利用城市污水灌溉农田,既能解决部分水肥问题,使农业增产,也是污水处理途径之一。我市近郊污水灌溉已有三十多年的历史,由于城市工业的发展,废水中的成分日益复杂,七十年代以来东郊污水灌区曾几次发生小麦大面积死亡的情况。关于污水灌溉区环境污染和对人体健康的影响,一直是人 The use of urban sewage irrigation farmland, both to solve part of the problem of water and fertilizer, so that agricultural production, but also one of the ways of sewage treatment. Sewage irrigation in the suburbs of our city has a history of more than 30 years. Due to the development of urban industry, the composition of waste water is increasingly complicated. Since the 1970s, several large-scale deaths of wheat occurred in the sewage irrigation districts in the eastern suburbs. It has always been about the environmental pollution in sewage irrigation areas and their impact on human health