Technological Solutions for Water Sustainability: Challenges and Prospects: Towards a Water-secure India
This book provides an overview of technical sustainable water management in the Global South, mainly in India, and is structured in five sections:
The current status and challenges for sustainable water management in India
New-age materials for water and wastewater treatment
New technologies for water and wastewater treatment
Sensors for water quality monitoring
Urban water management
Section 1 provides the latest information about the status and challenges for sustainable water management in India from the perspective of water quality, industrial and domestic wastewater treatment, urban water infrastructure and policy and governance towards water security. Section 2 discusses new framework solids for water purification, new materials for arsenic and fluoride removal, nanocomposites for water and wastewater treatment and removal of hazardous materials, and toxicity of these materials. Section 3 presents the new technologies developed for water and wastewater treatment; dealing with pulsed power technology, constructed wetlands, nutrient recovery, low-cost filters and pollution abatement using waste derived materials. Section 4 focuses on sensors, including the development of low-cost colorimetric sensors for eutrophying ions, sensors for conductivity and flow parameters, and multi-analyte assessment for water quality. Finally, Section 5 addresses the issues related to urban water infrastructure, sustainable urban drainage and integrated flood and water scarcity management.
This section also discusses virtual water.
The unique feature of this edited volume is its special perspective on emerging economies in the Global South, such as India. It provides information about adaption of technologies, development of new technologies, and management practices which are context driven and region specific. It also deals with economical and easy to use sensors for large-scale monitoring of water quality and water quantity parameters.
ISBN: 9781789063707 (paperback)
ISBN: 9781789063714 (eBook)
Chapter 8: Emerging carbon-based nanocomposites for the removal of hazardous materials
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Published:November 2023
Chetna Tewari, Sumit Kumar, Biswajit Saha, Yong Chae Jung, Nanda Gopal Sahoo, 2023. "Emerging carbon-based nanocomposites for the removal of hazardous materials", Technological Solutions for Water Sustainability: Challenges and Prospects: Towards a Water-secure India, Ligy Philip, Thalappil Pradeep, S. Murty Bhallamudi
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Even though water covers 75% of the earth's surface, only 0.0067% of it is available for human use. These figures continue to deteriorate as the world's population grows, resulting in an increase in the amount of waste created every year. Worldwide, the desire for clean and safe water has always been a major concern. The pursuit of efficient materials for environmental remediation is a critical scientific and technological concern. Carbon-based materials (CBM) have unique electrical, mechanical, and physicochemical properties, making them ideal for use as environmental adsorbents, sensors, membranes, and catalysts. Basically, CBM includes activated carbon, carbon nanofibre, biochar, carbon aerogel, graphene, carbon nanotubes, and so on. These materials can easily be engineered and functionalized, depending on the chemical nature of the target contaminants, and shows great efficiency towards the removal of hazardous materials. Carbon-based nanocomposites (CBNC) play a vital role in water treatment and environmental remediation due to their higher adsorption capacity, improved permeation, porous nature, and selectivity towards pollutants. This book chapter discusses the effective employment of CBNCs, including their future prospects in the field of water purification for the removal of textile dyes, volatile organic substances, toxic metals, oil, and biological contaminants.