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- 1. THERMAL POLLUTION -BY TEJA VARDHAN SEC-D
- 2. CONTENTS Here’s what you’ll find In this presentation • What is thermal pollution • Major affects of thermal pollution • Causes of thermal pollution • Sources of thermal pollution • Controlling thermal pollution • Preventive measures • Examples
- 3. What is thermal pollution? When the quality of water is degraded as results of modification in close water temperature it's referred to as pollution that affects the water quality and that type water termed anomaly for consumption is significantly for drinking purpose. A rise in the optimum water temperature through a method (steel factories, power homes, and energy plants) might even be stated as "Thermal Pollution."
- 4. ● Depleted level of oxygen in natural water ● Contamination of water ● Thermal shock which results in increase in temperature in water bodies ● Adverse effect on water plants ● Unexpected migration of water animals ● Unfavorable effect on water biodiversity EFFECTS OF THERMAL POLLUTION
- 5. ● water availed as coolant and ejected back into water bodies ● growing industrial activities ● release of cold water ● chemical pollutants discharged into water ● waste of livestock mixed into water ● natural geo-thermal activities CAUSES OF THERMAL POLLUTION
- 6. ● Coal-fired Power Plants : Few thermal power plants avail coal as fuel. Power plants which use coal represent the key supply of the pollution. ● Industrial Effluents: Industries producing electricity require a great deal of cooling water for warmth removal. ● Atomic power Plants: Nuclear power plants release an oversized quantity of unused heat and traces of virulent radio nuclear into close water streams. ● Domestic Sewage: Domestic sewerage is commonly discharged into rivers, canals, and lakes with-out waste treatment. SOURCES OF THERMAL POLLUTION
- 7. CONTROLLING THERMAL POLLUTION • Cooling Ponds: Cooling ponds or reservoirs represent the best technique of dominant thermal discharges. This is often the best and most cost-effective technique which helps in losing the heat of the water to a substantial low temperature. • Cooling Towers: cooling towers are availed to dissipate the recovered waste heat thus on eliminate the issues of pollution. • Artificial Lake: These lakes are artificial bodies of water which supply attainable various to once through cooling. The warmth is eventually dissipated through vaporization.
- 8. PREVENTIVE MEASURES Thermal pollution could be controlled by employing of few efficient scientific techniques such as: • Reduce electricity usage • Release heated water in less vulnerable regions • Reuse of heated water • Tree planting along the shorelines • Use of alternative source of energy • Environmental awareness
- 9. EXAMPLE OF THERMAL POLLUTION • In a 2016 global analysis of thermal pollution in rivers, the Mississippi River topped the list. • Sixty-two percent of the river's heat emissions came from coal-fired power plants, and 28% from nuclear power generation. • Europe's Rhine River also suffered significant impacts from power plant emissions, most notably from nuclear plants. • Water-scarce countries, particularly in the Middle East, have turned to desalination as a means of bolstering water security in the face of drought and climate change. • At California's last operating nuclear power plant, Diablo Canyon near San Luis Obispo, opponents have long raised concerns about the ecosystem impacts of the plant discharging millions of gallons of heated seawater each day back to the ocean.
- 10. THANK YOU