Advertisements
Advertisements
प्रश्न
Dried ______ is used as manure.
Advertisements
उत्तर
Dried sludge is used as manure.
Explanation:
Sludge is a by product of wastewater treatment. When dried, it contains nutrients that can enrich soil, making it a valuable organic fertilizer for agriculture.
APPEARS IN
संबंधित प्रश्न
Describe the steps involved in getting clarified water from wastewater.
Explain how sludge is treated.
Name two chemicals used to disinfect water.
Which of the following is not a source of waste water?
State whether the following statement is True or False. In case a statement is false, write the correct statement.
Sewage is a solid waste which causes water pollution and soil pollution
State whether the following statement is True or False. In case a statement is false, write the correct statement.
Used water is wastewater
State whether the following statement is True or False. In case a statement is false, write the correct statement.
Wastewater could be reused
Given below is a jumbled sequence of the processes involved in a wastewater treatment plant. Arrange them in their correct sequence.
- Sludge is scraped out and skimmer removes the floating grease.
- Water is made to settle in a large tank with a slope in the middle.
- Large objects like plastic bags are removed by passing wastewater through bar screens.
- Sand, grit and pebbles are made to settle by decreasing the speed of incoming wastewater.
- Wastewater enters a grit and sand removal tank.
Three statements are provided here which define the terms –
- sludge
- sewage and
- wastewater.
Pick out the correct definition for each of these terms.
- The settled solids are removed in wastewater treatment with a scraper.
- Water from the kitchen is used for washing dishes.
- Wastewater is released from homes, industries, hospitals and other public buildings.
Describe various steps of cleaning wastewater in a wastewater treatment plant.
