Transcript Zeta Corporation - Cheqpoint Tech Trading LLC

Zeta Corporation
Tucson, Arizona, USA
“Zeta Rod®systems: Green & Sustainable Technology
Solutions for Evaporative Cooling Water Treatment”
Zeta Corporation
Company Background
Initial research starts in the early 1990’s for fouling prevention in solvent
extraction processes for the copper mining industry in Arizona.
Zeta Corporation earns first U.S. Patent for the Zeta Rod and incorporates its
business in 1996. Process patents follow in enhanced flocculation and RO
membrane biofouling prevention.
Technology is described and well grounded in advanced principles and theory of
chemistry and physics. Zeta Corporation principals bring strong career experience
in industrial water treatment methods and water chemistry.
Stable growth, primarily through customer referrals, for commercial & industrial
applications in treatment of: cooling towers, RO systems, metalworking fluids,
potable water distribution & other industrial processes.
Business conducted world wide, supported by qualified engineering
representation and distribution.
Professional staff experienced in fields of chemical and mining engineering,
economics, electronics, architectural design, construction, and chemical sales.
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Applications Research
Zeta Corporation is committed to the scientific understanding of its
technology and its applications. Research has been conducted both within
the company and by third parties, with findings published in peer
reviewed journals and/or engineering conference proceedings . Areas of
research include:
Deposit Control: Scaling & Biofouling
Membrane Fouling Prevention
Particle Dispersion and Flocculation
Corrosion Control
Prevention of Coolant Bio-degradation.
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Markets
Mining
Industrial Processes & Manufacturing
Commercial Facilities: Comfort Cooling and Domestic Water (airports,
convention centers, hospitals, shopping centers, hotels, condominiums)
Food & Beverage
Packaging
Sea Water Desalination and RO
Metalworking & Glass Manufacturing
Semiconductors & Microelectronics
Residential and Small Commercial Domestic Water Conditioning
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Selected Clients Worldwide
REXAM Beverage Cans (32 Plants, North & South America, Europe)
Wafer Fabrication Plant, Camas Washington
Los Angeles Convention Center
Houston International Airport (Central Plant & Domestic Water)
United States Military
General Motors
Crown BevCan Turkiye
Nan Ya Plastics
Pepsi Cola
Nervacerro
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Cooling Systems
Corn Processing Plant, CA
Semiconductor Wafer Fabrication Plant
Camas, Washington, USA
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Comfort Cooling:
Los Angeles Convention Center
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Industrial Cooling
Steel Mill, Spain
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Central Plant Cooling & Potable Water
Distribution Lines
Houston Intercontinental Airport
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Water Treatment Programs:
Main Objectives
Scale Control
Corrosion Control
Biofouling Control
Water Conservation
Environmentally Friendly
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Water Treatment for Chiller-Cooling Towers
Primary application of a Zeta Rod system is to the condenser water loop.
Traditional Chemical Programs Utilize:
Anti-scaling chemicals: prevent scaling of condenser & tower fill
Biocide: control bacteria growth & biofouling
Corrosion inhibitor: prevent metal corrosion
Acid: pH control (less and less common)
Regular visits by chemical sales/service representative to monitor & make
adjustments to system, inventory chemicals, perform water analyses, re-order
chemicals
Problems with Chemical Treatments and Programs:
High recurring cost (chemicals continue to increase in price)
High maintenance in monitoring and analyses
Not a green solution.
Storage, handling and disposal of chemical products potentially hazardous
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What is a Zeta Rod System?
The Zeta Rod forms a Capacitor within the water system and increases surface
charge density on suspended colloidal particles causing them to repel one another
+
Grounded pipe, vessel, or surface
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Zeta Rod® Electrode
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What does a Zeta Rod do?
Prevents the formation of mineral deposits
Prevents the formation of biofilms
Eliminates existing biofilms
Prevents microbially induced corrosion (mic)
Maintains clean heat transfer surfaces
Reduces or eliminates chemicals
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What a Zeta Rod is not
Zeta Rod is not a biocide
Zeta Rod is not a filter
Zeta Rod is not a corrosion inhibitor
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How does Zeta Rod control scale?
