Wastewater treatment for a hotel
Wastewater treatment for a hotel
(OP)
Hi
I am looking for any references on how to size a small wastewater facility for a 10 storey hotel. The system description is as follows:
Regards
I am looking for any references on how to size a small wastewater facility for a 10 storey hotel. The system description is as follows:
- Wastewater from showers and wash basins is collected in a tank in the basement. (Untreated water tank)
- A treatment plant (Pumps, filters...etc) draws the waste water from the tank treats it.
- The treated water is collected in another tank (Treated water tank)
- The treated water is pumped up to a another tank on the roof where it is fed down by a combination of gravity and a booster pump depending on how far the outlet is below the level of the tank.
Regards





RE: Wastewater treatment for a hotel
The size of the tanks is based on the design capacity of the treatment tank, which is unknown.
There is no reason to have the "Untreated water tank". Wastewater should go directly into the treatment tank. So you can size this tank whatever you desire.
The "Treated water tank" is basically a pump out or break tank. A tank like this is normally sized for 5-10 minutes as a minimum, just to prevent constant pump cycling.
You have not supplied enough information to size the storage tank The size depends on factors such as:
• water demand
• firefighting needs
• capacity of make-up water supply
• contingency reserve
• hot water demand
• hotel size.
http://www.who.int/water_sanitation_health/hygiene...
RE: Wastewater treatment for a hotel
Thanks for your response. I might have not given enough information in my initial post so let me clarify further.
[ul]
*I got most of these ideas from here: http://greyter.com/commercial-services/overview-gc...
What I am considering regarding sizing this tank is to estimate the wastewater flowrate produced by the building then multiplying that with a suitable storage period. Currently I'm leaning towards a 24 hour holding period mentioned here: http://www.level.org.nz/water/wastewater/on-site-w...
Thank you for your response and any further advice is greatly appreciated
Regards
RE: Wastewater treatment for a hotel
You will have to decide on the particular equipment that you desire to install before you can develop the pumping and storage requirements as the general arrangement of the equipment made by various vendors varies.
You will also have to determine the maintenance requirements so that the area required for the equipment can be established. Some of these treatment systems will call for ceiling heights that are higher than typical.