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Advancing ion-exchange membranes to ion-selective membranes: principles, status, and opportunities

《环境科学与工程前沿（英文）》 2023年第17卷第2期 doi: 10.1007/s11783-023-1625-0

摘要：

● IEM ion/ion selectivities of charge, valence, & specific ion are critically assessed.

关键词： Ion-exchange membranes Selectivity Separations

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Control strategies for disinfection byproducts by ion exchange resin, nanofiltration and their sequential

《环境科学与工程前沿（英文）》 2023年第17卷第10期 doi: 10.1007/s11783-023-1725-x

摘要：

● Effects of AER adsorption and NF on DBP precursors, DBPs, and TOX were examined.

关键词： Disinfection byproducts Control Anion exchange resin Nanofiltration Cytotoxicity

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Electro-assisted regeneration of ion exchange resins

LIU Zhigang, WANG Ying, LI Yansheng, CHANG Hui

《环境科学与工程前沿（英文）》 2008年第2卷第4期页码 410-414 doi: 10.1007/s11783-008-0069-x

摘要： Electro-assisted regeneration (EAR) for the mixed bed of strongly acidic cation and weakly basic anion exchange resins with the Al(OH) suspension in a three-compartment cell was investigated. The desalination experiments were carried out to evaluate the characteristic of the regenerated mixed resins. Experimental results showed that the efficiency of resin regeneration was strictly dependent on the voltage, regeneration time, and feed regenerant flow rate. The amount of the effluent reached 50 times the volume of the resins bed, and the conductivity was less than 1.0 ?s/cm. Compared to the conventional ER, the total effluent volume of EAR was about 1000 mL more than that of ER under the same conditions, and the outlet conductivity was significantly lower. The desalination and regeneration reaction mechanisms of the mixed resins indicated the regeneration efficiency of resin with Al(OH) as the regenerant was much higher than that with HO.

关键词： effluent volume acidic three-compartment weakly exchange

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Condensation of phenol and acetone on a modified macroreticular ion exchange resin catalyst

Baohe WANG, Lili WANG, Jing ZHU, Shuang CHEN, Hao SUN

《化学科学与工程前沿（英文）》 2013年第7卷第2期页码 218-225 doi: 10.1007/s11705-013-1330-9

摘要： Macroreticular ion exchange resin catalysts were prepared by suspension polymerization, and then modified by alkylmercaptoamines. The modified catalysts were characterized by N adsorption/desorption measurements, scanning electron microscopy and differential scanning calorimetry. Key factors such as the mercaptan content, the degree of crosslinking and the structures of the promoters were investigated for the synthesis of Bisphenol A (BPA). At optimal conditions, the macroreticular ion exchange resin catalysts modified by alkylmercaptoamines showed high catalytic activity and selectivity for BPA synthesis.

关键词： macroreticular ion exchange resin catalysts suspension polymerization Bisphenol A

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Salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for

《环境科学与工程前沿（英文）》 2023年第17卷第2期 doi: 10.1007/s11783-023-1616-1

摘要：

● Present a general concept called “salinity exchange”.

关键词： Desalination Potable water reuse Ion-exchange membrane Salinity gradient energy Wastewater discharge

