Non-incineration hydrothermal waste management system for reducing landfill-bound screen rejects
A sustainable, non-incineration hydrothermal process converts carbon-containing screen rejects from OCC recycling into inert end products. The system reduces landfill waste while recycling steam and water for circularity. It uses supercritical water oxidation to achieve high COD and PFAS reduction and operates as an enclosed process that produces simple by-products such as water, salts, minerals, nitrogen gas, and carbon dioxide.
Overview
A waste management technology designed to process carbon-containing screen rejects from OCC recycling into inert gases, water, and minerals. Using a non-incineration, hydrothermal process, the system reduces landfill-bound waste while addressing pollutants such as PFAS and microplastics. It also supports resource circularity by recycling produced steam and clean water.
Technical specifications
Key features:
- Utilizes supercritical water oxidation to process over 150 substances across more than 60 waste streams
- Achieves >99.9% COD reduction for streams above 250,000 ppm and 99.999% reduction of PFAS
- Enclosed system eliminates the need for afterburners, producing simple by-products: water, salts, minerals, nitrogen gas, and carbon dioxide
- Feed management system capable of analyzing, grinding, and mixing diverse waste streams, including plastics and organics
Technology readiness level
The technology is currently at Technology Readiness Level 6, having demonstrated effectiveness in controlled environments and moving toward integration with existing industrial processes. Future validation efforts include stakeholder interviews, chemical and physical testing, and system upgrades to support seamless integration with existing industrial operations.
About AxNano
AxNano is a pioneering organization specializing in complex waste destruction technologies, notably using supercritical water oxidation to treat and destroy hazardous chemicals and waste streams.
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