Download or read book Removal of Emerging Contaminants from Aqueous Solutions by Using Polymeric Resins written by Dan Liu and published by . This book was released on 2011 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emerging contaminants (ECs) such as estrogen hormones, perfluorinated compounds (PFCs), bisphenol A (BPA) and 1, 4-dioxane have been detected in natural water bodies at a noticeable level worldwide. The presence of ECs in the aquatic environment can pose potential threats to aquatic organisms as well as human world. Ion-exchange is a highly efficient technology for the removal of heavy metal ions and natural organic materials (NOMs) due to the nature of exchanging similar charged ions. However, this technology has not been explored for removing ECs. In this study, four categories of ECs: estrogen hormones (12), perfluorinated compounds (10), bisphenol A and 1, 4-dioxane were used as model contaminants. The adsorption of each category of ECs onto various types of polymeric resins (MN100, MN200, A530E, A532E and C115) was investigated. The removal of ECs was tested under batch and column mode. The effects of pH, resin dosage, and contact time on the removal of ECs were studied in batch mode; isotherm and kinetics models were applied to fit the experimental data. Column experiments were conducted to verify the practicability of the polymeric resins. Adsorption results have shown that both MN100 and MN200 resins could efficiently remove estrogen hormones mixture (more than 95%), and bisphenol A (more than 80%) with the initial concentration of 100 ìg/L; A532E and A530E could remove perfuorinated compounds mixture (more than 99%) with the initial concentration of 100 ìg/L. As pH increased from 9 to 11, the adsorption capacity onto polymeric resins decreased dramatically for estrogen hormones such as 17á-ethinylestradiol, estriol, 17â-estradiol, 17á-estradiol, estrone, 17á-dihydroequilin and equilin as well as bisphenol A. The adsorption of estrogen hormones and bisphenol A onto MN100 and MN200 resins reached the equilibrium within 24 hours, whereas the adsorption of perfluorinated compounds onto A532E and A530E reached the equilibrium within 8 hours. It was also observed that the adsorption of PFCs largely depends on the C-C chain length. PFCs with longer chain yielded lower adsorption efficiency onto the ion-exchange resins A532E and A530E. Adding salinity decreased the first-order rate constants for the adsorption of bisphenol A onto MN100 and MN200 resins. Fixed-bed column experiment results with estrogen hormones mixtures confirmed that the polymeric resins were good candidates in the removal of estrogen hormones. Trimegestone was the first compound detected in the effluent in the column test while 17â-estradiol, 17á-estradiol were the last. 80% of the exhausted resins (MN100 and MN200) by bisphenol A were regenerated by using pure methanol as regeneration solution. Polymeric resins were not effectively removing 1, 4-dioxane from the aqueous solution.
Download or read book Emerging Pollutant Treatment in Wastewater written by S.K. Nataraj and published by CRC Press. This book was released on 2022-03-30 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the innovations and techniques to identify and treat emerging pollutants in waste and polluted water. It begins with the classification of emerging pollutants and is followed by a review on existing detection and elimination techniques as well as the current regulations in place. Subsequent chapters cover membrane-based separation processes, polymer-based or resin-based water filters, functional materials, nanomaterials-based adsorbents, microplastics and a summary of the potential solutions in treating or removing emerging pollutants. Features Presents an overview of current and developing treatment technologies for water polluted with emerging pollutants Gives an in-depth account and analysis of advanced materials and methods for separation and treatment Reviews analytical techniques applied to detect emerging pollutants Discusses the overall effect of policies on current chemicals/plastics/APIs in the market Includes pertinent case studies and regulations This book is aimed at researchers, professionals and graduate students in environmental, civil and chemical engineering and waste and drinking water treatment.
