再生水农业灌溉的研究

Research on application of reclaimed water for agriculture irrigation

介绍了北京市农业灌溉用水现状及污水处理的发展。结合国内外的利用情况及研究成果,证明二级处理水完全可以用于农业灌溉。经过样本分析,得出二级处理水用于农业灌溉基本可以忽略重金属的影响,研究重点应集中在养分和盐分含量的增多所引起的生态效应,并根据水质分析结果,建立再生水农业灌溉生态效应指标。

Present situation of agricultural irrigated water in Beijing and the development of sewage treatment are presented in this paper. By adopting technologies and research achievements both at home and abroad, the secondary treated wastewater can be used for agricultural irrigation. According to the analysis of samples, the impact of most heavy metal elements in the secondary treated wastewater on the agricultural irrigation can be ignored. The paper holds that the research should be focus on ecological effect induced by the nutrient and salinity increase and suggests the establishment of index of the ecological effect of using reclaimed water for agricultural irrigation.