封闭循环水养殖系统和流水式养殖系统水质比较.docVIP

封闭循环水养殖系统与流水式养殖系统水质的比较 摘 要 封闭循环水养殖系统因其节约土地、水和能源，环保、高产和产品安全可控等特点，成为当前和未来推动水产养殖可持续发展主要养殖模式之一。我国北方水产养殖业逐渐兴起的封闭循环水工厂化养殖已逐渐取代原有的流水集约化养殖，尤其是在高价值鲆鲽鱼类养殖生产中。本论文集中研究了在进水水质相同、养殖对象一致、养殖密度类似的情况下，封闭循环水养殖系统和流水式开放养殖系统的水质，主要是温度、氨氮、COD、pH、TSS等水质指标的差异及变化情况。同时，结合之前所做关于生物滤器挂膜成熟水质指标变化，主要是氨氮的变化情况，探讨了封闭循环水养殖系统的挂膜成熟过程。 关键词：封闭循环水养殖系统 流水式养殖系统 水质 比较 The Water Quality Comparsion between RAS (Recirculation Aquaculture Systems) and Flowing-systems Abstract RAS ( Recirculation Aquaculture Systems) becomes the main sustained form in aquaculture because of saving land, seawater, resource, reducing pollution, high-production, good quality of goods these days and in future. RAS has been instead of flow-though systems in north of China, especially in flatfish culture. This paper focus on the change and differences of water quality , especially TAN, TSS, temperature, salinity, pH, and so on, in RAS and flow-through systems. As well, the water quality of RAS is monitoring during bacteria growing up in the biofilter to judge the stability of systems. Keywords:RAS Flowing-Systems Water-Quality 目 录 TOC \o 1-4 \h \z \u HYPERLINK \l _Toc232952333 1.前言 PAGEREF _Toc232952333 \h 1 HYPERLINK \l _Toc232952334 2.材料与方法 PAGEREF _Toc232952334 \h 4 HYPERLINK \l _Toc232952335 2.1实验材料 PAGEREF _Toc232952335 \h 4 HYPERLINK \l _Toc232952336 2.1.1实验对象 PAGEREF _Toc232952336 \h 4 HYPERLINK \l _Toc232952337 2.1.2实验试剂 PAGEREF _Toc232952337 \h 5 HYPERLINK \l _Toc232952338 2.1.2.1氨氮测定所用试剂 PAGEREF _Toc232952338 \h 5 HYPERLINK \l _Toc232952339 2.1.2.2COD测定所用试剂 PAGEREF _Toc232952339 \h 5 HYPERLINK \l _Toc232952340 2.1.2.3pH测定所用试剂 PAGEREF _Toc232952340 \h 6 HYPERLINK \l _Toc232952341 2.1.3实验系统 PAGEREF _Toc232952341 \h 6 HYPERLINK \l _Toc232952342 2.1.3.1封闭循环水系统 PAGEREF _Toc232952342 \h 6 HYPERLINK \l _Toc232952343 2.1.3.2流水开放式养殖 PAGEREF _Toc232952343 \h 9 HYPERLINK \l _Toc232952344 2.1.4实验仪器 PAGEREF _Toc232952344 \h 10 HYPERLINK \l _Toc232952345 2.2实验方法 PAGEREF _Toc232952345 \h 11 HYPERLINK \l