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膜分离 6

渗透汽化 5

绿色化工 4

反渗透 3

纳滤 3

聚偏氟乙烯 3

双极板 2

反渗透膜 2

吸附 2

气体分离 2

氧化石墨烯 2

水处理 2

水安全 2

油水分离 2

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Bioinspired cellulose-based membranes in oily wastewater treatment

《环境科学与工程前沿(英文)》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1515-2

摘要:

• Cellulose-based membrane separates oily wastewater mimicking the living things.

关键词: Cellulose     Bioinspired membrane     Superhydrophobic surface     Underwater superoleophobic surface     Oil-water separation    

Learning from biological attachment devices: applications of bioinspired reversible adhesive methods

《机械工程前沿(英文)》 2022年 第17卷 第3期 doi: 10.1007/s11465-022-0699-x

摘要: Many organisms have attachment organs with excellent functions, such as adhesion, clinging, and grasping, as a result of biological evolution to adapt to complex living environments. From nanoscale to macroscale, each type of adhesive organ has its own underlying mechanisms. Many biological adhesive mechanisms have been studied and can be incorporated into robot designs. This paper presents a systematic review of reversible biological adhesive methods and the bioinspired attachment devices that can be used in robotics. The study discussed how biological adhesive methods, such as dry adhesion, wet adhesion, mechanical adhesion, and sub-ambient pressure adhesion, progress in research. The morphology of typical adhesive organs, as well as the corresponding attachment models, is highlighted. The current state of bioinspired attachment device design and fabrication is discussed. Then, the design principles of attachment devices are summarized in this article. The following section provides a systematic overview of climbing robots with bioinspired attachment devices. Finally, the current challenges and opportunities in bioinspired attachment research in robotics are discussed.

关键词: adhesion     bioinspired attachment     biomimetic gripper     climbing robot    

仿生与生物启发膜的研究进展

彭冬冬,贺明睿,杨 昊,张 蓓,高博鑫,范 琳,丁 鹤,南延虎,潘福生,苏延磊,吴 洪,姜忠义

《中国工程科学》 2014年 第16卷 第12期   页码 102-112

摘要:

仿生与生物启发的思想和策略在众多基础与工程科学领域取得了重要进展。研究者们通过借鉴和模仿自然界中生物材料多样的组成、精巧的结构、温和的形成过程以及强大的功能,设计制备了多种高性能膜材料,并将其应用于水处理、气体分离、有机小分子液体混合物分离等领域,显示出良好的应用前景。仿生和生物启发膜主要是以细胞膜、荷叶和贻贝等为仿生原型,以生物矿化、生物黏合和自组装等为工具,以绿色、高效、节能为目标,在资源、能源高效利用和可持续发展等方面会发挥越来越大的作用,并逐步发展成为膜和膜过程领域的重要分支。本文将对仿生和生物启发膜的研究进展进行简要总结,重点介绍抗污染膜、杂化膜和复合膜的制备与应用。

关键词: 仿生与生物启发膜     膜和膜过程     表面偏析     仿生矿化     仿生黏合    

Bioinspired C/TiO

Jian LI, Likun GAO, Wentao GAN

《农业科学与工程前沿(英文)》 2017年 第4卷 第4期   页码 459-464 doi: 10.15302/J-FASE-2017178

摘要: butterfly wings were replicated by a sol-gel method and a calcination process, which could take advantage of the spatial features of the wing to enhance their photocatalytic properties. Hierarchical structures of -carbon-TiO (PP-C-TiO ) were confirmed by SEM observations. By applying the Brunauer-Emmett-Teller method, it was concluded that in the presence of wings the product shows higher surface area with respect to the pure TiO made in the absence of the wings. The higher specific surface area is also beneficial for the improvement of photocatalytic property. Furthermore, the conduction and valence bands of the PP-C-TiO are more negative than the corresponding bands of pure TiO , allowing the electrons to migrate from the valence band to the conduction band upon absorbing visible light. That is, the presence of C originating from wings in the PP-C-TiO could extend the photoresponsiveness to visible light. This strategy provides a simple method to fabricate a high-performance photocatalyst, which enables the simultaneous control of the morphology and carbon element doping.

关键词: bioinspired     butterfly wings     C/TiO2     photocatalyst     visible light    

Bioinspired and biomimetic membranes for water purification and chemical separation: A review

《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1412-8

摘要:

•The history of biological and artificial water channels is reviewed.

关键词: Aquaporins     Artificial water channels     Biomimetic membranes     Chemical separation and water purification    

Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

SUI Pengzhe, WEN Xianghua, HUANG Xia

《环境科学与工程前沿(英文)》 2007年 第1卷 第3期   页码 362-367 doi: 10.1007/s11783-007-0062-9

摘要: In this study, ultrasound was used to control the membrane fouling online in an anaerobic membrane bioreactor (AMBR). Short-term running experiments were carried out under different operating conditions to explore feasible ultrasonic parameters. The experimental results indicated that when the crossflow velocity was more than 1.0 m/s, membrane fouling could be controlled effectively only by hydrodynamic methods without ultrasound. When ultrasound was applied, an ultrasonic power range of 60–150 W was suitable for the membrane fouling control in the experimental system. The experimental results showed that the membrane fouling was controlled so well that membrane filtration resistance (Σ) could stay at 5 × 10 m for more than a week with the crossflow velocity of 0.75 m/s, which equaled the effect of crossflow velocity of more than 1.0 m/s without ultrasound.

