译 名：
Effects of two Kinds of Purification Materials on the Quality of Water in Fishpond
作 者：
Su Zhifeng1,Miao WeiMin2,Yuan Xinhua2,Dong Zaijie2,Zhang Ping1 (1Wuxi Fisheries College,Nanjing Agricultural University,Wuxi,Jangsu 214081; 2Freshwater Fisheries Research Center,Chinese Academy of Fishery Science,Wuxi,Jangsu 214081)
关键词：
brush biofilters,water spinach,the quality of water in fishpond,removal rates
摘 要：
The quality of eutrophic water in fishponds was improved by two kinds of purification materials: Brush biofilters and water spinach,the results indicated that: The transparency of two test ponds were increased markedly. Using the brush biofilters,the concentrations of TN,TP,TAN,NO2--N,NO3--N,PO43--P were decreased to 13.54%,22.68%,30.38%,12.55%,22.31%,48.97% respectively,and the DO concentration also kept in certain satisfied level; using the water spinach,the concentrations of TN,TP,TAN,NO2--N,NO3--N,PO43--P were decreased to 5.92%,23.11%,35.62%,1.41%,3.67%,56.63% respectively,and increase of the coverage rate of the water spinach is not good for the DO recovery.
