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吸附 11

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Cesium removal from radioactive wastewater by adsorption and membrane technology

《环境科学与工程前沿（英文）》 2024年 第18卷 第3期 doi: 10.1007/s11783-024-1798-1

摘要：

● Removal of cesium from radioactive wastewater is still a challenging.

关键词： Cesium     Adsorption     Membrane separation     Advanced liquid processing system     Fukushima nuclear accident    

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膜吸附和膜吸收研究进展

林立刚,叶卉,赵莉芝

《中国工程科学》 2014年 第16卷 第12期   页码 59-66

摘要：

近年来，膜集成过程备受研究者关注，探究传统分离技术与膜技术的结合，充分发挥膜的高效率、易于在线放大等优势，以期促进膜集成过程以低成本实现放大应用。其中，吸附膜、吸收技术兼具膜技术和吸附、吸收技术的优势，在提纯、分离、净化等众多场合获得了日益广泛的应用。本文针对膜吸附、吸收方面的研究，阐述该膜过程研究进展和发展趋势，为相关领域研究人员提供借鉴。

关键词： 膜     膜吸附     膜吸收    

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removal of phosphate from wastewater of sea cucumber aquaculture for microalgae culture using a new adsorption-membrane

《环境科学与工程前沿（英文）》 2023年 第17卷 第10期 doi: 10.1007/s11783-023-1720-2

摘要：

● A new adsorption-membrane separation strategy is used for phosphate removal.

关键词： Adsorption-membrane     Low-concentration phosphate     Zr-modified-bentonite     Recycle     Microalgal culture    

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Pressure swing adsorption/membrane hybrid processes for hydrogen purification with a high recovery

Baojun Li,Gaohong He,Xiaobin Jiang,Yan Dai,Xuehua Ruan

《化学科学与工程前沿（英文）》 2016年 第10卷 第2期   页码 255-264 doi: 10.1007/s11705-016-1567-1

摘要： Hydrogen was recovered and purified from coal gasification-produced syngas using two kinds of hybrid processes: a pressure swing adsorption (PSA)-membrane system (a PSA unit followed by a membrane separation unit) and a membrane-PSA system (a membrane separation unit followed by a PSA unit). The PSA operational parameters were adjusted to control the product purity and the membrane operational parameters were adjusted to control the hydrogen recovery so that both a pure hydrogen product (>99.9%) and a high recovery (>90%) were obtained simultaneously. The hybrid hydrogen purification processes were simulated using HYSYS and the processes were evaluated in terms of hydrogen product purity and hydrogen recovery. For comparison, a PSA process and a membrane separation process were also used individually for hydrogen purification. Neither process alone produced high purity hydrogen with a high recovery. The PSA-membrane hybrid process produced hydrogen that was 99.98% pure with a recovery of 91.71%, whereas the membrane-PSA hybrid process produced hydrogen that was 99.99% pure with a recovery of 91.71%. The PSA-membrane hybrid process achieved higher total H recoveries than the membrane-PSA hybrid process under the same H recovery of membrane separation unit. Meanwhile, the membrane-PSA hybrid process achieved a higher total H recovery (97.06%) than PSA-membrane hybrid process (94.35%) at the same H concentration of PSA feed gas (62.57%).

关键词： hydrogen purification     PSA     membrane separation     hybrid process    

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Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

《化学科学与工程前沿（英文）》 2020年 第14卷 第4期   页码 673-687 doi: 10.1007/s11705-019-1800-9

摘要： Adsorptive polyethesulfone (PES) membranes were prepared by intercalation of powder activated carbon (PAC) with and without functionalization. Accordingly, PAC was aminated with 1,5-diamino-2-methylpentane, and the physicochemical properties of the functionalized PAC were analyzed. Intercalation of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membrane (AC-NH ) from 52.6% to 92.5% and from 22.6 nm to 3.5 nm, respectively. The effect of temperature on the performance of the modified membranes was monitored by the flux and chemical oxygen demand (COD) removal of leachate. At ambient temperature, the COD removal of the neat, AC-containing, and AC-NH membranes was 47%, 52%, and 58.5%, respectively. A similar increment was obtained for the membrane flux, which was due to the synergistic effect of the high porosity and large number of hydrophilic functional groups. The experimental leachate adsorption data were analyzed by Langmuir, Freundlich, and Dubinin- Radushkevich isotherm models. For all membranes, the significant thermodynamic parameters ( , , and ) were calculated and compared. The isosteric heat of adsorption was lower than 80 kJ∙mol , indicating that the interaction between the membranes and the leachate is mainly physical, involving weak van der Waals forces.

