Feasibility of recycling grey water for non-drinking uses in urban - - PowerPoint PPT Presentation

Feasibility of recycling grey water for non-drinking uses in urban communities

Singapore and Mexico City case study

BERNAL Andrea – Instituto Politecnico Nacional (Mexico) EWEMOJE Oluseyi – University of Ibadan (Nigeria) LIM Jun Wei – Nanyang Technological University (Singapore) SILVA Talita – Université Paris-Est (France)

Recycling grey water in urban communities project

11th World Wide Workshop Young Environm ental Scientists Arcueil (France), 10th June 2011

Outline

• Context

▫ Problem ▫ Proposal

• Objectives
• Work plan

▫ Year 1 ▫ Year 2 and Year 3

• Budget
• Participants

Recycling grey water in urban communities project

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Justification

• Urban areas: Growing population
• Urban water : local demand exceeds local supply
• Water scarcity
• Dependence on external sources

Recycling grey water……

• Reduced fresh water consumption (70%)
• Achieve water self-sufficiency
• Towards sustainable development
• Involvement of citizens in managing water

Recycling grey water in urban communities project

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Proposed Decentralized Grey Water Recycling S ystem

Recycling grey water in urban communities project

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Maj or research goals

• Study public perception
• Development of management system within

community

• Implement system in pilot scale
• Review effectiveness of recycling system
• Compare results of Singapore and Mexico City to

evaluate applicability of system

Recycling grey water in urban communities project

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S tudy sites

Diferent Sources: Reclaim ed Water Im ported from Malaysia RainWater Desalinization 9 m 3/ s Inside the city SINGAPORE 5.0 0 0 .0 0 0 citizens 154 l/ inh./ d Waste Water System 10 0 % of waste water Inside the city

Recycling grey water in urban communities project

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S tudy sites

Recycling grey water in urban communities project

Waste Water System Lago Texcoco 10 % of waste water 25 km far from city Fresh water system Sistem a Cutzam ala 19 m 3/ s 192 km far from city Groundwater Sources Quantitity: Unknown MEXICO CITY 20 .0 0 0 .0 0 0 citizens 20 0 l/ inh./ d (aprox) Not treated wastewater 6

Work plan

• Year 1

Recycling grey water in urban communities project

1 2 3 4 5 6 7 8 9 10 11 12 1 Community selection 2 Inhabitants assistance 3 Grey water assesment 4 Treatment plant details 5 Pilot design 6 Model management 7 Dissemination Year 1 Tasks Number

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Work plan

• Year 2
• Year 3

Recycling grey water in urban communities project

1 2 3 4 5 6 7 8 9 10 11 12 8 Inhabitants assistance 9 Pilot construction 10 Evaluation guidelines 11 Dissemination Number Tasks Year 2 1 2 3 4 5 6 7 8 9 10 11 12 12 Inhabitants assistance 13 System implementation 14 Evaluation of performance 15 Dissemination Number Tasks Year 3

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Budget (euros)

Recycling grey water in urban communities project

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Participants

IPN - MEXICO

NTU - SINGAPORE

LEESU - FRANCE

UFMG - BRASIL

U Rio Grande - BRASIL

• U. IBADAN

NIGERIA

STAKEHOLDERS FROM SINGAPORE

Public Utilities Aboard Location: NTU- Singapore Student Local Construction Companies Local Laboratories Local providers of materials

STAKEHOLDERS FROM MEXICO

CONAGUA – Water National Agency + STATE OF MEXICO Location: Colonia Texcoco Local Construction Companies Local Laboratories Local providers of materials

PARTNERS

Technical issues Management issues Social Issues

Recycling grey water in urban communities project

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Thank you for your attention!

Recycling grey water in urban communities project 11