what can you see in the picture
DESCRIPTION
What can you see in the picture . Where do I come from. I. Come from. Rain. River. Lake. Well. Can you drink me. What am I Called . I am called sewage or waste water . I will tell you how I became like this. Ch.18. Waste. Water. Story. What difference c an you see ?. - PowerPoint PPT PresentationTRANSCRIPT
What can you see in the picture
Where do I come from
ICome from
Rain
River
Lake
Well
Can you drink me
What am I Called
I am called sewage or waste water
I will tell you how I became like this
Ch.18 Waste StoryWater
PICTURE 1 PICTURE 2
What difference can you see ?
How you think I
became
Became like this ?
I will tell you how
industrial
water
riverside
Waste
How people make me dirty Home
Kitchen waste Cleaning the
house Watering plants
How people make me dirty
Hospital Disposal of
medicines Cleaning surgical
instruments
How people make me dirty Daily activities
Bathing Washing utensils Shaving
How people make me dirty
Mining Cleaning ore Other activities
How people make me dirty
Industries
Releasing chemical waste
Diluting chemicals
The waste from above all areas is called as the sewage.
The dissolved impurities are called as pollutants or contaminants
1.Phosphates & nitrates2.Metals like iron copper zinc
1.Urine & excreta2.Kitchen waste3.Animal waste
Organic impuritiesInorganic
impurities
Nutrients
SEWAGE
Bacteria1. Typhoid
bacteria2. Cholera
bacteria
1.Nitrogen2.Phosperous
PurificationOf
SewageFiltration Chlorination
Removing of impurities and contaminants
Using chlorine to clean water
Use of mouse is compulsory
1. Sewage is mainly generated from which of these?
Houses
Hospitalsoffices
Factories
2. Which of the process is used to remove dirt and sand from wastewater
Filtration
AerationChlorination
Sedimentation
3. Aeration of water during waste water treatment removes which of these?
Germs
Insoluble thingsHuman waste
Bacteria
4. Which of the process during wastewater treatment helps in killing germs
Flocculation
AerationChlorination
Sedimentation
5. Which of these disease can happen after drinking contaminated water
Small pox
MalariaCholera
Pneumonia
6. Jaundice affects which organ
Stomach
HeartLungs
Liver
7. Which method can be used to make ocean water fit for drinking
Chlorination
Reverse osmosisBoiling
Filtration
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