Fuel Tech Publishes White Paper on Positive Effects of Its Dissolved Gas Infusion Technology in an Aquaculture Setting - Seite 2

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 (NO_x) 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.