生物滤料净化精养池塘废水的效果研究

目的]研究生物刷净化废水的效果。方法]通过在临窗水族箱内吊挂生物刷的方法来净化精养池塘的废水。设置了对照组(无生物刷)、试验组①(5串生物刷)、试验组②(10串生物刷)和试验组③(15串生物刷),研究生物刷对水质的改善作用和最优的配置密度。结果]生物刷对TN、NO2均有一定的去除效果,对DO的升高也有一定的作用;在此试验条件下,试验组②生物滤料净化精养池水的综合效果最佳。结论]生物刷对精养池塘废水具有良好的净化效果,在此试验条件下,净化废水所需的最优密度配置为0.07串/L。

Effect of Treating Wastewater from Intensive Fish Ponds by Biological Filter

Objective ] To study the effect of bio-filer to treat wastewater. Method ] The bio-fiher was hung in the aquarium close to windows for treatment of wastewater from in intensive fish pond. Four test groups were designed in the experiment： controlled group （ no bio-filter）, No. l group （5 bundles of bin-filter）, No. 2 group （ 10 bundles of bio-filter） and No. 3 group （ 15 bundles of bio-filter）, the purificating effect of bio-filter on water quality and optimal configtlration were studued. Result] The bio-fiher was effective on the removal of total nitrogen and nitrite nitrogen, and on improving DO. Through analysis of water quality parameters, No. 2 group showed the best effect on water purification. Conclusion ] Bio-tiher was effective on wastewater treatment of intensive fish pond. The optimal density of bio-fi｜ter in the indoor experiment for water purification was 0.07 bundles/L （water）.