Download or read book Improved Extraction of Heavy Metal Ions Using Membrane Technology written by Jianying Xu and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigates tha application of polymer membranes in industrial wastewater treatment. Several novel membrane systems have been developed. The new systems overcome the problems of low extractant capacity and slow rate of extraction of the traditional membrane system. These new systems offer significant scope for the treatment of industrial wastewater containing heavy metal ions.

Download or read book Improving Extraction of Heavy Metal Ions Using Membrane Technology written by Jianying Xu and published by . This book was released on 2004 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigates tha application of polymer membranes in industrial wastewater treatment. Several novel membrane systems have been developed. The new systems overcome the problems of low extractant capacity and slow rate of extraction of the traditional membrane system. These new systems offer significant scope for the treatment of industrial wastewater containing heavy metal ions.

Download or read book Membrane Technologies for Heavy Metal Removal from Water written by Juhana Jaafar and published by CRC Press. This book was released on 2024-02-12 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers lucid treatment of fundamental concepts related to potential applications and prospects of different membranes for wastewater decontamination by removing heavy metals. Divided into four sections, it provides an overview of different sources of water contamination, their impacts on human health and the environment, and compares traditional methods used to nullify these impacts. Further, it covers different mature membrane technologies such as polymeric membranes, poly-ceramic membranes, carbon-based membranes and many more, followed by pertinent case studies. Features: Focuses on the removal of heavy metals using membrane-based technologies. Discusses pertinent criteria to select suitable membranes. Includes feasibility studies and applications of different mature and emerging membranes. Describes heavy metals' occurrence and transport in an aqueous system with an overview of the adverse effects. Reviews challenges and opportunities associated with using different membranes. This book is aimed at graduate students and researchers in materials science, water engineering and wastewater treatment.

Download or read book New Trends in Removal of Heavy Metals from Industrial Wastewater written by Maulin P. Shah and published by Elsevier. This book was released on 2021-04-23 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Trends in Removal of Heavy Metals from Industrial Wastewater covers the applicable technologies relating to the removal of heavy metals from wastewater and new and emerging trends in the field, both at the laboratory and industrial scale. Sections explore new environmentally friendly technologies, the principles of sustainable development, the main factors contributing to heavy metal removal from wastewater, methods and procedures, materials (especially low-cost materials originated from industrial and agricultural waste), management of wastewater containing heavy metals and wastewater valorization, recycling, environmental impact, and wastewater policies for post heavy metal removal. This book is an advanced and updated vision of existing heavy metal removal technologies with their limitations and challenges and their potential application to remove heavy metals/environmental pollutants through advancements in bioremediation. Finally, sections also cover new trends and advances in environmental bioremediation with recent developments in this field by an application of chemical/biochemical and environmental biotechnology. - Outlines the fate and occurrence of heavy metals in Wastewater Treatment Plants (WWTPs) and potential approaches for their removal - Describes the techniques currently available for removing heavy metals from wastewater - Discusses the emerging technologies in heavy metal removal - Covers biological treatments to remove heavy metals - Includes the valorization of heavy metal containing wastewater

Download or read book Membrane Technologies for Heavy Metal Removal from Water written by Juhana Jaafar and published by CRC Press. This book was released on 2024-02-12 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers lucid treatment of fundamental concepts related to potential applications and prospects of different membranes for wastewater decontamination by removing heavy metals. Divided into four sections, it provides an overview of different sources of water contamination, their impacts on human health and the environment, and compares traditional methods used to nullify these impacts. Further, it covers different mature membrane technologies such as polymeric membranes, poly-ceramic membranes, carbon-based membranes and many more, followed by pertinent case studies. Features: Focuses on the removal of heavy metals using membrane-based technologies Discusses pertinent criteria to select suitable membranes Includes feasibility studies and applications of different mature and emerging membranes Describes heavy metals' occurrence and transport in an aqueous system with an overview of the adverse effects Reviews challenges and opportunities associated with using different membranes This book is aimed at graduate students and researchers in materials science, water engineering and wastewater treatment.

