Hi
Does anyone have experience in designing multi-story wastewater treatment plants?
In fact, I want to reduce wastewater treatment footprint because we have a problem in terms of land.
Mahsa Sadeghi Vazin
I could tell you many "stories" about wastewater treatment plants (WWTP's) but I guess that mean "storey" (multi-level). As a matter a fact we designed one about 30 years ago in South-Korea where the footprint was so small that we installed a 3-level/storey WWTP including a stack of 2 final clarifiers (one on top of the other). Many more levels could be added as needed. This is a matter of proper hydraulic design (gravity flow and pumped flow) combined with efficient construction design (civil & structural works).
Kind regards, Bruno
www.modelengineering.eu
Good day,
About your question, there are several technologies in the wastewater treatment plant like Sequencing Batch Reactor (SBR) process described by Ardem and Lockett (1914). Please I attached a file below that Can help you. Mahsa Sadeghi Vazin
Hi! I don't have experience in this kind of project, but maybe this article can help you: Article Design of Multi-Story Sewage Treatment Facilities
The first measure is to discard soaps the ones made by addition of chemicals Etc..( Acidic or Alkaline, can bio chemicals )
Instead can use Bio- enzymes that do the same function as chem. soaps
Use of bio enzymes makes the waste water ie effluent more easily processed and the processed water is more compliant for all standards and fit to reuse for irrigating agri farms, and for flushing toilets use. Otherwise good potable water is set aside to be used for flushing sewage in toilets after use, to the tune of 5L 10L 15L .
Now the effluent quantity ie volume of flow in cbm is reduced, and more constant and is predictable.
It's capacity is fixed and STP is designed and implemented with reuse of effluent water and bio- sludge solids, if its rich or more concentrated then could mean some gas (CH4) ie BG Biogas is possible, to be tapped.
Accordingly, multi storey houses with different number of rooms are dealt with and ZLD ie zero liquid discharge is followed with for benefit of communities..
Not got any response of my solution given for your problem
Want Dr. MAHSA JADGINI VAZI
to respond with her/ his views.
Comments please welcome..
Prof AjitSeshadri
Vels University, Chennai, INDIA
Bruno Peeters
Thank you very much for your reply.
I would like to know more about your treatment plant details and operating experiences.
Mahsa Sadeghi Vazin
Thanks for your appreciation.
I would be happy to send you more details via email.
Please contact me directly at [email protected] as to reply to you.
Kind regards,
Bruno
Siyanatou ABIKE Seriki
Thank you greatly for your guidance and attention.
Only indirect - a two-storey SBR system had to operate the upper deck at reduced capacity, because wind kept lifting the MLSS out of the SBR. The designers tried, when this problem became apparent, installing wind deflectors, but they were not succesful.
They also had another problem - because the SBRs were now in a location affected by strong winds, they also caused a widespread odour problem to the local area.
I don't know what the ultimate solution was; the friend I had working on the site moved on.
Jeremy Dudley
Most interesting to learn that (strong) winds can lift the MLSS out of a SBR.
So far, we only experienced wind effects on large clarifiers resulting in unequal overflow at higher levels of light suspended solids (TSS) in the effluent.
I assume that the biosludge in this (large) SBR was very light (high SVI) then?
Bruno Peeters My friend said that they managed to get waves formed when the tanks were full, and I guess it was those that caused the spillage - so they dropped the level. And yes, I think that they had high SVI. It was a coastal site, if that makes winds any worse.
The wastewater treatment plant of my town is a 2-storey SBR, too.
Photo: Main inlet on the upper storey
I have designed few STP having bar screen & grit settler & Equlisation at top floor (2nd) along with, which fed to UASB under constant flow rate by gravity, UASB is located just beneath EQt tank is half underground half above ground, thus treated water is further polished by Extended Aeration and tube settler and Treated water storage for tertiary treatment all having hydraulic gradient thereby reducing foot print along with power requirment. Blower and other control units are at 1st floor.
All roofs of tanks can have Green grass ( elephant grass for fodder) cover 9" to 12" height.
If phyto R is done, have floating beds for ease of crop for re use grass fodder foliage Etc.
The total area can take the shape of Green Campus aiding in communities services viz CTCs, Rest in Rooms, Reading rooms, sit- in lounges Etc.. Wl wshs..
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