Presentation to the Oireachtas Committee on the
Environment, Culture and the Gaeltacht,
8th April 2014,
“Towards A Zero Waste Approach
to Water”
Liam McCarton, Dr. Sean O’Hogain,
DTC Research Group, School of Civil Engineering,
Dublin Institute of Technology
www.dit.ie/dtc
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Scoil na hInnealtóireachta Sibhialta (ITBÁC)
Research Group for the Promotion of Sustainable
Environmental, Water & Sanitation Technologies
Ni bhaineann Nuálaíocht
le Teicneolaíocht amháin
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Tionscnaimh / Projects
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www.dit.ie/dtc
Nualaíocht i nDearadh do Bhailiú Báistí / Innovation in Rainwater
Harvesting Design
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Pilot Rainwater Harvesting Study 2005 – 2009, DOEHLG
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School Rainwater Harvesting Study 2009-2012, DOEHLG
Córáis do Chóireáil Fuíolluisce – Gan aon sceitheadh / Zero Discharge Wastewater
Treatment Systems
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Reed Bed WWT System, 1996-2002, - Fingal Co. Co.
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Hybrid Reed Willow Bed WWT System, 2007-2012 - South Dublin Co. Co.
Teicneolaíocht Chuí / Appropriate Technology
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Sierra Leone , 2009-2013 – EU Funded Program
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Water, Wastewater, Solar, Wind, Pump technology, 2011, EMAS, Bolivia,
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Low Cost Pump Design , 2012 CANZEE, UK
Cúrsaí Traenála / Training Courses
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TECSPAR Technology Transfer Project, 2005-2008 EU Alfa Programme in
association with Polytechnic University of Catalunia, Spain and the
University of Padua, Italy and University of Medellin, Colombia, University
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of San Luis Potosi, Mexico and the University of Conception, Chile.
Traditional System
•Traditional approach focused
on Water Supplier
•Network Leakage
Detection
•Treatment Optimisation
Traditional System
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A Zero Waste Approach to Water
Reduce / Reuse / Recycle / Disposal
For WATER END USER
- Water Efficiency, Demand Management
- Rainwater Harvesting
- Natural Wastewater Systems
- SUDS, WSUD
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A Zero Waste Approach to Water
Reduce / Reuse / Recycle / Dispose
150 litres / person / day
Hot Water
System
24%
36 litres
50 litres
Toilet
33%
64 litres
Rainwater
Harvesting
Kitchen
43%
Mains water Supply
Harvested Rainwater Supply
Harvested Rainwater Supply
(with treatment)
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Suiteáil Tí, Contae Cheatharlach
Domestic Installation, County
Carlow.
Comhpháirteanna don Báiliú Báistí
RWH System Components
1. Díon an Tí / Roof Surface
2. Scagaire Báistí / Rainwater Filter
3. Umar Stórála Báistí / Rainwater Storage
Tank
4. Caidéal / Pump
5. Córas Bainistíochta Soláthar / Supply
Management System
6. Umar Cinn Báistí / Rainwater Header Tank
7. Umar Cinn don bPríomhlíonra Uisce /
Mains water Header Tank
8. Píobán Sceithe - córas draenála dromchla
Overflow to surface water drainage system
9. Barrlíonadh Uisce ón bPríomhlíonra /
Mains water top-up
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Bailiú Báistí: Torthaí
Torthaí Iomlán Drólannach /
Total Coliform Results
1400
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1200
7
1000
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MPN/100ml
800
600
400
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4
3
July
June
May
Mar
Feb
April
Month Sampled
Jan
Dec
Nov
Oct
Sep
Aug
Jul
Jun
May
Apr
1
Feb
0
Mar
2
Jan
200
0
Month sampled
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Torthaí Bachaillín Drólannach Faecach
Faecal Coliform Results
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cfu/100ml
MPN/100ml
Torthaí E. Coli / E. Coli Results
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Caighdeán Uisce/Water Quality:
Caighdeáin Uisce Snámhna an AE:
EU Bathing Water Stds.
100%
Caighdeáin Uisce Óil an AE:
EU Drinking Water Stds.
