铁是我们现阶段使用量最大的金属，铁的化合物在日常生活中用途相当广泛。低价态的铁有广泛易得，无污染，还原性强等特点，在环境污染治理领域具有非常重要的地位。本文将重点总结介绍二价铁在污染物治理当中所起到的作用，二价铁-铁氧化物表面结合铁系统在污染物治理方面的作用及其机理，以及将二价铁与二价铁-铁氧化物表面结合铁系统进行对比，阐明它们反应的相同点与不同点。%Iron is used in the largest number in our current stage, and iron compounds are widely used in our daily life. The low price iron is widely accessible pollution-free, strong reduction and so on, and has a very important position in the field of environmental pollution control. The ferrous iron in the treatment of pollutants was summarized, pollutant abatement effect and mechanism of divalent iron oxide surface combined with rail system were studied, and the divalent iron and divalent iron oxide surface with iron system were compared to clarify the same points and different points in the react.
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