Simulasi STP Gedung (Extended aeration (recycle)

Summary

This video provides an in-depth explanation of the flow diagram for a sewage treatment plant (STP), focusing on various stages such as extended aeration, sedimentation, and the treatment process. The speaker discusses how wastewater from sources like kitchens and toilets is processed through different tanks, including grease traps, aeration tanks, and sedimentation tanks. The video also covers the importance of air diffusion, bacterial growth, and chemical treatment to purify wastewater, as well as the maintenance required for pumps and tanks in the system. It's a comprehensive guide to STP operations and water treatment techniques.

Takeaways

• 💧 The video discusses a flow diagram of a Sewage Treatment Plant (STP), focusing on its components and processes.
• 🧪 The first step involves separating grease and oil from kitchen wastewater to ensure smooth treatment in subsequent stages.
• 🚽 Various wastewater sources, such as toilets, sinks, and urinals, are mentioned as inputs to the treatment system.
• 🔄 Equalization tanks are used to balance the flow and quality of incoming wastewater, with pumps facilitating the process.
• 🌬️ Aeration tanks provide oxygen to support the growth of aerobic bacteria, which helps break down the wastewater.
• 🌱 The biological treatment relies on aerobic bacteria to reduce pollutants and organic matter in the water.
• ⚖️ Sedimentation tanks allow solids, particularly sludge, to settle out by gravity, separating them from the treated water.
• 🧴 Chemicals such as disinfectants are added during treatment to eliminate harmful bacteria, especially pathogens.
• 🔄 The treated water goes through filtration to remove any remaining particles and improve its quality before release.
• 🚰 After all treatment stages, a portion of the water can be reused, while the rest is safely discharged into municipal systems.

Q & A

What is the main topic discussed in the video script?

The main topic discussed in the video script is the flow diagram of an STP (Sewage Treatment Plant), specifically focusing on the Extended Aeration process.

What is the purpose of the 'intermediate' mentioned in the script?

The 'intermediate' in the script refers to a storage area where water comes from the client and their associates before undergoing further treatment processes.

What is the role of the 'screen' in the STP process?

The 'screen' in the STP process is used to filter out particles that cannot be captured by other means, helping to prevent them from entering the next stages of wastewater treatment.

What is the function of the 'equalisation tank' in the STP?

The 'equalisation tank' serves to balance the quantity and quality of wastewater from various sources, such as toilets and urinals, to reduce sudden load fluctuations and ensure a steady flow for treatment.

What is the purpose of the 'diffuser' in the equalisation tank?

The 'diffuser' in the equalisation tank is used for mixing and providing air to prevent the formation of foul odors.

What does the 'aeration tank' do in the STP process?

The 'aeration tank' is where the main biological treatment process occurs. Oxygen is added to support the growth and development of aerobic bacteria, which help reduce the amount of organic waste in the wastewater.

How is oxygen supplied to the aerobic bacteria in the aeration tank?

Oxygen is supplied to the aerobic bacteria in the aeration tank through a 'blower' that distributes air.

What is the purpose of the 'sediment tank' in the STP process?

The 'sediment tank' is where the solid waste, or sludge, settles at the bottom through gravity, separating from the treated water.

What is the role of the 'sludge treatment' in the STP?

The 'sludge treatment' involves further processing of the sludge that settles at the bottom of the sedimentation tank, preparing it for disposal or further treatment.

What is the purpose of the 'chemical dosing' in the STP?

The 'chemical dosing' is a process where disinfectants are added to the treated water to kill any remaining bacteria, especially pathogens, and to reduce the organic content in the water before it is discharged.

What is the final step for the treated water in the STP process?

The final step for the treated water is to be discharged into the municipal sewer system or, in some cases, returned to the environment after meeting the required standards.