Use of DGI® Enhanced Shrimp Production with
Likely Health Improvements Results to be Presented at Aquaculture
America 2024
Fuel Tech, Inc. (NASDAQ: FTEK), a technology company
providing advanced engineering for the optimization of combustion
systems, emissions control, and water treatment in utility and
industrial applications, today released a white paper detailing a
successful collaborative trial in which the Company’s
DGI® Dissolved Gas Infusion technology was utilized at
a domestic shrimp farming facility. The paper, titled Demonstration
of the Fuel Tech, Inc. Dissolved Gas Infusion (DGI®)
Technology for the Royal Caridea Aquaculture Raceway, suggests that
the use of DGI® to reliably dose and maintain
dissolved oxygen levels can dramatically increase total production
compared with traditional aeration methods.
The Company believes that this report evidences the multiple
potential benefits of its DGI® technology for
aquaculture applications, while validating the inherent flexibility
of DGI® for a wide range of water and wastewater
processes, environmental remediation, and industrial uses.
Shrimp farm technology provider Royal Caridea worked closely
with Fuel Tech on a trial to determine the effects of growing
Pacific whiteleg shrimp (Litopenaeus Vannamei) in a raceway system
using the Company’s patented DGI® gas infusion
system.
Shrimp farming is helping to meet growing consumer demand, and
higher densities of the crustaceans are possible in the raceway
than what occurs in the wild. The comparative trial took place in
back-to-back growth cycles on a raceway with high species stocking
and low-salinity water at Royal Caridea’s aquaculture farm in
Arizona.
In land-based raceways, a continuous stream of water must
provide the required level of water quality for the crustaceans to
develop, and aeration is necessary to meet the required
parameters.
In the first growth cycle, traditional bubble aeration using the
venturi principle was used until the oxygen demand of the water
could no longer be met. This required that the shrimp be partially
harvested to ensure acceptable dissolved oxygen (DO) concentrations
were maintained for those remaining.
In the second growth cycle, Fuel Tech’s DGI® technology was used
to provide DO concentrations at 150% of atmospheric saturation.
This successfully unlocked the potential for more shrimp to reach
maturity within the raceway, along with likely health improvements
for the shrimp.
The two, three-month trials are the subject of a new white paper
from Fuel Tech, which shows how its DGI® process,
originally developed for the water and wastewater treatment market,
offers multiple benefits in shrimp production. Fuel Tech is pleased
to report that excellent survival and growth was achieved during
the DGI® trial.
A mean weight of 42g was reached per shrimp in about 100 days.
The growth curves for individual shrimp showed no significant
change from the trial when selective early harvesting was necessary
to manage the high biomass loading.
The DGI® trial also revealed no evidence of
trimethyl amine odor, oxidation, excessively fast metabolism,
osmotic shock, or gas bubble disease. This suggests that
maintaining DO levels above saturation in low-salinity water,
without the presence of bubbles, increases the yield, while
minimizing any detrimental effects of high oxygen levels.
In conclusion, the research shows that high post-larval shrimp
stocking, combined with reliable DO dosing with DGI®,
can dramatically increase total production compared with
traditional aeration methods.
The results will be presented by John M. Boyle, PhD, Senior
Director of Technology Development at Fuel Tech, at Aquaculture
America on February 21, 2024 in San Antonio, Texas. Co-author
Maurice Kemp, President of Royal Caridea, is planning to
attend.
Bill Decker, Vice President of Water and Wastewater Treatment
Technologies at Fuel Tech who will also attend Aquaculture America,
commented, “We believe that the trials in collaboration with Royal
Caridea show huge benefits in deploying DGI® for
oxygen injection in aquaculture applications. Demand for shrimp is
increasing globally and shrimp farming is an important source to
help meet the growing demand and reduce overfishing of the marine
environment. By deploying DGI®, producers now have an
opportunity to improve stock health and yields, while achieving
more efficient operations.”
DGI® uses a patented next generation, pressurized
saturator for gas transfer of the oxygen solution to a slipstream
of water; and an innovative nozzle delivery system to distribute
oxygenated water that virtually eliminates gas loss from a targeted
body of water.
The DGI® technology was tested using validation
methodologies published by the American Society of Civil Engineers
(ASCE) and its Environmental & Waters Research Institute
(EWRI), and the results of the tests have been peer-reviewed and
endorsed by industry experts. The validation testing white paper
showed that DGI delivers greater than 99% transfer of oxygen when
applied to a treated body of water.
The full white paper is available at
www.dissolvedgasinfusion.com.
About Fuel Tech
Fuel Tech develops and commercializes state-of-the-art
proprietary technologies for air pollution control, process
optimization, water treatment, and advanced engineering services.
These technologies enable customers to operate in a cost-effective
and environmentally sustainable manner. Fuel Tech is a leader in
nitrogen oxide (NOx) reduction and particulate control technologies
and its solutions have been in installed on over 1,300 utility,
industrial and municipal units worldwide. The Company’s FUEL CHEM®
technology improves the efficiency, reliability, fuel flexibility,
boiler heat rate, and environmental status of combustion units by
controlling slagging, fouling, corrosion and opacity. Water
treatment technologies include DGI® Dissolved Gas Infusion Systems
which utilize a patented channel injector to deliver supersaturated
oxygen solutions and other gas-water combinations to target process
applications or environmental issues. This infusion process has a
variety of applications in the water and wastewater industries,
including remediation, aeration, biological treatment and
wastewater odor management. Many of Fuel Tech’s products and
services rely heavily on the Company’s exceptional Computational
Fluid Dynamics modeling capabilities, which are enhanced by
internally developed, high-end visualization software. For more
information, visit Fuel Tech’s web site at www.ftek.com.
NOTE REGARDING FORWARD-LOOKING
STATEMENTS
This press release contains “forward-looking statements” as
defined in Section 21E of the Securities Exchange Act of 1934, as
amended, which are made pursuant to the safe harbor provisions of
the Private Securities Litigation Reform Act of 1995 and reflect
Fuel Tech’s current expectations regarding future growth, results
of operations, cash flows, performance and business prospects, and
opportunities, as well as assumptions made by, and information
currently available to, our management. Fuel Tech has tried to
identify forward-looking statements by using words such as
“anticipate,” “believe,” “plan,” “expect,” “estimate,” “intend,”
“will,” and similar expressions, but these words are not the
exclusive means of identifying forward-looking statements. These
statements are based on information currently available to Fuel
Tech and are subject to various risks, uncertainties, and other
factors, including, but not limited to, those discussed in Fuel
Tech’s Annual Report on Form 10-K in Item 1A under the caption
“Risk Factors,” and subsequent filings under the Securities
Exchange Act of 1934, as amended, which could cause Fuel Tech’s
actual growth, results of operations, financial condition, cash
flows, performance and business prospects and opportunities to
differ materially from those expressed in, or implied by, these
statements. Fuel Tech undertakes no obligation to update such
factors or to publicly announce the results of any of the
forward-looking statements contained herein to reflect future
events, developments, or changed circumstances or for any other
reason. Investors are cautioned that all forward-looking statements
involve risks and uncertainties, including those detailed in Fuel
Tech’s filings with the Securities and Exchange Commission.
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version on businesswire.com: https://www.businesswire.com/news/home/20240205412841/en/
Vince Arnone President and Chief Executive Officer (630)
845-4500
Devin Sullivan Managing Director The Equity Group Inc.
dsullivan@equityny.com
Fuel Tech (NASDAQ:FTEK)
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