鄂尔多斯盆地方沸石矿的发现及其吸附性能研究
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摘要
综合应用显微分析术对鄂尔多斯盆地白垩系的钻孔岩样进行研究,发现许多岩样中方沸石质量分数在15%~25%。对方沸石矿进行提纯和改性,并对其吸附性能进行研究。利用改性后的方沸石矿处理100mL起始质量浓度为4.93mg/L的含氟水,当方沸石改性矿用量为3.0g,搅拌时间为150min,粒度小于100目时,取得了明显的除氟效果。方沸石改性矿对氟离子的吸附符合Langmuir等温式,表达式为:qe=0.066ce/1+0.667ce;饱和吸附容量为0.126mg/g。方沸石改性矿对氟离子的吸附速度符合斑厄姆公式,表达式为:dq/dt=2.023×10-2(qe-q)t0.051。
The drilling samples from Cretaceous System in Ordos Basin were studied by micro-analysis methods.Analcite ores are found widespreadly in sedimentary rocks and the content is about15% ~25%.The adsorption performance of analcite ores was studied after purification and modification.Treatment 100 mL solution containing 4.93mol/L fluorine,the dosage of analcite modified ores is 3.0grams.Stirring time is 150 minutes.The particle size is less than 100 mesh.The absorption isotherm of analcite modified ores is in conformity with Langmuir absorption isotherm.The expression means qe =0.066ce/1+0.667ce.Saturated adsorption capacity of analcite modified ores is 0.126mg/g.The absorption rate of analcite modified ores is in conformity with Banerm formula. The expression means dq/dt=2.023×10-2(qe-q)t0.051.
The drilling samples from Cretaceous System in Ordos Basin were studied by micro-analysis methods.Analcite ores are found widespreadly in sedimentary rocks and the content is about15% ~25%.The adsorption performance of analcite ores was studied after purification and modification.Treatment 100 mL solution containing 4.93mol/L fluorine,the dosage of analcite modified ores is 3.0grams.Stirring time is 150 minutes.The particle size is less than 100 mesh.The absorption isotherm of analcite modified ores is in conformity with Langmuir absorption isotherm.The expression means qe =0.066ce/1+0.667ce.Saturated adsorption capacity of analcite modified ores is 0.126mg/g.The absorption rate of analcite modified ores is in conformity with Banerm formula. The expression means dq/dt=2.023×10-2(qe-q)t0.051.
引文
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[3]Jiang XiaoWei,Wang Xusheng,Wan Li,et al.An analytical study on stagnation points in nested flow systems in basins with depth-decaying hydraulic conductivity[J].Water Resources Research,2011,47:1-16.
[4]Chunjie Li,Yang Dong,Deyi Wu.Surfactant modified zeolite as adsorbent for removal of humic acid from water[J].Applied Clay Science,2011,52:353-357.
[5]Jie Xie,Chunjie Li,Lina Chi,et al.Chitosan modified zeolite as a versatile adsorbent for the removal of different pollutants from water[J].Fuel,2013,103:480-485.
[6]陈方明,李海波,黄江英,等.多孔方沸石球的除氟及再生机理研究[J].环境工程学报,2014,8(3):857-863.
[7]Jones D L,Edwards-Jones G,Murphy D V.Biochar mediated alterations in herbicide breakdown and leaching in soil[J].Soil Biology and Biochemistry,2011,43(4):804-813.
[8]S Wei B,M Tauber,W Somitsch,et al.Enhancement of biogas production by addition of hemicellu-lolytic bacteria immobilised on activated zeolite[J].Water Research,2010,44:1970-1980.
[9]邵新民.中国西北内陆干旱盆地地下水资源评估与开发[J].水文地质工程地质,2002,29(2):20-23.
[10]Zhang Zhaoji,Li Yuanyuan,Chen Shaohua,et al.Simultaneous nitrogen and carbon removal from swine digester liquor by the Canon process and denitrification[J].Bioresource Technology,2012,114:84-89.
[11]陈方明,李兆华,陆琦.鄂尔多斯盆地白垩系方沸石岩的发现及其对硫酸盐水的处理[J].矿物岩石地球化学通报,2006,25(4):339-342.
[12]侯光才,林学钰,苏小四,等.鄂尔多斯白垩系盆地地下水系统研究[J].吉林大学学报(地学版),2006,36(3):391-398.
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