Abstract: A combined ecological floating bed was established in a pond by hanging bio-ceramic matrix under a floating bed made of aquatic plant Eichhornia crassipes and the aquaculture wastewater was purified by the floating bed made of the aquatic plant in order to improve the purification effect of the traditional plant floating bed on aquaculture water, and to reduce the aquaculture water pollution.-N, 71.17% in total phosphorus (TP), and 47.22% in chemical oxygen demand(COD) when the enhanced ecological floating bed was operated for 16 d, significantly higher than that in plant control group and matrix control group (P<0.05). The concentrations of TN and TP were decreased to the first standard of the waste water in a freshwater fish pond which was purified by the enhanced ecological floating bed, with the ammonia concentration of <0.20 mg/L and nitrite concentration of <0.01 mg/L. The findings indicated that the synergism among plant absorbing, matrix adsorption and microorganism in the enhanced ecological floating bed led to improvement of pollutant removal efficiency for aquaculture wastewater.
许国晶, 段登选, 杜兴华, 田功太, 张明磊, 刘飞. 基于生物协同作用的强化生态浮床对养殖水体的净化效果[J]. 大连海洋大学学报, 2015, 30(1): 62-67.
XU Guo-jing, DUAN Deng-xuan, DU Xing-hua, TIAN Gong-tai, ZHANG Ming-lei, LIU Fei. Aquaculture waste water treatment by an enhanced ecological floating bed based on synergistic effect. Journal of Dalian Ocean University, 2015, 30(1): 62-67.
2015, Vol. 30 
