Nanobubble-enhanced separation technology for fiber recovery from OCC screen rejects
This innovative technology utilizes nanobubble generation and chemical additives to enhance the separation efficiency and recovery of fibers from OCC screen rejects, addressing key challenges in paper mill operations.
Overview
This solution introduces a novel method for improving fiber recovery from OCC (Old Corrugated Containers) screen rejects using nanobubble-enhanced separation technology. By integrating nanobubble generation with optimized chemical additives, this approach aims to significantly increase the flotation separation efficiency and the recovery of usable fibers compared to traditional methods. The primary value proposition is the enhanced collision probability and attachment of nanobubbles with contaminant particles, thus improving fiber recovery rates and overall product quality in paper mill operations.
Technical specifications
The technology focuses on leveraging the unique properties of nanobubbles, such as their high surface area, strong negative surface charge, and stability in suspension, to facilitate fiber-contaminant separation. The process includes:
- Nanobubble Concentration and Size Distribution: Optimized to enhance interaction with contaminants.
- Chemical Additives: Utilization of surfactants, dispersants, and pH modifiers to improve bubble attachment.
- Controlled Flotation Tests: Conducted to evaluate separation performance metrics including fiber recovery rate and contaminant removal efficiency.
- Experimental Design: Central composite design to systematically assess the impact of variables like nanobubble concentration, air flow rate, pH, and additive dosage.
Technology readiness level
Currently, the technology is at TRL 2, indicating that the concept has been formulated and a proof of concept is under development. Future validation plans involve a 12-month experimental study to systematically test the technology's effectiveness under various conditions. The project seeks partnerships for R&D expertise, funding, and resource support to facilitate the experimental setup and validation process.
About WaterPuris
WaterPuris Inc. is a Canadian company that develops water treatment solutions centered on Exobubble, a nanobubble process intensification technology. This system utilizes the properties of nanobubbles, such as neutral buoyancy and a small negative charge, to perform tasks including particle separation, advanced oxidation, and in-situ cleaning. The technology is designed to be compact and adaptable to existing infrastructure, aiming to enhance productivity by reducing chemical and energy costs. The company provides R&D services to tailor these nanobubble solutions for various industrial applications, including agriculture, aquaculture, food and beverage processing, mining, and oil and gas operations.
The company serves industrial and specialized clients looking to meet sustainability and ESG targets by enabling effective water reuse and decreasing greenhouse gas emissions. WaterPuris has engaged with various innovation ecosystems, including the Velocity incubator, and has been recognized in competitions like the AquaHacking Finals and the FAMAE Water Challenge. Furthermore, the company continues to explore advanced applications for its technology, including a research project supported by the Canadian Space Agency focused on extracting and purifying water from lunar regolith using multi-stage distillation systems.
delivered to your inbox.