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Position: Home > Articles > Purification effect of combined ecological floating bed on aquaculture wastewater Journal of Shanghai Ocean University 2015,24 (1) 94-101

组合生态浮床净化养殖水体效果研究

作  者：
许国晶;段登选;杜兴华;田功太;张明磊;刘飞
单  位：
山东省淡水渔业研究院
关键词：
大薸;组合生态浮床;水质净化;养殖排放水
摘  要：
为了研究由水生植物与人工介质构建的组合生态浮床对养殖水体的净化效果,通过在大薸(Pistia stratiotes)底部放置生物陶粒基质构建了组合生态浮床,研究了该组合浮床对养殖水体的净化效果。数据表明,组合生态浮床对总氮、氨氮(NH+4-N)、亚硝氮(NO-2-N)、总磷、化学需氧量(COD)去除率分别达到52.38%、77.78%、81.97%、67.57%和43.98%,均显著高于植物对照组和基质对照组(P<0.05)。经组合浮床净化后的养殖水体中,TN、TP水平分别达到淡水池塘养殖排放水一级标准,NH+4-N水平降至0.15 mg/L以下,NO-2-N水平降至0.02 mg/L以下。结果表明,组合生态浮床中植物吸收、基质吸附及微生物的协同作用提高了其对污染物的去除效果,合理的生物组合对提高生态浮床净化养殖废水效果具有积极的促进作用。研究结果为构建适宜养殖水体净化的组合型生态浮床提供了技术支撑。
译  名：
Purification effect of combined ecological floating bed on aquaculture wastewater
作  者：
XU Guojing;DUAN Dengxuan;DU Xinghua;TIAN Gongtai;ZHANG Minglei;LIU Fei;Freshwater Fisheries Research Institute of Shandong Province;
关键词：
Pistia stratiotes;;combined ecological floating bed;;water purification;;aquaculture wastewater
摘  要：
In order to study the purifying effect of combined ecological floating bed constructed by plants and artificial medium on the aquaculture wastewater,a combined ecological floating bed in pond was established by hanging the bio-ceramic matrix under the roots of Pistia stratiotes. Results showed that the removal rates of combined ecological floating bed for total nitrogen(TN),NH4+-N,NO2--N,total phosphorus(TP),chemical oxygen demand(COD) were 52. 38%,77. 78%,81. 97%,67. 57% and 43. 98% respectively,which were significantly higher than the removal rates by single plant control or single matrix control(P <0. 05). The concentration of TN and TP matched the Class Ⅰ standard of the waste water of freshwater fish pond after being purified by combined ecological floating bed,and the concentration of ammonia and nitrite decreased to below 0. 15 mg / L and 0. 02 mg / L respectively. The results also showed that the synergism of plant absorbing,matrix adsorption and microorganism enhanced the pollutant removal efficiency of floating bed and reasonable biological combination played a positive role in promoting purification effect on culturing wastewater by floating bed. This study provided technical support for building combined ecological floating bed proper for culturing wastewater purification.

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