Download or read book Physicochemical Treatment Processes written by Lawrence K. Wang and published by Springer Science & Business Media. This book was released on 2005-03-11 with total page 731 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past 30 years have seen the emergence of a growing desire worldwide to take positive actions to restore and protect the environment from the degrading effects of all forms of pollution: air, noise, solid waste, and water. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for “zero discharge” can be construed as an unrealistic demand for zero waste. However, as long as waste exists, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been identified: (1) How serious is the pollution? (2) Is the technology to abate it available? and (3) Do the costs of abatement justify the degree of abatement achieved? The principal intention of the Handbook of Environmental Engineering series is to help readers formulate answers to the last two questions. The traditional approach of applying tried-and-true solutions to specific pollution pr- lems has been a major contributing factor to the success of environmental engineering, and has accounted in large measure for the establishment of a “methodology of pollution c- trol. ” However, realization of the ever-increasing complexity and interrelated nature of current environmental problems makes it imperative that intelligent planning of pollution abatement systems be undertaken.

Download or read book Liquid Membranes written by Vladimir S Kislik and published by Elsevier. This book was released on 2009-08-31 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Membranes: Principles and Applications in Chemical Separations and Wastewater Treatment discusses the principles and applications of the liquid membrane (LM) separation processes in organic and inorganic chemistry, analytical chemistry, biochemistry, biomedical engineering, gas separation, and wastewater treatment. It presents updated, useful, and systematized information on new LM separation technologies, along with new developments in the field. It provides an overview of LMs and LM processes, and it examines the mechanisms and kinetics of carrier-facilitated transport through LMs. It also discusses active transport, driven by oxidation-reduction, catalytic, and bioconversion reactions on the LM interfaces; modifications of supported LMs; bulk aqueous hybrid LM processes with water-soluble carriers; emulsion LMs and their applications; and progress in LM science and engineering. This book will be of value to students and young researchers who are new to separation science and technology, as well as to scientists and engineers involved in the research and development of separation technologies, LM separations, and membrane reactors. - Provides comprehensive knowledge-based information on the principles and applications of a variety of liquid membrane separation processes - Contains a critical analysis of new technologies published in the last 15 years

Download or read book Environmental Separation of Heavy Metals written by Arup K. SenGupta and published by CRC Press. This book was released on 2001-09-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book explains advanced and emerging technologies for removing heavy metals from wastestreams and contaminated sites. Separation processes of this type are critical for meeting stringent regulations of priority pollutants, especially arsenic, mercury, and lead, which the text treats in depth. After explaining the chemistry of heavy metals and their transport in various media, the work offers a comprehensive analysis of strategies for separating metals from groundwater, wastewater, contaminated soils, and industrial sludges. Both the basics and the applications of techniques such as ion-exchange, specialized sorbents, novel membranes, advanced precipitates, and electrokinetic processes are presented with a view to current use and potential for future applications such as resource reuse. Information in this volume enables engineers and other investigators to adapt and select the best means to remove and, in certain instances, recover heavy metals.

Download or read book Membrane Technologies for Water Treatment written by Alberto Figoli and published by CRC Press. This book was released on 2016-02-18 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the application of membrane technologies in removing toxic metals\metalloids from water. Particular attention is devoted to the removal of arsenic, uranium, and fluoride. These compounds are all existing in the earth’s crust at levels between two and five thousands micrograms per kg (parts per million) on average and these compounds can be considered highly toxic to humans, who are exposed to them primarily from air, food and water. In order to comply with the new maximum contaminant level, numerous studies have been undertaken to improve established treatments or to develop novel treatment technologies for removing toxic metals from contaminated surface and groundwater. Among the technologies available, applicable for water treatment, membrane technology has been identified as a promising technology to remove such toxic metals from water. The book describes both pressure driven (traditional processes, such as Nanofiltration, Reverse Osmosis, Ultrafiltration,etc) and more advanced membrane processes (such as forward osmosis, membrane distillation, and membrane bio-reactors) employed in the application of interest. Key aspect of this book is to provide information on both the basics of membrane technologies and on the results depending on the type of technology employed.