关键词: membrane filtration     filtration resistance     different     feasible ultrasonic     anaerobic membrane    

Novel membrane separation technologies and membrane processes

Yanying Wei, Gongping Liu, Jianquan Luo, Libo Li, Zhi Xu

《化学科学与工程前沿(英文)》 2021年 第15卷 第4期   页码 717-719 doi: 10.1007/s11705-021-2053-y

A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

《环境科学与工程前沿(英文)》 2023年 第17卷 第10期 doi: 10.1007/s11783-023-1729-6

摘要:

● Fundamentals of membrane fouling are comprehensively reviewed.

关键词: Membrane fouling     Thermodynamic mechanism     XDLVO theory     Flory-Huggins theory     Fouling migration    

A review on membrane distillation in process engineering: design and exergy equations, materials and

《化学科学与工程前沿(英文)》 2022年 第16卷 第5期   页码 592-613 doi: 10.1007/s11705-021-2105-3

摘要: One of the problems that most afflicts humanity is the lack of clean water. Water stress, which is the pressure on the quantity and quality of water resources, exists in many places throughout the World. Desalination represents a valid solution to the scarcity of fresh water and several technologies are already well applied and successful (such as reverse osmosis), producing about 100 million m3·d−1 of fresh water. Further advances in the field of desalination can be provided by innovative processes such as membrane distillation. The latter is of particular interest for the treatment of waste currents from conventional desalination processes (for example the retentate of reverse osmosis) as it allows to desalt highly concentrated currents as it is not limited by concentration polarization phenomena. New perspectives have enhanced research activities and allowed a deeper understanding of mass and heat transport phenomena, membrane wetting, polarization phenomena and have encouraged the use of materials particularly suitable for membrane distillation applications. This work summarizes recent developments in the field of membrane distillation, studies for module length optimization, commercial membrane modules developed, recent patents and advancement of membrane material.

关键词: membrane distillation     recent developments     heat and mass transfer     wetting     membrane material    

Pilot plants of membrane technology in industry: Challenges and key learnings

Colin A. Scholes

《化学科学与工程前沿(英文)》 2020年 第14卷 第3期   页码 305-316 doi: 10.1007/s11705-019-1860-x

摘要: Membrane technology holds great potential in gas separation applications, especially carbon dioxide capture from industrial processes. To achieve this potential, the outputs from global research endeavours into membrane technologies must be trialled in industrial processes, which requires membrane-based pilot plants. These pilot plants are critical to the commercialization of membrane technology, be it as gas separation membranes or membrane gas-solvent contactors, as failure at the pilot plant level may delay the development of the technology for decades. Here, the author reports on his experience of operating membrane-based pilot plants for gas separation and contactor configurations as part of three industrial carbon capture initiatives: the Mulgrave project, H3 project and Vales Point project. Specifically, the challenges of developing and operating membrane pilot plants are presented, as well as the key learnings on how to successfully manage membrane pilot plants to achieve desired performance outcomes. The purpose is to assist membrane technologists in the carbon capture field to achieve successful outcomes for their technology innovations.

关键词: membrane gas separation     membrane contactors     carbon capture     pilot plants     key learnings    

Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

《化学科学与工程前沿(英文)》 2022年 第16卷 第5期   页码 634-660 doi: 10.1007/s11705-021-2107-1

摘要: Discharged hospital wastewater contains various pathogenic microorganisms, antibiotic groups, toxic organic compounds, radioactive elements, and ionic pollutants. These contaminants harm the environment and human health causing the spread of disease. Thus, effective treatment of hospital wastewater is an urgent task for sustainable development. Membranes, with controllable porous and nonporous structures, have been rapidly developed for molecular separations. In particular, membrane bioreactor (MBR) technology demonstrated high removal efficiency toward organic compounds and low waste sludge production. To further enhance the separation efficiency and achieve material recovery from hospital waste streams, novel concepts of MBRs and their applications are rapidly evolved through hybridizing novel membranes (non hydrophilic ultrafiltration/microfiltration) into the MBR units (hybrid MBRs) or the MBR as a pretreatment step and integrating other membrane processes as subsequent secondary purification step (integrated MBR-membrane systems). However, there is a lack of reviews on the latest advancement in MBR technologies for hospital wastewater treatment, and analysis on its major challenges and future trends. This review started with an overview of main pollutants in common hospital wastewater, followed by an understanding on the key performance indicators/criteria in MBR membranes (i.e., solute selectivity) and processes (e.g., fouling). Then, an in-depth analysis was provided into the recent development of hybrid MBR and integrated MBR-membrane system concepts, and applications correlated with wastewater sources, with a particular focus on hospital wastewaters. It is anticipated that this review will shed light on the knowledge gaps in the field, highlighting the potential contribution of hybrid MBRs and integrated MBR-membrane systems toward global epidemic prevention.

