陶粒浮床系统酶活性变化与水质净化效果相关性分析  

Study on variation of enzyme activity in ceramsite floating bed and its relatio with removal of pollutants

作　　者：赵晓杰[1] 李晓莉[2] 陶玲[2] 张世羊[2] 李谷[2] 

机构地区：[1]华中农业大学水产学院,武汉430070 [2]中国水产科学研究院长江水产研究所,武汉430223

出　　处：《淡水渔业》2015年第6期63-69,共7页Freshwater Fisheries

基　　金：现代农业产业技术体系建设专项资金(NYCYTX-49);国家科技支撑计划(2012BAD25B05)

摘　　要：研究了陶粒浮床床体和浮床植物根部蛋白酶、脲酶、磷酸酶及脱氢酶活性变化与净化效果之间的关系。结果显示,陶粒浮床对精养池塘水体中TN、NO-2-N、NH+4-N、TP、CODMn、IP均有明显的净化效果;浮床床体和植物根部4种酶活性随着季节的变化均呈现先升高后降低的趋势。相关性分析发现,浮床床体和植物根部酶活性之间存在显著相关性;植物根部磷酸酶活性与池塘水体中TP、IP和CODMn去除率之间均显著正相关,脲酶活性与TN、NO-2-N去除率之间显著正相关,蛋白酶活性与CODMn去除率之间显著正相关,脱氢酶活性与CODMn、TN去除率之间存在显著正相关性。浮床床体磷酸酶活性同样与水体中TP、IP和CODMn去除率之间均显著正相关,脲酶活性与TN、NH+4-N去除率之间显著正相关,蛋白酶活性与CODMn去除率之间显著正相关,而浮床床体脱氢酶活性与CODMn、TN去除率之间相关性不显著。The variation of activities of proteinase,urease,phosphatase and dehydrogenase in floating bed area and roots of the plant and their correlation with purification efficiency of wastewater were studied. The results showed that there were obvious effect on the removal of TN、NO-2-N、NH+4-N、TP、CODMnand IP in aquaculture pond water by using ceramsite floating bed,and the four enzymatic activities increased and then decreased gradually which were varied with the seasons.According to the correlation analysis,there were significant correlation between enzyme activities of floating bed area and roots of the plant; For the roots of the plant,the variations of phosphatases activities were irrelevant to the removal contribution of TP、IP and CODMn,the variations of urease activities were irrelevant to the removal contribution of TN and NO-2-N,the variations of proteinase activities were irrelevant to the removal contribution of CODMn,and the variations of dehydrogenase activities were irrelevant to the removal contribution of CODMnand TN. As for the floating bed area,the variations of phosphatases activities were also irrelevant to the removal contribution of TP、IP and CODMn,the variations of urease activities were irrelevant to the removal contribution of TN and NH+4-N,the variations of proteinase activities were irrelevant to the removal contribution of CODMn,but there were no significant correlation between dehydrogenase activities which was in the floating bed area and removal rates of CODMnand TN.

关 键 词：陶粒浮床 酶活性 动态变化 水质指标 相关性 

分 类 号：S965.199[农业科学—水产养殖]