Download or read book Surface Science written by K. Oura and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most important aspects of modern surface science are covered. All topics are presented in a concise and clear form accessible to a beginner. At the same time, the coverage is comprehensive and at a high technical level, with emphasis on the fundamental physical principles. Numerous examples, references, practice exercises, and problems complement this remarkably complete treatment, which will also serve as an excellent reference for researchers and practitioners. The textbook is idea for students in engineering and physical sciences.

Download or read book Membrane Technologies written by Katarzyna Staszak and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-10-03 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane techniques are an excellent alternative to traditional methods of purification and separation. This book covers issues related to the most recent developments in the field of membrane techniques. The latest scientific research and their potential applications in industrial solutions are described. In addition, currents trends in food & beverages technologies, and biomedicine are discussed. Moreover, the book emphasizes recent advancements in design of membrane systems, used either for separation or creation of mixtures, from the perspective of industry 4.0 and data management.

Download or read book Nanohybrid and Nanoporous Materials for Aquatic Pollution Control written by Lin Tang and published by Elsevier. This book was released on 2018-10-12 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanohybrid and Nanoporous Materials for Aqueous Environmental Pollution Control gives a comprehensive treatment of fabrication methods and their application in environmental remediation, including adsorption, catalysis and signal transfer in pollutant detection. The design, fabrication and application of nanohybrid and nanoporous materials for environmental pollution control are described in detail, along with discussions on their synthesis, characterization, and applications in different aspects of pollutant treatment. Chapters introduce the design and synthesis of magnetic nanohybrid materials, advanced oxide process-photocatalytic degradation of environmental pollutants based on nanomaterials, and nanohybrids of iron based materials for reduction and oxidation of aqueous recalcitrant pollutant. Finally, challenges and suggestions in the application of nanomaterials for environmental pollution control are discussed, as is an analysis of the future perspective of nanomaterials for environmental application. - Presents the most up-to-date developments in this rapidly progressing field - Provides suggestions to address challenges and solve current problems related to the application of nanoporous materials - Discusses future trends and perspectives in the area of nanohybrid and nanoporous materials

Download or read book Recent Trends and Innovations in Sustainable Treatment Technologies for Heavy Metals Dyes and Other Xenobiotics written by Biswanath Bhunia and published by Bentham Science Publishers. This book was released on 2022-12-02 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book integrates knowledge about innovative technologies developed in the past decade with information about commercial-scale processes. It is written with the objective to help readers to understand the potential of achieving sustainability and high efficiency in wastewater treatment. The book presents nine chapters. Chapter 1 details the types of wastewater, its characteristics, and the major commercial-scale strategies employed to treat wastewater. Chapter 2 details the different types of physicochemical methods utilized for the remediation of heavy metals, dyes, and xenobiotics. Chapters 3 and 4 highlight innovations in the advanced oxidation process and adsorption for remediation of such complex molecules, respectively. Chapters 5, 6, and 7 highlight the recent innovations in bioremediation of xenobiotics, heavy metals, and dyes, respectively. Finally, chapters 8 and 9 discuss the latest technologies, prevailing bottlenecks, and the path ahead towards commercial viability and environmental sustainability in both physico-chemical and biological treatment processes.

