What is the design of sewage treatment year?
The future period for which the provision is made in designing the capacities of various components of the sewerage is known as design period. This sewage treatment plant is designed for 30 years.
What are the factors affecting sewer design?
Factors Influencing the Condition of Sewer Pipes: State-of-the-Art Review
| Physical factors | Environmental factors | Operational factors |
|---|---|---|
| Pipe shape | pH | Hydraulic condition |
| Pipe slope | Road type | Infiltration/exfiltration |
| Pipe age | Root interference | Previous maintenance |
| Pipe depth | Soil corrosivity | Sediment level |
What are the other parameter need to consider in wastewater treatment design?
Thus, we need some important parameters such as capital amounts of; BOD 5 , COD, TSS, VSS, TKN, Total Phosphorus, and also an inlet flow to the facilities, and the temperature and pH of the wastewater to be treated.
What are the design velocities of sewer pipes?
Required velocities at design flow (Q) for sewer pipelines shall be minimum 2 fps and maximum 10 fps. The maximum velocity at design flow allowed in any sewer pipeline is 10 fps.
How do you calculate STP?
Determine the Minimum Population (P) using the same calculations as for sewage treatment plants; examples:
- A house with three bedrooms = a minimum 5 person system.
- A house with four bedrooms = a minimum 6 person system (5 + 1)
- A house with five bedrooms = a minimum 7 person system (5 + 2)
How do I increase MLSS in aeration tank?
The biofilm is retained in the aeration tank and thus one can achieve higher biomass density. MLSS can be increased by adding part of cow dung slurry. Macro nutrients ,Micronutrients which supports the microbial growth may be added.