Ch-11 Wastewater Story Flashcards
____________ is one of the basic necessities of life.
Clean Water
Women and girls walk for ___________________ to collect clean water
Several Kilometers
World Water Day was declared on which day ?
22nd March 2005
Who declared World Water Day?
General Assembly of United Nations
_____________________ proclaimed the period _________________ as the International Decade for action on water for life
General Assembly of United Nations, 2005-2015
The water that is rich in oil and is mixed with oil or black-brown in color that goes down the drains from sinks, toilets, showers etc. is called
Wastewater
What is waste from our home called
Domestic Waste
Name some harmful microbial diseases present in Domestic Waste.
Jaundice, Cholera and Typhoid
Wastewater generated in industries, factories, offices etc. is called-
Industrial Waste
Industrial Waste contains-
Poisonous Chemicals and Metals
What is wastewater from hospitals called ?
Hospital Waste
What does hospital waste contain
Disease-Causing Germs and Radioactive Chemicals
Is rainwater wastewater ?????????
YES
What does agricultural waste contain ?
Nitrates, Phosphates, Dangerous Chemicals
All Wastewater forms-
Sewage
Clean Water that is fit for drinking is called-
Potable Water
Sewage is a ______________.
Liquid Waste
Most of sewage is ____________.
Water
What are the impurities present in sewage called as ?
Contaminents
What does the water in sewage contain ?
Dissolved and Suspended impurities
Organic Impuritis present in sewage are :-
( PS: There are 8 of those )
Human Faeces, Animal Waste, Oil, Urea ( Urine ), Pesticides, Hericides, Fruit and Vegetable Waste, etc.
Inorganic Impurities present in sewage
There are 3 of them
Nitrates, Phosphates, and Metals
Nutrients present in sewage :-
There are 2 of them
( PS: Bro, Even I think it’s absurd )
Phosphurus and Nitrogen
Bacteria present in Sewage
There are 2 of them
Vibrio Cholera and Salmonella Typhi
What are the other microbes present in sewage :-
Only 1
Entamoeba Histolytica
What do the bacteria present in sewage cause :-
Cholera and Typhoid respectively
What does Entamoeba Histolytica Cause ?
Dysentry
Sewarage goes through a system of pipes called
Sewers
Sewers linked to each other form a network called :-
Sewerage System
Sewage flows from houses through pipes of
It’s the materials
Cast Iron or PVC pipes
Full Form of PVC is
Polyvinyl Chloride
Diameter of sewage pipes
8 to 10 cm
Manholes are covered with what -
Its about the lid
Heavy cemented or metallic lids
Openings on the roads surface are called-
Bruh, its those stuff on the road
Manholes
Manhole are located every
50-60 metres, at junction of two pipes or where the direction of the pipe is changed.
The contamination of fresh water is called :-
Wtaer Pollution
The subtance that cause water pollution are called as
Water Pollutants
Three categories of water pollutants
Physical, Chemical, and Biologcal pollutants
Physical Pollutants include
Heat and Oil spills
Common Inorganic Impurities in water are compunds of
Calcium and Magnesium
Biological pollutants include
pathogens
The process of removing pollutants and destroying the disease causing from wastewater before it enters a water body, is known as :-
Sewage Treatement
Water that emerges from the sedimentation tank is called
Clarified Water
The collected sludge is transferred to different tanks called as :-
Digesters
___________ released in digesters
Biogas ( can be used as fuel )