螺旋藻对稀土铒离子的吸附特性研究
|
摘要
以螺旋藻为吸附剂,对模拟矿山废水中的稀土Er~(3+)进行吸附特性研究.研究了被处理液的pH值、螺旋藻的剂量、初始Er~(3+)浓度和吸附时间等因素对吸附过程的影响.通过Freundlich,Langmuir,Redlich-Peterson和Dubinin-Radushkevich等温吸附模型,以及伪一级、伪二级、Elovich方程和颗粒内扩散动力学模型,对该过程的吸附动力学和热力学规律进行探讨,以了解该吸附过程的机理.吸附结果显示:当被处理液的p H值为5、螺旋藻的剂量为2.0g/L、吸附温度为298K、初始Er~(3+)浓度为100mg/L和吸附时间为60min时,螺旋藻对模拟矿山废水中Er~(3+)的吸附去除率为90.73%,通过HNO_3解吸附,回收率可达97.12%,表明螺旋藻的吸附速率快、吸附和回收效果较为理想.研究表明:该过程的吸附动力学行为符合伪二级动力学模型(R~2>0.99),主要受化学吸附控制,且吸附等温线能较好用Langmuir方程进行模拟(R~2>0.9),属于自发吸热的吸附过程.
In this study, the adsorption characteristics of spirulina to rare earth erbium ions(Er~(3+)) in simulated mine wastewater werestudied. The effects of different parameters on the adsorption process were investigated: including p H value of the treated solution, dose ofspirulina, initial concentration of erbium ion, adsorption time, and so on. The adsorption kinetics and thermodynamic laws were discussedin detail with different adsorption models, such as Freundlich, Langmuir and Redlich-Peterson, Dubin-Radushkevich andpseudo first-order,pseudo-second-orderand elovich, intra-particle diffusion model. The mechanisms governing the adsorption process were morecomprehensively understood. The results indicated that the adsorption rate of spirulinato rare earth erbium ions in simulated minewastewater was 90.73% when the p H value of treated liquid was 5, dosage of spirulina was 2.0 g/L, temperature of adsorption was 298 Kand initial Er~(3+) concentration was 100 mg/L. Rate of desorption of Yb~(3+) from spirulina reached to 97.12% when it was eluted with 5 m L of 0.5 mol/L HNO_3 solution after 60 min. The results showed that the adsorption rate of spirulina was fast, and the adsorption and recovery of Yb~(3+) were ideal. At the same time, the results indicated that the adsorption kinetics of this processis in good agreement with thepseudo-second-order kinetic model(R~2>0.99); the adsorption process was mainly controlled by chemical adsorption;a better adsorptionisotherm can be simulated by the Langmuir equation(R~2>0.9);the adsorption is a spontaneous endothermic process.
In this study, the adsorption characteristics of spirulina to rare earth erbium ions(Er~(3+)) in simulated mine wastewater werestudied. The effects of different parameters on the adsorption process were investigated: including p H value of the treated solution, dose ofspirulina, initial concentration of erbium ion, adsorption time, and so on. The adsorption kinetics and thermodynamic laws were discussedin detail with different adsorption models, such as Freundlich, Langmuir and Redlich-Peterson, Dubin-Radushkevich andpseudo first-order,pseudo-second-orderand elovich, intra-particle diffusion model. The mechanisms governing the adsorption process were morecomprehensively understood. The results indicated that the adsorption rate of spirulinato rare earth erbium ions in simulated minewastewater was 90.73% when the p H value of treated liquid was 5, dosage of spirulina was 2.0 g/L, temperature of adsorption was 298 Kand initial Er~(3+) concentration was 100 mg/L. Rate of desorption of Yb~(3+) from spirulina reached to 97.12% when it was eluted with 5 m L of 0.5 mol/L HNO_3 solution after 60 min. The results showed that the adsorption rate of spirulina was fast, and the adsorption and recovery of Yb~(3+) were ideal. At the same time, the results indicated that the adsorption kinetics of this processis in good agreement with thepseudo-second-order kinetic model(R~2>0.99); the adsorption process was mainly controlled by chemical adsorption;a better adsorptionisotherm can be simulated by the Langmuir equation(R~2>0.9);the adsorption is a spontaneous endothermic process.
引文
[1]Du X,Graedel T E.Global In-Use Stocks of the Rare Earth Elements:A First Estimate[J].Environmental Science&Technology,2011,45(9):4096-4101.
[2]李元杰,王森杰,张敏,等.土壤和地下水污染的监控自然衰减修复技术研究进展[J].中国环境科学,2018,38(3):1185-1193.Li Yuan-jie,Wang Sen-jie,Zhang Min,et al.Research progress of monitored natural attenuation remediation technology for soil and groundwater pollution[J].China Environmental Science,2018,38(3):1185-1193.
