改性甘蔗渣填充柱对铅离子的吸附

中国有色金属学报, 2014, 24(7): 1921-1926.

改性甘蔗渣填充柱对铅离子的吸附

王丽艳 ^1, , 余军霞 ^2, , 何正艳 ^3, , 徐志高 ^4, , 张越非 ^5, , 池汝安 ^6,

1.武汉工程大学化工与制药学院绿色化工过程教育部重点实验室,武汉,430074

2.武汉工程大学化工与制药学院绿色化工过程教育部重点实验室,武汉,430074

3.武汉工程大学化工与制药学院绿色化工过程教育部重点实验室,武汉,430074

4.武汉工程大学化工与制药学院绿色化工过程教育部重点实验室,武汉,430074

5.武汉工程大学化工与制药学院绿色化工过程教育部重点实验室,武汉,430074

6.武汉工程大学化工与制药学院绿色化工过程教育部重点实验室,武汉,430074

基金项目: 湖北杰出青年基金资助项目(2011CDA101,2013CFA035) 教育部新世纪优秀人才资助项目(NCET-11-0966) 长江学者和创新团队发展计划资助项目(IRT0974) 教育部科学技术重点研究项目(213024A)

关键词：固定床 , 吸附 , 甘蔗渣 , 穿透曲线 , 竞争吸附

Dynamic adsorption of lead ion on modified bagasse fixed bed

Keywords： fixed bed , adsorption , bagasse , breakthrough curve , competitive adsorption

制备改性甘蔗渣并探讨了其对Pb2+的动态吸附,在单一体系中研究填充粒径、溶液初始浓度和流速等对Pb2动态吸附的影响,考察填充柱的重复使用情况;在两组分体系中考察Cu2+和Zn2+对Pb2+动态吸附的影响.结果表明:单一体系中,粒径、流速及初始浓度对Pb2+的动态吸附影响较小(吸附容量:118.9～148.6 mg/g),填充柱可在较宽的实验条件下使用,改性甘蔗渣可反复使用.两组分体系中,改性甘蔗渣对Pb2+的吸附亲和力显著高于对Cu2+和Zn2+的,吸附中存在明显的竞争取代过程;改性甘蔗渣填充柱可实现Pb2+、Cu2+和Pb2+、Zn2+的选择性分离.金属离子的吸附过程伴随着H+的释放过程,酸度越高,填充柱对重金属离子的吸附容量越小.

参考文献

[1]	邱廷省,成先雄,郝志伟,罗仙平.含镉废水处理技术现状及发展[J].四川有色金属,2002(04):38-41.
[2]	马前,张小龙.国内外重金属废水处理新技术的研究进展[J].环境工程学报,2007(07):10-14.
[3]	OFOMAJA A E,NAIDOO E B,MODISE S J .Kinetic and pseudo-second-order modeling of lead biosorption onto pine cone powder[J].Industrial & Engineering Chemistry Research,2010,49(6):2562-2572.,2010.
[4]	ZOLGHARNEIN J,SHAHMORADI A .Characterization of sorption isotherms,kinetic models,and multivariate approach for optimization of Hg(Ⅱ) adsorption onto fraxinus tree leaves[J].Journal of Chemical & Engineering Data,2010,55(11):5040-5049.,2010.
[5]	RANJAN D,HASAN S H .Parametric optimization of selenite and selenate biosorption using wheat bran in batch and continuous mode[J].Journal of Chemical & Engineering Data,2010,55(11):4808-4816.,2010.
[6]	HASAN S H,RANJAN D,TALAT M .Agro-industrial waste ‘wheat bran’ for the biosorptive remediation of selenium through continuous up-flow fixed-bed column[J].Journal of Hazardous Materials,2010,181:1134-1142.,2010.
[7]	王瑀
[8]	PUSPA L H,KEDAR N G,KATSUTOSHI I .Adsorption behavior of heavy metals onto chemically modified sugarcane bagasse[J].Bioresource Technology,2010,101
[9]	YU J,TONG M,SUN X,LI B .Cystine-modified biomass for Cd(Ⅱ) and Pb(Ⅱ) biosorption[J].Journal of Hazardous Materials,2007,143(1):277-284.,2007.
[10]	何正艳,齐亚凤,余军霞,池汝安.改性甘蔗渣对Pb2+、Cd2+的吸附行为研究[J].环境科学与技术,2012(10):58-61.
[11]	YU J,WANG L,CHI R,ZHANG Y,XU Z,GUO J .Competitive adsorption of Pb2+and Cd2+ on magnetic modified sugarcane bagasse prepared by two simple steps[J].Applied Surface Science,2013,268
[12]	KARNITZ JR O,GURGEL L V A,DE MELO J C P,BOTARO V R,MELO T M S,DE FREITAS GIL R P,GILL F .Adsorption of heavy metal ion from aqueous single metal solution by chemically modified sugarcane bagasse[J].Bioresource Technology,2007,98(6):1291-1297.,2007.
[13]	AKSUZ,(C)A(G)ATAY (S) (S),G(O)NEN F .AKSUZ,(C)A(G)ATAY (S) (S),G(O)NEN F.Continuous fixed bed biosorption of reactive dyes by dried Rhizopus arrhizus:Determination of column capacity[J].Journal of Hazardous Materials,2007,143:362-371.,2007.
[14]	HAN R,ZHANG J,ZOU W,XIAO H,SHI J,LIU H .Biosorption of copper(Ⅱ) and lead(Ⅱ) from aqueous solution by chaff in a fixed-bed column[J].Journal of Hazardous Materials,2006,133:262-268.,2006.
[15]	HAN R,WANG Y,ZHAO X,WANG Y,XIE F,CHENG J,TANG M .Adsorption of methylene blue by phoenix tree leaf powder in a fixed-bed column:Experiments and prediction of breakthrough curves[J].Desalination,2009,245:284-297.,2009.
[16]	HAN R,WANG Y,ZOU W,WANG Y,SHI J .Comparison of linear and nonlinear analysis in estimating the Thomas model parameters for methylene blue adsorption onto natural zeolite in fixed-bed column[J].Journal of Hazardous Materials,2007,145:331-335.,2007.
[17]	张同胜.含重金属离子废水处理过程中pH值的设定[J].硫酸工业,2005(04):27-30.

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