STABILIZATION PONDS IN EAST AFRICA

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The wastewwater stabilization  ponds meant for sewage treatment   are  commonly found to be overloaded and will in most cases require expansion to cate for increased  detention and concurrent wastewater treatment  but this is not the case as land availability is rarely   there

Can any body out there recommend any available technology which is cheaper and appropriate to bring about  the realization of improved effluent

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4 Answers

I can guarantee a robust, ...

I can guarantee a robust, chemical-free, mechanical means for superior clarification performance. My contact email is yuri@baleen.com

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1 Comment

In      You are absolutely ...

In

     You are absolutely right — most stabilization ponds in East Africa are overloaded and land for expansion is rarely available.

A cheap and reliable solution is to retrofit existing ponds rather than expand them .

The most practical approach is:

1. Partial Aeration (Air Bubbles)
Introduce air (fine bubble aeration) at the inlet zone only .
This significantly improves BOD removal, reduces odours, and stabilizes performance — without high energy costs.

2. Simple Hydraulic Improvements
Add baffles to improve retention time and flow distribution at very low cost.

3. Optional Natural Enhancements
Floating wetlands or simple planted filters can further polish the effluent with minimal OPEX.

👉 This combined approach requires no additional land, low CAPEX, and simple operation — making it well suited for East African conditions.

For further details please contact:
Moshe Saldinger
msl@msl-global.com

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Yes your objective can be ...

Yes your objective can be achieved using Grander Water Revitalisation.. See these case studies 

https://vimeo.com/917207759?fl=tl&fe=ec
 

https://drive.google.com/file/d/1Tad1WC4qsvRRPAc9FI5DkRkmzt3QRGfk/view?usp=sharing

Please email me on jeremy@granderwater.co.uk and I will put you in direct contact with the correct agent for your region. 

Kind regards,

Jeremy Jones

Senior Manager UK and Northern Ireland 

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Hi Peter, A few years back ...

Hi Peter,

A few years back we bid a project in Uganda to do this and it was an upgrade from earthen ponds to containerized MBBR plants.  The project didn't go forward at that time and it did require investment.  I think people might give more specific answers if you posted flow rates and typical effluent quality that you see, to know whether or not things like a drum filter would make sense or not.  Lining the earthen ponds with a geomembrane (HDPE) liner, after installing gas release system underneath with floating laterals and diffusers hanging from them could also improve your treatment quality if it's not already aerobic.  I have former colleagues who could help you look into this further if you are interested.   

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