Wastewater released by houses is called ____________.

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Solution

Sewage:
Sewage is wastewater that is discharged from homes, hospitals, industries, offices, and other locations.
It also includes rainwater that falls on the streets during a storm.
Many harmful substances are present in the water that runs off the roads and rooftops.
Sewage is a type of liquid waste.
Wastewater contains both dissolved and suspended impurities. These impurities are referred to as contaminants.
Hence, Wastewater released by houses is called sewage.

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(b) Wastewater released by houses is called ________.

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Question 20

Given below is a jumbled sequence of the processes involved in a wastewater treatment plant. Arrange them in their correct sequence.
(a) Sludge is scraped out and skimmer removes floating grease.
(b) Water is made to settle in a large tank with a slope in the middle.
(c) Large objects like plastic bags are removed by passing wastewater through bar screens.
(d) Sand, grit and pebbles are made to settle by decreasing the speed of incoming wastewater.
(e) Wastewater enters a grit and sand removal tank.

Question 21

Three statements are provided here which define the terms, i.e. sludge, sewage and wastewater. Pick out the correct definition for each of these terms.
(a) The settled solids that are removed in wastewater treatment with a scraper.
(b) Water from kitchen used for washing dishes.
(c) Wastewater released from homes, industries, hospitals and other public buildings.

Wastewater released by houses is called ___

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