摘要
采用粉末活性炭吸附去除水中四氯化碳，考察了活性炭投加量、吸附时间、温度等因素对去除效果的影响。结果表明，该吸附过程符合Freundlich吸附等温线模式，以物理吸附为主，并且在纯水中的吸附容量大于原水；在15～25℃内，温度对吸附效果的影响不大，但去除率随吸附时间的延长而升高；投加80mg／L粉末活性炭吸附120min，可以将0．02mg／L四氯化碳处理至《生活饮用水卫生标准》（GB5749--2006）限值（0．002mg／L）以下。
The effects of powdered activated carbon （PAC） dosage, adsorption time, temperature on removal efficiency by adopting PAC for adsorption of CC1a were investigated. The results indicated that this adsorption process fitted the Freundlich adsorption isotherm model, and the physical adsorption was the main in this adsorption process. The adsorption capacity in pure water was higher than in raw water. The temperature had few influence on adsorption effect in a range of 15 to 25℃, but the removal rate was increased with extension of adsorption time. The O. 02 mg/L CC14 could be treated below the limit value （0. 002 rag/L） of the Standards for Drinking Water Quality（ GB 5749 -2006） when dosing 80 mg/L PAC with an adsorption time of 120 min.
出处
《供水技术》
2011年第2期18-20,共3页
Water Technology
基金
广东省东莞高校科研机构和医疗卫生单位科技计划重点项目(201010814009)
