The main cause of the problems
Hydraulically overloaded systems Hydraulically overloaded systems
Insufficiently trained operators Insufficiently trained operators
Lack of sewage maintenance & budgetLack of sewage maintenance & budget
Insufficient staff to run the sewageInsufficient staff to run the sewage program & bureaucracy program & bureaucracy
Insufficient retention time to biodegradeInsufficient retention time to biodegrade
Low or incorrect Low or incorrect biomassbiomass
Some methods to remedy the sewage problems to remove
sludge
Another method to remedy the sewage problems
Very dangerous way
Environmental way?
Still another
Another innovative way
Very expensive way
OR Do what nature has been doing for millionsDo what nature has been doing for millions
of years – of years – biologicallybiologically
Avantu’s concept of adding (augmenting)Avantu’s concept of adding (augmenting) the RIGHT bacteria (bio) to increase the the RIGHT bacteria (bio) to increase the correct biomass to accelerate the correct biomass to accelerate the biodegradation process to biodegradation process to rectify the problem rectify the problem
BIOAUGMENTATION Bacteria/micro-organisms have beenBacteria/micro-organisms have been scientifically selected for their biological scientifically selected for their biological performance in the breaking down process of performance in the breaking down process of sewage & other organic waste sewage & other organic waste
Balance/adjust the bacteria biomass “blend” toBalance/adjust the bacteria biomass “blend” to remedy the problem remedy the problem
The answer is in the The answer is in the sewage problem itself sewage problem itself
The Avantu Natural WayThe bioaugmentation products
Acceptance of “Bioaugmentation” 1995
16 000 Pit toilets & Aqua-Privies were dosed and remedied in Ivory Park - 1995.
Selected locals were trained to implemented the dosing under supervision.
The cost was approximately 30% of the Vacuum Tanking cost normally used.
Water & SanitationLocal Government Digest – 1996
After a number of observations of the success of Avantu’s “Pitking” Bioaugmentation product, the attached article was published.
During this period “Fatking” was developed.
Dr. P L Kempster evaluated Avantu Bioaugmentation products.
The report states that “bioaugmentation is a well recognised and researched method of speeding up biological degradation of domestic waste”.
DWAF – Scientific Services Report-2003DWAF – Scientific Services Report-2003
The report further confirmedthat “Bioaugmentation”
Biodegrades solid sewerage in basic systems, Pit toilets, septic tanks
Removes the smell within 24 hours
Prevents the spreading of waterborne diseases including cholera.
Accelerates the biodegradation process in hydraulically overloaded systems
Sewerage System’s final effluent will conform to discharge standard
Avantu Products Rectify All Sewage Organic Problems: Pit Latrines & VIP Septic Tanks, Fat Traps & Aqua-Privies All sections of Sewage Treatment Works Sewage Spills in Rivers & Dams Hydraulically overloaded STW Kick starts new systems Rectifies systems that have had hazardous
chemicals kill off the biomass Control Waterborne diseases and
Mosquito & Black fly larvae
United Nations – Human Development Report 2006
“Every $1 spent in the sewage sector creates on average another $8 in costs avertedand productivity gained.”
Avantu Successes - HloHlo Ponds - Lesotho
Avantu Successes -HloHlo Ponds- Lesotho
1 week after dosing started
Avantu Successes -HloHlo Ponds- Lesotho
2 week after dosing started
Avantu Successes -HloHlo Ponds- Lesotho
2 week after dosing started
Avantu Successes - HloHlo Ponds - Lesotho
4 weeks after dosing started
Avantu Successes - HloHlo Ponds - Lesotho
6 weeks after dosing started
Dispatch Maturation Ponds – Dispatch Maturation Ponds – Case StudyCase Study
Congested Maturation/Holding Pond with years of buildup of stabilized sludge.Congested Maturation/Holding Pond with years of buildup of stabilized sludge.
The sludge was not breaking down as fast as expected The sludge was not breaking down as fast as expected so analysis of the effluent was taken, the results were: so analysis of the effluent was taken, the results were: Total Dissolved Solids 1672; Magnesium 177 and Total Dissolved Solids 1672; Magnesium 177 and Ammonia 250, very difficult sludge to biodegrade. Ammonia 250, very difficult sludge to biodegrade.
The senior consulting engineer, Johan Barnard, confirmed that the bioaugmentation had reduced the sludge by 80%, email above
Humansdorp Sewage Treatment Works
Aeration Chambers before
dosing commenced
Humansdorp Sewage Treatment Works
4 weeks after dosing commenced
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