8
1. sewage
1. sower
Which of the following statements defines aeration?
to expose air to circulating water
ii. to expose water to circulating air
lii, a method of disinfecting water
iv. a method of disinfecting air
) This is a byproduct of sewage treatment and can be decomposed to produce biogas
il sludge
iv, scum
) The chemical which is used to kill the harmful microorganisms present in water is
1. fluorine.
ii. ozone.
lii. chlorine
iv. both (ii) and (iii).
1) Which of the following is not a waterborne disease?
ii. cholera
il dysentery
iv. hepatitis
8) Our body is composed of about 60-75% of
1. water.
ii. food.
il. wastewater
iv. both (ii) and (iii)
I typhoid
2. Match the terms with their meanings.
a) screening
1. impurities percolate through layers of sand, charcoal, and gravel
b) sedimentation
ii. substance that is left behind after wastewater is treated
c) filtration
il chlorine is added to the water
d) aeration
iv. pumping of air to help in growth of aerobic bacteria
e) sludge
v. tank in which good bacteria sink to the bottom
f) clarifier
vi. impurities settle to the bottom of the tank
g) chlorination
vii, solids are separated from liquids in wastewater by using bar screens
>
Answers
Answer:
Explanation:
the question is too long
Answer:
8
1. sewage
1. sower
Which of the following statements defines aeration?
to expose air to circulating water
ii. to expose water to circulating air
lii, a method of disinfecting water
iv. a method of disinfecting air
) This is a byproduct of sewage treatment and can be decomposed to produce biogas
il sludge
iv, scum
) The chemical which is used to kill the harmful microorganisms present in water is
1. fluorine.
ii. ozone.
lii. chlorine
iv. both (ii) and (iii).
1) Which of the following is not a waterborne disease?
ii. cholera
il dysentery
iv. hepatitis
8) Our body is composed of about 60-75% of
1. water.
ii. food.
il. wastewater
iv. both (ii) and (iii)
I typhoid
2. Match the terms with their meanings.
a) screening
1. impurities percolate through layers of sand, charcoal, and gravel
b) sedimentation
ii. substance that is left behind after wastewater is treated
c) filtration
il chlorine is added to the water
d) aeration
iv. pumping of air to help in growth of aerobic bacteria
e) sludge
v. tank in which good bacteria sink to the bottom
f) clarifier
vi. impurities settle to the bottom of the tank
g) chlorination
vii, solids are separated from liquids in wastewater by using bar screens
>
Explanation:
8
1. sewage
1. sower
Which of the following statements defines aeration?
to expose air to circulating water
ii. to expose water to circulating air
lii, a method of disinfecting water
iv. a method of disinfecting air
) This is a byproduct of sewage treatment and can be decomposed to produce biogas
il sludge
iv, scum
) The chemical which is used to kill the harmful microorganisms present in water is
1. fluorine.
ii. ozone.
lii. chlorine
iv. both (ii) and (iii).
1) Which of the following is not a waterborne disease?
ii. cholera
il dysentery
iv. hepatitis
8) Our body is composed of about 60-75% of
1. water.
ii. food.
il. wastewater
iv. both (ii) and (iii)
I typhoid
2. Match the terms with their meanings.
a) screening
1. impurities percolate through layers of sand, charcoal, and gravel
b) sedimentation
ii. substance that is left behind after wastewater is treated
c) filtration
il chlorine is added to the water
d) aeration
iv. pumping of air to help in growth of aerobic bacteria
e) sludge
v. tank in which good bacteria sink to the bottom
f) clarifier
vi. impurities settle to the bottom of the tank
g) chlorination
vii, solids are separated from liquids in wastewater by using bar screens
>