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Sanitation: What’s the Real Problem? Duncan Mara, University of Leeds
It can’t be technology! We have a small range of proven sanitation technologies: Arborloos Single-pit VIP latrines eThekwini latrines Pour-flush latrines Household-level biogas latrines Simplified sewerage Low-cost combined sewerage Community-managed sanitation blocks
An urbanizing world
It can’t be technology! We have a small range of proven sanitation technologies: Arborloos Single-pit VIP latrines eThekwini latrines Pour-flush latrines Household-level biogas latrines Simplified sewerage Low-cost combined sewerage Community-managed sanitation blocks
Simplified sewerage Rigorous hydraulic design based on: a minimum sewer diameter of 100 mm a minimum tractive tension of 1 N/m2 a minimum value for peak wastewater flow of 1.5 litres/second ,[object Object],[object Object]
Simplified sewerage Rigorous hydraulic design based on: a minimum sewer diameter of 100 mm a minimum tractive tension of 1 N/m2 a minimum value for peak wastewater flow of 1.5 litres/second ,[object Object],[object Object]
Best option         in                          poor areas
Natal, Northeast Brazil, 1983 Simplified sewerage
Simplified sewerage                   Monthly cost to householder State of Rio Grande do Norte in northeast Brazil, January 2008: Minimum water tariff:          BRL 18.10 (USD 10.00) 35% surcharge for simplified sewerage         BRL 6.34 (USD 3.50)         (1.7% of minimum wage)
Simplified sewerage                   Monthly cost to householder Dublin Statement “The basic right of all human beings to have access to clean water and sanitation at an affordable price” State of Rio Grande do Norte in northeast Brazil, January 2008: Minimum water tariff:          BRL 18.10 (USD 10.00) 35% surcharge for simplified sewerage         BRL 6.34 (USD 3.50)         (1.7% of minimum wage)
Community-managed  sanitation block                           in Kibera Capital cost: USD 8 per person
Community-managed  sanitation block                           in Kibera Capital cost: USD 8 per person
Actually it’s a water & sanitation  block
Payment on a  per-use basis GBP 1 = KES 130 USD 1 = KES 80 Use toilet: 2p Shower: 4p 20 litres water: 2p
Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
The blame now rests with …
The blame now rests with … … developing-country gov’ts
The blame now rests with … … developing-country gov’ts that have chosen not to invest in water & sanitation for all their citizens and to passively accept the resulting morbidity and mortality
The blame now rests with … … developing-country gov’ts that have chosen not to invest in water & sanitation for all their citizens and to passively accept the resulting morbidity and mortality and chosen not to treat wastewater and not to prevent the use of untreated wastewater for crop irrigation
Plenty of very fine words, but not much action
However, some countries have                    done very well
Some countries have                    done very well MALAYSIA in 2008 Urban: 96% improved and 4% shared sanitation Rural: 95% improved and 4% shared sanitation and 1% OD THAILAND in 2008 Urban: 96% improved and 4% shared sanitation Rural: 95% improved and 4% shared sanitation and 1% OD
Some countries have                    done very well MALAYSIA in 2008 Urban: 96% improved and 4% shared sanitation Rural: 95% improved and 4% shared sanitation and 1% OD THAILAND in 2008 Urban: 95% improved and 5% shared sanitation Rural: 96% improved and 4% shared sanitation
Have MALAYSIA and THAILAND (and all the industrialized countries) done so well because they “think clean”? ,[object Object],[object Object],[object Object]
What’s stopping other countries doing as well as Malaysia and Thailand? Probably several/many reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important      −“No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important      −“No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important      − “No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important      − “No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important      − “No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
Thankyou
Sanitation: what's the real problem?
Sanitation: what's the real problem?
Sanitation: what's the real problem?
Sanitation: what's the real problem?
Sanitation: what's the real problem?

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Sanitation: what's the real problem?

  • 1. Sanitation: What’s the Real Problem? Duncan Mara, University of Leeds
  • 2. It can’t be technology! We have a small range of proven sanitation technologies: Arborloos Single-pit VIP latrines eThekwini latrines Pour-flush latrines Household-level biogas latrines Simplified sewerage Low-cost combined sewerage Community-managed sanitation blocks
  • 4.
  • 5. It can’t be technology! We have a small range of proven sanitation technologies: Arborloos Single-pit VIP latrines eThekwini latrines Pour-flush latrines Household-level biogas latrines Simplified sewerage Low-cost combined sewerage Community-managed sanitation blocks
  • 6.
  • 7.
  • 8.
  • 9. Best option in poor areas
  • 10. Natal, Northeast Brazil, 1983 Simplified sewerage
  • 11. Simplified sewerage Monthly cost to householder State of Rio Grande do Norte in northeast Brazil, January 2008: Minimum water tariff: BRL 18.10 (USD 10.00) 35% surcharge for simplified sewerage BRL 6.34 (USD 3.50) (1.7% of minimum wage)
  • 12. Simplified sewerage Monthly cost to householder Dublin Statement “The basic right of all human beings to have access to clean water and sanitation at an affordable price” State of Rio Grande do Norte in northeast Brazil, January 2008: Minimum water tariff: BRL 18.10 (USD 10.00) 35% surcharge for simplified sewerage BRL 6.34 (USD 3.50) (1.7% of minimum wage)
  • 13.
  • 14. Community-managed sanitation block in Kibera Capital cost: USD 8 per person
  • 15. Community-managed sanitation block in Kibera Capital cost: USD 8 per person
  • 16. Actually it’s a water & sanitation block
  • 17. Payment on a per-use basis GBP 1 = KES 130 USD 1 = KES 80 Use toilet: 2p Shower: 4p 20 litres water: 2p
  • 18. Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
  • 19. Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
  • 20. Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
  • 21. Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
  • 22. Where does the blame now lie? … the blame for: the 1−2 billion without an adequate water supply the 3−4 billion without adequate sanitation the 1.15 billion open defecators the very low %age of wastewater treated
  • 23. The blame now rests with …
  • 24. The blame now rests with … … developing-country gov’ts
  • 25. The blame now rests with … … developing-country gov’ts that have chosen not to invest in water & sanitation for all their citizens and to passively accept the resulting morbidity and mortality
  • 26. The blame now rests with … … developing-country gov’ts that have chosen not to invest in water & sanitation for all their citizens and to passively accept the resulting morbidity and mortality and chosen not to treat wastewater and not to prevent the use of untreated wastewater for crop irrigation
  • 27. Plenty of very fine words, but not much action
  • 28. However, some countries have done very well
  • 29. Some countries have done very well MALAYSIA in 2008 Urban: 96% improved and 4% shared sanitation Rural: 95% improved and 4% shared sanitation and 1% OD THAILAND in 2008 Urban: 96% improved and 4% shared sanitation Rural: 95% improved and 4% shared sanitation and 1% OD
  • 30. Some countries have done very well MALAYSIA in 2008 Urban: 96% improved and 4% shared sanitation Rural: 95% improved and 4% shared sanitation and 1% OD THAILAND in 2008 Urban: 95% improved and 5% shared sanitation Rural: 96% improved and 4% shared sanitation
  • 31.
  • 32. What’s stopping other countries doing as well as Malaysia and Thailand? Probably several/many reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important −“No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
  • 33. What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important −“No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
  • 34. What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important − “No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
  • 35. What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important − “No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector
  • 36. What’s stopping other countries doing as well as Malaysia and Thailand? Probably several reasons − for example: Politicians and senior civil servants don’t think that ‘thinking clean’ is that important − “No solutions without political solutions” Technical ignorance of local engineers and planners Too much corruption in the water sector