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C.E. - Commercial Water Harvesting

Illustrates trends and methodologies for on-site water reuse in commercial buildings
by

John Bauer

on 18 January 2017

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Transcript of C.E. - Commercial Water Harvesting

Evaluate Sources & Uses of Non-Potable Water
Optimize Water Storage
Develop a System Concept
Preliminary System Budget
Scoping
Process

Commercial Water Harvesting: An Overview
Prepare a
Preliminary Budget
NOAA daily rain data for project site
Model daily supply for six years
Evaluate full range of cistern sizes
Optimize
Water Storage
Filtration
& Sanitation
Pressurization
Stormwater Management
is the New Reality
System Development Process
Evaluate Sources & Uses
Recap assumptions and learning
Step through Sequence of Operation
Identify major system components
Develop a System Concept
Parking Stormwater
1.0-3.0 million gallons per year
Evaporative Cooling Tower
2-3 million gallons per year
Cooling Condensation
200-400,000 gallons per year
Toilet Flushing
300-600,000 gallons per year
Landscape Irrigation
.5-1.5 million gallons per year
Rooftop Rainwater
.5-1.0 million gallons per year
Commercial Properties Can Save Millions of Gallons Per Year
Most Water Could Be Replaced With
Non-Potable Sources
Where's
the ROI?

$10-20,000 annual water & sewer savings
10 or more LEED points
Return on Stormwater detention investment
Customers, employees & communities like sustainability efforts
Sustainable buildings have higher market value
Treatment System Designed for Consistent Water Quality
Primary
Filtration

Storage
Pre-Fabricated Concrete Structures
Polypropylene Plate Structure
Above-Grade Steel Tanks
Fiberglass Tanks
HDPE Tanks
Nutrient Separating Baffle Box (NSBB)
Cascade Filters
Vortex Filtration
RW-Series
Rainwater Skid
Duplex Pumps on Stainless Skid
Integrated Skid-Mounted Pumps
Vertical
Well Pumps
Controls
Remote Web Diagnostic Dashboard
System Performance Monitoring
Building Automation &
Intranet Connectivity
Fabrication
Sustainable Irrigation
Skid (w/o Enclosure)
GW Series Greywater Skid
NSF-350 Certified
Design and Specifications
Flow Schematics Illustrate the Concepts
Wahaso.com
800-580-5350

Cistern Optimization Modeling
Water savings potential
System efficiency
Current water & sewer rates
Future water rates
ROI Payback
Length Depends...
© 2015 Water Harvesting Solutions, Inc.
Three Tends Converge to Support On-Site Water Reuse
Megatrends
Established 2008
Only business is commercial/institutional water reuse systems
Nearly 800 projects in 38 states & Canada
Market leader in greywater and multi-source, mutli-use systems
Water Harvesting Solutions
Bringing the Concepts to Life
Case Study

Opti-RTC Technology
Active cistern storage management

Accurate storm predictions

Automated release of retained water before event
Enables use of detention capacity for retention & reuse
Triton
Community College

Stormwater Harvesting for Irrigation
Triton College Process Schematic
Stormwater Treatment Skid
Analysis Revealed 3 Million Gallon Annual Water Savings Potential
Proposed Detention & Retention
System For Reuse
470K Gallons Retention + 616K Gallons Additional Detention
Active cistern level management with Opti-RTC Technology
Irrigation System for Soccer Fields
Full transcript