PRIVATELY FINANCED SEWER MINING FOR URBAN...
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Presented by Jonathan Lanciani and Will Kirksey To WateReuse 2013 PRIVATELY FINANCED SEWER MINING FOR URBAN REUSE
Transcript of PRIVATELY FINANCED SEWER MINING FOR URBAN...
Presented by Jonathan Lanciani and Will Kirksey
To WateReuse 2013
PRIVATELY FINANCED SEWER MINING FOR URBAN REUSE
Who We Are…
Water Technology Integrator
Turn-Key Water Reuse Projects • Planning/Design/Build
• Financing
• Operations
Extending The Lifecycle Of Water
Childhood Fascination: Nature and Water
Nature Infused with Technology To Improve Quality Of Life
Water: The Lynchpin of Life
Diverse End-Users Creates Market Opportunity
Understanding Bulk Customers
The dialog must yield an execution strategy and verification
Current conservation
plans
Water cost
Water needs/uses
by type
Water service reliability
Water discharged:
waste or unharnessed
resource?
Existing facility
capacity
Water sources
~15,000,000 3%
308,987,031 58%
~46,000,000 8%
~165,000,000
31%
Irriga&on Domes&c/Academic Steam Make-‐up Cooling Make-‐up
Water Use by Type
42% Considered Non-potable Demand
Cooling
Domestic/ Sanitary
2013 Irrigation
Heating
530 M gallons
• Wastewater: ~ Resource
~ Widely accessible
• Proven technology
Sewer Mining
Aesthetic
Safe
Economic
A more sustainable water cycle… Decentralized Reclamation and Reuse
Before
After
Incorporating Water Reuse in Urban Spaces
Decentralization Creates New Dynamics: Safety, Aesthetics & Footprint
VS.
Comparison of Technologies
Customized solutions to meet client needs
Tidal
Wetlands
Hydroponic and
Tex?le
Moving Bed Bioreactor (MBBR)
Membrane Bioreactor (MBR)
Conven?onal Ac?vated Sludge
Capital Expense
Opera&ng Expense
Energy Efficiency
Effluent Quality
Footprint
Aesthe&cs
Controlled & Safe Facilities
Controlled process for various site designs
Wide climate range
Safe, odor-free environments
Research & Education Facilities
Sustainable WaterHub™
Innovation in Design, Technology and Financing
Complex, Adaptive Ecosystems
Increased Bio-Diversity, Reduced Energy
Ecologically-Based Water Treatment Solutions
Combine:
• Ecosystem Science
• Engineering Technology
• Information Systems
Nature’s Science, Our Technology
Tidal Wetlands
Water reuse integrated into the landscape
Primary Treatment!Stage 1! Stage 2 !
Reuse System!
Filter & Disinfection!
Hydroponic Technology
Sustainable and efficient design
Plants & Suppor?ng Media
Ar?ficial Media
Aera?on
Mechanical Room
Root Zone
Moving & Fixed Media Solutions
Maximizing Treatment Capacity: Minimizing Energy and Space
Protecting Public Health
Effluent < 5/5/5; E. coli – non-detect
• Science-based Standards
• Professional Engineering
• Proficient Management
• Regulatory Oversight
CASE STUDIES: PORT OF PORTLAND & SFPUC
Case Studies: Ecologically-Based Water Treatment Solutions
“Living Machine came to our aGen&on for its ability to provide onsite wastewater treatment and allow the project to pursue a reduced water footprint – mee&ng the Port’s water and LEED goals.”
“located the Living Machine in the entry lobby crea&ng a welcoming feature to the new offices and showcasing the Port’s commitment to the community. For visitors it is a surprise to learn that they are walking past a wastewater treatment system.”
“Port’s new headquarters office building has been selected by several organiza&ons including being named one of the 10 Greenest Buildings by Forbes Magazine”
Douglas Sams, CSI, CDT, AIA, LEED AP Associate Partner ZGF Architects LLP
Port of Portland Portland, OR
Case Studies: San Francisco Public Utilities Commission
San Francisco Public U?li?es Commission San Francisco, CA
“This project explores opportuni&es of scale, and delves into what is possible at the building scale and the district scale. On-‐site black water treatment meets all of the project’s non-‐potable water needs, and provides the opportunity for a district-‐scaled solu?on for future Civic Center irriga&on use” (Source -‐ AIA COTE website)
THE EMORY CASE STUDY
Water Purchase Agreement
• Benefits • No up-front capital
• Innovative Technologies
• Leverages superior credit rating
• Immediate, Guaranteed Savings
• Long Term Pricing Stability
• No O&M Responsibilities
• SW bares majority of risk
Water is principal to facility operations… How will we manage the risks?
Flexible turnkey project financing scenarios utilizing performance contracts,
operating leases, or Design-Build Agreements
Firsts Steps:
You can’t manage what you don’t measure
• Flow Monitoring • Economic Impact • Utility Water Assessments • Site & Watershed Analysis • Re-use Feasibility
Start with a CUSTOMIZED Water Footprint Assessment
Assessing Project Viability
Validating impact & developing a plan
• Equipment inventory
• Program admin.
