a. florquin , h. dentel , m. gaultier, c. ranchoux , e . rousseau , j . tormos ,
DESCRIPTION
ERHASYA Entrepreneurial project Rainwater HArvesting SYstem Auroville. A. Florquin , H. Dentel , M. Gaultier, C. Ranchoux , E . Rousseau , J . Tormos , T. Valois, S . Wardé. V. Borrell , S. Pistre , A. Richard, C. Batiot , F. Courant, M. Rousseau. Team O rganization. - PowerPoint PPT PresentationTRANSCRIPT
A. Florquin, H. Dentel, M. Gaultier, C. Ranchoux,
E. Rousseau, J. Tormos, T. Valois, S. Wardé
ERHASYAEntrepreneurial project RainwaterHArvesting SYstem Auroville
V. Borrell, S. Pistre, A. Richard, C. Batiot, F. Courant, M. Rousseau
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Team Organization
Project Leader
Anaïs Florquin
Hydrology
Anaïs Florquin
Emile Rousseau
Sociology
Jérémy TormosSerge Wardé
Health and Polution
Hélène DentelMaëllia Gaultier
Hydrogeology
Tiphaine ValoisCoralie
Ranchoux
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ERHASYA Team Members• Team Leader: Anaïs Florquin
Master 2 Water - HYDRE (Hydrology, Risks and Environment)
• Project Authority: Emile RousseauMaster 2 Water - HYDRE (Hydrology, Risks and Environment)
• Chief of staff: Serge Wardé Master 2 Water - Water and Society
• Communication Manager: Tiphaine ValoisMaster 2 Water - H3E (Qualitative and Quantitative Hydrogeology, and Environment)
• Assistant Communication Manager: Hélène DentelMaster 2 Water - Contaminants, Water and Health
• Assistant Communication Manager: Coralie Ranchoux Master 2 Water - H3E (Qualitative and Quantitative Hydrogeology, and Environment)
• Treasurer: Jérémy Tormos EspinozaMaster 2 Water - Water and Society
• Assistant Treasurer: Maéllia Gaultier Master 2 Water - Contaminants, Water and Health
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General Context
Before
After
1968Water resources : Underground Water- Domestic Water (collective fountains) - Industrial Water- Agricultural Water
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• Community based city
• Cosmopolitan (more than 50 nationalities)
• Particular economic system- Donations- Local activities
• No official water management structure
Socioeconomic context
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• Water treatment company: Aqua Dyn - Auroville
• Collective fountains 3 filtration systems:
Actual drinking water system
- Activated carbon- Sediments- Reverse osmosis
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Geological and hydrogeological context
Aquifers overexploitationDrop in groundwater levelSaltwater intrusion (proximity to Bengal
Bay)
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Water supply possibilities
How to guarantee a sustainable water supply in Auroville ?
Underground Water Wastewater Rainwater Sea Water
Overexploited
Saltwater intrusion
- Significant volume available- Natural quality
Expensive treatment
Recycling and reuse, Difficulty to
sustain a good quality
level
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Drinking water supply via rainwater harvesting
Hydrogeological context
Drinking quality
Hydraulic Management
Characterization of Vanur, Cuddalore and Kadaperikuppam aquifers evolution
Cost-benefit analysis and
project governance
Is rainwater a sustainable and risk-free source of drinking water supply in Auroville?
Rainwater harvesting and supply network establishment
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Pumping Overexploitation
problem
Solution Rainwater harvesting
Storage Treatment
Supplying
Drinking water
supply to Auroville
Management
Drinking quality
Hydraulic
Hydrogeological context
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Example of rainwater harvesting system
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Saltwater intrusion evolution
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COMMENT APPROVISIONNER EN EAU POTABLE LA VILLE
D’AUROVILLE ?
cPhreatic level evolution
Aquifers interactions and refill quantification
Hydrogeological context
Drinking water supply via rainwater harvesting
Characterization of Vanur, Cuddalore and Kadaperikuppam aquifers evolution
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Soc
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Cost-benefit analysis
Cost estimations
Governance
Water management structure
Dialogue and participation dynamic
Positive externalities and profit-making possibilities
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Management
Drinking water supply via rainwater harvesting
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CBA
Gorvernance
Actual state of water
management
Effects and stakes of a joint rainwater harvesting
management
Equipment purchase/labour and installation
costs
Energy expenses/
maintenance
Consumption level characterization (per
capita, use or community)
Establishment of three scenarios
Estimation of avoided costs (agricultural
production)
Methodology
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Treatment process
• Standards• Efficiency
Is rainwater a sustainable and risk-free source of drinking water supply in Auroville?
Potability of harvested rainwater
• Contaminants assessment
• Pollution risks
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Maintain a good rainwater quality from its harvesting to its effective supply, while minimizing health risks.
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Water Quality
Drinking water supply via rainwater harvesting
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Rainwater quality and drinking water supply
Chemical quality of rainwater
Microbiological pollutantsChemical pollutants
Standards
Treatment process
Con
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Soc
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MethodologyRainwater harvesting system
- Storage- Materials
Main partner: Aqua Dyn - Auroville
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Sizing Supply methods
Technics and choice of methods
Estimation of costs
Rainwater harvesting and supply network
establishment
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Hydraulic
Drinking water supply via rainwater harvesting
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Methodology
Supply methods: Study of 3 scenarios (collective
fountains, individual fountains, double network) in socioeconomic terms
Management
Con
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San
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Soc
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H3E
Sizing: Hydraulic formulas (hydrostatic,
linear and singular loads losses, etc.)
Materials characteristics (roughness)
Hydraulic courses and bibliography
Hydrological assessment:
Rain Evaporation
Estimation of costs: Materials prices Aqua Dyn fountain prices Restoration of actual
pipe network Management
Technics and materials choice: Sustainable and local materials etc. Profitability study of pico-turbines Bibliography and Auroville’s Future
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Feasibility study
Field Internship
Project follow-up
• Data• Bibliography• Rainwater harvesting system• Scenarios establishement• Estimation of costs
• Sampling• Modeling• Installation• Governance• Awareness
• Carrying out• Other field studies• Reproducibility
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- Integration of the project in the « Smarter Water Management » IBM program ?- IBM as a sponsor: support in financial search ?
logistics and materials support ?
ERHASYA IBM- Environmental project in an underdevelopped country- Logo display-> Communication
- Technical support- Credibility
-> Management and counseling
BUSINESS PLAN
Besoins
Partenaires stratégiques Activités Clés
NeedsNew water resource
Change in consumption habits
Strategic Partnership
s
CSR
BRGM
Auroville
Aqua Dyn
Enactus
…
Key Activities
Skills transfers
Relationships
Problem solving
Offer
Rainwater harvesting
Treatment and filtration
Management and supply
Network
Auroville1000 Pionniers
EnactusGDF Suez
AIGEartht@lent
C@P…
Beneficiaries
Aurovilians
Surrounding villages
Impacts
Decrease in the pressure
on underground
water resources
Awareness
Better drinking
water access
Creation of a jointed
management structure
Relations
Awareness
Training
Key resources
MatérialsSofwaresFollow-up
Costs structure
TransportRent and food
Materials and softwaresAssociation creation
Communication campaign
Income
Project financing by Auroville
In search of funds for the analysis part
IBM
IBM
Feasibility study
Field internship
Project follow-up
Sponsoring
IBM?
Thank You For Your Time
Encadrants : C. Batiot-Guilhe, V. Borrell, F. Courant, A. Richard , M. Rousseau
A. Florquin, H. Dentel, M. Gaultier,C. Ranchoux, E. Rousseau, J. Tormos, T. Valois, S. Wardé,
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Contacts
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• Audrey Richard : Institut Français de Pondichéry• Frédérique Grelot : IRSTEA• Luigi Zanzi: Auroville Representative• Nina Graveline: BRGM Gironde• Toby Neuman: Auroville Water Service• Gilles Boulicot: CSR Director• Bhagwandas: Aqua Dyn Founder• RainDrop: Association• Thierry Ruiz: Lecturer in Génie des Procédés• Alexandre Boisson: Indo-French Centre for
Groundwater Research team manager / Hydrogeologist BRGM
• Nathalie Dorfliger: BRGM Bangalore• G. Muthusankar: Institut Français de Pondichéry
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ERHASYA Info
•« 1000 Pionniers » online contest finalists
•October 2013 ENACTUS Seminar in Nantes
•Growing address book of professionals
•Multiple financial sources considered
•Website: erhasya.e-monsite.com/en/