The main document discusses problems with sewage systems including hydraulic overloading, insufficient staffing and maintenance, and low biomass levels. It proposes bioaugmentation, which is adding specific bacteria to increase the biomass and accelerate biodegradation, as a natural and cost-effective solution. Case studies demonstrate how bioaugmentation products from Avantu have remedied sewage problems by reducing sludge, odors and waterborne diseases at facilities in South Africa and Lesotho.

1. The main cause of the problems
 Hydraulically overloaded systems
 Insufficiently trained operators
 Lack of sewage maintenance & budget
 Insufficient staff to run the sewage
program & bureaucracy
 Insufficient retention time to biodegrade
 Low or incorrect biomass

2. Some methods to remedy the
sewage problems to remove
sludge

3. Another method to remedy the
sewage problems

4. Very dangerous way

5. Environmental way?

6. Still another

7. Another innovative way

8. Very expensive way

9. OR
 Do what nature has been doing for millions
of years – biologically
 Avantu’s concept of adding (augmenting)
the RIGHT bacteria (bio) to increase the
correct biomass to accelerate the
biodegradation process to
rectify the problem

10. BIOAUGMENTATION
 Bacteria/micro-organisms have been
scientifically selected for their biological
performance in the breaking down process of
sewage & other organic waste
 Balance/adjust the bacteria biomass “blend” to
remedy the problem
 The answer is in the
sewage problem itself

11. The Avantu Natural Way
The bioaugmentation products

12. 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.

13. Water & Sanitation
Local 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.

14. DWAF – Scientific Services Report-2003
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”.

15. The report further confirmed
that “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

16. 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

17. United Nations – Human
Development Report 2006
“Every $1 spent in the sewage sector
creates on average another $8 in
costs averted
and productivity gained.”

18. Avantu Successes -
HloHlo Ponds - Lesotho

19. Avantu Successes -
HloHlo Ponds- Lesotho
1 week after
dosing started

20. Avantu Successes -
HloHlo Ponds- Lesotho
2 week after
dosing started

21. Avantu Successes -
HloHlo Ponds- Lesotho
2 week after
dosing started

22. Avantu Successes -
HloHlo Ponds - Lesotho
4 weeks after
dosing started

23. Avantu Successes -
HloHlo Ponds - Lesotho
6 weeks after
dosing started

24. Dispatch Maturation Ponds – Case Study
Congested Maturation/Holding Pond with years of buildup of stabilized sludge.
The sludge was not breaking down as fast as expected
so analysis of the effluent was taken, the results were:
Total Dissolved Solids 1672; Magnesium 177 and
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

25. Humansdorp Sewage Treatment
Works
Aeration Chambers before
dosing commenced

26. Humansdorp Sewage Treatment
Works
4 weeks after
dosing commenced