炉灰渣对地下水中硝基苯的吸附试验研究  

Study on Adsorption of Nitrobenzene in Groundwater by Furnace Ash and Slag

作　　者：尹军[1] 张立国[1] 刘志生[1] 谭学军[2] 赵可[1] 刘蕾[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]吉林建筑工程学院环境工程系,吉林长春130021

出　　处：《中国给水排水》2006年第21期85-88,共4页China Water & Wastewater

摘　　要：以预处理的炉灰和不同粒径的炉渣为吸附剂,通过吸附动力学、吸附等温线试验,考察了其对地下水中微量硝基苯的吸附性能。结果表明:在常温(15℃)下,炉灰和粒径为1.25 mm的炉渣对硝基苯的吸附符合Freundlich等温吸附方程,且吸附平衡时间均为30 m in;对于粒径分别为2.5、5.0、10.0 mm的3种炉渣,通过在Freundlich方程中引入吸附剂投加量的修正条件,也可以较好地对其进行线性拟合。对已达到吸附平衡的炉灰和炉渣的后处理试验表明,将其在马福炉内于300℃下煅烧1 h,可以实现对吸附剂的安全处置。The adsorption capacities of nitrobenzene in groundwater by pre-treated furnace ash and slag in four different sizes were investigated through adsorption kinetics and adsorption isotherm tests. The experimental results show that under the normal temperature of 15 ℃, the measured adsorption data of furnace ash and slag in 1.25 mm are fit into the Freundlich equation, and their adsorption equilibrium time is 30 min. While the modified Freundlich equation with dosage of adsorbent can be used to fit those of three slags in 2, 5 mm, 5 mm and 10 mm. Post-treatment of furnace ash and slag which have adsorbed nitrobenzene shows that safety disposal of furnace ash and slag can be accomplished by calcination at 300 ℃ for 1 h.

关 键 词：地下水 炉灰渣 硝基苯 吸附 

分 类 号：X523[环境科学与工程—环境工程]