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Treatment of simulated petrochemical wastewater by means of continuous electrocoagulation-ultrafiltration process.

机译：连续电凝-超滤工艺处理模拟石油化工废水。

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摘要

A combined Electrochemical-Ultrafiltration process was investigated for the treatment of simulated petrochemical refinery wastewater. Phenol, crude oil and kaolin were added in concentrations typical to a refinery wastewater to simulate the soluble, immiscible and colloidal phases, respectively. Stainless steel electrodes were used in the electrochemical cell, while a submersible membrane module was utilized for ultrafiltration. The results showed that high amount of Total Dissolved Solids (TDS) in the raw water had a significant interference in the degradation of phenol. Conversely, UV-Spectrophotomter, GC and GC-MS analysis revealed a complete conversion of phenol into chlorophenols in the deionized water as base solvent, and sodium chloride as electrolyte. It is proposed that the high pH due to electrolysis of brine and the presence of chloride and ferric ions may have caused electrophilic substitution of phenoxy ion. The further degradation of cholorophenols remained a subject of further research. The COD analysis also suggested removal of organic compounds; however, the reliability of results was affected by major interference due to chlorides. A removal efficiency of 99 percent was achieved for turbidity, where as oil was removed completely.
机译：研究了电化学-超滤联合工艺对模拟石化炼油厂废水的处理。苯酚，原油和高岭土的添加浓度通常是炼厂废水的典型浓度，分别模拟可溶相，不溶混相和胶体相。在电化学电池中使用不锈钢电极，而将潜水膜组件用于超滤。结果表明，原水中大量的总溶解固体（TDS）对苯酚的降解具有明显的干扰。相反，UV-分光光度计，GC和GC-MS分析表明，去离子水作为基础溶剂，氯化钠作为电解质，苯酚已完全转化为氯酚。提出由于盐水的电解以及氯离子和三价铁离子的存在而导致的高pH值可能已经引起苯氧基离子的亲电取代。氯酚的进一步降解仍然是进一步研究的主题。 COD分析还建议去除有机化合物。但是，结果的可靠性受氯化物的主要干扰影响。浑浊度达到了99％的去除效率，其中油被完全去除了。

著录项

  • 作者

    Siddiqui, Mahmood Abdur Rafey.;

  • 作者单位

    King Fahd University of Petroleum and Minerals (Saudi Arabia).;

  • 授予单位 King Fahd University of Petroleum and Minerals (Saudi Arabia).;
  • 学科 Engineering Civil.
  • 学位 M.S.
  • 年度 2006
  • 页码 138 p.
  • 总页数 138
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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