Chen Jian-jun, Lu Xiao-ming, Lu Shao-yong, Jin Xiang-can, Huang Min-sheng, Zhang Yong, Zhao Feng
Research Center for lake Ecology & Environments, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Huan Jing Ke Xue. 2009 Dec;30(12):3585-9.
Aquatic plants (Ponsederie cordaza) were waked in two purifying-tanks to investigate the effects of illumination intensity and aeration on diurnal variations of Chla, SP, POD of Ponsederia cordaza and pH, DO, COD, NH4+ -N, TP of water from purifying-tanks when treating the malodorous river water at seven different times, another blank purifying-tank was set as a control. Comparative studies and correlation analysis of these different indicators were carried out to improve the plants working efficiency and provide scientific basis for optimal operation of plant purifying-tanks. Results showed that all indicators affected by changes of light, TP shows best correlation coefficient Cr = 0.93, p < 0.01) of physicochemical indicators and SP behaves best correlation coefficient Cr = 0.91 , p < 0.01) of plant physiology indicators in non-aeration purifying-tank;aeration is necessary as diurnal average of DO shows an increase of 0.13 mg/L by treatment of plant meanwhile 1.8 mg/L by plant with aeration,purifying-tanks with aeration got 7.1%, 6.3% higher removing rates of COD, NH4+ -N and 38% less TP removing rate than non-aeration plant purifying-tanks (p < 0.01); with aeration treatment, significant reduction of Chla, SP content (p < 0.05) and increase of POD activity (p < 0.05) observed in plants; the changes of illumination intensity and aeration can significantly affect physiological characteristics of plants and should be considered carefully and need further study when treating malodorous river water by plant purifying-tanks.
将水生植物（菖蒲）置于两个净化池中，研究在七个不同时间处理臭水河流水时，光照强度和曝气对菖蒲叶绿素a（Chla）、可溶性蛋白（SP）、过氧化物酶（POD）以及净化池水体pH、溶解氧（DO）、化学需氧量（COD）、氨氮（NH4+-N）、总磷（TP）日变化的影响，另设一个空白净化池作为对照。对这些不同指标进行比较研究和相关性分析，以提高植物的工作效率，为植物净化池的优化运行提供科学依据。结果表明，所有指标均受光照变化影响，在非曝气净化池中，TP在理化指标中表现出最佳相关系数Cr = 0.93，p < 0.01），SP在植物生理指标中表现出最佳相关系数Cr = 0.91，p < 0.01）；曝气是必要的，因为植物处理使DO日均值增加0.13mg/L，而植物曝气处理使DO日均值增加1.8mg/L，曝气净化池对COD、NH4+-N的去除率比非曝气植物净化池分别高7.1%、6.3%，对TP的去除率比非曝气植物净化池低38%（p < 0.01）；经过曝气处理，植物中Chla、SP含量显著降低（p < 0.05），POD活性增加（p < 0.05）；光照强度和曝气的变化会显著影响植物的生理特性，在利用植物净化池处理臭水河流水时应谨慎考虑并需要进一步研究。
