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| 1 | 改性活性炭除亚砷酸盐的性能研究显示文摘制备了2种负载铁锰氧化物的改性活性炭(FM-GAC-1、FM-GAC-2)并研究其对水中的亚砷酸盐的去除性能.考察了2种改性活性炭除三价砷的吸附等温线、反应动力学及pH、温度、水中共存离子对其去除三价砷的影响,发现FM-GAC-1和FM-GAC-2对三价砷均有较好的去除效果,吸附容量分别为32.37、26.67 mg.g-1.吸附速率符合拟二级反应动力学,化学反应控制过程是改性活性炭除砷的限速步骤.pH值偏酸性有利于吸附的进行,温度升高,吸附容量有所下降,该吸附过程是自发的放热过程.同时,水体中的共存阴离子在其浓度值为三价砷的200倍时,SiO32-、PO32-、NO3-对FM-GAC-1吸附三价砷有明显影响;SiO32-、CO32-对FM-GAC-2吸附三价砷有显著影响.总体上讲,FM-GAC-1较FM-GAC-2有更为优异的去除三价砷性能. | 刘振中 邓慧萍 詹健 王晓玭 | 2009 | 环境科学2009，30，3： | 15 |
| 2 | 应用正交设计与BP网络优化制备改性活性炭显示文摘采用FeCl2·4H2O和KMnO4对活性炭进行改性.为获取高效的三价砷去除率,运用正交实验设计结合BP神经网络优化活性炭的改性方案.以FeCl2·4H2O和KMnO4的摩尔总浓度、FeCl2·4H2O和KMnO4物质的量比、水浴温度、干燥温度为正交实验设计因子,每个因子各取5个水平,以三价砷的去除率为目标因子,编制4因素5水平正交设计表.结合BP网络强大的函数拟合功能,以正交设计表中4因素为网络输入层,以三价砷去除率为网络输出层,建立BP神经网络模型,并通过该模型进行预测和优选,得到最佳的活性炭改性方案.即FeCl2·4H2O和KMnO4的摩尔总浓度为0.12mol·L-1,物质的量比为3∶1,水浴温度45℃,干燥温度190℃.此时三价砷的去除率为0.765,与网络预测值0.788相差3.00%.运用X射线衍射及SEM电镜扫描技术对最佳条件下的改性活性炭进行表面性能研究,并测定活性炭表面的铁锰的负载量,为进一步深入研究打下基础. | 刘振中 邓慧萍 | 2010 | 同济大学学报(自然科学版)2010，38，5： | 5 |
| 3 | 水洗和酸洗蛭石样本的离子吸附性能比较分析显示文摘分析比较了水洗蛭石和酸洗蛭石样本吸附Pb2+、Cd2+、Zn2+的差异。试验结果表明,水洗和酸洗样本中测试离子的吸附存在明显的离子浓度和吸附剂浓度效应。水洗样本测试离子的吸附量显著高于酸洗样本的吸附量,其原因是酸洗样本体系存在大量的H+离子参与吸附竞争,降低了吸附剂的离子吸附容量。在水洗和酸洗蛭石体系中,测试离子被吸附的毫克量差异显著,顺序为Pb2+>Cd2+≥Zn2+。水洗蛭石体系中所有测试离子的去除率都很高,说明水洗蛭石样本可作为构建人工湿地吸附缓冲系统的基质填料。 | 彭婧 吴晓芙 李芸 姚咏歌 刘毅霖 | 2012 | 中南林业科技大学学报2012，32，12： | 3 |
| 4 | Arsenate Removal by Iron-Modified Ion Exchange Fiber显示文摘The adsorption characteristics of arsenate on ion exchange fiber(IEF) and iron-modified ion exchange fiber(FeIEF) were evaluated.Batch adsorption experiments were conducted to study the arsenate adsorption effect by varying contact time,pH,and coexisting anions.Adsorption capacity was found to increase by increasing the contact time and acidic conditions were favorable for arsenate adsorption on IEF and Fe-IEF.Arsenate adsorption data were better consistent with Freundlich equation than Langmuir equation.The maximum monolayer adsorption capacities were 285 and 333 mg/g at 25℃ for IEF and Fe-IEF respectively.The adsorption kinetics was found to follow the pseudo-first-order kinetic model.The existence of HCO 3-,PO34-,SO24-,SiO23-,and NO 3-decreased the arsenate adsorption capacity on IEF.Cl-and F-had little influence on it.When FeIEF was adopted,the effects of HCO 3-,SO24-,Cl-,SiO23-,and NO 3-were negligible,while PO43-could still markedly decrease the adsorption capacity and F-had inhibitory effect on arsenate adsorption.Fe-IEF can be used as a highly selective and efficient sorbent for removal of arsenate from aqueous solutions. | 刘振中 邓慧萍 | 2011 | Journal of Donghua University(English Edition)2011，28，1： | 0 |
| 5 | Influence of Operating Conditions on the Removal Cd Ions from Aqueous Media by Adsorption Using Chlamydomonas Reinhardtii显示文摘Chlamydomonas reinhardtii(C.reinhardtii) was used to study adsorption of cadmium(Cd) from aqueous media within various experimental conditions.Results showed that the adsorption process was very fast,with most of the adsorption occurring within 30 min of contact time and the equilibrium state was reached in about 60 min.The adsorption ability of the algae increases with the increasing adsorptions sites on cells.Maximum adsorption was observed at the initial Cd concentration of 100 mg/L and pH 6.0. The adsorption was markedly inhibited in the presence of calcium and magnesium ions at 10 mM and the Cd removal efficiency was reduced by 16.54%and 14.99%respectively.This study would be a finding of note with regard to practical wastewater treatment. | Jiang Yongbin Zhu Yi Ji Hongbing | 2010 | Chinese Journal of Population,Resources and Environment2010，8，2： | 0 |
| 6 | Chemisorption and Physical Adsorption Roles in Cadmium Biosorption by Chlamydomonas Reinhardtii显示文摘The aim of this study was to investigate the mechanism of cadmium (Cd) adsorbed by microalgae Chlamydomonas reinhardtii (C.reinhardtii). The kinetic and adsorption isotherm of the process could be well described by mathematical models. Chemical modification experiments and Fourier transform infrared spectra indicated that carboxyl and amine groups were the important functional groups for adsorption of Cd. The maximum contribution of physical adsorption in the overall adsorption process was evaluated as 5.5%. These results indicated that chemisorption was the dominating mechanism of Cd biosorption by C.reinhardtii. | Jiang Yongbin Huo Xiangyuan Zhu Yi Ji Hongbing | 2010 | Chinese Journal of Population,Resources and Environment2010，8，3： | 0 |
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