环氧氯丙烷生产废水的资源化处理技术

采用催化湿式过氧化物氧化法（CWPO）处理环氧氯丙烷生产废水，考察了反应温度、反应时间、反应pH、双氧水和FeSO₄#x000b7;7H₂O加入量及投加方式等因素对TOC去除率的影响。实验结果表明：CWPO工艺适宜的反应条件为反应温度90℃，反应pH2.0~3.0，FeSO₄#x000b7;7H₂O₂加入量7.50~8.75g/L，双氧水加入量75mL/L，反应时间100min；双氧水和Fe²⁺分多次投加时的TOC去除效果明显优于一次性投加；优化条件下，环氧氯丙烷废水经CWPO工艺处理后，TOC由1790mg/L降至138mg/L，符合氯碱厂隔膜电解槽进槽盐水的要求，可以资源化利用。

Reutilization Technology of Epichlorohydrin Production Wastewater

Epichlorohydrin production wastewater was treated by catalytic wet peroxide oxidation process. The factors affecting TOC removal rate were studied,such as reaction temperature,reaction time,reaction pH,H₂O₂ dosage,FeSO₄#x000b7;7H₂O₂ dosage and dosing mode. The experimental results show that：The TOC removal rate by multiple dosing of H₂O₂ and Fe²⁺ is significantly higher than that by once dosing；Under the conditions of reaction temperature 90 ℃,reaction time 100 min,reaction pH 2.0-3.0,H₂O₂ dosage 75 mL/L and FeSO₄#x000b7;7H₂O₂ dosage 7.50-8.75 g/L,the wastewater TOC can be decreased from 1 790 mg/L to 138 mg/L,which can meet the requirement for the influent of diaphragm electrolyzer in chloro-alkali plant.