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甲醛为无色刺激性气体,主要用于生产脲醛树脂、酚类、三聚氰胺,也用于生产杀霉菌剂、纺织品的防腐剂。水中的甲醛主要来自排放的工业废水。饮用水中的甲醛主要是原水中天然有机物在用臭氧或氯消毒过程中产生的,饮用水中也可发现从聚甲醛装置中释放出来的甲醛。GB 5749—2006《生活饮用水卫生标准》中规定饮用水中甲醛的限值为0.9 mg/L,
Formal colorless formaldehyde gas, mainly for the production of urea-formaldehyde resins, phenols, melamine, but also for the production of fungicides, textile preservatives. The formaldehyde in the water is mainly from the discharged industrial wastewater. Formaldehyde in drinking water is mainly due to natural organic matter in the raw water generated during the disinfection process with ozone or chlorine, formaldehyde can also be found in drinking water released from the POM device. GB 5749-2006 “drinking water health standards” in drinking water formaldehyde limit of 0.9 mg / L,