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In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and called
- a)sewage
- b)sullage
- c)sludge
- d)activated sludge
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In a waste water treatment plant, after passing the waste water throug...
It is called sludge.
This question is part of UPSC exam. View all Class 7 courses
Most Upvoted Answer
In a waste water treatment plant, after passing the waste water throug...
Explanation:
Introduction:
In a waste water treatment plant, the process of removing impurities and contaminants from wastewater takes place. One of the key steps in this process is the settling of solids in a large tank.
Role of Grit and Sand Removal Tank:
Before the water reaches the settling tank, it passes through a grit and sand removal tank. This tank is designed to remove large particles such as sand, gravel, and other debris that may be present in the wastewater. The purpose of this step is to prevent damage to the equipment and to ensure the smooth functioning of the subsequent processes.
Settling Tank:
After passing through the grit and sand removal tank, the wastewater enters a large settling tank. This tank allows the water to settle and separates the suspended solids from the liquid. The settling process is facilitated by the force of gravity, which causes the solids to sink to the bottom of the tank.
Sludge Formation:
The solids that settle at the bottom of the settling tank are called sludge. Sludge is a mixture of organic and inorganic materials that are present in the wastewater. It is composed of various substances such as fecal matter, bacteria, chemicals, and other pollutants.
Characteristics of Sludge:
Sludge has a high water content and is usually thick and viscous. It may have an unpleasant odor and can contain harmful bacteria and pathogens. Therefore, proper handling and disposal of sludge is essential to prevent environmental pollution and protect public health.
Further Treatment:
Once the sludge is collected, it undergoes further treatment to reduce its volume and remove any remaining contaminants. This treatment process may involve methods such as thickening, dewatering, and digestion. The treated sludge can then be safely disposed of or used for beneficial purposes such as fertilizer or energy production.
Conclusion:
In a waste water treatment plant, the settling tank plays a crucial role in separating solids from the wastewater. The solids that settle at the bottom of the tank are called sludge. Proper management and treatment of sludge are essential for effective wastewater treatment and environmental protection.
Introduction:
In a waste water treatment plant, the process of removing impurities and contaminants from wastewater takes place. One of the key steps in this process is the settling of solids in a large tank.
Role of Grit and Sand Removal Tank:
Before the water reaches the settling tank, it passes through a grit and sand removal tank. This tank is designed to remove large particles such as sand, gravel, and other debris that may be present in the wastewater. The purpose of this step is to prevent damage to the equipment and to ensure the smooth functioning of the subsequent processes.
Settling Tank:
After passing through the grit and sand removal tank, the wastewater enters a large settling tank. This tank allows the water to settle and separates the suspended solids from the liquid. The settling process is facilitated by the force of gravity, which causes the solids to sink to the bottom of the tank.
Sludge Formation:
The solids that settle at the bottom of the settling tank are called sludge. Sludge is a mixture of organic and inorganic materials that are present in the wastewater. It is composed of various substances such as fecal matter, bacteria, chemicals, and other pollutants.
Characteristics of Sludge:
Sludge has a high water content and is usually thick and viscous. It may have an unpleasant odor and can contain harmful bacteria and pathogens. Therefore, proper handling and disposal of sludge is essential to prevent environmental pollution and protect public health.
Further Treatment:
Once the sludge is collected, it undergoes further treatment to reduce its volume and remove any remaining contaminants. This treatment process may involve methods such as thickening, dewatering, and digestion. The treated sludge can then be safely disposed of or used for beneficial purposes such as fertilizer or energy production.
Conclusion:
In a waste water treatment plant, the settling tank plays a crucial role in separating solids from the wastewater. The solids that settle at the bottom of the tank are called sludge. Proper management and treatment of sludge are essential for effective wastewater treatment and environmental protection.
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In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and calleda)sewage b)sullagec)sludge d)activated sludgeCorrect answer is option 'C'. Can you explain this answer?
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In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and calleda)sewage b)sullagec)sludge d)activated sludgeCorrect answer is option 'C'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and calleda)sewage b)sullagec)sludge d)activated sludgeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and calleda)sewage b)sullagec)sludge d)activated sludgeCorrect answer is option 'C'. Can you explain this answer?.
In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and calleda)sewage b)sullagec)sludge d)activated sludgeCorrect answer is option 'C'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and calleda)sewage b)sullagec)sludge d)activated sludgeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and calleda)sewage b)sullagec)sludge d)activated sludgeCorrect answer is option 'C'. Can you explain this answer?.
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