运移式滤器构制及其生物膜培养期间硝化性能  

Construction of simple movable bio-filters and their nitrification performance during biofilm development

作　　者：戴习林[1] 蔡青霖 臧维玲[1] 杨明 丁福江 朱其建[1] 

机构地区：[1]上海海洋大学水产与生命学院,上海201306 [2]上海申漕特种水产开发公司,上海201516

出　　处：《上海海洋大学学报》2017年第5期726-732,共7页Journal of Shanghai Ocean University

基　　金：上海市虾类产业技术体系建设项目(沪农科产字[2014]第5号)

摘　　要：探讨了运移式简易滤器构制、亲虾池循环水培养生物膜可行性及其硝化性能。实验以常用滤料(沸石+纤维球+生化环=30.9 kg)与塑料桶(70 L)制成两个相同简易生物滤器Ⅰ、Ⅱ,滤器置于手推车可运移于车间各处净化池水。以亲虾越冬池(4 m^3)循环水(0.231、0.138 m^3/h流量)可简便培养滤器生物膜与有效净化虾池水质。结果表明:约经17 d以循环虾池水培养生物膜获成熟,并能有效降低池水TAN、NO_2^--N浓度;实验37 d,两滤器对TAN平均去除率分别为40.23%与45.3%,对NO_2^--N为58.4%与65.1%;两滤器TAN平均去除速率分别为0.138、0.081 mg/(m^2·d),NO_2^--N平均去除速率为0.053、0.035 mg/(m^2·d)。滤器Ⅰ与Ⅱ均具较强处理TAN、NO_2^--N的硝化能力,且无显著差异(P>0.05)。This paper describes the construction of the simple moveable bio-filters. Additionally, the feasibility of biofilm developed through using tank water for raising prawn broodstock and its nitrification performance were evaluated in a recirculating system stocked with Macrobrachium rosenbergii. Common media such as zeolite,fiber ball and biochemical ring（ Total weight 30. 9 kg） were put into plastic barrel（ Total volume 70 L） to make a simple bio-filter. The two same bio-filters named Ⅰ and Ⅱ were used in current research that served as the recirculation filter. It should be noted that the bio-filter can be placed in a trolly transporting to any tank in aquaculture workshop to treat water. Two culture tanks were used as the main system in which Macrobrachium rosenbergii were grown as a source of waste nutrients. Tank water flowed out of overwintering ponds（ 4 m^3） for broodstock and was mechanically filtered through the simple bio-filters Ⅰ（ 0. 231 m^3/h） and Ⅱ（ 0. 138 m^3/h） by pumps. The results showed that the biofilm can be developed after about 17 days through using tank water for raising prawn broodstock. Concentrations of TAN and NO2^--N can be effectively reduced by the simple moveable bio-filters. Resulting average removal rates were 40. 23%,45. 3% in TAN and 58. 4%,65. 1% in NO2^--N in 37 d by the two filters Ⅰ and Ⅱ. Average removal rates were 0. 138 mg,0. 081 mg TAN/（ m^2·d）,while 0. 053 mg,0. 035 mg NO2^--N/（ m^2·d） by filtersⅠ andⅡ. The results of this study showed that filters Ⅰ and Ⅱ have high nitrification efficiency in removing TAN and NO2^--N,and no significant differences were observed between Ⅰ and Ⅱ（ P〈0. 05）.

关 键 词：亲虾越冬池 运移式生物滤器 滤料 生物膜 硝化作用 

分 类 号：S962.7[农业科学—水产养殖]