Nanotechnology in Water and Wastewater Treatment

Theory and Applications

by Amimul Ahsan

Description

Nanotechnology in Water and Waste Water Treatment: Theory and Applications explores the unique physicochemical and surface properties of nanoparticles and highlights the advantages they provide for engineering applications. Applications covered include the generation of fresh water from surface water and seawater, the prevention of the contamination of the environment, and the creation of effective and efficient methods for remediation of polluted waters. Each chapter covers a different nanotechnology-based approach and examines the basic principles, practical applications, recent breakthroughs and associated limitations. This book is ideal for researchers and professionals in the fields of nanotechnology, water treatment and desalination. In addition, it is also ideal for postgraduate students, industry and government professionals, managers and policymakers. - Gathers together the latest research and developments in the field from journal articles and conference proceedings - Discusses and evaluates the most economical and low cost treatment technologies - Presents information from related fields on the applicability, strengths and weaknesses of particular nanomaterials in key applications, thus allowing for the continuation and expansion of research in a range of fields

ISBN-13: 012813903X

Publisher: Elsevier

Language: English

Publish Year: 2018

Amimul Ahsan's "Nanotechnology in Water and Wastewater Treatment" comprehensively explores the transformative potential of nanotechnology in addressing the escalating global water crisis. The book meticulously details how conventional water treatment methods often fall short in removing emerging contaminants, pathogens, and recalcitrant pollutants, thereby necessitating innovative solutions. It introduces a diverse array of nanomaterials, including carbon-based nanomaterials (carbon nanotubes, graphene), metal and metal oxide nanoparticles (silver, titanium dioxide, zero-valent iron), and polymeric nanomaterials, showcasing their unique properties like high surface area, enhanced reactivity, and tunable selectivity that make them superior candidates for advanced purification processes.

The core of the book delves into the specific applications and mechanisms through which these nanotechnologies operate. It elaborates on nanoadsorption for efficient removal of heavy metals and organic dyes, nanofiltration and membrane technologies that offer superior separation capabilities with reduced fouling, and photocatalysis using semiconductor nanomaterials for the degradation of persistent organic pollutants. Furthermore, the book discusses the development of nanosensors for real-time, highly sensitive detection of contaminants, emphasizing how these diverse approaches collectively contribute to more effective, energy-efficient, and sustainable water and wastewater treatment systems compared to traditional methods.

Finally, the book critically examines the challenges and future directions for the widespread implementation of nanotechnology in this field. It addresses crucial aspects such as the cost-effectiveness, scalability of manufacturing and application, potential environmental implications and ecotoxicity of nanomaterials, and the need for robust regulatory frameworks. By highlighting the interdisciplinary research required and the importance of life cycle assessment, Ahsan's work provides a balanced perspective on both the immense promise and the significant hurdles that must be overcome for nanotechnology to fulfill its potential in securing clean water resources for future generations.

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