MEDIUM
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The diagram shows a typical wastewater treatment process.Question Image

What can be concluded about wastewater treatment process from the diagram?

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Important Questions on Wastewater Story

MEDIUM

Give the biological reasons for the following statement:

Water pollution is a major cause of concern in our country.

EASY

Aerobic bacteria feed on organic matter and produce _____.

HARD
Wastewater is passed through _____ to remove large objects like rags, cans, etc. (bar screens/ filter paper)
EASY
Dried _____ is used as manure. (sludge/plastic)
EASY
The treated water can be recycled and reused for growing _____ (plants/insects/birds).
EASY
_____ tank is used for disposing human excreta.
EASY
The solid that floats in the sedimentation tank is _____.
EASY
During the aeration of clarified water _____ bacteria grow.
 
MEDIUM
Dried _____ is used as manure. (sludge / clay / soil)
MEDIUM

Fill in the blank with the correct option provided in the bracket.

A _____(skimmer/wheelbarrow/mallet) is used to remove floatable solids like oil and grease.

EASY
A _____ tank allows water to seep into the soil and recharge groundwater.
EASY
The solid waste that settles down is called _____.
EASY

_____ water is used in medicines.

EASY
Choose from the following:
(Oil, Chlorine, Sugar)
_____ is used in the form of liquid bleach to purify water.
HARD
A _____ is used to remove floatable solids like oil and grease.
EASY
Organic matter is decomposed by _____ bacteria in aeration tanks.
EASY
Clarified water is cleared after removal of _____ and floating impurities.
EASY
The black-brown oily and lathery water that goes down the drain of a house is called _____.
HARD

Fill in the blank with the correct option provided in the bracket.

Air is pumped into clarified water to help _____(aerobic bacteria/anaerobic bacteria/aerobic plants) to grow.