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Treatment of crude oil contaminated wastewater via an electrochemical reaction

机译：通过电化学反应治疗原油污染废水

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A cost-effective and catalyst-free approach for the treatment of oil field formation water has been extensively explored in this work. ZnO NPs were synthesized via an electrochemical reaction using hydrogen peroxide as the electrolyte. The XRD and TEM analysis depicted the high purity and wurtzite hexagonal structure of ZnO NPs with an average size of 35 ± 5 nm. TGA data showed the thermal stability of the synthesized material up to 750 °C. The efficiency of the removal of hydrocarbons from formation water by the combination of electrochemical reaction and synthesized ZnO NPs was monitored by GC-MS and FTIR. GC-MS analysis revealed that out of 214 compounds (present in the untreated sample), a total of 131 compounds were adsorbed by ZnO NPs. Further, the absence of any compound in the chromatogram of the treated sample attests that the rest of the compounds were completely or partially degraded by electrochemical degradation reaction. Moreover, this technique overcomes some of the important drawbacks of the existing techniques in the area of electrochemical research, such as the generation of toxic byproducts, unwanted side reactions, and involvement of hazardous chemicals.
机译：在这项工作中，广泛探索了一种用于治疗油田地层水的成本效益和催化的无催化剂方法。通过使用过氧化氢作为电解质的电化学反应合成ZnO NP。 XRD和TEM分析描绘了ZnO NP的高纯度和紫吨六角形结构，平均尺寸为35±5nm。 TGA数据显示合成材料的热稳定性高达750℃。通过GC-MS和FTIR监测通过电化学反应和合成的ZnO NPS组合从形成水中除去烃的效率。 GC-MS分析显示，在214个化合物中（存在于未处理的样品中）中，通过ZnO NPS吸附了总共131个化合物。此外，在处理样品的色谱图中没有任何化合物证明了通过电化学降解反应完全或部分地降解化合物的其余部分。此外，该技术克服了电化学研究领域现有技术的一些重要缺点，例如有毒副产物的产生，不需要的副反应和危险化学品的参与。

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