Ecowater CHC Chemical Free Cooling Tower Water Treatment System

CONTROLLED
HYDRODYNAMIC
CAVITATION
Chemical-Free Cooling Tower Water Treatment System
A Marmon Water/Berkshire Hathaway Company

CHC Technology History
 Developed by Cliff Ashbrook and licensed to Lancer
Corporation in the early 1990’s.
 Ballistics observations
 AW Chesterton licensed the technology from Lancer in 1998.
 VRTX established as a company in 2003.
 Liberation Capital invests in VRTX in 2011.
 EcoWater Systems acquires technology IP in 2014 and
renames the business EcoWater CHC.

Standard Features
Controlled Hydrodynamic Cavitation Reactor
Remote Monitoring
Pump Inlet Basket Strainer
Two-Stage Automatic Filter System
Conductivity Control
Toroidal Conductivity Probe
Integrated Corrosion Rack
Combined Motor Starter with Power Disconnect
Basin Suction Manifold
Basin Sweeper System
CHC B-Series
Mechanical Water Treatment Systems for Evaporative Cooling
Optional Features
Copper (Cu) Ionizer
Power Economizer
SCADA Interface (Bacnet IP)
Make-Up Flow Meters
Blowdown Flow Meters
pH Monitoring

Standard Systems
• A 50
• A 100
• B 200
• B 300
• B 400
• C 400
• C 600
• D 600
• D 900
EcoWater CHC Products
Letter = CHC chamber
• A = 20 gpm
• B = 80 gpm
• C = 125 gpm
• D = 250 gpm
Number = Filtration (GPM)

CHC Solution
 Cooling water drawn from sump
and treated by CHC Cavitation
Chamber.
 Side stream
 Sweeper nozzles direct precipitated
scale and other debris to filtration
intake.
 Manifold design critical
 Maintenance-free filters maintain a
“pool clean” highly energy efficient
system.
 PLC Controller – all data available
for system interface
 Wireless remote monitoring

What is a Cooling Tower?

Water & Sewer Savings
 Average customer reduces make-
up water 20%
 Average customer eliminates
50% of blow-down
 Because CHC is chemical-free,
blow-down may be repurposed
for other applications, (i.e.
irrigation) saving significantly
more water!

 Cavitation
Metal Destruction from
Uncontrolled Cavitation CAVITATION BUBBLE COLLAPSE
cav.i.ta.tion kav' i ta' shun n [1. the rapid
formation and collapse of vapor pockets in a flowing
liquid in regions of very low pressure.
Shear stress = 150,000 psi
Temperature rise = 10,000 F

Inside the CHC
Cavitation Chamber
 The opposing water streams
collide in the cavitation zone,
causing millions of high energy,
micro-sized cavitation bubbles to
rapidly form and collapse. This
stresses any bacteria and forces
calcium carbonate to form in the
bulk water.
 Water from the sump is pumped under high pressure
into the cavitation chamber, where it is forced to
rotate at high velocity through precision nozzles.
 The treated water exiting the
cavitation chamber is returned
to sump where the
precipitated calcium carbonate
is removed by the integral
filtration system.





Controlled Hydrodynamic Cavitation
Scale Control
Changes water chemistry to
precipitate calcium carbonate
scale
Cell Lysing
Cavitation kill biologics by
breaking down cell walls
Corrosion Control
Vacuum strips CO2 which
elevates pH creating a low
corrosion environment

Cavitation Zone
Chemistry
Implications
Notes:
1. Chemical treatment tried to
keep hardness in solution.
CHC removes hardness from
the water.
2. Chemicals maintain delicate
balance between scale control
and corrosion
3. High temperature accelerates
CaCO3 precipitation
Scale Control Using CHC
1 CO2 Stripping: High-vacuum exceeds
partial-pressure of CO2; CO2 is vented
2 Hardness Removed (!): As CO2 vents,
reaction shifts right, soft, powdery CaCO3
precipitates and is filtered :
Ca(HCO3)2 CaCO3 + H2O + CO2
Dissolved Precipitate Gas (vented)
1. Automatic Scale Control…removes requirement
to maintain delicate chemical equilibrium
2. Cycles of Concentration Increase –
resulting in less water usage
3. Towers run cleaner – resulting in better heat
transfer and lower energy usage
Notes:
1. With CHC, you cannot
over treat.

Watch CHC Remove Calcium Scale
Time lapse video - water becomes cloudy as scale precipitates

Why is Excellent Water Treatment So Important?
Energy
COLD HEAT
$$$

Scale Factor Reference
HVAC Energy Conservation through Cooling Water Treatment
Course No: M05-013
COST OF SCALE

Energy
COLD
HEAT
$$$$$
Same Load Scale Impact

Effect of Scale on Energy Consumption

Restores Energy Efficiency
Scale removal by CHC at a
Texas based Food Processor
Condition at startup After six months of treatment

World-class Bacteria Control
 CHC approved for
Legionella control under
world’s most strict
standard, L-8 in the UK.
 Biologics adapt to
traditional chemical
treatment. However, they
cannot adapt to CHC.
Biological Control Using CHC
**Biological Cells Do Not Build Tolerance to CHC**

CHC Solution
Cavitation
Chamber
Dual Pumps
for improved
energy
efficiency
PLC with
Remote
Monitor &
Control
Torroidal
Conductivity
Control
Motorized
Actuated
Valves for
remote control
Self-contained
stainless skid

Filtration
Centrifugal
separator
Self-cleaning
screen
polishing filter
Basin sweepingDual drains for
blow-down
reuse

Costco Atlanta Installation
B 400 : 1200 tons

CHC Opportunities
 Market Segments
 Cold Storage For Hire
 Food & Beverage
 Grocery Retail Distribution
 Hotels & Convention Centers
 Hospitals
 Schools & Universities
 Office Towers & Large Condominiums
 Airports and Public Buildings
 Data Centers
 Manufacturing

Map of Facilities with Anhydrous Ammonia

CHC Approach
 Best practice for treating cooling tower water!
 WE SELL CLEAN WATER
 Cost effective
 Eliminate cost of chemicals
 Reduce cost of purchased water
 Reduce cost of sewer charges
 Saves energy by cleaning system
 Extends equipment service life

CHC Approach
 Protect the environment
 Save water
 Reduce or eliminate demand on waste water treatment
facilities
 Eliminate contamination of our water supply by chemicals
 Reduce carbon footprint by saving energy

Costco Meat, Tracy, CA
CHC Survey Example - Small System

Costco Meat, Tracy, CA
CHC Survey Example - Large System

CHC Commercial Process
 Understand decision process
 Who signs the order?
 Corporate influence?
 Preference for capital purchase or rental?
 Studies, Referrals, and Testimonials
 New study with Marriott
 Spotezl Brewery Water Saving

Relationships Based Selling
 Review proposal IN PERSON to close the deal
 Order process
 Lead time
 Freight obligation
 EX WORKS
 Installation process
 System configuration
 Engineering drawings
 Critical timing
 System performance tracking and maintenance
 Periodic service required

EcoWater CHC Growth Strategy
 Key factors for growth:
 Strategic corporate relationships
 Strategic regional sales concentration
 Local installation and service
 Leverage key EWS Dealers
 Specific experience with Commercial/Industrial applications
 Strong sales performance for EWS
 Experienced service and installation team
 Match EWS Dealers to service current FSA contracts

Improves
Efficiency
Lowers
Costs
Minimizes Factors that Reduce Efficiency
1. Controls scale
2. Prevent biological fouling
3. Inhibits corrosion
Reduces Total Cost of Ownership
1. Eliminates chemical costs
2. Cuts water & sewer usage
3. Improves energy efficiency
4. Minimizes maintenance
Economically Achieves ‘Green’ Initiatives
1. Eliminates hazardous chemicals
2. Improves water conservation and reuse
3. Provides energy savings
4. World-class bacteria control
Proven
Technology
Over 15-years of successful, chemical-free
cooling water treatment world-wide
Meets
Environmental
Sustainability Goals

Thank You
www.ecowaterchc.com

Ecowater CHC Chemical Free Cooling Tower Water Treatment System

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