粉煤灰基质复合滤料吸附Mn^(2+)试验研究  

ADSORPTION OF MANGANESE IONS BY FLY ASH FILTER MATERIAL

作　　者：孙阳阳[1] 黄新[1] 荆肇乾[1] 曹世玮[1] 

机构地区：[1]南京林业大学土木工程学院,江苏南京210037

出　　处：《能源环境保护》2011年第2期4-6,9,共4页Energy Environmental Protection

基　　金：住房和城乡建设部2010年科学技术项目计划(2010-K7-10);江苏省省级环保科研项目(2009005)

摘　　要：以粉煤灰基质复合滤料为吸附材料,通过单因素和正交实验相结合的实验方法,考察了吸附滤料投加量、吸附时间、原水初始浓度、振荡频率、温度等因素对除锰效果的影响。从单因素实验可知:随着滤料质量的增大,Mn2+去除率在开始时增长幅度较大,后来逐渐趋于平缓。在正交实验中固定滤料投加量为300 g/L,发现在锰离子的吸附过程中,吸附时间的影响最大,随后分别是原水浓度和温度,振荡频率的影响程度最小。Fly Ash Filter Material was used as absorption material of Mn2＋ absorption experiment.With single factor and orthogonal test,the main factors which might affect the absorption performance were investigated,including absorbent dosage,contact time,Mn2＋ initial concentration,oscillation frequency and temperature.The results of the single factor test indicated that the removal ratio of Mn2＋ increased fast at the beginning and then became slow with the absorbent dosage increased.The relative nice point is 300 g/L.At the later orthogonal test,the absorbent dosage was controlled at 300 g/L.The results of the orthogonal test indicated that the contact time have greater impact on the adsorption of Mn2＋ than the initial concentration and the temperature,and the oscillation frequency has the lowest impact.

关 键 词：粉煤灰 锰离子 吸附 单因素实验 正交实验 

分 类 号：X773[环境科学与工程—环境工程]