关键词： amine functionality     nanoporous membrane     adsorption isotherm     thermodynamic parameters     landfill leachate    

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Ion-imprinted silica gel and its dynamic membrane for nickel ion removal from wastewaters

Jiehui Zeng, Jianxian Zeng, Hu Zhou, Guoqing Liu, Zhengqiu Yuan, Jian Jian

《化学科学与工程前沿（英文）》 2020年 第14卷 第6期   页码 1018-1028 doi: 10.1007/s11705-020-1915-z

摘要： An ion-imprinted sorbent (IIP) was prepared by using Ni as template, 3-[2-(2-aminoethylamino) ethylamino] propyl-trimethoxysilane as functional monomer, and silica gel as carrier. The adsorption performance of IIP towards Ni was investigated. IIP showed a higher adsorption capacity than that of non-imprinted sorbent, and it also exhibited high selectivity for Ni in the presence of Cu and Zn ions. Then, IIP was used to form a dynamic membrane onto the surface of ceramic membrane for treatment of electroplating wastewater containing Ni . Compared with ceramic membrane, IIP dynamic membrane had much higher steady membrane flux, and also rejected Ni to obtain a lower concentration of Ni in the permeate fluid. Perhaps it is suitable for future practice applications.

关键词： ion-imprinted     nickel ion     dynamic membrane     adsorption    

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Facile fabrication of dolomite-doped biochar/bentonite for effective removal of phosphate from complex wastewaters

《环境科学与工程前沿（英文）》 2023年 第17卷 第6期 doi: 10.1007/s11783-023-1671-7

摘要：

● Dolomite-doped biochar/bentonite was synthesized for phosphate removal.

关键词： Biochar-bentonite composite     Dolomite doping     Phosphate adsorption     Polymeric matrix membrane     Adsorption-filtration dual functions     Low-concentration phosphate    

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Recent advances in antimony removal using carbon-based nanomaterials: A review

《环境科学与工程前沿（英文）》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1482-7

摘要：

• The synthesis and physicochemical properties of various CNMs are reviewed.

关键词： Antimony     Carbon nanomaterials     Adsorption     Membrane separation    

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Transmembrane transport of polycyclic aromatic hydrocarbons by bacteria and functional regulation of membrane

Hongqi Wang, Ruhan Jiang, Dekang Kong, Zili Liu, Xiaoxiong Wu, Jie Xu, Yi Li

《环境科学与工程前沿（英文）》 2020年 第14卷 第1期 doi: 10.1007/s11783-019-1188-2

摘要： Explaintheadsorption, uptake and transmembrane transport of PAHs by bacteria. Analyze functional regulation of membrane proteins inthe transmembrane transport. Proteomics technology such as iTRAQ labeling was used to access expressed proteins. Single cell analysis technology wereused to study the morphological structure. In recent years, increasing research has been conducted on transmembrane transport processes and the mechanisms behind the microbial breakdown of polycyclic aromatic hydrocarbons (PAHs), including the role of membrane proteins in transmembrane transport and the mode of transmission. This article explains the adsorption, uptake and transmembrane transport of PAHs by bacteria, the regulation of membrane protein function during the transmembrane transport. There are three different regulation mechanisms for uptake, depending on the state and size of the oil droplets relative to the size of the microbial cells, which are (i) direct adhesion, (ii) emulsification and pseudosolubilization, and (iii) interfacial uptake. Furthermore, two main transmembrane transport modes are introduced, which are (i) active transport and (ii) passive uptake and active efflux mechanism. Meanwhile, introduce the proteomics and single cell analysis technology used to address these areas of research, such as Isobaric tags for relative and absolute quantitation (iTRAQ) technology and Nano Secondary ion mass spectrometry (Nano-SIMS). Additionally, analyze the changes in morphology and structure and the characteristics of microbial cell membranes in the process of transmembrane transport. Finally, recognize the microscopic mechanism of PAHs biodegradation in terms of cell and membrane proteins are of great theoretical and practical significance for understanding the factors that influence the efficient degradation of PAHs contaminants in soil and for remediating the PAHs contamination in this area with biotechnology.

