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| 磷酸氨镁法处理晚期垃圾渗滤液氨氮最佳工艺条件 | |
| 引用本文： | 吕斌,王弘宇,杨小俊.磷酸氨镁法处理晚期垃圾渗滤液氨氮最佳工艺条件[J].四川环境,2009,28(3):1-2. |
| 作者姓名： | 吕斌 王弘宇 杨小俊 |
| 作者单位： | 1. 武汉科技学院环境与城建学院,武汉,430073;武汉大学生物质资源化学与环境生物技术湖北省重点实验室,武汉,430072 2. 武汉大学土木与建筑工程学院,武汉,430072 3. 武汉科技学院环境与城建学院,武汉,430073 |
| 基金项目： | 生物质资源化学与环境生物技术湖北省重点实验室开放基金资助课题，武汉科技学院青年培育基金 |
| 摘 要： | 高浓度氨氮（NH^＋4-N）是造成晚期垃圾渗滤液难以生物处理的重要原因之一，当前物化法处理垃圾渗滤液中氨氮存在不足。磷酸氨镁（MAP）沉淀法可以彻底地去除晚期垃圾渗滤液中NH^＋4-N，而且生成的沉淀物是非常好的缓释肥料，具有较高的经济价值及应用前景。研究结果表明，最佳的工艺条件为：pH=8.5-9.5，n（N）：n（Mg）：n（P）=1：1：1时，处理效果较好，NH^＋4-N去除率大于96％，且残余总磷（TP）浓度小于原水值。 |
| 关 键 词： | 磷酸氨镁 晚期垃圾渗滤液 氨氮 |
Optimal Conditions of Magnesium Ammonium Phosphate Precipitation Process for the Treatment of High Strength Ammonium Nitrogen in Old Landfill Leachate |
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| LV Bin,WANG Hong-yu,YANG Xiao-jun.Optimal Conditions of Magnesium Ammonium Phosphate Precipitation Process for the Treatment of High Strength Ammonium Nitrogen in Old Landfill Leachate[J].Sichuan Environment,2009,28(3):1-2. | |
| Authors: | LV Bin WANG Hong-yu YANG Xiao-jun |
| Institution: | LV Bin, WANG Hong-yu, YANG Xiao-jun( 1. School of Environment ＆ Urban Construction, Wuhan Institute of Science ＆ Technology, Wuhan 430073, China;2. Hubei Biomass-Resource Chemistry ＆ Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430072, China; 3. Department of Municipal Engineering, Wuhan University, Wuhan 430072, China) |
| Abstract: | The high concentration of ammonium nitrogen （NH^＋4-N） is one of the important factors that cause difficultly to biologically treat the leacbate from old landfills. The present physic - chemical techniques have problem of inadequate removal of NH^＋4-N from landfill leachate. Magnesium Ammonium Phosphate Precipitation （MAP） process could completely remove NH^＋4-N from the old leachate. Additionally the precipitation produced is a good slow - release fertilize with high economic worth and good prospect of application. By research the optimal process parameters are obtained as pH = 8.5-9.5 and n（N） ： n（Mg） ： n（P） = 1 ： 1：1 with the good result that the removal rate of NH^＋4-N was above 96% and the residual total phosphorus （TP） concentration in treated leachate was less than that in the original leachate. |
| Keywords: | Magnesium ammonium phosphate old landfill Leachate ammonium nitrogen |
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