再生水用于都市绿地灌溉的研究进展

Research progress of irrigating urban green space with reclaimed water

污水再利用具有节水和治污双重功能,用于绿地灌溉意义重大。综述了再生水灌溉对绿地土壤、植物、地下水的影响。着重介绍了国外的研究情况,分析了其试验结果及影响因素,表明虽然再生水中的一些有害成分会发生积累,但由于处理工艺、降雨等因素影响,对绿地生态系统影响不大,使用再生水灌溉绿地是切实可行的。

Using reclaimed water for landscape irrigation has great significance, which is not only good for water-saving, but also beneficial for environment. The impact of reclaimed water irrigation on soil, plants and groundwater is outlined, the studies of other countries are mainly introduced. The results and influencing factors of different trials are analyzed, which indicates that although some of noxious substances in reclaimed water may accumulate in soil, plants and groundwater, the negative effect of recycled water irrigation on urban green area ecosystem is little because of treated technology, rainfall and so on. Irrigating urban green space with reclaimed water is feasible.