关键词： Polycyclic aromatic hydrocarbons     Transmembrane transport     Adsorption and uptake of hydrocarbons     Proteomics     Functional regulation of membrane protein     Single cell analysis technology    

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Ionic liquid modified Pt/C electrocatalysts for cathode application in proton exchange membrane fuel

Huixin Zhang, Jinying Liang, Bangwang Xia, Yang Li, Shangfeng Du

《化学科学与工程前沿（英文）》 2019年 第13卷 第4期   页码 695-701 doi: 10.1007/s11705-019-1838-8

摘要： The modification of Pt/C catalyst by using ionic liquids to improve their catalyst activities has been reported by many researchers, but their practical behavior in operating fuel cells is still unknown. In this work, we study the ionic liquid modified Pt/C nanoparticle catalysts within cathodes for proton exchange membrane fuel cells. The influence of the ionic liquid amount, adsorption times and dispersing solvents are investigated. The experiment results show the best performance enhancement is achieved through two-time surface modification with 2 wt-% ionic liquid solution. The mechanisms are explored with the attribution to the high oxygen solubility in the ionic liquid enabling an improved oxygen diffusion in micropores and to good hydrophobicity facilitating water expelling from the active sites in fuel cell operation.

关键词： ionic liquid     PEMFC     electrode     oxygen reduction reaction     electrocatalyst     adsorption    

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DK型纳滤膜对水中微量邻苯二甲酸酯的吸附及截留特性

金叶,吴礼光,张林

《中国工程科学》 2014年 第16卷 第7期   页码 36-41

摘要：

邻苯二甲酸酯（PAEs）是一类典型的环境激素，对人体健康具有较大的危害。本文采用DK型纳滤膜去除水中微量邻苯二甲酸酯，分析了水中微量邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)、邻苯二甲酸正二丁酯(DNBP)和邻苯二甲酸异二丁酯(DIBP)等在DK型纳滤膜表面的吸附行为，考察了4 种邻苯二甲酸酯的辛醇/水分配系数(logKow)和相对分子质量(Mw)对其在DK型纳滤膜表面的吸附和膜的截留特性的影响。结果表明Freundlich 吸附方程能较好地描述4 种邻苯二甲酸酯在DK型纳滤膜表面的动态吸附行为；DK型纳滤膜对水中微量邻苯二甲酸酯的截留特性表现为膜面吸附作用和膜孔筛分效应，吸附平衡后的截留机理取决于膜孔的筛分效应，DK型纳滤膜对DMP、DEP、DNBP、DIBP的截留率分别为55 %、78 %、96 %和96.8 % (0.5 MPa，30 ℃，DMP、DEP、DNBP、DIBP浓度均为300 μg/L)，表明DK型纳滤膜能高效去除水中的DNBP和DIBP。

关键词： 邻苯二甲酸酯     纳滤     吸附     截留    

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Role of membrane and compound properties in affecting the rejection of pharmaceuticals by different RO

Yang-ying Zhao, Fan-xin Kong, Zhi Wang, Hong-wei Yang, Xiao-mao Wang, Yuefeng F. Xie, T. David Waite

