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Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.
Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.
Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.
- a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
- b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)
- c)Statement (I) is true but Statement (II) is false
- d)Statement (I) is false but Statement (II) is true
Correct answer is option 'A'. Can you explain this answer?
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Statement (I): When waste water is treated at an oxidation ditch, anae...
Understanding Oxidation Ditch and Anaerobic Sludge Digester
The relationship between oxidation ditches and anaerobic sludge digesters is crucial in wastewater treatment. Here’s a breakdown of the statements and the reasons behind the correct answer.
Statement (I): Anaerobic Sludge Digester Not Required
- Oxidation ditches can effectively treat wastewater through aerobic processes.
- The extended aeration method in oxidation ditches helps in stabilizing and mineralizing organic materials.
- Hence, it is indeed possible to treat wastewater in an oxidation ditch without the necessity of an anaerobic sludge digester.
Statement (II): Extended Aeration Process
- Oxidation ditches operate on the principle of extended aeration.
- This process allows for the breakdown and mineralization of sludge, converting it into less harmful substances.
- The aeration helps in maintaining aerobic conditions, which leads to efficient removal of organic matter.
Correct Answer Explanation
- Both statements are true:
- Statement (I) correctly indicates that an anaerobic sludge digester is not required when using an oxidation ditch.
- Statement (II) accurately describes the mechanism of the oxidation ditch, emphasizing the extended aeration process that leads to sludge mineralization.
- Statement (II) serves as a correct explanation for Statement (I) because it elucidates why the anaerobic sludge digester is unnecessary in this context.
In conclusion, the correct answer is option 'A' as both statements are true and Statement (II) explains Statement (I). This understanding is vital for optimizing wastewater treatment processes in civil engineering.
The relationship between oxidation ditches and anaerobic sludge digesters is crucial in wastewater treatment. Here’s a breakdown of the statements and the reasons behind the correct answer.
Statement (I): Anaerobic Sludge Digester Not Required
- Oxidation ditches can effectively treat wastewater through aerobic processes.
- The extended aeration method in oxidation ditches helps in stabilizing and mineralizing organic materials.
- Hence, it is indeed possible to treat wastewater in an oxidation ditch without the necessity of an anaerobic sludge digester.
Statement (II): Extended Aeration Process
- Oxidation ditches operate on the principle of extended aeration.
- This process allows for the breakdown and mineralization of sludge, converting it into less harmful substances.
- The aeration helps in maintaining aerobic conditions, which leads to efficient removal of organic matter.
Correct Answer Explanation
- Both statements are true:
- Statement (I) correctly indicates that an anaerobic sludge digester is not required when using an oxidation ditch.
- Statement (II) accurately describes the mechanism of the oxidation ditch, emphasizing the extended aeration process that leads to sludge mineralization.
- Statement (II) serves as a correct explanation for Statement (I) because it elucidates why the anaerobic sludge digester is unnecessary in this context.
In conclusion, the correct answer is option 'A' as both statements are true and Statement (II) explains Statement (I). This understanding is vital for optimizing wastewater treatment processes in civil engineering.
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Community Answer
Statement (I): When waste water is treated at an oxidation ditch, anae...
The conventional activated sludge plant is modified to eliminate the primary sedimentation tank and sludge digestion tank, in a process, called extended aeration process (also called oxidation ditch).
In this, an aeration tank of longer aeration time is provided. A some part of settled sludge is re-circulated back and excess settled sludge which is well stabilised due to long detention period of 12-15 hours can be easily dried on sand beds and disposed of suitably without using any sludge digestion tank.
Important Point
Design parameters for an oxidation ditch are:
In this, an aeration tank of longer aeration time is provided. A some part of settled sludge is re-circulated back and excess settled sludge which is well stabilised due to long detention period of 12-15 hours can be easily dried on sand beds and disposed of suitably without using any sludge digestion tank.
Important Point
Design parameters for an oxidation ditch are:
- Detention time: 12-15 hours.
- Volume of Ditch - 120 to 150 cum per metre length of rotor.
- Mixer Liquor suspended solids (MLSS) concentration: 4000-5000 mg/l.
- BOD removal: 98 % and Suspended solids removal: 95 %.
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Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. Can you explain this answer?
Question Description
Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. 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 Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. 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 Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. Can you explain this answer?.
Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. 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 Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. 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 Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Statement (I): When waste water is treated at an oxidation ditch, anaerobic sludge digester is not required.Statement (II): Oxidation ditch admits an extended aeration process whereby sludge gets mineralized.a)Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)b)Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)c)Statement (I) is true but Statement (II) is falsed)Statement (I) is false but Statement (II) is trueCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE).
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