,氨氮特殊去除率随着水力停留时间的延长反而降低。Bio-film was successfully formed by making use of the natural purifying microbe in the sea for the industrial recirculation aquaculture systems. The nitrification impact factors, including water temperatures, influent ammonia-nitrogen concentrations and hydraulic retention time （HRT） were also explored . The results showed that at the same influent ammonia-nitro- gen concentration and HRT, the ammonia-nitrogen concentrations changed significantly at dif- ferent water temperatures （P〈0.05）. When the water temperature was 28℃, after purified by bio-film for 120 hours, the influent ammonia-nitrogen concentration dropped to the lowest concentration. The ammonia-nitrogen removal rate and the specific ammonia removal rate were gradually increased as the influent ammonia-nitrogen concentration and HRT increased. However, at the same ammonia-nitrogen concentration, the specific ammonia-nitrogen removal rate decreased as HRT was prolonged.

关 键 词：循环水养殖系统 生物滤池 挂膜 影响因素 水力停留时间 

分 类 号：X171.4[环境科学与工程—环境科学]