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新型通用离子交换膜的研究与实践

汪耀明,吴亮,徐铜文

《中国工程科学》 2014年第16卷第12期页码 76-86

摘要：

基于离子交换膜的电膜技术，由于其独特的离子传递特性，可以进行离子物系的分离分级，在清洁生产、节能减排、环境保护、能量转换等方面有着广泛的应用前景。然而，目前国内相关均相离子膜产品尚处于起步阶段，以日本为首的国家对我国进行相关技术封锁和价格垄断。正是基于这样的产业背景和现实意义，开发出新型的均相离子膜制备路线尤为重要。本课题组提出了一种简单而通用的侧链型离子化芳香族聚合物的合成方法，即“离子单体聚酰基化”均相离子交换膜制备路线，并通过ATRP法来设计离子交换膜的主链憎水、侧链亲水的接枝结构，通过对接枝密度和接枝长度进行调节，实现对膜性能的调控，以满足不同的应用过程对膜性能的要求。此种均相离子交换膜的制备工艺及产业化生产攻关，可以打破以日本为首的国家对我国离子膜产品的技术封锁，实现具有我国自主知识产权的离子膜技术的产业化。制备条件温和、制备工艺简单、快捷，而且整个过程没有传统方法中常用的季铵化或磺化步骤，有效地简化工艺和降低环境污染，可用于扩散渗析、普通电渗析以及双极膜电渗析过程对高性能离子交换膜材料的需求。该系列离子交换膜在特种废水处理、有机酸生产、氨基酸分离纯化、重金属废水处理等诸多领域得到了广泛的使用，均取得了较为满意的使用效果。

关键词：离子交换膜电渗析有机酸氨基酸重金属废水

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离子分离用电荷Janus结构单价选择性阳离子交换膜 Article

王文广, 张艳秋, 杨晓彬, 孙海翔, 吴亚东, 邵路

《工程（英文）》 2023年第25卷第6期页码 204-213 doi: 10.1016/j.eng.2021.09.020

摘要：

单价选择性阳离子交换膜（M-CEMs）已被广泛应用于环境修复和能量收集等领域，例如，从卤水和海水中提取Na⁺或Li⁺。然而，由于膜结构和材料的限制，M-CEMs存在渗透选择性低的问题。在此，我们提出了一种简单的方法以构建具有电荷Janus结构的新型M-CEMs，该结构由荷正电的均苯三甲酸/聚乙烯亚胺选择层和荷负电的商业阳离子交换膜（CEM）组成。选择性电渗析（SED）分析结果表明，具有电荷Janus结构的M-CEMs可以有效抑制多孔阳离子交换膜中存在的阴离子迁移问题，因而使这种具有电荷Janus结构的M-CEMs具有较高的渗透选择性和总阳离子通量。与最先进的单价选择性阳离子交换膜的分离性能相比，具有电荷Janus结构的M-CEMs对于Na⁺/Mg²⁺的最高渗透选择性可以达到145.77，这超过了目前单价选择性阳离子交换膜性能的“上限”，且对于Li⁺/Mg²⁺也具有优异的渗透选择性（14.11），在离子分离领域具有巨大的应用潜力。这项研究可以为具有电荷Janus结构的M-CEMs的设计提供新的见解，并应用于不同的环境和能源领域。

关键词：单价选择性阳离子交换膜电荷Janus结构选择性电渗析渗透选择性 “上限” 离子分离

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Removal of Zn

Feng XUE, Beicheng XIA, Rongrong YING, Shili SHEN, Peng ZHAO

《环境科学与工程前沿（英文）》 2013年第7卷第4期页码 531-538 doi: 10.1007/s11783-013-0506-3

摘要： Biosorption of Zn from aqueous solutions by biomass of was investigated. The removal rates of Zn by under different parameters (e.g., solution pH, bio-sorbent dosage and initial Zn concentration) were studied. The inhibition of ’s biosorption by anionic ligands EDTA (Ethylene Diamine Tetraacetic Acid), acetate and citrate) implied that EDTA and citrate might be used as eluting reagents. Regular and simultaneous solution pH change and light metal ions release after biosorption indicated that an ion exchange mechanism was involved. From FT-IR (Fourier Transform Infrared) spectroscopy, the main functional groups participated in biosorption were found. Biosorption of Zn by could be well described by the Freundlich and Langmuir models. In conclusion, the biomass of showed high potential for the treatment of wastewater containing Zn .

