农业工程学报2011，Vol.27Issue(1)：297-302,6.DOI:10.3969/j.issn.1002-6819.2011.01.048
基于固着藻类反应器的生态沟渠构建
Construction of an ecological ditch based on periphyton reactor
摘要
Abstract
To make the effluent of constructed wetlands in a pond recirculating aquaculture system satisfy aquaculture requirent, a 150m in length, 0.5m in width and 0.6m in depth ecological ditch was constructed on the basis of the periphyton reactor theory. The reoxygenation and deep purification effect of the ditch on the effluent of constructed wetlands was explored in this study. The results showed that the level of dissolved oxygen (DO) in the effluent of constructed wetlands increased to a range of 4.41-7.91 mg/L and pH value increased significantly by flowing though the ecological ditch (P ＜0.05). DO level in the water of ecological ditch increased linearly with the length of the ditch within the range of 150 m (P ＜0.05). The ecological ditch deeply purified NH4+-N, IMn and PO43--P in the effluent of the constructed wetlands with removal rate of 19.46％, 13.38％ and 31.09％, respectively. The total coliform group was also eliminated with removal rate fluctuating between 12.5％ and 78.13％. These results indicated that the ecological ditch based on periphyton reactor could increase DO level and further reduce N, P content of the effluent from the constructed wetlands. The ecological ditch can be used as a matching water reuse system of constructed wetlands.关键词
水/净化/溶氧/固着藻类/池塘养殖Key words
water/ purification/ dissolved oxygen/ periphyton/pond aquaculture引用本文复制引用
陶玲,李谷,李晓莉,林玉良,张世羊..基于固着藻类反应器的生态沟渠构建[J].农业工程学报,2011,27(1):297-302,6.基金项目
现代农业产业技术体系建设专项资金(NYCYTX-49),中国水产科学研究院淡水渔业研究中心基本科研业务费,农业科技成果转化资金项目(2008GB23260394)资助. （NYCYTX-49）