关键词: membrane technology     membrane bioreactor     hospital wastewater     hybrid MBR     integrated MBR-membrane system    

Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

《化学科学与工程前沿(英文)》 2023年 第17卷 第10期   页码 1606-1615 doi: 10.1007/s11705-022-2200-0

摘要: The increasing applications of seawater desalination technology have led to the wide usage of polyamide reverse osmosis membranes, resulting in a large number of wasted reverse osmosis membranes. In this work, the base nonwoven layer of the wasted reverse osmosis membrane was successfully modified into the hydrophobic membrane via surface deposition strategy including TiO2 and 1H,1H,2H,2H-perfluorooctyltrichlorosilane (PFOTS), respectively. Various techniques were applied to characterize the obtained membranes, which were then used to separate the oil–water system. The optimally modified membrane displayed good hydrophobicity with a contact angle of 135.2° ± 0.3°, and its oil–water separation performance was as high as 97.8%. After 20 recycle tests, the oil–water separation performance remained more than 96%, which was attributed to the film adhesion of the anchored TiO2 and PFOTS layer on the surface. This work might provide a new avenue for recycling the wasted reverse osmosis membrane used in oily wastewater purification.

关键词: oil–water separation     wasted reverse osmosis membrane     hydrophobic modification    

Aggravation of membrane fouling and methane leakage by a three-phase separator in an external anaerobicceramic membrane bioreactor

Chao Pang, Chunhua He, Zhenhu Hu, Shoujun Yuan, Wei Wang

《环境科学与工程前沿(英文)》 2019年 第13卷 第4期 doi: 10.1007/s11783-019-1131-6

摘要:

The existence of three-phase separator did not affect COD removal in the EAnCMBR.

The existence of three-phase separator aggravated methane leakage of EAnCMBR.

The existence of three-phase separator aggravated membrane fouling rate of EAnCMBR.

Start-up of EAnCMBR equipped three-phase separator was slightly delayed.

关键词: Anaerobic membrane bioreactor     Three-phase separator     Membrane fouling     Methane leakage     Sludge property    

Recent advances in membrane bioreactor technology for wastewater treatment in China

Xia HUANG, Kang XIAO, Yuexiao SHEN

《环境科学与工程前沿(英文)》 2010年 第4卷 第3期   页码 245-271 doi: 10.1007/s11783-010-0240-z

摘要: Since the introduction of the membrane bioreactor (MBR) in China in the early 1990s, remarkable progress has been achieved on the research and application of this technology. China has now become one of the most active fields in the world in this regard. This review outlines the development of MBR-based processes in China and their performance of treating municipal and industrial wastewaters. Since membrane fouling is a critical operational problem with MBR processes, this paper also proposes updated understanding of fouling mechanisms and strategies of fouling control, which are mainly compiled from publications of Chinese researchers. As for the commercial application of MBR in the country, the latest statistics of large-scale MBR plants (>10000 m·d) are provided, and the growth trend of total treatment capacity as well as its driving force is analyzed.

关键词: membrane bioreactor (MBR)     municipal wastewater treatment     industrial wastewater treatment     membrane fouling     commercial application     China    

Ceramic membrane fouling mechanisms and control for water treatment

《环境科学与工程前沿(英文)》 2023年 第17卷 第10期 doi: 10.1007/s11783-023-1726-9

摘要:

● The fouling is summarized based on ceramic membrane performance and pollutants.

关键词: Ceramic membrane     Fouling model     Fouling control    

标题 作者 时间 类型 操作

Bioinspired cellulose-based membranes in oily wastewater treatment

期刊论文

Learning from biological attachment devices: applications of bioinspired reversible adhesive methods

期刊论文

仿生与生物启发膜的研究进展

彭冬冬,贺明睿,杨 昊,张 蓓,高博鑫,范 琳,丁 鹤,南延虎,潘福生,苏延磊,吴 洪,姜忠义

期刊论文

Bioinspired C/TiO

Jian LI, Likun GAO, Wentao GAN

期刊论文

Bioinspired and biomimetic membranes for water purification and chemical separation: A review

期刊论文

Membrane fouling control by ultrasound in an anaerobic membrane bioreactor

SUI Pengzhe, WEN Xianghua, HUANG Xia

期刊论文

Novel membrane separation technologies and membrane processes

Yanying Wei, Gongping Liu, Jianquan Luo, Libo Li, Zhi Xu

期刊论文

A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

期刊论文

A review on membrane distillation in process engineering: design and exergy equations, materials and

期刊论文

Pilot plants of membrane technology in industry: Challenges and key learnings

Colin A. Scholes

期刊论文

Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes

期刊论文

Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

期刊论文

Aggravation of membrane fouling and methane leakage by a three-phase separator in an external anaerobicceramic membrane bioreactor

Chao Pang, Chunhua He, Zhenhu Hu, Shoujun Yuan, Wei Wang

期刊论文

Recent advances in membrane bioreactor technology for wastewater treatment in China

Xia HUANG, Kang XIAO, Yuexiao SHEN

期刊论文

Ceramic membrane fouling mechanisms and control for water treatment

期刊论文