Damage to the water resources and environment as a consequence of oil production and use of fossil fuels, has increased the need for applying various technologies and developing effective materials to remove contaminates from oily wastewaters resources. One of the challenges for an economic industrial wastewater treatment is separation and reusability of the developed purifying agents. Development of magnetic materials could potentially facilitate easier and more economic separation of purifying agents. Therefore, herein we have synthesised an efficient and easily recyclable Fe₃O₄/mordenite zeolite using a hydrothermal process to investigate its purification capability for wastewater from Kermanshah oil refinery. The synthesised Fe₃O₄/mordenite zeolite was characterised using XRD, FTIR, SEM, EDX, XRF and BET analysis. XRD result showed that the synthesised Fe₃O₄/mordenite zeolite comprised sodium aluminium silicate hydrate phase [01-072-7919, Na₈(Al₆Si₃₀O₇₂)(H₂O)_9.04] and cubic iron oxide phase [04-013-9808, Fe₃O₄]. Response Surface Method (RSM) combined with Central Composite Design (CCD) was used to identify the optimum operation parameters of the pollutant removal process. The effect of pH, contact time and Fe₃O₄/mordenite zeolite amount on the Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD) and Nephelometric Turbidity Unit (NTU) were investigated. It was found that pH was the most significant factor influencing COD and BOD removal but the quantity of Fe₃O₄/mordenite zeolite was the most influential factor on the turbidity removal capacity. The optimum removal process conditions were identified to be pH of 7.81, contact time of 15.8 min and Fe₃O₄/mordenite zeolite amount of 0.52% w/w. The results show that the regenerated Fe₃O₄/mordenite zeolite can be reused for five consecutive cycles in purification of petroleum wastes.

石油生产和使用化石燃料对水资源和环境造成的损害，增加了对应用各种技术和开发有效材料以去除含油废水资源中污染物的需求。经济的工业废水处理的挑战之一是开发的净化剂的分离和可重复使用性。磁性材料的开发可以潜在地促进纯化剂的更容易和更经济的分离。因此，在本文中，我们使用水热法合成了一种高效且易于回收的Fe ₃ O ₄ /丝光沸石，以研究其对Kermanshah炼油厂废水的净化能力。合成的Fe ₃ O ₄/ X射线沸石的特征在于XRD，FTIR，SEM，EDX，XRF和BET分析。XRD结果表明，合成的Fe ₃ O ₄ /丝光沸石包含硅酸钠铝水合物相[01-072-7919]，Na ₈（Al ₆ Si ₃₀ O ₇₂）（H ₂ O）_9.04 ]和立方氧化铁相[04]。 -013-9808，Fe ₃ O ₄ ]。响应面法（RSM）与中央复合设计（CCD）相结合，用于确定污染物去除过程的最佳操作参数。pH，接触时间和Fe ₃ O _4的影响/丝光沸石含量对化学需氧量（COD），生化需氧量（BOD）和浊度浊度单位（NTU）进行了研究。发现pH是影响COD和BOD去除的最重要因素，而Fe ₃ O ₄ /丝光沸石的含量对去除浊度的影响最大。确定最佳的去除工艺条件为pH为7.81，接触时间为15.8min，Fe ₃ O ₄ /丝光沸石的含量为0.52％w / w。结果表明，再生的Fe ₃ O ₄ /丝光沸石可连续重复使用五个循环，以净化石油废料。