Download or read book REMOVAL OF ORGANIC CONTAMINANTS FROM WATER BY POLYMERIC RESINS written by Nastaran Jadbabaei and published by . This book was released on 2016 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discharge of many organic contaminants (OCs) to the environment from industries such as pharmaceuticals, pesticides, dyestuffs, and chemical intermediates is one of the major concerns to human health and the ecosystem due to their high toxicity. Existing water and wastewater treatment techniques were not specifically designed to remove OCs, and the elimination rate can vary from negligible to over 90%. Therefore, development of treatment technologies to efficiently remove OCs from water and wastewater effluents is required. Polymeric resins are an alternative for treatment since they can selectively target certain OCs as they can be custom-synthesized during polymerization by including desired functional groups to the matrix. However, additional efforts and cost are needed for the regeneration of the exhausted resins and recycling of the sorbed contaminants. Palladium based catalysts supported on polymeric resins are a promising method to overcome regeneration problems and convert contaminants to less toxic chemicals. The main goals of this research were to (1) develop predictive models for the sorption of cationic OCs by resins based on a mechanistic understanding of the sorption mechanisms of a range of cationic OCs on two cation exchange resins and (2) synthesize novel resin-based Pd catalysts to selectively remove two toxic contaminants, i.e., 4-chlorophenol and 4-nitrophenol, convert them to less toxic chemicals, and evaluate the possibility of in situ regeneration of the spent resins. The sorption study indicated that electrostatic (ion exchange) and nonelectrostatic (adsorption) interactions between nonpolar moieties of solute and sorbent have synergistic effects on sorption. It also established predictive models for estimating the sorbed concentrations of a target contaminant on a given resin at any environmentally relevant pH. Our findings point to the significant role of adsorption in the overall catalytic reactivity. The rate determining step (RDS) switched from adsorption to surface reaction with increasing concentration of the reactant. This observation was confirmed by good fitting of the reaction kinetics to the Langmuir-Hinshelwood model developed based on the respective RDS. Our results demonstrated that Pd-resin composites are advantageous to water treatment because they can avoid the conventional resin regeneration process and enable recycling of reaction products of smaller environmental impacts.
Download or read book Microbial Polymers written by Anukool Vaishnav and published by Springer Nature. This book was released on 2021-05-03 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book cover all types of microbe based polymers and their application in diverse sectors with special emphasis on agriculture. It collates latest research, methods, opinion, perspectives, and reviews dissecting the microbial origins of polymers, their production, design, and processing at industrial level, as well as improvements for specific industrial applications. Book also discusses recent advances in biopolymer production and their modification for amplifying the value. In addition, understanding of the microbial physiology and optimal conditions for polymer production are also explained. This compilation of scientific chapters on principles and practices of microbial polymers fosters the knowledge transfer among scientific communities, industries, and microbiologist and serves students, academicians, researchers for a better understanding of the nature of microbial polymers and application procedure for sustainable ecosystem
Download or read book Removal of Organics from Aqueous Solutions Using Polymeric Resins written by Gloria Melinda Gusler and published by . This book was released on 1994 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Layered Double Hydroxide Polymer Nanocomposites written by Sabu Thomas and published by Woodhead Publishing. This book was released on 2019-11-28 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanocomposites based on layered double hydroxides (LDHs) have recently become a formidable research area due to their amendable properties and potential applications. The distinct properties of LDH polymer nanocomposites include a wide range of chemical compositions, structural homogeneity, unique anion exchanging ability, easy synthesis, high bound water content, memory effect, non-toxicity and biocompatibility. This means that LDH polymer nanocomposites have the potential for new and innovative applications. Layered Double Hydroxide Polymer Nanocomposites presents a comprehensive overview of the recent innovative advances in the fabrication, characterization and applications of LDH polymer nanocomposites. As well as covering fundamental structural and chemical knowledge, this book also explores various properties and characterization techniques including microscopic, spectroscopic and mechanical behaviors. There is also a strong focus on the potential applications of LDH polymer nanocomposites, such as energy, electrical and electronic, electromagnetic shielding, biomedical, agricultural, food packaging and water purification functions. This book provides comprehensive coverage of cutting-edge research in the field of LDH polymer nanocomposites and their future applications. This book will be an essential read for all academics, researchers, engineers and students working in this area. - Fundamental knowledge of LDH polymer nanocomposites, including chemical composition, structural features and fabrication techniques - Provides an analytical overview of the different types of characterization techniques and technologies - Extensive review on cutting-edge research for potential future applications, in a variety of industries
Download or read book Removal of Emerging Contaminants Through Microbial Processes written by Maulin P Shah and published by Springer Nature. This book was released on 2020-10-14 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: The abundance of organic pollutants found in wastewater affect urban surface waters. Traditional wastewater management technologies focus on the removal of suspended solids, nutrients and bacteria, however, new pollutants such as synthetic or naturally occurring chemicals are often not monitored in the environment despite having the potential to enter the environment and cause adverse ecological and human health effects. Collectively referred to as "emerging contaminants," they are mostly derived from domestic activities and occur in trace concentrations ranging from pico to micrograms per liter. Environmental contaminants are resistant to conventional wastewater treatment processes and most of them remain unaffected, causing contamination of receiving water. This in turn leads to the need for advanced wastewater treatment processes capable of removing environmental contaminants to ensure safe fresh water sources. This book provides an up-to-date overview of the current bioremediation strategies, including their limitations, challenges and their potential application to remove environmental pollutants. It also introduces the latest trends and advances in environmental bioremediation, and presents the state-of-the-art in biological and chemical wastewater treatment processes. As such, it will appeal to researchers and policy-makers, as well as undergraduate and graduate environmental sciences students.
