离子陷阱脱除Fe^(3+)的工艺研究

Technology of removing the iron from seawater with the method of redox

以铝合金为还原剂,采用离子陷阱进行了去除Na Cl溶液中Fe3+的研究。研究了Na Cl溶液流速、温度、初始Fe3+浓度和Na Cl质量分数等操作条件对Fe3+去除效果的影响规律。结果表明,随着流速减小、温度升高、初始Fe3+浓度增大和Na Cl质量分数增大,Fe3+的脱除率升高。在质量分数为3.5%的Na Cl溶液流量为10L/h,温度为60℃,初始Fe3+浓度为10mg/L时,Na Cl溶液中Fe3+的去除率可达95%以上。

The removal of iron ions in the sodium chloride solution based on the method of redox was studied in this article. Aluminum-alloy was filled in a packed tower as the reducing agent in this reaction. Factors such as velocity, reaction temperature,initial concentration of iron ions and concentration of sodium chloride solution was investigated. The results indicated that the removal efficiency of iron ions would be increased as the velocity ofsolution reduced. Besides, the increase of the temperature, initial concentration of iron ions and concentration of sodium chloride solution would promote the removal efficiency. According to the research, over 95% of iron ions in the sodium chloride solution with the concentration of 3.5% could be removed when the velocity, temperature and initial concentration of iron ions were 10 L/h, 60 ℃ and 10 mg/L, respectively.