[3]Zhang K,Kleit A N,Nieto A.An economics strategy for criticalityApplication to rare earth element Yttrium in new lighting technology and its sustainable availability[J].Renewable&Sustainable Energy Reviews,2017,77:899-915.
[4]Bilal M,Shah J A,Ashfaq T,et al.Waste biomass adsorbents for copper removal from industrial wastewater--a review[J].Journal of Hazardous Materials,2013,263(24):322-333.
[5]甘莉,刘贺琴,王清萍,等.氧化亚铁硫杆菌生物浸出污泥中的重金属离子[J].中国环境科学,2014,34(10):2617-2623.Gan Li,Liu He-qin,Wang Qing-ping,et al.Bioleaching of heavy metals in sewage sludge using Acidithiobacillus ferrooxidans[J].China Environmental Science,2014,34(10):2617-2623.
[6]孙福红,廖海清,陈艳卿,等.微囊藻对锑(V)生物吸附作用研究[J].中国环境科学,2016,36(11):3383-3389.Sun Fu-hong,Liao Hai-qing,Chen Yan-qing,et al.Studies on biosorption of antimony(V)by Microcystis[J].China Environmental Science,2016,36(11):3383-3389.
[7]徐淑霞,张世敏,王慧琴,等.黄孢原毛平革菌210对稀土离子的吸附作用研究[J].中国稀土学报,2010,28(2):225-231.Xu Shu-xia,Zhang Shi-min,Wang Hui-qin,et al.Adsorption of rare earth ions by phanerochaete chrysosporium[J].Journal of the Chinese Rare Earth Society,2010,28(2):225-231.
[8]Wang J L,Chen C.Biosorbents for heavy metals removal and their future.[J].Biotechnology Advances,2009,27(2):195-226.
[9]Nourbakhsh M,Sag Y,?zer D,et al.A comparative study of various biosorbents for removal of chromium(VI)ions from industrial waste waters[J].Process Biochemistry,1994,29(1):1-5.
[10]程明焱,刘和连,吴伟明,等.稀土分析检测方法标准述评[J].有色金属科学与工程,2012,(4):108-114.Cheng Ming-yan,Liu He-lian,Wu Wei-ming,et al.Review on the standards for rare earth analysis and testing methods[J].Nonferrous Metals Science and Engineering,2012,(4):108-114.
[11]Hang T T,Vu N D,Matsukawa M,et al.Heavy metal biosorption from aqueous solutions by algae inhabiting rice paddies in Vietnam[J].Journal of Environmental Chemical Engineering,2016,4(2):2529-2535.
[12]Guiza S.Biosorption of heavy metal from aqueous solution using cellulosic waste orange peel[J].Ecological Engineering,2017,99:134-140.
[13]Deniz F,Karabulut A.Biosorption of heavy metal ions by chemically modified biomass of coastal seaweed community:Studies on phycoremediation system modeling and design[J].Ecological Engineering,2017,106:101-108.
[14]He J,Chen J P.A comprehensive review on biosorption of heavy metals by algal biomass:materials,performances,chemistry,and modeling simulation tools.[J].Bioresource Technology,2014,160(6):67-78.
[15]?elekli A,Bozkurt H.Bio-sorption of cadmium and nickel ions using Spirulina platensis:Kinetic and equilibrium studies[J].Desalination,2011,275(1):141-147.
[16]Rezaei H.Biosorption of chromium by using Spirulina,sp[J].Arabian Journal of Chemistry,2016,9(6):846-853.
[17]Azimi G,Dhiman R,Kwon H M,et al.Hydrophobicity of rare-earth oxide ceramics[J].Nature Materials,2013,12(4):315-320.
[18]Shu Q,Tang G,Liu F,et al.Study on the preparation,characterization of a novel solid Lewis acid Al3+-SO42-/MWCNTs catalyst and its catalytic performance for the synthesis of biodiesel via esterification reaction of oleic acid and methanol[J].Fuel,2017,209:290-298.
[19]Liu B,Huang Y.Polyethyleneimine modified eggshell membrane as a novel biosorbent for adsorption and detoxification of Cr(VI)from water[J].Journal of Materials Chemistry,2011,21(43):17413-17418.
[20]S?nmezay A,?ncel M S,Bekta?N.Adsorption of lead and cadmium ions from aqueous solutions using manganoxide minerals[J].Transactions of Nonferrous Metals Society of China,2012,22(12):3131-3139.
[21]Qiu H,Lu L V,Pan B C,et al.Critical review in adsorption kinetic models[J].Journal of Zhejiang University-Science A(Applied Physics&Engineering),2009,10(5):716-724.
[2]李元杰,王森杰,张敏,等.土壤和地下水污染的监控自然衰减修复技术研究进展[J].中国环境科学,2018,38(3):1185-1193.Li Yuan-jie,Wang Sen-jie,Zhang Min,et al.Research progress of monitored natural attenuation remediation technology for soil and groundwater pollution[J].China Environmental Science,2018,38(3):1185-1193.