Download or read book Development and Characterization of Novel Nanofibrous Metal Organic Framework Adsorption Membranes for Water Treatment written by Johnson Effoe Efome and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane technology has become a predominant process in providing one of the key components of life (water), either through water and wastewater treatment for water quality purposes or desalination as seen in Ultra-filtration, Nano-filtration, Reverse osmosis, Membrane distillation, Pervaporation, among others. With the ever-increasing demand for portable water due to population increase, constant research has focused on the improvements of the performances of the different water treatment systems including enhancing the performance of the membrane. Among all the different membrane performance enhancement techniques exploited, incorporation of filler has gained much grounds in the last decades. Traditional fillers like silica gel, activated carbon, metal oxides and zeolites are now being challenged by the recent class of mesoporous materials known as Metal Organic Frameworks (MOFs), which are built of metal ions or metal ion clusters linked together by organic ligands giving these materials tunable pore geometries and pore volume, greatly improved surface area with extraordinary adsorptive properties. The membrane incorporating MOFs demonstrate enhance performances more than the other fillers due to the good coordination of the organic moiety and polymers. The overall objective of this project is to develop and study a membrane incorporated MOFs nanofiber system vis-à-vis their applications in heavy metal contaminated water treatment, stability in aqueous media and the advantages and drawbacks of these composite membranes with regards to the quality of the water produced. The developed materials were characterized by SEM, FTIR, TEM, XPS, DSC, and TGA. The heavy metals earmarked for this study include; Lead, Mercury, Cadmium, and Zinc and were studied using flame atomic absorption spectrometry (FAAS). Upon successful fabrication of the nanofiber membranes, detailed adsorption studies were conducted (pristine MOF, pristine nanofibers, enmeshed MOFs) to establish adsorption kinetics and isotherm, which were used further to select the best performing membranes for filtration application. Two different MOFs were used, MOF808; made of Zirconium and Benzene Tricarboxylate) and MOF F300; made of Iron and Benzene Tricarboxylate) The adsorption capacities of the MOFs for the different heavy metal analyzed were; MOF 808 (Pb-170.74 mg g-1, Zn-287 mg g-1, Cd-225.05 mg g-1, Hg-276.96 mg g-1) and MOF F300 (Pb-148.13 mg g-1, Hg-229.66 mg g-1), while the membrane adsorption capacities were; PA808 (MOF 808 embedded within polyacrylonitrile (PA) nanofibers, (Pb-23.98 mg g-1, Hg-50.88 mg g-1), PA300, MOF F300 embedded within polyacrylonitrile nanofibers, (Pb-30.19 mg g-1, Hg-53.09 mg g-1). Upon activation of MOF 808 by water (hydractivation), the removal efficiency of MOF 808 was improved by 10% while the MOF membrane efficiency was increased by 30%. Filtration experiments could produce 577.5 L of treated water with a single layer of PAN/ MOF808 membrane at 0.1 bar using a 50 ppb Pb ion feed solution.

Download or read book Biosorption of Heavy Metals written by Bohumil Volesky and published by CRC Press. This book was released on 1990-08-15 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This state-of-the-art volume represents the first comprehensively written book which focuses on the new field of biosorption. This fascinating work conveys essential fundamental information and outlines the perspectives of biosorption. It summarizes the metal-sorbing properties of nonliving bacterial, fungal, and algal biomass, plus highlights relevant metal-binding mechanisms. This volume also discusses the aspects of obtaining and processing microbial biomass and metal-chelating chemicals into industrially applicable biosorbent products. Microbiologists, chemists, and engineers with an interest in new technological and scientific horizons will find this reference indispensable.

