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首页> 外文期刊>Research on Chemical Intermediates >Photocatalytic ozonation for degradation of 2-sec-butyl- 4,6-dinitrophenol (DNBP) using titanium dioxide: effect of operational parameters and wastewater treatment
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Photocatalytic ozonation for degradation of 2-sec-butyl- 4,6-dinitrophenol (DNBP) using titanium dioxide: effect of operational parameters and wastewater treatment

机译：二氧化钛光催化臭氧氧化降解2-仲丁基4,6-二硝基苯酚（DNBP）：操作参数和废水处理的影响

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The results of degradation efficiency of 2-sec-butyl-4,6-dinitrophenol (DNBP) in a batch system by various advanced oxidation processes revealed the order of TiO_2/UV/O_3>TiO_2/O_3>UV/O_3>O_3>UV/TiO_2. All processes followed pseudo-first order kinetics. The influence of operational parameters such as initial pH, initial concentration of DNBP, ozone and catalyst dosage on the TiO_2/ UV/O_3 process, which was the most significant investigated method. The ozone dosage was found to have the noticeable impact on the process; however, initial pH and TiO_2 dosage were less effective. The mineralization of 40 mg/L of DNBP and petrochemical wastewater under the obtained optimal conditions was monitored by total organic carbon and chemical oxygen demand, respectively. The results demonstrated that the TiO_2/UV/O_3 process was a very effective method for degradation and mineralization of DNBP in aqueous solutions and industrial wastewater. The degradation intermediates were identified by GC-MS.
机译：各种先进氧化工艺在间歇体系中对2-仲丁基-4,6-二硝基苯酚（DNBP）的降解效率结果表明，TiO_2 / UV / O_3> TiO_2 / O_3> UV / O_3> O_3> UV的顺序/ TiO_2。所有过程都遵循拟一阶动力学。初始pH，DNBP的初始浓度，臭氧和催化剂用量等操作参数对TiO_2 / UV / O_3工艺的影响是最重要的研究方法。发现臭氧剂量对工艺有显着影响。然而，初始pH和TiO_2剂量效果较差。在获得的最佳条件下，分别通过总有机碳和化学需氧量监测40 mg / L DNBP和石化废水的矿化。结果表明，TiO_2 / UV / O_3工艺是用于降解水溶液和工业废水中DNBP的非常有效的方法。降解中间体通过GC-MS鉴定。

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