人工湿地对水体中TDS、Turb及FDOM的净化效果研究

The Purification Effects of Constructed Wetland on TDS,Turb,and FDOM in Water Bodies

以北京市野生动物救护中心的人工湿地为案例,评估人工湿地作为一种生态净化系统在不同环境条件下对水体中溶解性总固体(TDS)、浊度(Turb)和荧光溶解性有机质(FDOM)的去除效果。采用定位观测与对比分析方法,于2023年5月至7月期间,在北京市野生动物救护中心人工湿地选取不同的样点进行水样采集与监测,使用YSI6820多参数水质监测仪监测TDS、Turb及FDOM的浓度变化,并与2009年同期数据进行比较。研究结果表明:随着样点距离的增加,人工湿地对TDS、Turb和FDOM等污染物的去除率呈上升趋势,且同一样点不同月份之间的去除率存在差异;与2009年人工湿地浊度去除率对比分析可知,2023年浊度去除率显著提升;水体温度的升高能够提高人工湿地对TDS、Turb及FDOM的去除率。

This study,utilizing the constructed wetland at the Beijing Wildlife Rescue Center as a case study,was aimed to explore the removal efficiency of artificial wetlands on water bodies for TDS,Turb,and FDOM.It evaluated the purification effect of artificial wetlands as an ecological purification system under different environmental conditions on the aforementioned indicators.Using fixed-point observation and comparative analysis methods,water samples were collected and monitored at the constructed wetland of the Beijing Wildlife Rescue Center from May to July 2023.Dfferent sampling points were selected for water sample collection,monitoring the concentration changes of TDS,Turb,and FDOM,and comparing them with data from the same period in 2009.The YSI 6820 multiparameter water quality monitor was used for on-site measurement of related indica-tors in the water samples.The results showed that the removal rates of TDS,Turb,and FDOM in constructed wetland increased with the distance from sampling points,showing an upward trend,and there were differences in removal rates between different months.Comparative analysis of the turbidity removal rates of constructed wetland in 2009 showed that the removal rate in 2023 was significantly improved;an increase in water temperature could accelerate the removal efficiency of constructed wetland for TDS,Turb,and FDOM.