DEVELOPING A CORPORATE
WATER MANAGEMENT STRATEGY
Vestal Tutterow
Senior Technical Consultant (o) 703.748.7248
PRESENTATION OUTLINE
•
Introduction
•
Drivers for and Barriers to Water Management
•
Water Uses in the Manufacturing Sector
• Cooling
• Boiler Make-up
• Processes
•
Developing a Water Management Strategy
• Examples
AUTHORS
Eoin O’Driscoll, PhD – Energy Analyst
Jackson Stubbs – Senior Analyst
INTRODUCTION
Water is an integral part of manufacturing facility operations and
management. Primary uses for water in the U.S. manufacturing
sector include:
•
Processing
•
Cleaning
•
Cooling
•
Diluting
•
Transportation
•
Energy
Demand for reliable water sources will grow as supply diminishes
over the next 15 years, highlighting the need for improved water
management strategies.
BARRIERS TO WATER MANAGEMENT
Water flows below the radar of many corporate managers and
corporate boards. The primary barriers to prioritizing improved
water use efficiency are:
•
Low cost of water
•
Lack of awareness of risks posed by water scarcity and impaired
water quality
DRIVERS FOR WATER MANAGEMENT
The business case for corporate water management for most
organizations can include:
•
Water cost savings
•
Corollary benefits (i.e., energy savings)
•
Risk management
•
Financial
•
Operational
•
Product
•
Reputational
•
Regulatory
WATER USES IN MANUFACTURING
Cooling
Cooling tower use &
losses
• Evaporation – Cooling process • Blowdown – Removing impurities • Drift – Water entrained in the airstream • Leaks http://www.deppmann.com/2012/06/25th-5/WATER USES IN MANUFACTURING
Boiler make-up
Water losses
• Boiler blowdown – Dependent on water quality » PH » TDS » Etc. • Leakage– Steam & water
Steam
Blow down
Condensate Make-up
WATER USES IN MANUFACTURING
Manufacturing processes
• Consumption is highly sector specific
• Opportunities exist:
- Process change (e.g. dry machining)
- User behavior (training + awareness)
- Reuse process water - Submeter end-uses
1kg = 15,500 Gallons
Food & Beverage
= 20 Gallons 1 pint Textile = 6,600 Gallons 1 t-shirt Automotive
DEVELOPING A STRATEGY
•
Generate awareness around
water resources –
• Globally• Watershed level
• Local/community
•
Identify corporate-wide risks
DEVELOPING A STRATEGY
•
Create a policy and plan for water management
• Set goals and targets
• Get senior management buy-in
•
Take action
EDUCATIONAL RESOURCES
•
Alliance for Water Efficiency
•
Alliance for Water Stewardship
•
World Business Council for Sustainable Development
•
2030 Water Resources Group
•
Ceres
GET ENGAGED
Programs/Initiatives
•
CDP Water Program
•
United Nations CEO Water Mandate
•
U.S. DOE Better Plants Program Water Pilot
Tools
•
Aqueduct Water Risk Atlas (WRI)
•
Aqua Gauge tool (Ceres)
•
WaterMAPP tool (Global Environmental Management Initiative)
•
Local Water Tool (Global Environmental Management Initiative)
•
Water Footprinting
TYPICAL SOLUTIONS
•
Cooling Water
• Optimizing drift, blowdown, and leaks
• Consider a/c and refrigeration condensate water for make-up water
• New technologies
•
Boilers/Steam Systems
• Minimize losses through steam traps and leaks
• Optimize blowdown through continual monitoring use of feedwater, condensate and steam
•
Processes
• Measuring water use by process or product helps identify opportunities
OWENS CORNING EXAMPLE
•
Goal setting
• 35% water intensity improvement between 2010 – 2020
• Improved 27% through 2013
•
Voluntary reporting and disclosure
• CDP water program
• Global Reporting Initiative
•
Use of Aqueduct software tool
• Learned that 32% of its facilities are in water-stressed locations
• Another 21% in future projected stressed locations
• Working with stakeholders in affected communities
•
50% reduction seen as Kansas City facility
• Targeting cooling tower blowdown and drift
SABMILLER EXAMPLE – CORPORATE LEVEL
•
Comprehensive look at water use across South Africa
• Found that 85% is for key crop production (barley, hops, maize)
•
Risks identified –
• Increasing temperatures/droughts leading to less available water
• Spread of invasive species in key watersheds & water catchments
• Urbanization water needs
•
Opportunities & Solutions
• Improved monitoring of water use throughout supply chain
• Better Barley, Better Beer initiative (best practices)
• Removing invasive species in water catchment areas
SABMILLER EXAMPLE – PLANT LEVEL
SABMiller Brewery - Newlands, South Africa
•
Actions taken
• Optimized water used for cleaning – protocols established
– Filtered and sent to condensers for cooling water
• Measuring water use (now 120 meters in facility)
• Monitoring water use for pump seal cooling
•
Results
• From 4.5 liters of water / liter of beer to 3.0 liters of water / liter of beer (facility only) in past three years
• Blue Drop certified
•
Keys to Success
• Employee engagement – awareness, recognition, $$
DISCUSSION
Questions / Comments / Discussion
For additional information:
Vestal Tutterow
(703) 748-7248