| 超声波-TiO_2光催化联合处理垃圾渗滤液 |
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| 引用本文： | 晏飞来,李静,肖广全,潘伟.超声波-TiO_2光催化联合处理垃圾渗滤液[J].环境工程学报,2010,4(2):383-386. |
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| 作者姓名： | 晏飞来 李静 肖广全 潘伟 |
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| 作者单位： | 1. 西南大学资源环境学院,重庆,400716
2. 西南大学资源环境学院,重庆,400716;重庆市农业资源与环境研究重点实验室,重庆,400716 |
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| 摘 要： | 采用超声波强化TiO2光催化技术处理垃圾渗滤液。研究了TiO2催化剂用量、光照作用、超声波作用、pH值、曝气作用等因素对垃圾渗滤液中COD和氨氮去除率的影响。结果表明,在TiO2粉末的投加量为2 g/L、pH值为11时,先采用功率为292.5 W的超声波辐射3 min,再以高压汞灯(250 W)照射3 min,垃圾渗滤液中的COD和NH3-N去除率分别达到50.1%和75%。若在同一条件下进行饱和曝气可以使NH3-N去除率进一步达到85.3%,但会降低COD的去除率。
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| 关 键 词： | 垃圾渗滤液 超声波 二氧化钛 |
Treatment of landfill leachate by coupling system of titanium dioxide and ultrasonic |
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| Yan Feilai,Li Jing,Xiao Guangquan and Pan Wei.Treatment of landfill leachate by coupling system of titanium dioxide and ultrasonic[J].Techniques and Equipment for Environmental Pollution Control,2010,4(2):383-386. |
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| Authors: | Yan Feilai Li Jing Xiao Guangquan and Pan Wei |
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| Institution: | 1. College of Resources and Environment, Southwest University, Chongqing 400716, China,1. College of Resources and Environment, Southwest University, Chongqing 400716, China; 2. Chongqing Key Lab of Agricultural Resources and Environment, Chongqing 400716, China,1. College of Resources and Environment, Southwest University, Chongqing 400716, China; 2. Chongqing Key Lab of Agricultural Resources and Environment, Chongqing 400716, China and 1. College of Resources and Environment, Southwest University, Chongqing 400716, China |
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| Abstract: | The effects of TiO2 dosage,ultraviolet,ultrasonic,pH and aeration on degradation of COD and N-NH+4 in landfill leachate were studied by the ultrasonically enhanced photocatalytic technology.The results showed that removal rates of COD and NH3-N reached 50.1% and 75%,respectively,when the TiO2 dosage was 2 g/L,pH was 11,ultrasonic(292.5 W)was radiated 3min and high pressure mercury lamp(250 W) irradiated 3 min.The removal rate of NH3-N could reach to 85.3% by aerated under the same conditions,but the removal... |
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| Keywords: | landfill leachate ultrasonic wave( US) titanium dioxide |
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