[3]Zhang K,Kleit A N,Nieto A.An economics strategy for criticalityApplication to rare earth element Yttrium in new lighting technology and its sustainable availability[J].Renewable&Sustainable Energy Reviews,2017,77:899-915.
[4]Bilal M,Shah J A,Ashfaq T,et al.Waste biomass adsorbents for copper removal from industrial wastewater--a review[J].Journal of Hazardous Materials,2013,263(24):322-333.
[5]甘莉,刘贺琴,王清萍,等.氧化亚铁硫杆菌生物浸出污泥中的重金属离子[J].中国环境科学,2014,34(10):2617-2623.Gan Li,Liu He-qin,Wang Qing-ping,et al.Bioleaching of heavy metals in sewage sludge using Acidithiobacillus ferrooxidans[J].China Environmental Science,2014,34(10):2617-2623.
[6]孙福红,廖海清,陈艳卿,等.微囊藻对锑(V)生物吸附作用研究[J].中国环境科学,2016,36(11):3383-3389.Sun Fu-hong,Liao Hai-qing,Chen Yan-qing,et al.Studies on biosorption of antimony(V)by Microcystis[J].China Environmental Science,2016,36(11):3383-3389.
[7]徐淑霞,张世敏,王慧琴,等.黄孢原毛平革菌210对稀土离子的吸附作用研究[J].中国稀土学报,2010,28(2):225-231.Xu Shu-xia,Zhang Shi-min,Wang Hui-qin,et al.Adsorption of rare earth ions by phanerochaete chrysosporium[J].Journal of the Chinese Rare Earth Society,2010,28(2):225-231.
[8]Wang J L,Chen C.Biosorbents for heavy metals removal and their future.[J].Biotechnology Advances,2009,27(2):195-226.
[9]Nourbakhsh M,Sag Y,?zer D,et al.A comparative study of various biosorbents for removal of chromium(VI)ions from industrial waste waters[J].Process Biochemistry,1994,29(1):1-5.
[10]程明焱,刘和连,吴伟明,等.稀土分析检测方法标准述评[J].有色金属科学与工程,2012,(4):108-114.Cheng Ming-yan,Liu He-lian,Wu Wei-ming,et al.Review on the standards for rare earth analysis and testing methods[J].Nonferrous Metals Science and Engineering,2012,(4):108-114.
[11]Hang T T,Vu N D,Matsukawa M,et al.Heavy metal biosorption from aqueous solutions by algae inhabiting rice paddies in Vietnam[J].Journal of Environmental Chemical Engineering,2016,4(2):2529-2535.
[12]Guiza S.Biosorption of heavy metal from aqueous solution using cellulosic waste orange peel[J].Ecological Engineering,2017,99:134-140.
[13]Deniz F,Karabulut A.Biosorption of heavy metal ions by chemically modified biomass of coastal seaweed community:Studies on phycoremediation system modeling and design[J].Ecological Engineering,2017,106:101-108.
[14]He J,Chen J P.A comprehensive review on biosorption of heavy metals by algal biomass:materials,performances,chemistry,and modeling simulation tools.[J].Bioresource Technology,2014,160(6):67-78.
[15]?elekli A,Bozkurt H.Bio-sorption of cadmium and nickel ions using Spirulina platensis:Kinetic and equilibrium studies[J].Desalination,2011,275(1):141-147.
[16]Rezaei H.Biosorption of chromium by using Spirulina,sp[J].Arabian Journal of Chemistry,2016,9(6):846-853.
[17]Azimi G,Dhiman R,Kwon H M,et al.Hydrophobicity of rare-earth oxide ceramics[J].Nature Materials,2013,12(4):315-320.
[18]Shu Q,Tang G,Liu F,et al.Study on the preparation,characterization of a novel solid Lewis acid Al3+-SO42-/MWCNTs catalyst and its catalytic performance for the synthesis of biodiesel via esterification reaction of oleic acid and methanol[J].Fuel,2017,209:290-298.
[19]Liu B,Huang Y.Polyethyleneimine modified eggshell membrane as a novel biosorbent for adsorption and detoxification of Cr(VI)from water[J].Journal of Materials Chemistry,2011,21(43):17413-17418.
[20]S?nmezay A,?ncel M S,Bekta?N.Adsorption of lead and cadmium ions from aqueous solutions using manganoxide minerals[J].Transactions of Nonferrous Metals Society of China,2012,22(12):3131-3139.
[21]Qiu H,Lu L V,Pan B C,et al.Critical review in adsorption kinetic models[J].Journal of Zhejiang University-Science A(Applied Physics&Engineering),2009,10(5):716-724.