By increasing the zeta potential of colloidal particles and
wetted surfaces, a strong dispersion is created which prevents
particles from forming scale deposits.
By eliminating biofilm, the Zeta Rod removes the primary
“glue” that holds scale in place, causing old scale build-up in
many situations to fall off.
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Biofilm Development in Water Systems
Adhered organic
molecules
Clean surface
Feeding microbes
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“Pioneer” microbes
Formation of glycocalyx
or EPS
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Fully Developed Biofilm
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Problems With Biocides
Biocides are designed to “kill” bacteria, not to
remove, or prevent formation of biofilm
Bacteria growth takes place within biofilm
Bacteria can go into “dormant” status when in a
biofilm
Bacteria in biofilm can be as much as 2 to 500 times
more resistant to biocides
Insufficient dosages of biocides can result in
bacteria with higher tolerance
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How does the Zeta Rod control biofilm?
Reducing surface tension of water allows existing biofilms to superhydrate and easily be removed by turbulence of fluid.
The Zeta Rod causes hydration, swelling, and loosening of biological
deposits leading to the removal of fouling from wetted surfaces.
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Biofouling Vs Algae Growth
It is Important to differentiate between biofouling & algae growth.
Biofouling is caused by bacteria in the water. Biofouling can cause
catastrophic failure in equipment due to microbially induced corrosion
(MIC). Biofouling has a severe impact on heat transfer coefficients.
Biofouling can take place in aerobic and anaerobic conditions.
Algae is a photosynthetic plant that requires oxygenation, nutrients,
sunlight and a substrate on which to grow. Algae typically occurs in
distribution decks and sunlit areas of the cooling tower basin and
structure. Does not typically represent a problem as far as performance is
concerned with the equipment (algae does not grow inside heat
exchangers).
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Biofouling Vs Algae Control
The Zeta Rod is very efficient in controlling biofouling. It
does this by eliminating existing biofilms and preventing the
formation of new biofilms. Extremely low bacteria counts are
typically maintained in cooling towers, without the use of any
added biocides.
The best way to control algae growth is by depriving it of
sunlight or nutrients. The Zeta Rod helps prevent the
formation of the substrate on which algae grows, reducing the
potential for algae growth.
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Corrosion Control
The Zeta Rod allows evaporative cooling systems to operate in
conditions not favorable to corrosion ( pH around 9.0)
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NACE Corrosion Standards for Open,
Re-circulating Evaporative Water Systems
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Corrosion Control in Cooling System, 12 month evaluation by the
U.S. Army Corps of Engineers Research Lab
Corrosion Coupon Results 1st Qtr. Jul-Oct 07
Site
Metal
days
Oct 07-Jan 08
Jan-Apr-08
Apr-Jul 08
Corr. (mpy)
Days
Corr. (mpy)
Days
Corr. (mpy)
Days
Corr. (mpy)
Ft. Huachuca
South Central Plant
(ZR)
Copper
92
0.1525
97
0.228
91
0.1113
93
0.1627
Ft. Huachuca
North Central Plant
(Chem)
Copper
90
0.0746
97
0.0876
91
0.1157
93
0.1705
Ft. Huachuca
South Central Plant
(ZR)
Carbon Steel
91
0.0901
97
0.1521
91
0.2024
93
0.1365
Ft. Huachuca
North Central Plant
(Chem)
Carbon Steel
90
0.232
97
0.1745
91
0.226
93
0.164
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Zeta Rod Installation for Chillers-Cooling Towers
Typical Configuration
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Zeta Rod Systems for
Chillers/Cooling Towers
Main focus is condenser water loop
Modular systems allow for customized targeted treatment
CWS main header & CWR main header
Replaces all chemicals
Reduces Water Consumption – blow down available for gray water uses
Eliminates need to store, handle & dispose chemicals
Reduced maintenance for monitoring and analyses
Remote monitoring capability for continuous real time protection and
safety of the chiller/cooling tower system
Green Long Term Sustainable Solution
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Zeta Rod Installations for Cooling Towers
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How To Verify Treatment is Effective with a
Zeta Rod System
Not by doing daily chemical analyses checks….
Corrosion: 90-day coupons, Electric Resistance
Probes for real time corrosion trend analysis.
Biofouling: Periodic bacteria tests
Scaling: Continuous performance monitoring of
chillers (approach temp, COP’s) and annual physical
inspections (borescope, eddy current testing).
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Zeta Water Management System
Continuous access to system
status via wireless (where
available) or static IP
Datalogging for pH, conductivity,
water use, corrosion & power
supply 35KVDC output.
Capability of sending alarms to
multiple recipients.
Remote control capabilities
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Zeta Water Management System
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Data Collected by ZWMS
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Benefits for Green Buildings: LEED strategies
The use of the Zeta Rod can help LEED teams with their strategy for obtaining LEED
certification points in the following areas:
WE 1.1. Water Efficient Landscaping - By allowing the end user to use cooling
tower blowdown for irrigation purposes the end user can move towards achieving
the 50% reduction of potable water use for landscaping purposes.
WE 2 Innovative Waste Water Technologies: The cooling tower blowdown can
be used also as gray water to flush toilets and urinals thus reducing the use of
potable water for building sewage.
WE 3.1. Water Use Reduction: once again, by having chemical free blowdown
water, the water can be utilized in the gray water system of the facility. Also, if
the cooling tower could be operated at higher cycles of concentration (water may
not qualify for irrigation) the amount of water used and disposed could be
reduced.
ID 1.1-1.4 Innovation & Design for use of innovative technologies
Zeta Corporation is a member of the U.S. Green Building Council
Rodrigo Romo, Carolyn Pitts and Paul Abraham are LEED Accredited Professionals
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Equipment Warranty and Listings
Standard 3 year warranty on parts and
workmanship (extendible). Made in the USA
Expected lifespan of a well cared for Zeta Rod
system is 20yrs (+)
ETL listed to UL Std 61010-1 and CAN/CSA Std
C22.2 No. 61010-1
CE Declaration
IAPMO UPC (Uniform Plumbing Code) GREEN
Listed to include ANSI/NSF Part 61
Power consumption ~0.38 kWh/day
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Published Study:
U.S. Army Corps of Engineers
Construction Engineering Research Lab
Fort Huachuca Army Base, Arizona
Davis Monthan Air Force Base, Arizona
Fort Irwin Army Base, California
Evaluation conducted under the supervision of
USACE CERL
Sites selected for the hardness in the water and the harsh
environmental conditions.
The climatic conditions at these locations are similar to those
found in the UAE.
Results over three years have shown that Zeta Rod was
capable of providing same level of protection as chemical
treatment program while delivering an average 20% water
conservation and complete chemical reductions
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Water Quality
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90-Day Corrosion Coupons
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District Cooling Project
UAE

40,000 RT System:
–
–
–
–
–
–
–
Eight 5,000 RT cooling tower cells
Sixteen 2,500 RT Chillers
Two 6” Make Up water lines
One 8” Blow down water line
Two 24” CWR Headers
80 ppm Chlorides in Make Up water
320 ppm Chloride Discharge Limit (4 cycles of conc).
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Proposed Zeta Rod System
Zeta Rod system consisting of two model ZR36S Zeta Rods
with model ZRPGM Power Supply per chiller
Two sets of eight ZR24S Zeta Rods in 24” CWR lines.
Zeta Water Management Systems per with pH, Conductivity,
and dual corrosion probe monitoring capabilities.
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Benefits
GREEN long lasting sustainable solution
Eliminate use of, storage, handling and disposal of chemicals
Contributes to LEED strategies
Blow down water can be reclaimed for irrigation purposes
Low cost of operation
Low maintenance of the system
Maintain target corrosion, scaling and biofouling rates with
continuous monitoring for continuous protection of expensive
cooling systems
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Thank you
Rodrigo F.V. Romo
Vice President
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