摘要
在人工模拟稻田水的条件下,文章利用芦苇、睡莲、菖蒲三种水生植物吸附稻田退水中的营养物质—氮和磷。本实验的稻田水主要是人工模拟的稻田水,同时配置了不同的营养物质浓度。实验结果表明:三种水生植物对稻田排水中的营养物质具有较好的吸附性能。其中,芦苇对稻田退水中TN、TP的吸附效果较好,去除率分为:79%、96%。本实验采用的植物混种法对于去除水体中营养物质也具有较好的吸附作用,特别是芦苇和菖蒲组合对水中TP的去除率高达97%。
This paper uses three kinds of aquatic plants reed, water hly and iris to absorb nutrition in the rice paddy hack water--nitrogen and phosphorus on the condition of artificial paddy field water. The paddy water of this experiment is mainly artificial with different nutrition concentration. The result of the experiment shows： Three kinds of aquatic plants have better absorption to the nutrition in the paddy back water. Among them, reed has a better absorption to TN,TP in the paddy water, the rate of removing is 79% and 96%; The experimental results of plants to remove water in mixed kinds nutrients also has good adsorption role, especially the reeds and calamus combinations on water TP removal reaches as high as 97%.
出处
《环境与发展》
2011年第1期72-73,共2页
Environment & Development
关键词
水生植物
农业污水
水体净化
脱氮除磷率
aquatic Plant
agricultural wastewater
water purification
removal rate of nitrogen and phosphorus