关键词： biosorption Agaricus bisporus zinc ion exchange FT-IR isotherms

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Structural engineering of transition metal-based nanostructured electrocatalysts for efficient water splitting

Yueqing Wang, Jintao Zhang

《化学科学与工程前沿（英文）》 2018年第12卷第4期页码 838-854 doi: 10.1007/s11705-018-1746-3

摘要： Water splitting is a highly promising approach for the generation of sustainable, clean hydrogen energy. Tremendous efforts have been devoted to exploring highly efficient and abundant metal oxide electrocatalysts for oxygen evolution and hydrogen evolution reactions to lower the energy consumption in water splitting. In this review, we summarize the recent advances on the development of metal oxide electrocatalysts with special emphasis on the structural engineering of nanostructures from particle size, composition, crystalline facet, hybrid structure as well as the conductive supports. The special strategies relay on the transformation from the metal organic framework and ion exchange reactions for the preparation of novel metal oxide nanostructures with boosting the catalytic activities are also discussed. The fascinating methods would pave the way for rational design of advanced electrocatalysts for efficient water splitting.

关键词： water splitting structure engineering metal organic framework ion exchange synergistic effect hybrid structure conductive supports

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Purification and crystallization of xylitol from fermentation broth of corncob hydrolysates

Jinchao WEI, Qipeng YUAN, Tianxin WANG, Le WANG,

《化学科学与工程前沿（英文）》 2010年第4卷第1期页码 57-64 doi: 10.1007/s11705-009-0295-1

摘要： Xylitol, a five-carbon sugar alcohol, is a valuable sugar substitute, and widely used in the pharmaceutical, odontological and food industry due to its interesting properties. In the past decades, the xylitol industry has grown rapidly and more attention has been focused on xylitol purification, which possesses an important proportion of the whole industry. In our paper, the purification and crystallization of xylitol fermentation broth by biotechnology using corncob hydrolysates as substance were studied. An initial xylitol fermentation broth was decolored with activated carbon (1% M-1, 60°C, 165rpm), desalted with a combination of two ion-exchange resins (732 and D301), and residual sugars were separated with UBK-555(Ca). Then the solution was vacuum-concentrated up to supersaturation (750g/L xylitol). After adding 1% xylitol crystal seeds, the supersaturated solution was cooled to −20°C for 48h. The crystalline xylitol of a regular tetrahedral shape with purity 95% and crystallization yield 60.2% was obtained from the clarified xylitol fermentation broth. An intact, economical and environmental-friendly route of purification and crystallization of xylitol from fermentation of corncob hydrolysates was obtained, and its experimental procedure and data provided a sound basis for large-scale industrial production.

关键词： ion-exchange activated supersaturation tetrahedral substitute

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含铜黄连素制药废水预处理与资源化技术研究

曾萍,宋永会,崔晓宇,段亮,邱光磊,肖书虎,马印臣,单永平

《中国工程科学》 2013年第15卷第3期页码 88-94

摘要：

针对化学合成制药含铜黄连素废水特点，设计了铁碳微电解和离子交换组合工艺为预处理工艺，开展了小试与中试试验研究。结果表明，采用铁碳微电解池-离子交换柱组合工艺连续处理初始CODCr浓度为60 000~80 000 mg/L、黄连素浓度为1 700~1 900 mg/L、Cu2+浓度为12 000~18 000 mg/L的含铜黄连素制药废水，小试试验对黄连素和Cu2+的去除率都在99.0 %以上，出水黄连素和Cu2+在1.0 mg/L和0.5 mg/L以下。中试试验对CODCr的去除率在44.0 %以上，Cu2+的去除率超过79.0 %。处理每吨水可回收12～13 kg铜。该工艺有较好的废水预处理效果，实现了金属铜资源化回收，可有效减少对后续废水生化处理工艺的压力。

关键词：化学合成制药废水铁碳微电解离子交换柱黄连素含铜废水预处理

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Nexus between polymer support and metal oxide nanoparticles in hybrid nanosorbent materials (HNMs) for sorption/desorption of target ligands

