Carbon Capture Using Solid Wastes

Overview

PolyU start-up CCS-Tech has developed an advanced wet carbonation technology that can convert waste concrete into high-value products such as carbonated aggregates, nano-silica, micro-size aragonite, and calcite, while simultaneously sequestering a significant amount of greenhouse gas CO2.

  • Carbon Capture Using Solid Wastes
Technical name of innovation
Synergistic production of high-value and low-carbon products with double waste
Commercialisation opportunities
IP licensing
Problem addressed

To achieve the vision of Waste Reduction · Resources Circulation · Zero Landfill as outlined in the Waste Blueprint for Hong Kong 2035, it is necessary to explore the feasibility of converting waste concrete, which would otherwise be sent to landfills, into various value-added products.

Innovation
  • Novel wet carbonation
  • High carbon capture efficiency
  • High-value products
Key impact
  • Utilises solid and gaseous wastes simultaneously
  • Overcomes the problem of compositional variation in waste
  • Highly efficient and permanent CO2 sequestration
  • Diversified nano-macro products
Award
  • 6th China International Invention Exhibition Awards, 2008
Application
  • Different kinds of building materials

Patent

  • 202110231082
The Hong Kong Polytechnic University (PolyU)

With over 80 years of proud tradition and ranking among the world’s top 100 institutions, The Hong Kong Polytechnic University (PolyU) aspires to be a leading university with world-class research and education.

PolyU is a home for educating thinkers, discoverers, innovators and communicators in delivering positive impact. We are committed to nurturing tomorrow’s leaders today, through a holistic education that provides graduates unrivaled placements to thrive in communities, industries and businesses.

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