Which of the following has minimum hydraulic retention time?a)Conventi...
Explanation: Modified aeration process has a minimum hydraulic retention time with an aeration period of 1.5 hours.
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Which of the following has minimum hydraulic retention time?a)Conventi...
Modified Aeration Process
The Modified Aeration Process has the minimum hydraulic retention time among the options provided.
Explanation:
Conventional Process:
- In the conventional process, the wastewater is treated in various stages such as primary settling, aeration, and secondary settling.
- The hydraulic retention time in the conventional process is longer compared to other processes due to the multiple stages involved.
Extended Process:
- The extended aeration process involves a longer aeration time to achieve higher levels of treatment.
- The hydraulic retention time in the extended process is longer than the conventional process but shorter than the modified aeration process.
Complete Mix Process:
- In the complete mix process, the wastewater is thoroughly mixed to ensure uniform treatment throughout.
- The hydraulic retention time in the complete mix process can vary depending on the design of the system, but it is generally longer than the modified aeration process.
Modified Aeration Process:
- The modified aeration process is a variation of the extended aeration process that involves a shorter aeration time.
- This process is designed to achieve efficient treatment with minimal hydraulic retention time, making it suitable for applications where space or time constraints are a concern.
Therefore, the Modified Aeration Process has the minimum hydraulic retention time among the options provided.