家电科技2025，Vol.4Issue(4)：59-61,3.DOI:10.19784/j.cnki.issn1672-0172.2025.04.009
反渗透净水器对三氯甲烷的吸附研究
A study on the adsorption of trichloromethane by reverse osmosis water purifiers
刘青 1吴浩 1王伟伟2
作者信息
- 1. 青岛海尔施特劳斯科技有限公司 山东 青岛 266000
- 2. 青岛海尔施特劳斯水设备有限公司 山东 青岛 266000
- 折叠
摘要
Abstract
The Ministry of Health's"Hygiene Safety and Functional Evaluation Specifications for Drinking Water Quality Treatment Equipment-Reverse Osmosis Treatment Devices"involves two trichloromethane indicators:one requires the output water quality to be≤15 μg/L,and the other requires the removal efficiency of volatile organic compounds(trichloromethane)to be≥95%(with a spiked concentration of 300 ppb).The national drinking water hygiene standard GB 5749 specifies that the trichloromethane concentration in drinking water should not exceed 60 ppb.The concentration of trichloromethane in tap water affects the final removal efficiency of the water purifier;simultaneously,the three filter elements-pre-treated activated carbon,RO membrane filter,and post-treated activated carbon-in a reverse osmosis water purifier have different adsorption effects on trichloromethane,which are directly related to the concentration of trichloromethane in tap water.After testing and verification,it was concluded that when the trichloromethane concentration in tap water is≤30 ppb,the RO membrane filter has no significant removal effect on trichloromethane,and the overall adsorption of trichloromethane by the water purifier primarily relies on the combined action of pre-treated activated carbon and post-treated activated carbon.When the trichloromethane concentration in tap water exceeds 30 ppb,the removal is mainly dependent on post-treated activated carbon.The adsorption capacity of activated carbon for trichloromethane can be estimated at 0.05%(mass ratio).关键词
三氯甲烷/活性炭/反渗透/净水器Key words
Trichloromethane/Activated carbon/Ro membrane filter/Water purifier分类
信息技术与安全科学引用本文复制引用
刘青,吴浩,王伟伟..反渗透净水器对三氯甲烷的吸附研究[J].家电科技,2025,4(4):59-61,3.
