pullution of hussain sagar lake
TRANSCRIPT
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ENVIRONMENTAL SCIENCE
PROJECT
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Pollution Study of Hussain sagar
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CONTENTS• About Hussain sagar• Causes of pollution• Impacts of pollution• Control on pollution
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• Lake constructed in 1562 for the irrigation need
• Water spread area 5.7 sq. km
• Present water area 4.81 sq. km
• Shore length 14 km
• Drinking water source from 1884 to 1930
• Total catchment area 240sq km
• Average depth of lake 5.02 m
Hussain sagar lake
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Causes of pollution• Raw sewage through nalas via Balkapur,
Banjara, Kukatpally and Picket nalas.• Industrial effluents through kukatpally
nalas.• Dried Flower and Garlands- puja
material.• Commercial establishments• Immersion of Ganesh and Durga idols• Nutrient rich sediments in lake bed
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Balkapur Nala
Banjara Nala
Kukatpally Nala
Picket Nala
Surplus Outlet - Opp: Marriot
Surplus Outlet - at Liberty
Inflows and Outflows
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Impacts of pollution• Death of aquatic animals• Disruption of food chain
• Diseases
• Air pollution
• Algal bloom
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The most common cause is reduced oxygen in the lake water, which in turn
may be due to factors such as algae bloom, over pollution or sustained increase in temperature, Infectious diseases. The sewage water which
contain oils also be the reason for the death of fishes in hussain sagar lake
Death of aquatic animals
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BloomingFreshwater algal blooms are the result of an excess of nutrients, particularly some phosphates. The excess of nutrients may originate from fertilizers that are applied to land for agricultural or recreational purposes. They may also originate from household cleaning products containing phosphorus.
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DiseasesWe all drink water that come from a source
this may be a lake, local river and ground water. As the increase in pollution in
hussain sagar lake the ground water is also polluted. And if the ground water or
drinking water source is polluted we can easily suffer from the diseases like- cholera and tuberculosis. Every year there are 3-5
million cases of cholera repotted in the world
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Air pollutionBy the increase in the pollutant in the
Hussain Sagar lake, the lake becomes so dirty. The fishes are also dying
continuously and sewage waste is also coming to the lake. So by these all
happening in the lake the very bad smell is coming from the Hussain Sagar. This
bad smell is coming from the lake which can pollute the surrounding area's air.
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Control on pollutionThe Hyderabad Metropolitan Water Supply and Sewerage Board (HMWSSB) and Telangana Pollution Control Board (TPCB) have decided to collaborate and study the ‘nalas’ drains that pollute the Hussain sagar. It is being done as per the orders of Chief Minister K. Chandrasehkar Rao. 30 million litres per day (MLD) sewage treatment plant (STP) has been installed at the Balkapur nala, and a 20 MLD STP for treating waste coming from the Kukatpally and Picket nalas.
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THANK YOU
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PRESENTED BY-
KRANTI KUMAR PARAS14STUHHCS0049