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环氧氯丙烷改性橙皮对含Pb2+废水的吸附研究 预览 被引量:1

Study on the Adsorption of Pb~(2+) Waste Water with Epichlorohydrin Modified Orange Peel
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摘要 为了将橙皮加以资源化利用,使用氢氧化钠和环氧氯丙烷对橙皮进行改性制备改性橙皮吸附剂,通过SEM分析了改性前后橙皮表面形貌,通过单因素试验考察了改性橙皮对废水中Pb2+的吸附效果,并通过正交试验对吸附条件进行优化。SEM分析表明,改性后橙皮表面发生了显著变化。极差分析结果表明,在影响吸附效果的因素中,Pb2+初始浓度对吸附效果影响最为显著,其次分别是溶液pH值、吸附剂投加量和环氧氯丙烷加入量。最佳吸附条件为:Pb2+溶液初始浓度为350mg/L,pH值为6,吸附剂投加量为6g/L,环氧氯丙烷加入量为5ml,对Pb2+的吸附量为25.13mg/g。该研究为橙皮的综合利用和含Pb2+废水的处理研究提供了理论参考。 In order to make resource utilization of orange peel,the orange peel is modified with epichlorohydrin and sodium hydroxide for a modified adsorption of orange peel.SEM is used to characterize the surface morphology of orange peel before and after modification.The adsorption of modified orange peel was studied through single factor test and the adsorption conditions for Pb~(2+) by the modified orange peel were optimized through the orthogonal test.SEM analysis indicated that the surface of orange peel after modification changed a lot.The single factor test is used to investigate the effect of adsorption of Pb~(2+) and its adsorption conditions are optimized through orthogonal test.SEM analysis indicates that obvious change is taken place on the surface of modified orange peel,followed by pH,absorbent dosage and epichlorohydrin dosage.The optimum adsorption conditions are initial concentration of350mg/L,pH of 6,absorbent dosage of 6g/L,and epichlorohydrin dosage of 5ml,under the condiitions,the adsorption capacity of Pb~(2+) is 25.13mg/g.The study provides a theoretical reference for comprehensive utilization of orange peel and the treatment on Pb~(2+) in the waste water.
作者 杨为森 简绍菊 叶名伟 Yang Weisen;Jian Shaoju;Ye Mingwei;Fujian Key Laboratory of Eco-Industrial Green Technology (Wuyi University),Fujian Bamboo Engineering Technology Research Center (Wuyi University),Wuyi University;
出处 《长江大学学报:自然科学版》 CAS 2017年第5期11-15,共5页
基金 福建省科技厅区域重大项目(2012Y3008) 福建省科技厅资助项目(JK2011058) 武夷学院校级科研基金项目(XL201402)
关键词 橙皮 改性 生物吸附剂 Pb2+溶液 吸附 orange peel biological adsorbent Pb2+ solution adsorption
作者简介 杨为森(1983-),男,博士生,讲师,现主要从事纳米材料和有机合成方面的研究工作,yangweisen@126.com.
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