Nano Enabled Technologies For Water Remediation

Nano-Enabled Technologies for Water Remediation highlights several aspects of wastewater treatment using low-dimensional carbon-based materials. The book also focuses on advances in membrane-based separation, specifically on the pressure driven membrane process. In the case of membrane advances, the focus is exclusively on metal and metal oxide, mixed matrix membranes, GO, and CNT loaded membranes for targeted pollutant removal. Further, new and upcoming technologies of membrane preparation, via the electrospinning method, and advances in membrane distillation and wastewater remediation are discussed. In addition, the book includes coverage of recent advances occurring in sustainable technologies for wastewater remediation with bio-active nanomaterials, bio-inspired, and bio-templated nanomaterials which assist readers in gaining a new perspective for implementing nature-mimicked designs for water treatment and conservation. Covers fundamental theories for complex technologies so that the readers do not need to sift through large quantities of available literature Provides information on major nano-enabled technologies for wastewater treatment, such as composite membranes, electrospun nanofibrous membranes, visible-light catalysts, multi-functional adsorbents, hydrogels, bio-active materials, bio-inspired materials, and more Assesses the major challenges to integrating nanotechnology solutions to water remediation processes in a scalable and cost-efficient manner

Given that the threat of water shortage is expanding across the globe, the evolution of advanced technologies that enable water purification and, thus, water re-use in an energy and resource efficient manner are of great importance. In this regard, nanomaterials have been playing a crucial role and offering new opportunities for the construction of permeable and selective membranes and adsorbents. Such features are of paramount importance, particularly given the limited available energy resources. In this book, several recent studies are introduced that deal with water treatment via nanomaterial-based technologies. Such state-of-the-art technologies have employed nanomaterials that are made of polymer, composite, ceramic, and carbon, etc., and are shaped in various dimensionalities and forms such as particle (0D), fiber (1D), and film (2D–3D). The nanostructured membranes and adsorbents as well as photocatalytic nanosystems capable of active photodecomposition of organic pollutants, e.g., dyes, are the main focal points of discussion.

The rapid development of nanoscience enables a technology revolution that will soon impact virtually every facet of the water sector. Yet, there is still too little understanding of what nanoscience and nanotechnology is, what can it do and whether to fear it or not, even among the educated public as well as scientists and engineers from other disciplines. Despite the numerous books and textbooks available on the subject, there is a gap in the literature that bridges the space between the synthesis (conventional and more greener methods) and use (applications in the drinking water production, wastewater treatment and environmental remediation fields) of nanotechnology on the one hand and its potential environmental implications (fate and transport of nanomaterials, toxicity, Life Cycle Assessments) on the other. Nanotechnology for Water and Wastewater Treatment explores these topics with a broad-based multidisciplinary scope and can be used by engineers and scientists outside the field and by students at both undergraduate and post graduate level.

Nanotechnology is already having a dramatic impact on improving water quality and the second edition of Nanotechnology Applications for Clean Water highlights both the challenges and the opportunities for nanotechnology to positively influence this area of environmental protection. This book presents detailed information on cutting-edge technologies, current research, and trends that may impact the success and uptake of the applications. Recent advances show that many of the current problems with water quality can be addressed using nanosorbents, nanocatalysts, bioactive nanoparticles, nanostructured catalytic membranes, and nanoparticle enhanced filtration. The book describes these technologies in detail and demonstrates how they can provide clean drinking water in both large scale water treatment plants and in point-of-use systems. In addition, the book addresses the societal factors that may affect widespread acceptance of the applications. Sections are also featured on carbon nanotube arrays and graphene-based sensors for contaminant sensing, nanostructured membranes for water purification, and multifunctional materials in carbon microspheres for the remediation of chlorinated hydrocarbons. Addresses both the technological aspects of delivering clean water supplies and the societal implications that affect take-up Details how the technologies are applied in large-scale water treatment plants and in point-of-use systems Highlights challenges and the opportunities for nanotechnology to positively influence this area of environmental protection

Contamination of aqueous environments by hazardous chemical compounds is the direct cause of the decline of safe clean water supply throughout the globe. The use of unconventional water sources such as treated wastewater will be a new norm. Emerging nanotechnological innovations have great potential for wastewater remediation processes. Applications that use smart nanomaterials of inorganic and organic origin improve treatment efficiency and lower energy requirements. This book describes the synthesis, fabrication, and application of advanced nanomaterials in water treatment processes; their adsorption, transformation into low toxic forms, or degradation phenomena, and the adsorption and separation of hazardous dyes, organic pollutants, heavy metals and metalloids from aqueous solutions. It explains the use of different categories of nanomaterials for various pollutants and enhances understanding of nanotechnology-based water remediation to make it less toxic and reusable.

Nanomaterials have shown supreme potential in overcoming the major challenges posed by both the conventional as well as nano-enabled water purification systems. Remediation is the process of transforming the pollutants present in water from toxic to below the limits stipulated by national/international guidelines. Water remediation is the process of obtaining clean water from decontaminated water and is currently a huge challenge for the global scientific community.Volume 2 focuses on the use of inorganic oxides including metal and non-metal oxide materials for water remediation. This book also covers the broad discussion regarding various metal and non-metal oxides as well as nanoadsorbent metals, nanoparticles, cryogels and bentonites for the removal of the various organic and inorganic pollutants from wastewater. Water pollution is mainly caused by contaminants and can cause severe environmental and health issues. It is a well-established fact that nanomaterials have better adsorption capacity, selectivity and stability than nanoparticles.This book also covers the broad areas of nanotechnology, engineering, environmental science and water research, and will be of great benefit to researchers involved in these fields. The book provides a platform for all researchers as it covers considerable background from recent literature, including the abbreviations used. In addition, this book covers the broader research areas of chemistry, physics, materials science, composites, engineering and nanotechnology to present a multidisciplinary approach.

The capability to generate potable water from polluted sources is growing in importance as pharmaceuticals, microplastics and waste permeate our soil. Nanotechnology allows for improvements in water remediation technologies by taking advantage of the unique properties of materials at this small scale.

Offering a comprehensive view of water-treatment technologies, Nanomaterials for Water Treatment and Remediation explores recent developments in the use of advanced nanomaterials (ANMs) for water treatment and remediation. In-depth reaction mechanisms in water-treatment technologies, including adsorption, catalysis, and membrane filtration for water purification using ANMs, are discussed in detail. The book includes an investigation of the fabrication processes of nanostructured materials and the fundamental aspects of surfaces at the nanoscale. The book also covers the removal of water-borne pathogens and microbes through a photochemical approach. FEATURES Explains various chemical treatments for the removal and separation of hazardous dyes, organic pollutants, pharmaceuticals, and heavy metals from aqueous solutions, including adsorption, advanced oxidation process, and photocatalysis Discusses the rational design of nanoporous materials with a tunable pore structure and fabrication of nanomaterials by surface chemistry engineering Covers the role of nanomaterials-assisted oxidation and reduction processes, design of nano-assisted membrane-based separation, and multifunctional nanomaterials and nanodevices for water treatment Provides an understanding of the structure–activity relationship and stability of ANMs under critical experimental conditions Identifies potential challenges in the application of multifunctional ANMs for future research Nanomaterials for Water Treatment and Remediation is aimed at researchers and industry professionals in chemical, materials, and environmental engineering as well as related fields interested in the application of advanced materials to water treatment and remediation.