Efficiency of alkaline hydrolysis method in environment protection

Area of Science:

• Waste Management
• Biotechnology
• Animal By-product Processing

Background:

• Traditional heat treatment of animal waste has limitations, particularly concerning high-risk materials.
• Bovine spongiform encephalopathy (BSE) highlighted safety concerns with meat and bone meal in animal feed.
• Integral waste management requires efficient protein utilization and safe disposal of animal by-products.

Purpose of the Study:

• To evaluate alkaline hydrolysis as an alternative method for processing animal by-products not intended for human consumption.
• To assess the efficacy of alkaline hydrolysis in managing high-risk animal proteins.
• To explore the potential use of treated by-products in fertilization.

Main Methods:

• Analysis of animal by-products subjected to alkaline hydrolysis in a laboratory reactor.
• Comparison with existing EU-recognized disposal methods for high-risk materials.
• Evaluation of treated material for potential fertilization applications.

Main Results:

• Alkaline hydrolysis effectively processes animal by-products, including high-risk proteins.
• The method presents a viable alternative to traditional heat treatment.
• Treated by-products show potential for use in fertilization.

Conclusions:

• Alkaline hydrolysis is a recognized and effective method in the EU for disposing of animal by-products not intended for human diet.
• This technology provides a safe and efficient solution for managing high-risk animal proteins.
• Further research into the fertilization potential of alkaline hydrolysis-treated by-products is warranted.