超声复合铁碳活化过硫酸盐处理有机废水

通过搭建超声复合铁碳活化过硫酸盐耦合系统（US/PS/Fe-C），用于处理三苯甲烷衍生物结晶紫（CV）.结果表明US/PS/Fe-C三元体系具有良好的耦合效果.对商品铁碳和自制的不同工艺铁碳活化剂，分别采用X-射线衍射仪和扫描电子显微镜对活化剂的结构和表面形貌进行分析.使用商品铁碳作为活化剂研究不同因素对US/PS/Fe-C三元耦合体系降解CV的影响，其最优条件为：PDS浓度2 mmol ·L^-1，铁碳活化剂1 g ·L^-1，pH未调，30 min后对质量浓度为15 mg ·L^-1CV的去除率达90%.探究阴阳离子对于体系的影响，发现Mg²⁺和NO^3-对体系处理几乎没有影响，Mn²⁺、Cl^-和CO₃^2-对于体系的处理有一定的抑制作用，Fe²⁺在低浓度时可以促进反应，在高浓度时会抑制反应.通过加入不同的淬灭剂，得出在该体系中主要含有¹O₂、SO₄^- ·、·O₂^-和·OH这4种活性物质.

Ultrasonic Composite Iron-carbon Activated Persulfate for Treating Organic Wastewater

A coupling system of ultrasonic composite iron-carbon activated persulfate (US/PS/Fe-C) was built to treat a triphenylmethane derivative, crystal violet (CV). The results revealed that US/PS/Fe-C ternary system had a good coupling effect. The structure and surface morphology of commercial Fe-C and self-made Fe-C catalysts were analyzed using an X-ray diffractometer (XRD) and scanning electron microscope (SEM), respectively. Finally, commercial Fe-C was used to study the effects of different factors on the CV of US/PS/Fe-C ternary coupling degradation, and the optimum conditions were as follows:PDS concentration 2 mmol·L^-1, iron-carbon catalyst 1 g·L^-1, pH without adjustment, and the removal rate of 15 mg·L^-1 CV reached 90% after 30 min. To explore the effects of anions and cations on the system, it was observed that Mg²⁺ and NO₃^- had almost no effect on the treatment of the system, and Mn²⁺, Cl^-, and CO₃^2- had a certain effect on the treatment of the system, whereas Fe²⁺ could promote the reaction at low concentration and inhibit the reaction at high concentration. By adding different quenchants, it was concluded that there were four types of active substances:¹O₂, SO₄^-·,·O₂^-, and·OH.