| 超声辐照去除焦化废水中的氨氮 |
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| 引用本文： | 徐金球,贾金平,宁平,徐晓军.超声辐照去除焦化废水中的氨氮[J].化工环保,2004,24(4):252-255. |
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| 作者姓名： | 徐金球 贾金平 宁平 徐晓军 |
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| 作者单位： | 上海交通大学,环境科学与工程学院,上海,200240;昆明理工大学,环境科学与工程学院,云南,昆明,650093 |
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| 基金项目： | 云南省自然科学基金项目(2001E0019M) |
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| 摘 要： | 采用超声辐照去除焦化废水中的氨氮，在废水初始pH为8～9、氨氮初始质量浓度为121mg／L、饱和气体同时曝气同时超声的作用方式下对氨氮去除效果最佳。通过测定自由基清除剂对氨氮去除过程的影响和氨氮的转化形态，提出了超声去除氨氮的作用机理可能是溶液中的氨分子进入空化泡内进行高温热解反应最终转化成氮气和氢气的过程。
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| 关 键 词： | 超声波 焦化废水 氨氮 废水处理 |
| 文章编号： | 1006-1878(2004)04-0252-04 |
| 修稿时间： | 2003年7月13日 |
Removal of Ammonia from Coking- plant Wastewater by Ultrasonic Irradiation Process |
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| Jinqiu,Jia Jinping,Ning Ping,Xu Xiaojun.Removal of Ammonia from Coking- plant Wastewater by Ultrasonic Irradiation Process[J].Environmental Protection of Chemical Industry,2004,24(4):252-255. |
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| Authors: | Jinqiu Jia Jinping Ning Ping Xu Xiaojun |
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| Abstract: | trasonic irradiation process was used in removing ammonia from coking - plant wastewater.The effects of initial pH, initial ammonia mass concentration and saturated air existence and its aeration ways on the removal efficiency of ammonia were investigated. Based on the effects of free radical scavenger on the removal of ammonia and ammonia transformation, the mechanism of ammonia removal by the process may be that the ammonia molecules in wastewater enter into the cavitation bubbles and transform into nitrogen molecules and hydrogen molecules via pyrolysis under instant high temperature and high pressure in the cavitation bubbles. |
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| Keywords: | trasonic irradiation coking - plant wastewater ammonia wastewater treatment |
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