nZVI/C/CP原电池活化过硫酸钠体系去除水中1,4二噁烷

nZVI/C/CP Galvanic Cell Activated Sodium Persulfate System to Remove 1,4 Dioxane from Water

一种铁碳/过氧化钙原电池催化过硫酸钠氧化体系(nZVI/C/CP/CA/PS)去除水中1,4二噁烷(1,4-D),研究对比了该体系与其它修复体系对1,4-D的降解效果及修复成本,初步探索了体系中各组分药剂摩尔比、反应温度等因素对1,4-D去除的影响。实验证明:nZVI/C/CP/CA/PS体系具备明显的优越性,当nZVI/C∶CP∶CA/PS摩尔比为35∶1∶51,间歇时间为3 h,室温下反应6 h, 1,4-D的最终去除率可达90%以上。本研究为水中难降解有机污染物1,4-D提供了一种创新的治理方法,可用于1,4-D污染地下水及地表水的治理。

An nZVI/C/CP galvanic cell catalyzed sodium persulfate oxidation system(nZVI/C/CP/CA/PS)to remove 1,4 dioxane from water.The degradation and repair cost of 1,4 dioxane were compared by this system and other repair systems.The effects of molar ratio and reaction temperature on the removal of 1,4-D were investigated.The results showed that the nZVI/C/CP/CA/PS system had obvious advantages.When the molar ratio of nZVI/C∶CP∶CA/PS was 35∶1∶51,the interval reaction was 3 h,and the reaction time was 6 h at room temperature,the final removal rate of 1,4-D was over 90%.This study provided an innovative treatment method for the refractory organic pollutant 1,4 dioxane in water,and can be used for the treatment of 1,4-D polluted groundwater and surface water.