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 21: A point-of-use single probe multi-analyte sensor
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Published:November 2023
J. Narayanan, P. Yuvaraj, J. B. Gowthaman, M. Kalipriyadharshini, J. Raghava Rao, S. Easwaramoorthi, 2023. "A point-of-use single probe multi-analyte sensor", Technological Solutions for Water Sustainability: Challenges and Prospects: Towards a Water-secure India, Ligy Philip, Thalappil Pradeep, S. Murty Bhallamudi
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Water is an essential molecule for all life on earth and it carries numerous other species including different elements and neutral molecules which necessarily decide its usability for a variety of applications. The presence of external species in water occurs either naturally or due to anthropogenic activities. Though some of them are essential nutrients for living organisms, many of them might lead to adverse health effects. Rapid industrialization and the ever-increasing human population have resulted in an increased demand for potable water. Unfortunately, the scarcity of quality potable water owing to the depletion of resources in several countries demands the identification of new resources and day-to-day water quality monitoring. Indeed, an inadvertent mix of sewage and domestic wastewater in drinking water resources also contributes to water pollution, in addition to industrial waste which is a predominant water-polluting activity. Thus, continuous water quality monitoring at the source is essential which could be achieved by the systematic analysis of the contaminants present therein, even in remote places. While the traditional analytical techniques are quite expensive and hence cannot be deployed in remote places, molecule or material-based identification, that is, sensing of specific target species has been found to be the cost-effective method. Unfortunately, most of the probes that have been developed were specific to one target, which becomes a drawback when analysing the actual sample that would probably consist of several toxic species. Thus, simultaneous analysis of different toxic species with distinctly different signalling pathways is required as a practically viable solution. This chapter will focus on the importance of water quality monitoring, methods, and sensors that operate on colorimetric, luminescent, and electrochemical principles. The toxic species present in the water will be restricted to the metal ions. Furthermore, the molecules which sense more than one or two toxic species simultaneously will be incorporated and the reports of the integrated sensor arrays will also be included.