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《工程(英文)》 >> 2017年 第3卷 第3期 doi: 10.1016/J.ENG.2017.03.024

香蕉假茎作为吸附剂用于水溶液中铅离子去除的条件优化、动力学与吸附平衡研究

a Department of Chemical Engineering, Siddaganga Institute of Technology, Tumkur, Karnataka 572 103, India
b Department of Biotechnology, Siddaganga Institute of Technology, Tumkur, Karnataka 572 103, India
c Department of Industrial Chemistry, Addis Ababa Science and Technology University, Addis Ababa 16417, Ethiopia

收稿日期: 2017-01-02 修回日期: 2017-05-09 录用日期: 2017-05-13 发布日期: 2017-06-13

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摘要

香蕉假茎粉末等天然吸附剂对于去除废水中的重金属元素具有非常重要的作用。现有的去除重金属元素的常规方法难以满足水资源循环和化学工业的需求。本文论证了利用天然物质处理废水的可能性。利用环境扫描电子显微镜(ESEM) 和傅里叶变换红外(FTIR) 光谱学分析方法,研究了香蕉假茎粉末吸附铅离子前后的变化。实验采用批处理方法研究了水溶液中铅离子去除的效果。通过改变初始pH 值、吸附剂用量、初始铅离子浓度、吸附时间等参数,研究了吸附动力学的影响。结果表明,在水溶液pH 值为5.5 时,香蕉假茎粉末达到零电荷点。采用吸附等温线和动力学模型分析实验数据,采用朗缪尔吸附等温式拟合铅离子在香蕉假茎粉末表面的吸附作用。实验表明,香蕉假茎粉末对铅离子的吸附量为34.21 mg·g−1,与拟二级动力学模型相匹配。此外,采用响应面分析法确定了铅离子吸附的最佳条件,铅离子的去除率高达89%。

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参考文献

[ 1 ] Ekebafe LO, Ekebafe MO, Erhuaga GO, Oboigba FM. Effect of reaction conditions on the uptake of selected heavy metals from aqueous media using composite from renewable materials. Am J Pol Sci 2012;2(4):67–72 链接1

[ 2 ] Regmi P, Garcia Moscoso JL, Kumar S, Cao X, Mao J, Schafran G. Removal of copper and cadmium from aqueous solution using switchgrass biochar produced via hydrothermal carbonization process. J Environ Manage 2012;109:61–9 链接1

[ 3 ] Nguyen TAH, Ngo HH, Guo WS, Zhang J, Liang S, Yue QY, et al.Applicability of agricultural waste and by-products for adsorptive removal of heavy metals from wastewater. Bioresour Technol 2013;148:574–85 链接1

[ 4 ] Bhattacharyya KG, Gupta SS. Adsorption of a few heavy metals on natural and modified kaolinite and montmorillonite: A review. Adv Colloid Interface Sci 2008;140(2):114–31 链接1

[ 5 ] Nadeema M, Shabbira M, Abdullahb MA, Shahc SS, McKay G. Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents. Chem Eng J 2009;148(2–3):365–70 链接1

[ 6 ] Karnitz O Jr, Gurgel LV, de Melo JC, Botaro VR, Melo TM, de Freitas Gil RP, et al.Adsorption of heavy metal ion from aqueous single metal solution by chemically modified sugarcane bagasse. Bioresour Technol 2007;98(6):1291–7 链接1

[ 7 ] Miretzky P, Cirelli AF. Cr(VI) and Cr(III) removal from aqueous solution by raw and modified lignocellulosic materials: A review. J Hazard Mater 2010;180(1–3):1–19 链接1

[ 8 ] Yao Y, Gao B, Inyang M, Zimmerman AR, Cao X, Pullammanappallil P, et al.Biochar derived from anaerobically digested sugar beet tailings: Characterization and phosphate removal potential. Bioresour Technol 2011;102(10):6273–8 链接1

[ 9 ] Wang J, Chen C. Biosorbents for heavy metals removal and their future. Biotechnol Adv 2009;27(2):195–226 链接1

[10] Onundi YB, Mamun AA, Khatib MF, Ahmed YM. Adsorption of copper, nickel and lead ions from synthetic semiconductor industrial wastewater by palm shell activated carbon. Int J Environ Sci Technol 2010;7(4):751–8 链接1

[11] Mohan D, Sarswat A, Ok YS, Pittman CU Jr. Organic and inorganic contaminants removal from water with biochar, a renewable, low cost and sustainable adsorbent—A critical review. Bioresour Technol 2014;160:191–202 链接1

[12] Fu F, Wang Q. Removal of heavy metal ions from wastewaters: A review. J Environ Manage 2011;92(3):407–18 链接1

[13] Mussatto SI, Fernandes M, Rocha GJ, Orf?o JJ, Teixeira JA, Roberto IC. Production, characterization and application of activated carbon from brewer’s spent grain lignin. Bioresour Technol 2010;101(7):2450–7 链接1

[14] Mohan D, Pittman CU Jr. Arsenic removal from water/wastewater using adsorbents—A critical review. J Hazard Mater 2007;142(1–2):1–53 链接1

[15] Imyim A, Prapalimrungsi E. Humic acids removal from water by aminopropyl functionalized rice husk ash. J Hazard Mater 2010;184(1–3):775–81 链接1

[16] Gregorio C. Recent developments in polysaccharide-based materials used as adsorbents in wastewater treatment. Prog Polym Sci 2005;30(1):38–70 链接1

[17] Ofomaja AE, Ho YS. Effect of temperatures and pH on methyl violet biosorption by Mansonia wood sawdust. Bioresour Technol 2008;99(13):5411–7 链接1

[18] Rabindra PD, Kedar NG, Katsutoshi I. Adsorptive separation of heavy metals from an aquatic environment using orange waste. Hydrometallurgy 2005;79(3–4):182–90.

[19] Pereira ALS, do Nascimento DM, Souza MM, Cassales AR, Morais JPS, Paula RCM, et al.Banana (Musa sp. cv. Pacovan) pseudostem fibers are composed of varying lignocellulosic composition throughout the diamete r. BioResources 2014;9(4):7749–63 链接1

[20] Suresh Jeyakumar RP, Chandrasekaran V. Adsorption of lead (II) ions by activated carbons prepared from marine green algae: Equilibrium and kinetics studies. Int J Indust Chem 2014;5:2 链接1

[21] Ogunleye OO, Ajala MA, Agarry SE. Evaluation of biosorptive capacity of banana (Musa paradisiaca) stalk for lead (II) removal from aqueous solution. J Environ Prot (Irvine Calif) 2014;5(15):1451–65 链接1

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