作　　者： ; ; ; ; ;

机构地区： 华南师范大学化学与环境学院

出　　处： 《华南师范大学学报（自然科学版）》 2012年第2期76-79,89,共5页

摘　　要： 分析含硫污水水质时,以加酸氮气负载吹脱法分离SO23-和SO24-,再根据离子色谱测定原理,通过峰面积差值法建立了SO23-和SO24-测定方法,确定了加酸氮气负载吹脱SO23-的有效工作条件:水样pH调至1.61,3.0 L/h氮气吹脱15 min.对SO23-的抗氧化能力的实验研究,确定硫抗氧化剂(SAOB)对易氧化的SO23-的保护效果较好.据此建立的含硫污水预处理与分析方法能基本消除含硫污水中各个价态硫之间的干扰,可准确测定含硫污水中的S2O23-、SO23-和SO24-浓度,且检出限较低. To determine the sulfate, sulfite and thiosulfate concentrations in sewage sample, this study firstly devel-oped a pretreatment method to separate sulfite and sulfate by acidification and nitrogen purge. The test resuhs vali- date that, sulfite can be effectively removed by 3.0 L/h nitrogen purge for 15 minutes when pH is adjusted 1.61.Then, analyzing the pretreated and un -pretreated samples by ion chromatographer, sulfite and sulfate concentra- tions can be determined by calculation. The anti - oxidation effect of Sulfur anti - oxidation buffer （SAOB） for sul-rite is also tested and validated. Finally, this pretreatment and analysis method for determination of sulfate, sulfite and thiosulfate by ion chromatographer was developed and tested by synthetic sulfur- containing wastewater. The results validate that the method works.

关 键 词： 含硫污水 离子色谱分析 亚硫酸盐 硫代硫酸盐 硫酸盐

领　　域： [理学] [理学]