Advertisements
Advertisements
Question
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 the skimmer removes the 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.
Solution
The correct sequence of processes involved in a wastewater treatment plant is as follows:
(c) Large objects like plastic bags are removed by passing wastewater through bar screens,
(e) Wastewater enters a grit and sand removal tank.
(d) Sand, grit and pebbles are made to settle by decreasing the speed of incoming wastewater.
(b) Water is made to settle in a large tank with a slope in the middle.
(a) Sludge is scraped out and the skimmer removes the floating grease.
APPEARS IN
RELATED QUESTIONS
Dried ______ is used as manure.
Explain how sludge is treated.
Name two chemicals used to disinfect water.
Explain the function of bar screens in a wastewater treatment plant.
Which of the following is/are products of wastewater treatment?
The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as
State whether the following statement is True or False. In case a statement is false, write the correct statement.
Where underground sewerage systems and refuse disposal systems are not available, the high-cost on-site sanitation system can be adopted.
Three statements are provided here which define the terms
(a) sludge
(b) sewage and
(c) wastewater.
Pick out the correct definition for each of these terms.
(a) The settled solids are removed in wastewater treatment with a scraper.
(b) Water from the kitchen is used for washing dishes.
(c) Wastewater is released from homes, industries, hospitals and other public buildings.
Describe various steps of cleaning wastewater in a wastewater treatment plant.
What is sludge?
