条纹斑竹鲨养殖藻丛刷系统水质净化技术的应用
2015-06-22张达娟张树林孙茂军等
张达娟 张树林 孙茂军等



摘 要:利用人工构建的藻丛刷(Algal Turf Scrubber,ATS)系统处理条纹斑竹鲨养殖用水,并对水中NO3--N、NO2--N、NH4+-N和PO43--P等水质指标进行监测,以确定藻丛刷系统对观赏鱼养殖用水水质的净化效果。试验为期60d,试验期间不换水。结果表明,整个试验期间,水中NO3--N含量维持在5.64~9.87mg/L范围内,NO2--N含量维持在0.03~0.07mg/L范围内,NH4+-N含量维持在0.03~0.07mg/L范围内,PO43--P含量维持在1.33~1.78mg/L范围内。由此可见,在合适的养殖密度和适当的投饵条件下,藻丛刷系统能够有效净化鲨鱼养殖用水水质,使其在不换水情况下维持在稳定范围内。
关键词:藻丛刷系统;鲨鱼;水质;净化
中图分类号 S91 文献标识码 A 文章编号 1007-7731(2015)11-113-04
Abstract:In order to investigate effects of algal turf scrubber(ATS)on cultivated water purification of ornamental fish,artificial ATS was used to purify cultivated water of Chiloscyllium plagiosum and water quality indicators,including NO3--N,NO2--N,NH4+-N and PO43--P,were measured.The experiment lasted for 60d and water was not renewed.The results showed that contents of NO3--N,NO2--N,NH4+-N and PO43--P were kept in the range of 5.64~9.87mg/L,0.03~0.07mg/L,0.03~0.07mg/L and 1.33~1.78mg/L respectively during the whole experiment.It was indicated that ATS could purify cultivated water of Chiloscyllium plagiosum effectively and maintain stabilization of water quality when shark were cultured with appropriate density and feeding dose.
Key words:Algal turf scrubber;Chiloscyllium plagiosum;Water quality;Purification
随着人们生活水平的提高,观赏水族养殖已成为家庭装饰的新宠。观赏水族养殖在高速、大规模发展的同时也存在着一些问题,养殖用水的污染就是其中之一。由于水族箱体积有限、投饵和交换水困难,易造成N、P等物质的堆积,导致养殖对象生长缓慢,易发疾病,降低了水族箱的观赏性和装饰性。
底栖藻类作为水体中的重要初级生产者,不仅是水生态系统中物质循环和能量流动的基础[1],也可以通过自身吸收利用、吸附、络合以及与其他生物协同作用调节水生态系统,净化水质[2]。自20世纪50年代开始,研究学者开始关注利用藻类去除水体中N、P来净化水质,已经取得了一定的成果,并且开发出以此为基础的藻丛刷系统(Algal Turf Scrubber,ATS)[3]、底栖藻类-生物膜系统[4]和底栖藻类水产养殖系统[5-6],已经成功用于畜禽、水产养殖废水的处理与净化中。……
