Civil Engineering (CE) Exam  >  Civil Engineering (CE) Questions  >  The treatments which are generally given to t... Start Learning for Free
The treatments which are generally given to treat raw water supplies, follow the sequence

  • a)
    screening, sedimentation, disinfection, filtration

  • b)
    screening, sedimentation, filtration, disinfection

  • c)
    screening, sedimentation, disinfection, aeration

  • d)
    screening, sedimentation, coagulation filtration, disinfection

Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The treatments which are generally given to treat raw water supplies, ...
Most of the big and visible objects, such as trees, branches, sticks, vegetations, fish, animal life, etc., present in raw waters of surface sources can be removed by screening . The coarser suspended materials can than be removed by letting the water settle in sedimentation basins. This process is called plain sedimentation. The finer particles in suspension, which may avoid settling in sedimentation basins even after using chemical coagulation, may then be removed by filtering the water through filters. This process is called filtration. The filtered water which may still contain pathogenic bacteria, is then made bacteria- proof by adding certain chemicals such as chlorine, ozone etc. This process is called disinfection.
View all questions of this test
Most Upvoted Answer
The treatments which are generally given to treat raw water supplies, ...
**Explanation:**

The correct sequence of treatments given to treat raw water supplies is **screening, sedimentation, filtration, disinfection**.

**Screening:**
- The first step in the treatment process is screening.
- It involves the removal of large debris such as leaves, twigs, and other solid materials from the raw water.
- This is usually done by passing the water through a screen or mesh to trap and remove the larger particles.

**Sedimentation:**
- After screening, the water is allowed to settle in large tanks or basins.
- This process is called sedimentation or settling.
- During sedimentation, the suspended particles in the water settle down to the bottom of the tanks due to gravity.
- This helps in the removal of smaller solid particles, as well as some organic matter.

**Filtration:**
- The next step in the treatment process is filtration.
- Filtration involves passing the water through various filters to remove finer particles, bacteria, and other impurities.
- The filters can be made of sand, gravel, activated carbon, or other materials.
- The filters trap and remove the remaining suspended solids, as well as some dissolved contaminants.

**Disinfection:**
- Once the water has been screened and filtered, it is necessary to disinfect it to kill any remaining bacteria, viruses, or other microorganisms.
- Disinfection can be done using various methods such as chlorination, ozonation, or UV irradiation.
- These methods help in destroying or inactivating the microorganisms present in the water, making it safe for consumption.

Therefore, the correct sequence of treatments to treat raw water supplies is screening, sedimentation, filtration, and disinfection (Option B).
Explore Courses for Civil Engineering (CE) exam

Top Courses for Civil Engineering (CE)

The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer?
Question Description
The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect 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 treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect 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 treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE). Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
Here you can find the meaning of The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The treatments which are generally given to treat raw water supplies, follow the sequencea)screening, sedimentation, disinfection, filtrationb)screening, sedimentation, filtration, disinfectionc)screening, sedimentation, disinfection, aerationd)screening, sedimentation, coagulation filtration, disinfectionCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
Explore Courses for Civil Engineering (CE) exam

Top Courses for Civil Engineering (CE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev