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1 Post Consumption Water Use The Hidden Waste Thomas E. Pape Alliance for Water Efficiency Presented at: Great Lakes Craft Brewers & Water Conservation.

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Presentation on theme: "1 Post Consumption Water Use The Hidden Waste Thomas E. Pape Alliance for Water Efficiency Presented at: Great Lakes Craft Brewers & Water Conservation."— Presentation transcript:

1 1 Post Consumption Water Use The Hidden Waste Thomas E. Pape Alliance for Water Efficiency Presented at: Great Lakes Craft Brewers & Water Conservation Conference October 26, 2009 Copyright 2009 – Thomas Pape

2 2 Sustainability Environmental impacts of the total life cycle of products Product disposal often has the most severe long-term impact on the environment “Green” consciousness accepts responsibility for the entire lifecycle impacts Copyright 2009 – Thomas Pape

3 3 Water In the Beer Cycle BREWING Main Ingredient Sanitation Cooling DISPOSAL Urinals Toilets AGRICULTURE Irrigation “You can never buy beer, you just rent it” – Archie Bunker Copyright 2009 – Thomas Pape

4 4 Water Efficiency in Brewing Measured in pints of water used to produce pints of beer. Best water saving brewery strategies achieve water use ratios of less than 4 pints of water to produce 1 pint of beer. 4:1 Theoretical perfection of 1:1 (not feasible) Additional brewing efficiencies likely allows for less than 2 pints additional potential savings for each pint of beer produced. Copyright 2009 – Thomas Pape

5 5 The Hidden Water Waste Current disposal practices use an average of more than 19 pints of water for every 1 pint of beer – 19:1 efficiency ratio Worst case scenarios use 40 pints of water to dispose of 1 pint of beer – 40:1 More than 10 gallons of water savings are easily available in disposing of every 1 gallon of beer served.More than 10 gallons of water savings are easily available in disposing of every 1 gallon of beer served. Copyright 2009 – Thomas Pape

6 6 Water Efficiency in Beer Disposal The water saving potential is more than 20 times greater in disposal cycle compared to brewing cycleThe water saving potential is more than 20 times greater in disposal cycle compared to brewing cycle Copyright 2009 – Thomas Pape

7 7 The Technology High Efficiency Urinals (HEU) One pint per flush urinal provide 1:1 efficiency Beware: Sensor flush valves INCREASE water use! Copyright 2009 – Thomas Pape

8 8 The Technology High Efficiency Toilet (HET) 1.28 GPF = 10:1 efficiency Available in gravity flush, flush- o-meter valve, and pressure- assist technology Beware: Sensor flush valves INCREASE water use! Copyright 2009 – Thomas Pape

9 9 The Technology Dual-Flush Toilet 0.9 Gallon/flush for liquid waste –1.6 GPF for solid waste 7.2:1 Efficiency If used properly Copyright 2009 – Thomas Pape

10 10 The Technology Non-water urinals 0:1 Efficiency Vandal resistance Performance varies by make & model Copyright 2009 – Thomas Pape

11 11 Future Technology? Pee-and-go She-inal Urine diverting toilets Copyright 2009 – Thomas Pape

12 12 Green Codes Coming Soon Applicable Green Code Provisions –Require high efficiency urinals and toilets –Require 1 FU upstream of of non-water urinals –Requires sub-metering (major uses & spaces) –Cooling Tower efficiency standards –Require low-flow wash basin faucets –PRSVs, connectionless steamers in kitchens –Rain water harvesting –Allows alternative water sources: stormwater, condensate, graywater, reuse, recycle, etc. What are your code change needs?

13 13 The Economics Estimated urinal usage: –Beerjoint = 200flushes/day = 72,000/yr –Brewpub = 100flushes/day = 36,000/yr –Bar & grill = 75flushes/day = 27,000/yr –Grill & bar = 50flushes/day = 18,000/yr Estimated women toilet usage –Beerjoint = 100flushes/day = 36,000/yr –Brewpub = 75flushes/day = 27,000/yr –Bar & grill = 50flushes/day = 18,000/yr –Grill & bar = 50flushes/day = 18,000/yr Copyright 2009 – Thomas Pape

14 14 Urinal Economics Water savings of 100flush/day/fixture –Replacing a 1 GPF urinal with 1 pint urinal saves 31,500 gallons per year –$300 investment saves 630,000 gallons over fixture lifespan –$ cost per gallon saved Water demand = water supply Copyright 2009 – Thomas Pape

15 15 Toilet Economics Water savings of 75flush/day/fixture –Replacing a 3.5 GPF toilet with dual flush toilet saves 70,200 gallons per year –$300 investment saves 1,404,000 gallons over fixture lifespan –$ cost per gallon saved Water demand = water supply Copyright 2009 – Thomas Pape

16 16 Implementation Retrofit Own Brewpubs Gather Stakeholders –Brewers, Water Suppliers, Wastewater Service Providers, Retailers, etc/ Share Costs Based on Benefits Provide Incentives for Retrofits –Rebates, Vouchers, Direct Installations Exchange water savings for water rights Join the Alliance for Water Efficiency Copyright 2009 – Thomas Pape

17 17 Alliance for Water Efficiency a4we.org Thomas Pape Technical Advisor Alliance for Water Efficiency Copyright 2009 – Thomas Pape


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