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