《环境科学与工程前沿（英文）》 2017年 第11卷 第6期 doi: 10.1007/s11783-017-0975-x

摘要： This study was conducted to assess the merits and limitations of various high-pressure membranes, tight nanofiltration (NF) membranes in particular, for the removal of trace organic compounds (TrOCs). The performance of a low-pressure reverse osmosis (LPRO) membrane (ESPA1), a tight NF membrane (NF90) and two loose NF membranes (HL and NF270) was compared for the rejection of 23 different pharmaceuticals (PhACs). Efforts were also devoted to understand the effect of adsorption on the rejection performance of each membrane. Difference in hydrogen bond formation potential (HFP) was taken into consideration. Results showed that NF90 performed similarly to ESPA1 with mean rejection higher than 95%. NF270 outperformed HL in terms of both water permeability and PhAC rejection higher than 90%. Electrostatic effects were more significant in PhAC rejection by loose NF membranes than tight NF and LPRO membranes. The adverse effect of adsorption on rejection by HL and ESPA1 was more substantial than NF270 and NF90, which could not be simply explained by the difference in membrane surface hydrophobicity, selective layer thickness or pore size. The HL membrane had a lower rejection of PhACs of higher hydrophobicity (log D>0) and higher HFP (>0.02). Nevertheless, the effects of PhAC hydrophobicity and HFP on rejection by ESPA1 could not be discerned. Poor rejection of certain PhACs could generally be explained by aspects of steric hindrance, electrostatic interactions and adsorption. High-pressure membranes like NF90 and NF270 have a high promise in TrOC removal from contaminated water.

关键词： Trace organic compounds (TrOCs)     Nanofiltration (NF)     Adsorption     Membrane properties     Water treatment    

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Carbon dioxide sequestration in petrochemical industries with the aim of reduction in greenhouse gas emissions

Maryam Takht Ravanchi, Saeed Sahebdelfar, Farnaz Tahriri Zangeneh

《化学科学与工程前沿（英文）》 2011年 第5卷 第2期   页码 173-178 doi: 10.1007/s11705-010-0562-1

摘要： The mitigation of greenhouse gas emissions to acceptable levels is arguably the greatest environmental challenge these days. Vast utilization of fossil fuels and forest destruction are main causes of CO increase in the atmosphere. Carbon dioxide sequestration that consists of separation, transportation and utilization or storage of CO , is one way for reduction of its emission, in which the most costly section is separation. Different methods can be used for carbon dioxide separation such as absorption, membrane separation, adsorption and cryogenic distillation. Economic, technical and environmental issues should be considered in selection of the technology for particular application. Carbon dioxide concentration, temperature, pressure and flow rate are influential operating parameters in the selection of the appropriate separation method. Nowadays, absorption is the worldwide industrial separation method. New researches are focused on developing new stable solvents and efficient column configuration with suitable internals to minimize pressure drop. Membrane separation and adsorption (PSA type) are other long-term alternatives that can increase separation efficiency and decrease separation cost. The level of energy consumption in various separation methods are in the order: chemical absorption>physical absorption>membrane separation. Because of high investment costs, current separation technologies are suitable for large concentrated sources. In the present paper, different processes for carbon dioxide separation are investigated and compared. Available technologies and commercial plants for CO sequestration are provided.

关键词： carbon dioxide     greenhouse effect     separation     membrane     absorption     adsorption    

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重金属废水处理技术概述

刘敏敏,于水利,侯立安

《中国工程科学》 2014年 第16卷 第7期   页码 100-105

摘要：

水体重金属污染正成为全世界最严重的环境问题之一，多种多样的技术已被用于重金属废水的处理。本文综述了近年来用于重金属废水处理的常见工艺，包括化学沉淀法、混凝-絮凝、电化学法、膜分离、离子交换法和吸附法等，并对相关工艺进行了评述。

关键词： 重金属废水     膜分离     离子交换     吸附    

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Occurrence of bisphenol A in surface and drinking waters and its physicochemical removal technologies

Liping LIANG,Jing ZHANG,Pian FENG,Cong LI,Yuying HUANG,Bingzhi DONG,Lina LI,Xiaohong GUAN

