人工湿地-池塘养殖复合系统水质影响因子及碱性磷酸酶活性研究  

Studies on Alkaline Phosphatase Activities and Water Quality Influence Factors in the Integrate Vertical-Flow Constructed Wetland-Aquaculture Combined System

作　　者：侯燕松[1] 李谷[1] 梁威[1] 成水平[1] 贺锋[1] 吴振斌[1] 

机构地区：[1]中国科学院水生生物研究所淡水生态与生物技术国家重点实验室

出　　处：《农业环境科学学报》2008年第4期1550-1554,共5页Journal of Agro-Environment Science

基　　金：国家十五重大科技专项(2002AA601021);中国科学院知识创新工程重要方向项目(KSCX2-SW-102);国家杰出青年科学基金项目(39925007)

摘　　要：通过实验现场采样及室内测试方法,对复合垂直流人工湿地-池塘养殖复合系统中的物理、化学、生物和生化指标进行因子分析,并在养殖周期、日变化上对碱性磷酸酶活性进行了研究。结果表明,循环池的水质明显好于对照池,影响系统水质的主要因子在循环池和对照池中是不同的,其中循环池主要影响因子是生物指标细菌,对照池主要影响因子是氮、磷等化学因子;碱性磷酸酶存在明显的日变化规律,20时达到一天的最高;循环池和对照池的碱性磷酸酶活性以及叶绿素a含量等方面存在显著性差异,其中循环池碱性磷酸酶的日变化范围是2.81～6.83mmol·L-1·h-1,对照池是5.21～8.72mmol·L-1·h-1;循环池的叶绿素a浓度在11.67～25.11μg·L-1的范围内,对照池的浓度变化范围是66.97～231.61μg·L-1,说明湿地系统对于养殖水体水质改善具有显著效果。The wastewater pollution has become a very serious problem to natural aquatic ecosystem. Constructed wetland （CW） as an effective wastewater treatment system has been largely applied to the treatment of domestic wastewater, mine wastewater, landfill leachate and ground runoff etc. The present study was designed to investigate the effect of integrated vertical-flow constructed wetland （IVCW） in a recirculation system on wastewater treatment of aquaculture pond so as to reuse the water for aquaculture and reduce the discharge of nutrients into natural water body. In this paper, the integrated vertical-flow constructed wetland （IVCW）-pond aquaculture combined system was built, physical, chemical, biological indexes were determined, and the water quality influence factors in the experimental system and control were analyzed, together with alkaline phosphatase activities （APA） during the culture period and whole a day were also determined. The results were as following： 1 ） The water quality indexes in the circulating system were much better than those in the control, and the main influence factors in the experimental circulating system and control were different, bacteria and chemical indexes （nitrogen, phosphorus and ammonia） were the main influence factors, respectively. 2） There was obvious diurnal variance for APA, and the highest APA happened at 8 pm in a day. 3） There were significant differences for APA and concentrations of chlorophyll a in the circulating pond and the control in a day, among them, the APA ranged 2.81-6.83 mmol· L^-1·h^-1 and 5.21-8.72 mmol· L^-1·h^-1, respectively, and the concentrations of chlorophyll a ranged 11.67 - 25.11 μg· L^-1 and 66.97-231.61 μg· L^-1, respectively. 4） IVCW system probably could improve the water quality of aquaculture significantly.

关 键 词：复合垂直流人工湿地 池塘养殖 碱性磷酸酶活性 因子分析 

分 类 号：X171.1[环境科学与工程—环境科学]