The upgradeable Blair VIP (uBVIP) - SuSanA

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Planting trees around shallow B<strong>VIP</strong> pit toilets Where trees are to be planted around the toilet , the roots will come into contact with pit liquor seeping out of the toilet pit faster if the brick wall is made deliberately leaky from the side walls. It is also more effective if the pit is only partly lined with bricks (see earlier slides). It is now established that certain trees are able to withdraw nutrients from the soil surrounding an active toilet . Gum trees are particularly effective at doing this as well as banana and mulberry. <strong>The</strong>se important trees can derive nutrients from the pit contents even whilst the toilets are in use. Also it is possible that the absorption of pit liquor from the soil surrounding and under the pit may help to reduce ground water contamination.
COSTS Slab and substructure Cement used to line the pit and make the slab. One 50kg bag of Portland cement at about USD11.00 Bricks. About 500 for the substructure and 500 for the superstructure at about USD 40 per 1000. Roof Timber about USD 7.00 and tin sheet about USD15.00 Total USD 22 Extra cement for floor and internal plaster Small part of an extra bag of cement Labour per toilet In Epworth about USD 40.00 per unit
Page 1 and 2: The upgradeable Blair VIP (uBVIP) -
Page 3 and 4: Why the uBVIP has been introduced?
Page 5 and 6: What is the uBVIP? The uBVIP is a c
Page 7 and 8: The aim is get much wider coverage
Page 9 and 10: The “start up” technology consi
Page 11 and 12: The pit is capped by a 1.2m concret
Page 13 and 14: Using a single 50kg bag of Portland
Page 15 and 16: The uBVIP is built in three stages.
Page 17 and 18: At first the toilet may be of the s
Page 19 and 20: Fly and odour control in pre-BVIP t
Page 21 and 22: Building the BVIP in stages 1. Cons
Page 23 and 24: Making the concrete slab Making the
Page 25 and 26: Stages of construction - line the p
Page 27 and 28: Stages of construction - lining the
Page 29 and 30: Stages of construction - lining the
Page 31 and 32: Stages of construction - fitting th
Page 33 and 34: Configuration of spiral brick super
Page 35 and 36: Configuration of spiral brick super
Page 37 and 38: Building the spiral wall using the
Page 39 and 40: Making the roof with timber frame a
Page 41 and 42: Specialised pit linings. 1. Partial
Page 43: Specialised pit linings. 2. subsurf

The upgradeable Blair VIP (uBVIP) - SuSanA

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