| 化肥厂高浓度氨氮废水的处理和回用 |
| |
| 引用本文： | 李晓萍,刘小波,金向军,林海波.化肥厂高浓度氨氮废水的处理和回用[J].吉林大学学报(理学版),2006,44(2):295-298. |
| |
| 作者姓名： | 李晓萍 刘小波 金向军 林海波 |
| |
| 作者单位： | （1. 吉林大学 化学学院， 长春 130021； 2. 白城师范学院 化学系， 吉林省 白城 137000） |
| |
| 摘 要： | 在实验室规模研究了通过生成鸟粪石（磷酸铵镁， MAP）去除氨氮工艺条件的影响. 加入磷酸和MgO产生MAP沉淀， pH值对其影响很大， pH值为9.0时氨氮去除效果最好. PO43-， Mg2+， NH4+的摩尔比为1 ∶1.5 ∶1时， 氨氮去除率较大并且可较好地回收氨生成鸟粪石. 此外， 物料的加入次序严重影响氨氮的去除. 两步沉淀工艺氨氮去除率达99.1%, 氨回收率为80.1%.
|
| 关 键 词： | 氨氮废水 鸟粪石 磷酸氨镁 废水处理 回用 化肥厂 |
| 文章编号： | 1671-5489(2006)02-0295-04 |
| 收稿时间： | 2005-07-25 |
| 修稿时间： | 2005年7月25日 |
Treatment and Recovery of the High Concentration Ammonia-nitrogen Wastewater from Fertilizer Plant |
| |
| LI Xiao-ping,LIU Xiao-bo,JIN Xiang-jun,LIN Hai-bo.Treatment and Recovery of the High Concentration Ammonia-nitrogen Wastewater from Fertilizer Plant[J].Journal of Jilin University: Sci Ed,2006,44(2):295-298. |
| |
| Authors: | LI Xiao-ping LIU Xiao-bo JIN Xiang-jun LIN Hai-bo |
| |
| Institution: | (1. College of Chemistry, Jilin University, Changchun 130021, China; 2. Department of Chemistry, Baicheng Teachers College, Baicheng 137000, Jilin Province, China) |
| |
| Abstract: | The effects of processing conditions on NH4+-N(ammonia-nitrogen) removal to form struvite(magnesium ammonium phosphate, MAP) were studied in a laboratory scale. MAP precipitation was carried out by adding phosphoric acid and MgO. The effect of pH was significant and the highest removal was obtained at pH 9.0. A PO43-∶Mg2+ ∶NH4+ molar ratio of 1 ∶ 1.5 ∶1 was found to be beneficial for the higher removal of NH4+-N and the higher recovery of ammonia to form struvite. In addition, the feed in sequence of material significantly affects NH4+-N removal. It was shown that a highest NH4+-N removal of 99.1% and an ammonia recovery of 80.1% could be obtained by a two-step precipitation process. |
| |
| Keywords: | ammonia-nitrogen wastewater struvite magnesium ammonium phosphate wastewater treatment recovery fertilizer |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《吉林大学学报(理学版)》浏览原始摘要信息 |
| 点击此处可从《吉林大学学报(理学版)》下载免费的PDF全文 |
