【摘要】 通过生态塘1—人工湿地—生态塘2污水生态处理系统,研究生态塘中狐尾藻、水白菜对受污染河水中氮磷的净化效果。结果表明,狐尾藻在高浓度污水中的生长量要远远高于低浓度污水,水白菜在高浓度污水中的生长量则要低于低浓度污水。生态塘中狐尾藻与水白菜样本中N、P的质量分数总体上随着污水浓度的降低而降低。生态塘1和生态塘2中水生植物对TN、TP的去除量均较为接近,去除效果稳定,但不同生态塘水生植物对TN、TP的去除量占相应生态塘总去除量的比例差异较大,其中生态塘1和生态塘2水生植物对TN的去除量分别占系统总去除量的4.98%和8.88%,生态塘1和生态塘2水生植物对TP的去除量分别占系统总去除量的2.70%和7.40%。更多还原

【Abstract】 The experiment was conducted to study the nitrogen and phosphorus purification effect of polluted river water by foxtail algae and cabbage in ecological pond that was set up by the ecological pond 1-constructed wetland-ecological pond 2 sewage ecological treatment system.The results showed that the growth of foxtail algae in high concentration sewage was much faster than that in low concentration sewage,while the growth of Chinese cabbage in high concentration sewage was slower than that in low concentration sewage.The removal rates of TN and TP by aquatic plants in ecological ponds 1 and 2 were similar,and the removal effects were stable.However,the removal rates of TN and TP by aquatic plants in different ecological ponds were quite different.Among them,the removal rates of TN by aquatic plants in ecological ponds 1 and 2 accounted for 4.98% and 8.88% of the total removal of TN by the system,respectively.The removal of TP by aquatic plants in Eco-pond 1 and Eco-pond 2 accounted for 2.70% and 7.40% of the total removal of TP,respectively.更多还原