银川市某水厂水源水、出厂水及末梢水中有机污染物的固相萃取-气相色谱-质谱法定性检测

Qualitative analysis of organic pollutants in water from a water plant in Yinchuan by GC/MS with solid phase extraction

目的:了解宁夏银川市城区水源水、出厂水及末梢水中有机污染物的污染状况,为监督管理提供科学依据。方法:水中有机污染物采用XAD-2树脂富集,GC/MS分析测定。结果:检出银川市某水源水、出厂水及末梢水均含有微量有机污染物。水源水中以苯系物,直链烷烃和多环芳烃等为主;出厂水中以酮类、邻苯二甲酸酯类、直链烷烃为主;末梢水中含有氯代化合物、直链烃,邻苯二甲酸酯类及芳烃等有机化合物。结论:银川市饮用水及水源水均已受到有机物的污染。对不同水体优先监测、优先管理、优先控制的污染物亦应有所区别。因此建议各个水厂应加强管理,采取饮用水深度处理技术,生产出更加优质的饮用水。

Objective ：To learn the pollution status of organic chemicals in water from a water plant in Yinchuan and provide scientific basis for supervision and management. Methods： The organic pollutants in drinking water were concentrated on XAD -2 resins and analyzed by GC - MS. Results： Different organic contaminants were de-tected in the source water, treated water and peripheral water. The benzene series, straight - chain paraffin and polyaromatic hydrocarbon were main pollutants in source water, the ketones, phthalate and straight - chain paraffin were main pollutants in treated water, while chloride, straight - chain hydrocarbon, phthalate and aromatic hydro-carbon were main pollutants in peripheral water. Conclusion： The source water and the drinking water were polluted by the organic compound, so the water plants should enhance the management and adopt advanced treatment tech-nology to remove the pollutants and improve the quality of the drinking water.