《环境科学与工程前沿（英文）》 2015年 第9卷 第1期   页码 16-38 doi: 10.1007/s11783-014-0697-2

摘要： Bisphenol A (BPA), an endocrine disrupting compound, has caused wide public concerns due to its wide occurrence in environment and harmful effects. BPA has been detected in many surface waters and drinking water with the maximum concentrations up to tens of μg·L . The physicochemical technology options in eliminating BPA can be divided into four categories: oxidation, advanced oxidation, adsorption and membrane filtration. Each removal option has its own limitation and merits in removing BPA. Oxidation and advanced oxidation generally can remove BPA efficiently while they also have some drawbacks, such as high cost, the generation of a variety of transformation products that are even more toxic than the parent compound and difficult to be mineralized. Only few advanced oxidation methods have been reported to be able to mineralize BPA completely. Therefore, it is important not only to identify the major initial transformation products but also to assess their estrogenic activity relative to the parent compounds when oxidation methods are employed to remove BPA. Without formation of harmful by-products, physical separation methods such as activated carbon adsorption and membrane processes are able to remove BPA in water effluents and thus have potential as BPA removal technologies. However, the necessary regeneration of activated carbon and the low BPA removal efficiency when the membrane became saturated may limit the application of activated carbon adsorption and membrane processes for BPA removal. Hybrid processes, e.g. combining adsorption and biologic process or combining membrane and oxidation process, which can achieve simultaneous physical separation and degradation of BPA, will be highly preferred in future.

关键词： Bisphenol A (BPA)     occurrence     conventional oxidation     advanced oxidation     adsorption     membrane filtration    

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标题 作者 时间 类型 操作

Cesium removal from radioactive wastewater by adsorption and membrane technology

期刊论文

膜吸附和膜吸收研究进展

林立刚,叶卉,赵莉芝

期刊论文

removal of phosphate from wastewater of sea cucumber aquaculture for microalgae culture using a new adsorption-membrane

期刊论文

Pressure swing adsorption/membrane hybrid processes for hydrogen purification with a high recovery

Baojun Li,Gaohong He,Xiaobin Jiang,Yan Dai,Xuehua Ruan

期刊论文

Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

期刊论文

Ion-imprinted silica gel and its dynamic membrane for nickel ion removal from wastewaters

Jiehui Zeng, Jianxian Zeng, Hu Zhou, Guoqing Liu, Zhengqiu Yuan, Jian Jian

期刊论文

Facile fabrication of dolomite-doped biochar/bentonite for effective removal of phosphate from complex wastewaters

期刊论文

Recent advances in antimony removal using carbon-based nanomaterials: A review

期刊论文

Transmembrane transport of polycyclic aromatic hydrocarbons by bacteria and functional regulation of membrane

Hongqi Wang, Ruhan Jiang, Dekang Kong, Zili Liu, Xiaoxiong Wu, Jie Xu, Yi Li

期刊论文

Ionic liquid modified Pt/C electrocatalysts for cathode application in proton exchange membrane fuel

Huixin Zhang, Jinying Liang, Bangwang Xia, Yang Li, Shangfeng Du

期刊论文

DK型纳滤膜对水中微量邻苯二甲酸酯的吸附及截留特性

金叶,吴礼光,张林

期刊论文

Role of membrane and compound properties in affecting the rejection of pharmaceuticals by different RO

Yang-ying Zhao, Fan-xin Kong, Zhi Wang, Hong-wei Yang, Xiao-mao Wang, Yuefeng F. Xie, T. David Waite

期刊论文

Carbon dioxide sequestration in petrochemical industries with the aim of reduction in greenhouse gas emissions

Maryam Takht Ravanchi, Saeed Sahebdelfar, Farnaz Tahriri Zangeneh

期刊论文

重金属废水处理技术概述

刘敏敏,于水利,侯立安

期刊论文

Occurrence of bisphenol A in surface and drinking waters and its physicochemical removal technologies

Liping LIANG,Jing ZHANG,Pian FENG,Cong LI,Yuying HUANG,Bingzhi DONG,Lina LI,Xiaohong GUAN

期刊论文