Rio Das Pedras WATER & WASTE MANAGEMENT
SITE DIAGNOSIS
SITE SECTIONS
SITE SECTIONS
SECTION A - A
SECTION B - B
CURRENT STATE INTERVENTIONS: CEHAB Sanitation Initiative R$64.7 million investment in:● ● ● ● ● ● ●
sanitation installation of sewer networks sewage treatment stormwater run home connections channel dredging urbanization & paving the entire area
Works will benefit 7000 families.
FLOODING INFLUENCE AREA
RIVER
RIO DAS PEDRAS FLOODING#1
FLOODING#2
FLOODING#3
FLOODING SCENARIO
STAKEHOLDER ANALYSIS
PROPOSED INTERVENTION STRATEGIES SEWAGE AND SANITATION
SEWAGE DISPOSAL, RAIN WATER DRAINAGE & WATER SUPPLY PROVISION
Proposed pre-engineered mobile water treatment trucks
Standard Septic/Treatment Trailer Layout rated at 2500 gpd
Standard Septic Trailer Layout rated at 5000 gpd
Standard Treatment Trailer Layout rated at 2500 gpd
Source: http://www.quanics.net/synergy.html
SEWAGE DISPOSAL AND TEMPORARY WASTE WATER TREATMENT DIAGRAM
CHANNELIZATION STRATEGY AND INTEGRATED BUFFER ZONE
Channelize the river as solution to control the flow and to keep clean the river. Actually there are five hand-made bridges, we propose to replace it taking care about the view impact and in same time creating filters that can mitigate in advance the water during the flood time.
Biofilters can be used to purify the water and to control the pollution. The river bottom as well, should be cleaned removing the waste.
Newton Creek (Brooklyn, USA)
Llobregat (Barcelona, Spain)
Montello SPA (Bergamo, Italy)
ClearAquaTech (Tamil Nadu, India)
LONG TERM INTERVENTION: Local Network of Biogas Plants
*Funding: CEDAE
LONG TERM INTERVENTION: Local Network of Biogas Plants
*Funding: CEDAE + Developer
LONG TERM INTERVENTION: Local Network of Biogas Plants
*Funding: CEDAE + Minha Casa Minha Vida
LONG TERM INTERVENTION: Expanded Network of Biogas Plants
CURRENT URBAN WATER CYCLE
PROPOSED URBAN WATER CYCLE
PROPOSED INTERVENTION STRATEGIES FLOOD IMPACT MITIGATION
FLOODING SCENARIO CASE STUDY: INDIA
FLOOD ACTION PLAN
Workshops - participatory approach, community involvement, Awareness/education program - build back better, accommodative construction methods, training courses Alarm system - operations procedure well communicated to the residents, warning sirens available in more locations Re-creating wetland boundaries along the edges of the channel (buffer zone expansion) Best mix of strategies
Source: www.unwater.org
INFORMAL FLOOD MITIGATION MEASURES AND BUILDING RECOMMENDATIONS
INFORMAL FLOOD MITIGATION MEASURES AND BUILDING RECOMMENDATIONS Indicators to be measured and communicated to residents
Physical measures for Permanent resistance
Physical measures for Temporary resistance
To prevent water entering doors/ windows: - Auto-barriers(expensive) - Water-resisting external doors/windows - Sealant around external doors/windows
To prevent water entering doors/ windows: - Entrance door/window barriers (expensive) - Sandbags/absorbent bags - De-mountable barriers (expensive) - FloodSkirts (expensive)
To prevent water penetrating walls: - Re-pointing, repair of cracks in walls, seal service outlets - Covering weep holes - Wall sealant To prevent water entering service pipes - Non-return valves for wastewater pipes - Seal around service entrypoints.
To prevent water penetrating walls: - Airbrick covers To prevent water entering service pipes - Toilet plugs - Bolt-down inspection covers - Appliance vent covers - Pipe bungs
Resilience measures to limit water damage - Use water compatible building materials - Remove vulnerable items from flood risk (raise utilities and appliances, use removable fixtures and fittings, relocate or cover values) - Expel water (sump and pump)
OBRIGADAS!