Ryan C. SMITH,Jinze LI,Surapol PADUNGTHON,Arup K. SENGUPTA

《环境科学与工程前沿（英文）》 2015年第9卷第5期页码 929-938 doi: 10.1007/s11783-015-0795-9

摘要： Metal oxide nanoparticles like hydrated ferric oxide (HFO) or hydrated zirconium oxide (HZrO) are excellent sorbents for environmentally significant ligands like phosphate, arsenic, or fluoride, present at trace concentrations. Since the sorption capacity is surface dependent for HFO and HZrO, nanoscale sizes offer significant enhancement in performance. However, due to their miniscule sizes, low attrition resistance, and poor durability they are unable to be used in typical plug-flow column setups. Meanwhile ion exchange resins, which have no specific affinity toward anionic ligands, are durable and chemically stable. By impregnating metal oxide nanoparticles inside a polymer support, with or without functional groups, a hybrid nanosorbent material (HNM) can be prepared. A HNM is durable, mechanically strong, and chemically stable. The functional groups of the polymeric support will affect the overall removal efficiency of the ligands exerted by the Donnan Membrane Effect. For example, the removal of arsenic by HFO or the removal of fluoride by HZrO is enhanced by using anion exchange resins. The HNM can be precisely tuned to remove one type of contaminant over another type. Also, the physical morphology of the support material, spherical bead versus ion exchange fiber, has a significant effect on kinetics of sorption and desorption. HNMs also possess dual sorption sites and are capable of removing multiple contaminants, namely, arsenate and perchlorate, concurrently.

关键词： ion exchange sorption arsenic perchlorate fluoride

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The removal of trimethoprim and sulfamethoxazole by a high infiltration rate artificial composite soil treatment system

Qinqin Liu,Miao Li,Fawang Zhang,Hechun Yu,Quan Zhang,Xiang Liu

《环境科学与工程前沿（英文）》 2017年第11卷第2期 doi: 10.1007/s11783-017-0920-z

摘要： Artificial composite soil treatment system with the high infiltration rate (1.394 m·d ) had a good removal efficiency of TMP (80%–90%) and SMX (60%–70%). The removal mechanism of TMP and SMX was mainly sorption and was related with hydrogeochemical process. Sulfamethoxzole (SMX) and trimethoprim (TMP), two combined-using sulfonamide antibiotics, have gained increasing attention in the surface water, groundwater and the drinking water because of the ecological risk. The removal of TMP and SMX by artificial composite soil treatment system (ACST) with different infiltration rates was systematically investigated using K , Na , Ca , Mg hydrogeochemical indexes. Batch experiments showed that the sorption onto the low-cost and commercially available clay ceramsites was effective for the removal of SMX and TMP from water. The column with more silty clay at high infiltration rate (1.394 m·d ) had removal rates of 80% to 90% for TMP and 60% to 70% for SMX. High SMX and TMP removal rates had a higher effluent concentration of K , Ca and Mg and had a lower effluent Na concentration. Removal was strongly related to sorption. The results showed that the removal of SMX and TMP was related to hydrogeochemical processes. In this study, ACST is determined to be applicable to the drinking water plants.

关键词： Trimethoprim Sulfamethoxazole Artificial composite soil treatment Hydrogeochemical processes Ion exchange

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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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Heat, mass, and work exchange networks

Zhiyou CHEN, Jingtao WANG

《化学科学与工程前沿（英文）》 2012年第6卷第4期页码 484-502 doi: 10.1007/s11705-012-1221-5

摘要： Heat (energy), water (mass), and work (pressure) are the most fundamental utilities for operation units in chemical plants. To reduce energy consumption and diminish environment hazards, various integration methods have been developed. The application of heat exchange networks (HENs), mass exchange networks (MENs), water allocation heat exchange networks (WAHENs) and work exchange networks (WENs) have resulted in the significant saving of energy and water. This review presents the main works related to each network. The similarities and differences of these networks are also discussed. Through comparing and discussing these different networks, this review inspires researchers to propose more efficient and convenient methods for the design of existing exchange networks and even new types of networks including multi-objective networks for the system integration in order to enhance the optimization and controllability of processes.

关键词： process system engineering integration methods heat exchange network mass exchange network work exchange network