A presentation by Ben Mann for the 2014 Case Western "Management of Humanitarian Emergencies" Course

1. Water and Sanitation in
Emergency Settings
Why Infrastructure Matters &
Behavior Change Is Critical

6. Supply DemandDemandSupply

7. Quantity Quality
Accessibility Reliability

11. Groundwater Wells

14. Rainwater Harvesting

16. Surface Water

18. Water Disinfection
• Boiling
– It works well in dirty or clean water
– Logistics at large scale very difficult
• Iodine
– 2 drops in 1 quart of water
– Not good in cloudy / muddy water
• Filters
– Marvelous on day one, but then …
• Chlorination
– Easy, mass disinfection
– Ineffective against cysts, worm ova

19. Breakpoint Chlorination

22. Collection Storage
Local
Treatment
Conveyance
Centralized
Treatment
Disposal

29. Collection Storage
Local
Treatment
Conveyance
Centralized
Treatment
Disposal

32. 1. Pump out sludge 2. Filter out solids materials 3. Filter the liquid

34. Solid Waste
• Collection
In home, Lead to transport
• Transportation
How and who away from home
• Ultimate Disposal
Sanitary landfill

35. Hospital Waste
• Solid Waste
Collection, Isolation, Transportation, Disposal
• Liquid Waste
Wash water; Toilets
• Ultimate Disposal

36. Drainage
• Stagnation is Bad
Insect breeding, Septic biology
• Internal to Community
Wash water, Food prep water, flooding
• Central System

37. Other Concerns
• Vectors
– Insects: mosquitos, flies, fleas
– Pests: dogs, cats, rats
• Environmental management
• Fire Protection
• Education Programs
• Body Disposal

39. Questions?
ben.mann@tetratech.com
@bhmann