Download or read book Microconstituents in the Environment written by Rao Y. Surampalli and published by John Wiley & Sons. This book was released on 2023-08-28 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microconstituents in the Environment Comprehensive introduction to managing novel pollutants commonly released into the environment through industrial and everyday processes Microconstituents in the Environment: Occurrence, Fate, Removal and Management provides the readers with an understanding of the occurrence and fate of microconstituents, pollutants that have not previously been detected or regulated under current environmental laws or may cause known or suspected adverse ecological and/or human health effects even at insignificant levels, covering their presence in the environment and possible management strategies. The text is practice-oriented and evaluates a wide range of technologies for pollutant removal and how to implement them in the field. In Microconstituents in the Environment, readers will find information on: Fundamental ideas regarding microconstituents, including their classification, major sources, and detection methods, and their removal via biological treatment techniques Fate and transport of microconstituents in various environmental domains, including mathematical modeling based on remote sensing techniques Physicochemical treatment techniques for microconstituents, including precipitation, absorption, filtration, membrane separation, and oxidation Sustainability and environmental management, including the regulatory framework and requirements for developing a new field application, plus an outlook on green design concepts With its emphasis on management and remediation, Microconstituents in the Environment is a highly useful one-stop resource on the subject for environmental scientists, modelers, government agencies, and research scientists working in the field of environmental pollution.
Download or read book Emerging Pollutants written by Francisco G. Calvo-Flores and published by John Wiley & Sons. This book was released on 2018-02-20 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: An excellent, concise, and interdisciplinary overview of different classes of emerging pollutants arising, for example, from pharmaceuticals, pesticides, personal care products, and industrial chemicals and their impact on water, soil, and air. Following an introduction to chemical pollutants, with special attention focused on organic compounds and their properties, the book goes on to describe major emerging pollutants grouped according to their applications in different sectors of industrial or economic activity. For each type of compound, the chemical structure, main properties, and source are presented, along with their fate in the environment as pollutants, the latest analytical methods for detection, possible health or ecology consequences, as well as current regulatory laws. New developments, such as nanotechnology as a pollution source, are also included. The book closes with a chapter devoted to conclusions and future perspectives.
Download or read book Polymer Composites From Computational to Experimental Aspects written by Sushanta K. Sethi and published by Springer Nature. This book was released on with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymeric Sorbents for the Removal of Emerging Contaminants written by Kelly N.. Lynn-Senci and published by . This book was released on 2010 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Pollutant Treatment in Wastewater written by S.K. Nataraj and published by CRC Press. This book was released on 2022-03-30 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the innovations and techniques to identify and treat emerging pollutants in waste and polluted water. It begins with the classification of emerging pollutants and is followed by a review on existing detection and elimination techniques as well as the current regulations in place. Subsequent chapters cover membrane-based separation processes, polymer-based or resin-based water filters, functional materials, nanomaterials-based adsorbents, microplastics and a summary of the potential solutions in treating or removing emerging pollutants. Features Presents an overview of current and developing treatment technologies for water polluted with emerging pollutants Gives an in-depth account and analysis of advanced materials and methods for separation and treatment Reviews analytical techniques applied to detect emerging pollutants Discusses the overall effect of policies on current chemicals/plastics/APIs in the market Includes pertinent case studies and regulations This book is aimed at researchers, professionals and graduate students in environmental, civil and chemical engineering and waste and drinking water treatment.