• WW flow projections
• Economic assessment
• Water balance & use
• Non-potable demand
• Infrastructure review
• Regulatory review
Water Footprint Assessment & Economic Validation
Utility Water Assessment
Site & Infrastructure Assessment
• Water quality needs
• Reclaimed water modeling
• Prelim. siting & design
• Lifecycle Savings
Emory’s Current Water Saving Initiatives
An array of conservation strategies deployed
Stormwater reuse
Greywater reuse
Non-potable irrigation
AC condensate recycling
Green Plumbing
Water Balance
Comprehensive assessment of water use & demand
Seasonal Distribution of Water Use Spatial Distribution of Water
Water Balance: Conservation
Wastewater Flow Measurement
• GT Sewer map
• Monitoring Graph
• Picture of guys or GT pics
Validating wastewater flows for mining
Feasibility Study Overview
Comprehensive site and infrastructure analysis
Topography & floodplain examination
Natural & built watershed analyzed on-campus
Wastewater & stormwater flow conveyance
Non-Potable Water Demand
Substantial demand replaceable by alternate supplies
38%
62%
Potable vs. Non-potable Demand
Non-potable
Potable
Non-potable Water Demand by Season
• Approx. 150M Gal. of non-potable demand (NPD) annually
• Summer NPD peaks at nearly 700,000 GPD
Utility Cooling and Boiler Water
Superior Program Oversight: Unparalleled Collaboration
AutomaticBleed
Evaporator
Condenser
Joy Aftercoolers
Bleach
Di lution WaterStatic Mixer
CL-40
Joy Air Compressorsand Intercoolers
Joy AirCompressor
2 AmmoniaCondensersOil Coolers
Intercooler toAmmonia Receiver
CL-1468BoosterPump
AutomaticController
Mar leySigmaTower
Mar leyTowers
Carrier NH3Chiller 400 Tons
Evaporator
Condenser
Carrier NH3Chiller 1,000 Tons
Joy
Joy
Aftercooler
New JoyTurbo Air
Compressor
Chemical FeedSupplyReturn
• Biological studies
• Corrosion studies
• Automation
• Treatability studies
• Equipment Integrity
CBCB
Sto rage Tank
Deaer at or
2
13
BoilerFeedwater
Pumps
V-821DA Heater &Storage Tank Boiler
FeedwaterPumps
SB-821Cleaver-BrooksBoiler (1991)32,000 pph
SB-820Cleaver-BrooksBoiler (1991)36,000 pph
ZeoliteSofteners
#2 Powerhouse
Main Steam Header
Condensate Return
V-822CondensateFlash Drum
Steam Supplyto Emulsion Breaking
CondensateReturn from
Emulsion Breaking
CBSB-821
Cleaver-BrooksBoiler (1991)32,000 pph
CondensatePumps
#1 Powerhouse
3
• Feasibility and treatability studies
• Scale inhibitors • Sludge dispersants • Treatment specifica&ons • Purity studies • Corrosion studies • Fuel conserva&on studies
Feasibility Study Overview
Cost Savings • Discounted water rates
• Reduced potable water intake
• Reduced sewer fees
Environmental • Diversion of water from eco-systems
• Decreasing wastewater discharge
• Energy Efficiency
Social Benefits • Conserves valuable water supplies
• Reduces stress on Municipal System
• Improves community water quality
Economic Impact
Reducing water use presents significant economic savings
$0.00 $2.00 $4.00 $6.00 $8.00 $10.00 $12.00 $14.00 $16.00
2008 2009 2010 2011 2012 2013 2014
Cost/1,000 gal.
Typical Water/Sewer Rates: 2008-‐2014
$0.0
$0.5
$1.0
$1.5
$2.0
$2.5
2008 2009 2010 2011 2012 2013 2014 2015 2016
Annu
al Dollars
(Millions)
Projected U?lity Water Costs 2008-‐2016
Combined rate rose 113% between 2008-2013
Utility Water Costs will approach 2M in 2014
Potential Lifecycle Savings
Annual Savings Cumulative Savings
Nearly $5.3 M in savings over 20 Years
$-‐
$100,000
$200,000
$300,000
$400,000
$500,000
$600,000
Yr 1 Yr 5 Yr 10 Yr 15 Yr 20 $-‐
$1.0
$2.0
$3.0
$4.0
$5.0
$6.0
Yr 1 Yr 5 Yr 10 Yr 15 Yr 20
Millions
Site Selection
Site selection balances economics with practicality
Undevelopable parcel
Facilities parking lot
Emory WaterHub
Topography & floodplain examination
WaterHub – Site Layout
Emory University WaterHub
Functional, but also a living, learning classroom
Summary
• Sewer Mining Creates Water Reuse Opportunities
• Ecologically-Based Water Treatment Solutions Change the Equation
• Private Sector partnerships can overcome financial and technical hurdles
NATURE’S IDEA. OUR SCIENCE. EXTENDING THE LIFE CYCLE OF WATER.
Will Kirksey (301) 908-6431 [email protected]
Jonathan Lanciani (804) 965-5590
QUESTIONS?
