Pre-cooling Technique for a Thermal Discharge from the Coastal Thermal Power Plant

Manjunatha, Sulur G.; Bobade, K.B.; Kudale, M.D.

doi:10.1016/j.proeng.2015.08.299

Cited by 6 publications

(3 citation statements)

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“…Moreo- Surface water contaminations (specifically in rivers and streams) are mainly due to urbanization, agriculture, and manufacturing discharge [8]. In addition, environmental physical factors can also cause contamination, whereas the temperature of an aquatic environment can fluctuate with heated water discharged from power plants [9]. Moreover, hydro-heated water or water containing certain contaminants may not become an issue at any time of the year if it is immediately diluted by combining with surface water [10].…”

Section: Introductionmentioning

confidence: 99%

Various Natural and Anthropogenic Factors Responsible for Water Quality Degradation: A Review

Akhtar

Ishak

Bhawani

et al. 2021

Water

472

117

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Recognition of sustainability issues around water resource consumption is gaining traction under global warming and land utilization complexities. These concerns increase the challenge of gaining an appropriate comprehension of the anthropogenic activities and natural processes, as well as how they influence the quality of surface water and groundwater systems. The characteristics of water resources cause difficulties in the comprehensive assessment regarding the source types, pathways, and pollutants behaviors. As the behavior and prediction of widely known contaminants in the water resources remain challenging, some new issues have developed regarding heavy metal pollutants. The main aim of this review is to focus on certain essential pollutants’ discharge from anthropogenic activities categorized based on land-use sectors such as industrial applications (solid/liquid wastes, chemical compounds, mining activities, spills, and leaks), urban development (municipal wastes, land use practices, and others), and agricultural practices (pesticides and fertilizers). Further, important pollutants released from natural processes classified based on climate change, natural disasters, geological factors, soil/matrix, and hyporheic exchange in the aquatic environment, are also discussed. Moreover, this study addresses the major inorganic substances (nitrogen, fluoride, and heavy metals concentrations). This study also emphasizes the necessity of transdisciplinary research and cross-border communication to achieve sustainable water quality using sound science, adaptable legislation, and management systems.

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Section: Introductionmentioning

confidence: 99%

Various Natural and Anthropogenic Factors Responsible for Water Quality Degradation: A Review

Akhtar

Ishak

Bhawani

et al. 2021

Water

472

117

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“…Impacts of warm thermal discharge can be attenuated if part of the heat is lost before the discharge enters the waterbody. This is typically achieved by leaving the warm water in contact with the atmosphere -for example in cooling ponds or channels [67] -before it is discharged. Another technique is to discharge the warm water as a spray, which will enhance evaporation and heat exchange with the air, thereby cooling the discharge.…”

Section: Design Of the Thermal Dischargementioning

confidence: 99%

Using lakes and rivers for extraction and disposal of heat: Estimate of regional potentials

2019

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“…Advanced cooling techniques allow the use of warmer water and recycling of used water. An example of such a technique is the use of channels or ponds, where heated water releases heat to the atmosphere before being discharged or reused for cooling (Manjunatha, Bobade, & Kudale, 2015). A more effective method is the operation of cooling towers, which dissipate most of the waste heat by evaporating water and thus reduce the amount of water and heat discharged into the waterbody as compared to direct cooling (Stewart et al, 2013).…”

Section: Principlementioning

confidence: 99%

Impacts of using lakes and rivers for extraction and disposal of heat

Gaudard¹,

Weber²,

Alexander

et al. 2018

WIREs Water

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The extraction and disposal of heat from lakes and rivers is a large yet scarcely exploited source of renewable energy, which can partly replace fossil fuel heating and electrical cooling systems. Its use is expected to increase in the near future, which brings attention to the impacts of discharging thermally altered water into aquatic systems. Our review indicates that thermal discharge affects physical and ecological processes, with impacts recorded at all levels of biological organization. Many in situ studies found local effects of thermal discharge (such as attraction or avoidance of mobile organisms), while impacts at the scale of the whole water body were rarely detected. In complex systems, diffuse impacts of thermal discharge are difficult to disentangle from natural variability or other anthropogenic influences. Discharge of warm water in summer is likely to be most critical, especially in the context of climate change. Under this scenario, water temperatures may reach maxima that negatively affect some species. Given the diversity and complexity of the impacts of thermal pollution on aquatic systems, careful planning and judicious management is required when using lakes and rivers for extraction and disposal of heat. We discuss the drivers that influence the severity of potential impacts of such thermal use, and the options available to avoid or mitigate these impacts (such as adapting the operating conditions). This article is categorized under: Science of Water > Water Quality Water and Life > Stresses and Pressures on Ecosystems Engineering Water > Sustainable Engineering of Water

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Pre-cooling Technique for a Thermal Discharge from the Coastal Thermal Power Plant

Cited by 6 publications

References 0 publications

Various Natural and Anthropogenic Factors Responsible for Water Quality Degradation: A Review

Various Natural and Anthropogenic Factors Responsible for Water Quality Degradation: A Review

Using lakes and rivers for extraction and disposal of heat: Estimate of regional potentials

Impacts of using lakes and rivers for extraction and disposal of heat

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