Download or read book Polymeric Adsorbents written by Ahad Ghaemi and published by Elsevier. This book was released on 2023-09-08 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric Adsorbents: Characterization, Properties, Applications, and Modelling offers comprehensive information on the various types of polymeric adsorbents and uses, enabling the reader to understand, identify and prepare adsorbents with the required structure and properties for a range of key industrial applications. The book presents the various types of polymeric adsorbents and their characteristics, focuses on physicochemical properties, synthesis methods, functionalization, and composites and hybrid materials, and highlights key application areas, including gas adsorption, heavy metal removal, hazardous dye removal, and adsorption of antibiotics. Finally, the book provides detailed guidance on modeling of polymeric adsorbent behavior and molecular dynamic (MD) simulation. This is a valuable resource to researchers and advanced students across polymer science, chemistry, materials science, engineering, environmental science, and engineers, scientists, and R&D professionals with an interest in polymeric adsorbents for industrial applications. - Covers a full range of polymeric adsorbent types, as well as composites and hybrid adsorbents - Explains chemistry, characterization, functionalization and methods for improving properties - Explores a range of applications supported by detailed coverage of simulation and modeling
Download or read book Inorganic Organic Composites for Water and Wastewater Treatment written by Eric Lichtfouse and published by Springer Nature. This book was released on 2021-12-03 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume on ''Inorganic-Organic Composites for Water and Wastewater Treatment'' reviews research findings on advanced materials and methods for purification. Considering the fact that new emerging pollutants are released into the environment and water bodies, it is necessary to develop more advanced techniques in order to treat them. The utilization of metal – organic framework in view of applications, synthesis, properties like adsorption, characterization of the electronic and geometric aspects, and hybrid systems is reiewed in this book, and the advantages/disadvantages, shortcomings including future prospects associated with metal-based nanoparticles and nanocomposites for water decontamination are discussed. In addition, the use of carbon quantum dots, supramolecular ion-exchange resins, multifunctional composite aerogels, algal biomass valorization and titania-containing composites in treatment processes are also presented.
Download or read book Environmental Nanotechnology Volume 5 written by Nandita Dasgupta and published by Springer Nature. This book was released on 2021-09-05 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents comprehensive reviews on the latest developments of nanotechnologies to detect and remove pollutants in water, air and food. Polymer nanocomposites, nanoparticles from microbes and the application of nanotechnologies for desalination and agriculture are also discussed. Pollution of water and air by contaminants and diseases is a major health issue leading globally to millions of deaths yearly according to the World Health Organization. Such issue requires advanced methods to clean environmental media.
Download or read book Green Adsorbents for Pollutant Removal written by Grégorio Crini and published by Springer. This book was released on 2018-07-31 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume on adsorption using green adsorbents and is written by international contributors who are the leading experts in the adsorption field. Together with the first volume they show a typical selection of green materials used in wastewater treatment, with emphasis on industrial effluents. This second volume focuses on innovative materials. It presents hemp-based materials for metal removal, and the use of leaves for metal removal. It describes the biosorption of metals and metalloids on various materials and discusses the recent advances in cellulose-based adsorbents used in environmental purposes. Furthermore, activated carbons from food wastes, aerogels and bones, and municipal solid waste biochar as efficient materials for pollutant removal, respectively are reviewed as well as biosorption of dyes onto microbial biosorbents and the use of mushroom biomass to remove pollutants are looked at. The volume also includes detailed review of green adsorbents for removal of antibiotics, pesticides and endocrine disruptors and the use of pillared interlayered clays as innovative materials for pollutant removal. Finally, the use of green adsorbents for radioactive pollutant removal from natural water is discussed. The audience for this book includes students, environmentalists, engineers, water scientists, civil and industrial personnel who wish to specialize in adsorption technology. Academically, this book will be of use to students in chemical and environmental engineering who wish to learn about adsorption and its fundamentals. It has also been compiled for practicing engineers who wish to know about recent developments on adsorbent materials in order to promote further research toward improving and developing newer adsorbents and processes for the efficient removal of pollutants from industrial effluents. It is hoped that the book will serve as a readable and useful presentation not only for undergraduate and postgraduate students but also for the water scientists and engineers and as a convenient reference handbook in the form of numerous recent examples and appended information.
Download or read book Emerging Contaminants Vol 2 written by Nadia Morin-Crini and published by Springer Nature. This book was released on 2021-04-28 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging contaminants are chemical and biological agents for which there is growing concern about their potential health and environmental effects. The threat lies in the fact that the sources, fate and toxicology of most of these compounds have not yet been studied. Emerging contaminants, therefore, include a large number of both recently discovered and well-known compounds such as rare earth elements, viruses, bacteria, nanomaterials, microplastics, pharmaceuticals, endocrine disruptors, hormones, personal care products, cosmetics, pesticides, surfactants and industrial chemicals. Emerging contaminants have been found in many daily products, and some of them accumulate in the food chain. Correlations have been observed between aquatic pollution by emerging contaminants and discharges from wastewater treatment plants. Most actual remediation methods are not effective at removing emerging contaminants. This second volume presents comprehensive knowledge on emerging contaminants with a focus on remediation.
