An overview presentation of the ways to manage water on land to prevent erosion, direct water, and to capture and store water in the cheapest storage there is--right in the ground!
6. Essential Properties of Water
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Water flows at right angles to contour
Faster flow = greater capacity to carry
pollutants & sediments and more power
to cause erosion
●
7. Essential Properties of Water
●
Water flows at right angles to contour
Faster flow = greater capacity to carry
pollutants & sediments and more power
to cause erosion
●
It is much easier to manage small
volumes of slow moving water than it is
to manage large volumes of fast
moving water
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13. “The BioSand Filter uses
both physical and
biological mechanisms to
remove the following
contaminants: more than
96% of fecal coliforms,
100% of protozoa and
helminthes; 50-90% of
organic and inorganic
toxicants; more than 75%
of iron and manganese;
and suspended sediments.”
- UN FAO
37. Greywater Rules
1. Never let greywater collect on the surface
2. Never pour bleach, drain cleaner, or any
other toxic material down any drain
connected to a greywater system
38. Greywater Rules
1. Never let greywater collect on the surface
2. Never pour bleach, drain cleaner, or any
other toxic material down any drain
connected to a greywater system
3. Always protect surface water