10
37%
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Supplied 100% of non-potable use
0
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Month Sampled
Beartais Spreagtha san AE:
100,000 installations , market 2009 €496 million
An Ghearmáin
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Bailítear Cáin Bháistí ón méid uisce a ritheann chun srutha isteach sa séarach
stoirme áitiúil ó bhrat dromchla neamh-thréscaoilteach an tí.
Rain taxes collected for the amount of run off into the local storm
sewer that is generated from the impervious surface cover of the property.
An Fhrainc
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Tá lacáiste cánach de 40% suas go dtí €5,000 curtha ar fáil do Chóráis Bailithe
Báistí
A tax rebate of 40 % up to a maximum of € 5000 is be provided to all RWH
systems.
An Bheilg
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Reachtaíocht Náisiúnta – Caithfidh Córais Bailithe Báistí a bheith
bhfoirgnimh nua go léir do leithris agus d’úsáid uisce
lasmuigh.
National Legislation - all new constructions need to have RWH
systems installed for the purpose of flushing toilets and external
water uses.
suiteáilte i
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A Zero Waste Approach to Water
Reduce / Reuse / Recycle / Dispose
Feidhmiú an Leapa Sailí
Níl aon Sceitheadh
Zero Discharge
Níl aon Mhonatóireacht
No monitoring
Natural Wastewater
Treatment
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Moodie, M. (1992)
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Innovation in thinking
leads to innovation in technology
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Singeapór / Singapore – A zero waste approach
to water in action
Bailiú Báistí /
Rainwater
Harvesting
Bailiú Báistí ó cheantair
cosanta agus
neamhchosanta /
collected from unprotected
and protected catchments
Uisce
NEWater
Díshalannú /
athshlánaithe
Impórtáilte - Uisce
ó thionscail
Desalination
water for
Imported - Reclaimed
- Athshlánaithe
non potable industry
- Uisce na farraige
Water
(amach anseo)
- ó Mhalaeisia
- Malayasia
-
Reclaimed
seawater (future)
“Water dominated every Government policy”
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Prime Minister Lee Hsien Loong
Philadelphia– Community Involvement in Design /
Operation / Management of City Water Catchments
“As we evolve Philadelphia into
America’s most sustainable and
green city, the opportunities ahead
will be limited only by the confines
of our imagination and the extent
of our determination”
Philadelphia Water Commission
“Cities across America are now
looking at Philadelphia as the
preeminent model for managing
stormwater through green
infrastructure”
Pennsyvalnia Env. Council
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Green Option
(Philadelphia Green
City Clean Water)
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Ní Custaiméir / Tomhaltóir an Pobal
Community is not just a Consumer
/ Customer
Pobal / Community:
Foireann Deartha / Design Team
Foireann Airgeadais / Finance
Team
Feidhmiú
&
Cothabháil
/
Operation & Maintenance
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A Zero Waste Approach to Water
Reduce / Reuse / Recycle / Disposal
For WATER END USER
- Water Efficiency, Demand Management
- Rainwater Harvesting
- Natural Wastewater Systems
- SUDS, WSUD
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“A Zero Waste Approach to Water ”
To develop an integrated water strategy
for Ireland we need:
• Innovative thinking
• Sustainable and resilient technologies
• Education curricula reform
• Co-ordinated Government and Community
Action
• Appreciation of rainwater and wastewater
as a valuable resource
• Design Water In rather than Water Out
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Reduce, Reuse and Recycle Pilot Studies
Future Design - Water In rather than Water Out
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Best International Practice
Innovations in Rainwater Harvesting
New build versus retrofit
Water Quality and Quantity
Evaluate Cost Benefits to the
Consumer and Producer
Barriers and Incentives
Vocational Training
Guidelines & Technical Standards
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Monitoring and Evaluation
Water / Wastewater in Gaeltacht Regions
• Appropriate Resilient Technologies for
– Water / Wastewater Treatment, Conservation and
Reuse
• Meeting peak demands from tourism
• Island supply
• Vocational training
• Job creation
• Monitoring and Evaluation
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