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Email Content: Poultry Industry News, Comments and more by Simon M. Shane

Micro-Tracers Completes Phase II of Wastewater Treatment Study


During February 2023, Micro-Tracers, Inc. in collaboration with University of Arkansas, was awarded a USDA National Institute of Food and Agriculture (NIFA), Small Business Innovation Research (SBIR) grant as part of the Meat and Poultry Processing Research and Innovation (MPPRI) program. This program aims to improve the supply chain resilience of small and mid-size meat and poultry processors through emerging technologies, sustainability and food safety.


The collaborative project focuses on a chlorine-free method that safely and cost- effectively inactivates pathogens in poultry wastewater. Generating these disinfectants on-site, in wastewater reduces hazards associated with handling of chemicals and contributes to worker safety. This application also reconditions wastewater without toxic residues, making it environmentally friendly and ideal for water reuse applications while providing real-time process monitoring to ensure the safety of poultry products. 


In 2023, pilot-scale equipment was designed and built and utility was validated. Both E.coli and Salmonella were inactivated in treated wastewater through the in-situ generation of oxidants. These included hydrogen peroxide, hydroxyl radicals and singlet oxygen. Quantitative analyses of bacterial survival showed decreases in colony forming units by two to four orders of magnitude.


The principle of the application is the generation of reactive oxygen species (ROS) that induce oxidative stress leading to bacterial death.When molecular oxygen undergoes electrochemical reduction, the resulting molecules and metallic ions further reduce pro-oxidants to form highly-reactive hydroxyl radicals through the Fenton reaction. Simultaneous photodynamic reactions generate another ROS, singlet oxygen contributing to bacteriolysis.


Continuation of Phase III research in 2024 will focus on commercialization and integration of pilot equipment into existing poultry processing, sanitation and cleaning systems. Remote trials are in progress at the Agricultural Research and Extension Pilot Processing Plant of the University of Arkansas, Poultry Science Department in addition to the Natural State Processing Facility in Clinton, AR. 


Micro-Tracers, Inc. established in 1961 has acquired extensive experience collaborating with senior technical staff at poultry integrations in the U.S. and abroad. By adopting improved water reuse applications, small to mid-sized poultry producers can improve sustainability, supply chain resiliency and generate enhanced profitability.

Copyright © 2024 Simon M. Shane