1. SEWAGE AND SEA WATER
POLLUTION
Presented By
Tasin Parvez Sheikh
Tushar Dahat

3. Sewerage
• Discharge of untreated sewage is single most
important cause for pollution of surface and
ground water because there is a large gap
between generation and treatment of
domestic wastewater in India.

4. Where the Sewage Problem Came From
“The flushing toilet was invented almost 200 years ago, yet
we as a society are still trying to manage the health and
environmental impact of our own waste. The whole idea of
‘public health’ was developed in response to the infection
created by allowing urban streets to flow with septic
wastes. Eventually, the crises in pests, disease and plagues
led to the creation and infrastructure of sewage systems to
remove these wastes and confine them away from the
public in a sewage treatment plant.”

5. How Sewage Enters Waterways
Sewage can enter waterways through:
• Urban runoff
• Sewage leaking from broken pipelines
• Sewage leaking out of pipes directly into storm water drains
• Overflows due to clogs within the sewage system
• Illegal dumping of toilet wastes into storm water drains
• Irrigation of ‘grey water’

6. Liters' water per capita per day
• The following norms are being adopted by the Government for the
rural water supply schemes. Provision of 40 litres of water per day
per capita is aimed at in the rural areas currently.
Purpose Quantity
Drinking 3
Cooking 5
Bathing 15
Washing utensils & house 7
Ablution 10
• Government of India norms for piped water supply in towns and
cities are as follows.
Towns without sewerage – 70lpcd
Cities with sewers/proposed – 135lpcd
Mega cities with sewers/proposed – 150lpcd

7. WHO Say’s
• According to the World Health Organization
(WHO), on average a person needs 3 liters of
water for drinking, 4 liters for cooking, 20
liters for bathing, 40 liters for sanitation, 25
liters to wash vessels and 23 liters for
gardening.

8. SEA WATER POLLUTION

9. Causes of Sea Water Pollution
• 1 Oil Pollution
• 2 Sewage
• 3 Radioactive Waste

10. Sea water pollution: effects of human
activities
• The seas & oceans receive the brunt of human
waste , whether it is by deliberate dumping or
by natural run-off from the land
• Bad impact & severely affecting marine food
chain

11. Thank You