墨西哥比索纪念币:·求助 帮忙将下列中文翻译成英文啊!

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/01 05:13:57
摘要:本实验所使用的是来自场子石化的对苯二甲酸(PTA)生产废水,首先利用超声波单独处理PTA废水,分别考虑超声时间、超声功率、pH值对超声处理效果的影响;其次再用催化氧化单独处理PTA废水,分别考虑反应时间、起使浓度、pH值、氧化剂投加量对处理效果的影响;再次把预先在最佳超声条件下处理过的PTA废水再在最佳催化氧化条件下进行催化氧化处理,观察其处理效果。实验结果表明超声波单独处理PTA的CODCr降解率一般在3%左右,效果不是很好,超声时间、超声功率、pH的最佳值分别为45min、270w、3;催化氧化单独处理PTA的 CODCr降解率一般在75%左右,处理效果较为理想,反应时间、起使浓度、pH值、氧化剂投加量的最佳值分别为60min、3164mg/L、3、200mg/L;当超声波协同催化氧化处理PTA时,其CODCr的降解率一般在90%以上,处理效果较好。同时通过紫外光谱的研究发现:超声波虽然处理PTA效果不理想,但却改变了PTA分子的结构,形成了有利于催化氧化的中间态分子,所以超声波协同催化氧化处理PTA将是一种非常有前景的方法。

关键字:对苯二甲酸 超声波 降解率 催化氧化

PTA Ultrasonic Catalysis and oxidation

Summary:What this experiment use is to come from a son petrochemical are sour( PTA) to produce the waste water to two As of benzenes, make use of a wave to handle the waste water of PTA alone first, consider a time, a power, the pH value respectively to an influence that handles the result;Oxidize to handle the waste water of PTA alone with the catalyst again the next in order, consider to respond time and rise to make respectively density, pH value, oxidizing agent the hurl add quantity to processing influence of result;Carry on in advance to catalyst under the condition that under a condition the waste water of PTA that handled oxidize in the best catalyst again to oxidize the processing again, observe it handles the result.The experiment as a result expresses that a wave handle the PTA CODCr to decline the solution rate alone generally or so in 3%, the result is not very good, the best value of a time, a power, pH distinguishes for the 45 mins,270 ws,3;The catalyst oxidize alone the CODCr of handle the PTA declines the solution rate generally or so in 75%, handle the result more ideal, respond time and rise to make density, pH value, oxidizing agent hurl add the best value of the quantity to distinguish for the 60 mins,3164 mgs/ L,3,200 mgs/ L;When a wave is in conjunction with the catalyst to oxidize to handle the PTA, its CODCr declines the solution rate generally above 90%, handle the result better.Pass the research detection of the purple and outside spectrum at the same time:A wave although the processing PTA result ignores to think, but changed the structure of the PTA member, becoming to be advantageous to the middle 态 member that catalyst oxidize, so a method that be in conjunction with the catalyst and oxidize to handle the PTA and will is a kind of to have the foreground very much.

Key word:To the benzene two a wave of Ases decline the solution rate catalyst to oxidize