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 14: Carbon-based filters for water and wastewater treatment
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Published:November 2023
G. Vajitha, K. P. Madan, C. Tewari, N. G. Sahoo, Shihabudheen M. Maliyekkal, 2023. "Carbon-based filters for water and wastewater treatment", Technological Solutions for Water Sustainability: Challenges and Prospects: Towards a Water-secure India, Ligy Philip, Thalappil Pradeep, S. Murty Bhallamudi
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Carbon is a unique and exciting material with extensive use in various fields of science and engineering. Purification of water and wastewater is one of the earliest applications of carbon, which has now become an integral part of most household- and community-based water treatment units. Abundant availability, low cost and toxicity, high chemical inertness and thermal stability, and high surface area and pore volume make carbon and its derivatives ideal for water and wastewater treatment. Carbon has been used to remove excess chlorine, disinfection by-products and their precursors, taste and odour compounds, synthetic organic chemicals, heavy metals, and salts from water. Many bulk and nanoscale carbon modifications have been developed, expecting improved properties and enhanced water-purifying ability. This chapter reviews the evolution and application of carbon-based materials in water and wastewater treatment. The synthesis, removal mechanism, and factors affecting purification by carbon filters are discussed. The challenges and future prospects of carbon-based filtration technology are discussed briefly.