粉末活性炭静态吸附水中硝基酚的试验研究  

Adsorption of nitrophenols from wastewater by powdered activated carbon under static condition

作　　者：于晓静[1] 佘宗莲[1] 高孟春[1] 李保石[1] 

机构地区：[1]中国海洋大学环境科学与工程学院海洋环境与生态教育部重点实验室,山东青岛266100

出　　处：《工业用水与废水》2009年第2期23-26,共4页Industrial Water & Wastewater

基　　金：国家自然科学基金资助项目(20507016);教育部新世纪人才支持计划(NCET-07-0780)

摘　　要：研究了常温（20℃）条件下粉末活性炭（PAC）对水中3-硝基酚、4-硝基酚、2，6-二硝基酚和2，4-二硝基酚4种硝基酚的静态吸附规律；并对照研究了未驯化的灭活活性污泥存在时，PAC对硝基酚的吸附性能。结果表明：PAC对4种硝基酚的吸附能力远大于灭活活性污泥；当硝基酚与PAC的质量比值在0.2-1.0时，PAC对4种硝基酚的吸附在60min内可达到平衡，且均符合Langmiur吸附模型；用Langmiur吸附模型时试验数据进行拟合，得出了PAC对4种硝基酚的饱和吸附容量和吸附系数。The regulation of powdered activated carbon（PAC） adsorbing 3-nitrophenol（3-NP）, 4-nitrophenol （4-NP）, 2,6-dinitrophenol（2,6-DNP） and 2,4-dinitrophenol（2,4-DNP） under static condition at normal temperature （20℃） was studied; in addition, the adsorption performance of PAC on nitrophenols with the existence of unaccli-mated inactivated sludge was also studied. The results showed that： PAC had a far more better adsorption capacity for the 4 kinds of nitrophenols than inactivated sludge; when the mass ratio of nitrophenols to PAC was 0.2 - 1.0, the balance of the adsorption could be achieved in 60 min, and the adsorption regulation fitted Langmiur model; Fitting the experimental data with Langmiur adsorption model, the saturated adsorption capacity and adsorption coefficient of PAC for the four nitrophenols were determined.

关 键 词：粉末活性炭 灭活活性污泥 硝基酚 吸附性能 

分 类 号：X132[环境科学与工程—环境科学] TU991.2[建筑科学—市政工程]