Download or read book Membrane Technology and Applications written by Richard W. Baker and published by John Wiley & Sons. This book was released on 2012-10-01 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: “... the best handbook on membrane technology, which is currently on the market... ” –Membrane News (on the previous edition) Building on the success of the previous edition, Membrane Technology and Applications Third Edition provides a comprehensive overview of separation membranes, their manufacture and their applications. Beginning with a series of general chapters on membrane preparation, transport theory and concentration polarization, the book then surveys several major areas of membrane application in separate chapters. Written in a readily accessible style, each chapter covers its membrane subject thoroughly, from historical and theoretical backgrounds through to current and potential applications. Topics include reverse osmosis, ultrafiltration, pervaporation, microfiltration, gas separation and coupled and facilitated transport; chapters on electrodialysis and medical applications round out the coverage. NEW TO THE THIRD EDITION New sections on the use of membranes in the chlor-alkali industry, membrane distillation, pressure retarded osmosis and constant flux-variable pressure ultrafiltration Zeolite and ceramic membranes, submerged membrane modules, and fuel cell membranes Substantially enhanced chapters on ultrafiltration, pervaporation and membrane contactors Updates to every chapter to reflect the developments in the field

Download or read book Surface Modification on Nanofiltration Membranes with Alkoxysilanes for Heavy Metal Ion Removal written by Maja Bauman and published by . This book was released on 2010 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heavy metal ions, such as Zn2+, Cd2+, Pb2+, Ni2+, Cu2+, Mn2+, Hg2+, Co2+, Al3+, Fe3+, Cr6+,. are mainly discharged into the environment as industrial wastewaters, causing serious soil and water pollution and consequently effect the health of living organisms due to ecotoxical properties. Their removal is achievable with membrane technologies, by using appropriate nanofiltration membrane. Since NF membranećs efficiency varies regarding the material used and preparation process of the manufacturer, surface modification with alkoxysilanes via sol-gel process seems promising for a more successful selective removal of heavy metal ions. Surface modification of membranes by alkoxysilane precursors via sol-gel process in terms of additional surface coating can further stabilize the membrane, and particularly improve the selective removal of specific heavy metals due to steric effects, electrosteric properties and functional groups with a tendency to heavy metal ions on the surface membrane. The research was focused on the basic characterization of the selected thin-film composite NF membrane (NF2, Inc. Sepro.). Sols were prepared in accordance with the sol-gel process pure and combined components of alkoxysilane precursors, i.e. tetraethoxysilane (TEOS),3-(trimethoxysilylpropyl)diethylenetriamine (DETA), 3-(mercaptopropyl)trimethoxysilane (MPTMS) for particle. Sol formation was based on water-to-precursor ratio: (r525, r264 and r175) and combinations of precursors in the proportions 1:1, 1:2, 1:4, 2:1 and 4:1, in alkaline and acidic pH medium (~4.5 and ~10), from 1 to 14 hours aging time and temperatures from 25 °C to 50 °C. Prepared sols and modified membranes were characterized via several different characterization techniques. The purpose of basic research was to examine the parameters effect of preparation and sol-gel coating (type and concentration of sol-gel precursor, catalyst, molar ratio water to precursor, sol aging, and preparation time of sol) on the finalmicrostructure of membrane surface modification. Based on the analyzed properties of sol-gel alkoxide materials and surface layer of the modified membranes, information of the basic parameters that influence the effect of retention of heavy metals ions (Zn2+, Cd2+, Hg2+, Pb2+) from wastewater was obtained. Surface-modified membranes with the best sol-gel coatings were tested for efficiency of heavy metal ions removal using model water at variousfiltration conditions. The characterization results of non-modified, commercially available thin-film composite nanofiltration membrane showed an unstable structure and varying retention rates of ions and molecules of different sizes and weights as its drawback. Selected alkoxysilane precursors (TEOS, DETA and MPTMS) forming coatings in sol-gel process with optimized sol composition under optimized sol-gel procedure enable to form the functional particles with affinity to membranes and to heavy metal ions and to apply themas a functional and stable monolayer onto the selected membrane. The results of the filtration show that the surface modification of NF membranes can be effective in terms of selective retention of heavy metal ions. Particularly the selective retention of Hg2+ and Pb2+ ions is improved by using a combination of precursor TEOS:MPTMS and TEOS:DETA 1:1 ratio, at temperature 50 °C, and TEOS with a r525 at room temperature.