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The clariflocculator will occur in which of the following things?
- a)Floc formation and its subsequent removal by filtration
- b)Floc formation and its subsequent removal by sedimentation
- c)Floc formation and its subsequent removal by decantation
- d)Removal of bacteria by filtration and chlorination
Correct answer is option 'B'. Can you explain this answer?
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The clariflocculator will occur in which of the following things?a)Flo...
In a clariflocculator. The chemical coagulant is, first of all, fed (either dry or in solution form) into the raw water through the feeding device. This mixture is then thoroughly mixed and agitated in the mixing basin. The 'floc', which is formed as a result of the chemical reaction taking place in the mixing basin, is then allowed to consolidate in the flocculation tank. The flocculated water is finally passed into the sedimentation tank where these flocculated particles settle down and get removed.
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The clariflocculator will occur in which of the following things?a)Flo...
Floc formation and its subsequent removal by sedimentation
The clariflocculator is a unit process used in water treatment plants to remove suspended solids and turbidity from the water. It consists of two main processes: floc formation and its subsequent removal by sedimentation.
Floc formation:
During the floc formation process, coagulants such as alum or ferric chloride are added to the water to neutralize the charge on suspended particles and promote their aggregation. The coagulants destabilize the colloidal particles and form larger particles called flocs. These flocs are formed through the process of coagulation, flocculation, and gentle mixing.
- Coagulation: The coagulants neutralize the negative charges on the suspended particles, allowing them to come closer and form small aggregates.
- Flocculation: In this step, gentle mixing is provided to the water to promote collision and adhesion between the small aggregates, resulting in the formation of larger flocs.
Subsequent removal by sedimentation:
After the floc formation process, the water is transferred to the clariflocculator tank. The clariflocculator is a combination of a flocculator and a sedimentation tank.
- Flocculation: In the clariflocculator tank, the flocs are subjected to gentle mixing or hydraulic flow to enhance their growth. This ensures that the flocs are well-formed and settle more easily during the sedimentation process.
- Sedimentation: The well-formed flocs settle under the influence of gravity in the clariflocculator tank. The settled flocs form a sludge layer at the bottom of the tank, while the clarified water rises to the top.
The settled sludge, also known as sediment, is periodically removed from the bottom of the clariflocculator tank and sent for further treatment or disposal. The clarified water is then transferred to the next stage of the water treatment process, such as filtration or disinfection.
Conclusion:
The clariflocculator is primarily used for floc formation and subsequent removal by sedimentation. It plays a crucial role in water treatment plants by effectively removing suspended solids and turbidity from the water, ensuring the production of clean and safe drinking water.
The clariflocculator is a unit process used in water treatment plants to remove suspended solids and turbidity from the water. It consists of two main processes: floc formation and its subsequent removal by sedimentation.
Floc formation:
During the floc formation process, coagulants such as alum or ferric chloride are added to the water to neutralize the charge on suspended particles and promote their aggregation. The coagulants destabilize the colloidal particles and form larger particles called flocs. These flocs are formed through the process of coagulation, flocculation, and gentle mixing.
- Coagulation: The coagulants neutralize the negative charges on the suspended particles, allowing them to come closer and form small aggregates.
- Flocculation: In this step, gentle mixing is provided to the water to promote collision and adhesion between the small aggregates, resulting in the formation of larger flocs.
Subsequent removal by sedimentation:
After the floc formation process, the water is transferred to the clariflocculator tank. The clariflocculator is a combination of a flocculator and a sedimentation tank.
- Flocculation: In the clariflocculator tank, the flocs are subjected to gentle mixing or hydraulic flow to enhance their growth. This ensures that the flocs are well-formed and settle more easily during the sedimentation process.
- Sedimentation: The well-formed flocs settle under the influence of gravity in the clariflocculator tank. The settled flocs form a sludge layer at the bottom of the tank, while the clarified water rises to the top.
The settled sludge, also known as sediment, is periodically removed from the bottom of the clariflocculator tank and sent for further treatment or disposal. The clarified water is then transferred to the next stage of the water treatment process, such as filtration or disinfection.
Conclusion:
The clariflocculator is primarily used for floc formation and subsequent removal by sedimentation. It plays a crucial role in water treatment plants by effectively removing suspended solids and turbidity from the water, ensuring the production of clean and safe drinking water.
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The clariflocculator will occur in which of the following things?a)Floc formation and its subsequent removal by filtrationb)Floc formation and its subsequent removal by sedimentationc)Floc formation and its subsequent removal by decantationd)Removal of bacteria by filtration and chlorinationCorrect answer is option 'B'. Can you explain this answer?
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The clariflocculator will occur in which of the following things?a)Floc formation and its subsequent removal by filtrationb)Floc formation and its subsequent removal by sedimentationc)Floc formation and its subsequent removal by decantationd)Removal of bacteria by filtration and chlorinationCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about The clariflocculator will occur in which of the following things?a)Floc formation and its subsequent removal by filtrationb)Floc formation and its subsequent removal by sedimentationc)Floc formation and its subsequent removal by decantationd)Removal of bacteria by filtration and chlorinationCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The clariflocculator will occur in which of the following things?a)Floc formation and its subsequent removal by filtrationb)Floc formation and its subsequent removal by sedimentationc)Floc formation and its subsequent removal by decantationd)Removal of bacteria by filtration and chlorinationCorrect answer is option 'B'. Can you explain this answer?.
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