D001型阳离子交换树脂吸附Cr(Ⅲ)的平衡特性及动力学
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摘要
研究了用D001阳离子交换树脂从废水中吸附Cr(Ⅲ),探讨了吸附过程热力学和动力学。结果表明:Redlich-Peterson模型能很好地描述吸附平衡过程;热力学参数ΔG<0,ΔH>0,ΔS>0,表明树脂吸附Cr(Ⅲ)是自发、吸热和熵增过程;吸附过程符合准二级动力学模型;反应活化能为27.45kJ/mol,吸附过程受颗粒扩散控制。
Adsorption of Cr(Ⅲ)from wastewater using cation exchange resin D001 was reseached.The thermodynamics and kinetics of adsorption process were investigated.The results show that the Redlich Peterson model can use to describe the adsorption process.The thermodynamics parameters indicate that the adsorption process is spontaneous,endothermic and adding entropy.The adsorption rate follows the pseudo-second-order kinetics model with the activation energy of 27.45kJ/mol.The kinetics experiment results show the intraparticle diffusion is the adsorption process rate-limiting step.
Adsorption of Cr(Ⅲ)from wastewater using cation exchange resin D001 was reseached.The thermodynamics and kinetics of adsorption process were investigated.The results show that the Redlich Peterson model can use to describe the adsorption process.The thermodynamics parameters indicate that the adsorption process is spontaneous,endothermic and adding entropy.The adsorption rate follows the pseudo-second-order kinetics model with the activation energy of 27.45kJ/mol.The kinetics experiment results show the intraparticle diffusion is the adsorption process rate-limiting step.
引文
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[4] GARCIA-REYES R B,RANGEL-MENDEZ J R,ALFARODE L T.Chromium(Ⅲ)uptake by agro-waste biosorbents:chemical characterization,sorption-desorption studies,and mechanism[J].Journal of Hazardous Materials,2009,170(2):845-854.
[5] SAHU S K,MESHRAM P,PANDEY B D,et al.Removal of chromium(Ⅲ)by cation exchange resin,Indion 790for tannery waste treatment[J].Hydrometallurgy,2009,99(3):170-174.
[6]罗南,张晓影,李晓军,等.虾壳和松树皮对水中三价铬的吸附性能研究[J].环境科学与技术,2017,40(增刊1):44-48.
[7]马岩岩.重金属铬污染的处理方法研究进展[J].能源与环境,2017(6):48-49.
[8]余杰.乳化液膜法萃取废水中金属铬离子的研究[J].轻工科技,2014,30(2):46-48.
[9]周佳玮,罗太安,朱业安,等.载铁改性膨润土处理含Cr(Ⅵ)废水试验研究[J].湿法冶金,2016,35(4):353-356.
[10] REDDY N A,LAKSHMIPATHY R,SARADA N C.Application of citrullus lanatus rind as biosorbent for removal of trivalent chromium from aqueous solution[J].Alexandria Engineering Journal,2014,53(4):969-975.
[11] KHOSRAVI R,MOUSSAVI G,GHANEIAN M T,et al.Chromium adsorption from aqueous solution using novel green nanocomposite:adsorbent characterization,isotherm,kinetic and thermodynamic investigation[J].Journal of Molecular Liquids,2018,256:163-174.
[12] ZAROUAL Z,CHAAIR H,ESSADKI A H,et al.Optimizing the removal of trivalent chromium by electrocoagulation using experimental design[J].Chemical Engineering Journal,2008,148(2):488-495.
[13] CAVACO S A,FERNANDES S,QUINA M M,et al.Removal of chromium from electroplating industry effluents by ion exchange resins[J].Journal of Hazardous Materials,2007,144(3):634-638.
[14] MUSTAFA S,SHAH K H,NAEEM A,et al.Kinetic and Equilibrium studies of chromium(Ⅲ)removal by macroporous ion exchanger amberlyst-15(H+)[J].Chinese Journal of Chemistry,2010,28(1):27-32.
[15]范力,张建强,程新,等.离子交换法及吸附法处理含铬废水的研究进展[J].水处理技术,2009,35(1):30-33.
[16]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
[17] MANI A,KASINATHAN T,PALANIVEL S,et al.Rapid removal of chromium from aqueous solution using novel prawn shell activated carbon[J].Chemical Engineering Journal,2012,185/186(6):178-186.
[18] KARTHIKEYAN G,ANBALAGAN K,ANDAL M N.Adsorption dynamics and equilibrium studies of Zn(Ⅱ)onto chitosan[J].Journal of Chemical Sciences,2004,116(2):119-127.
[19] VCTOR-ORTEGA M D,OCHANDO-PULIDO J M,MARTNEZ-FEREZ A.Thermodynamic and kinetic studies on iron removal by means of a novel strong-acid cation exchange resin for olive mill effluent reclamation[J].Ecological Engineering,2016,86:53-59.
[20] WONG C W,BARFORD J P,CHEN G,et al.Kinetics and equilibrium studies for the removal of cadmium ions by ion exchange resin[J].Journal of Environmental Chemical Engineering,2014,2(1):698-707.
[21] FEBRIANTO J,KOSASIH A N,SUNARSO J,et al.Equilibrium and kinetic studies in adsorption of heavy metals using biosorbent:a summary of recent studies[J].Journal of Hazardous Materials,2009,162(2):616-645.
[22] BARAKA A,HALL P J,HESLOP M J.Melamine-formaldehyde-NTA chelating gel resin:synthesis,characterization and application for copper(Ⅱ)ion removal from synthetic wastewater[J].Journal of Hazardous Materials,2007,140(1):86-94.
[23] ZAGHOUANE-BOUDIAF H,BOUTAHALA M,ARAB L.Removal of methyl orange from aqueous solution by uncalcined and calcined Mg Ni Al layered double hydroxides(LDHs)[J].Chemical Engineering Journal,2012,187:142-149.
[24] BHATT R R,SHAH B A.Sorption studies of heavy metal ions by salicylic acid-formaldehyde-catechol terpolymeric resin:Isotherm,kinetic and thermodynamics[J].Arabian Journal of Chemistry,2015,8(3):414-426.
[25] WEBER W J,MORRIS J C.Kinetic of adsorption on carbon from solution[J].Journal of the Sanitary Engineering Division,1962,89:31-59.
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