Accelerated Carbonation Technology (ACT) is an effective waste treatment process that stabilises contaminants, enhances the handling of the wastes, and can reduce disposal costs.

A multitude of wastes can be readily treated and rendered less hazardous using ACT.

stones

The reaction promotes rapid solidification and improved mechanical properties and modification of contaminant mobility.

ACT results in a reduction in porosity due to the formation of voluminous calcium carbonate in the pore space. This aids the retention of contaminants through improved physical containment. Crystals of calcium carbonate join together into an interlocking lattice, forming an unimpaired bond between grains.

The carbonation reaction results in chemical stabilisation which improves contaminant retention. Under optimum conditions the rate of heavy metal release can be reduced by up to several orders of magnitude. This is due to precipitation of metals as low solubility carbonates, the formation of solid solutions in the precipitated calcium carbonate, and sorption onto crystal surfaces.

solidification solidification
conversion conversion
solid solution solid solution
sorption sorption

ACT can be used to alter the physical properties of the waste to improve handling. Granulation of fine-grained powders, and moisture adjustment can be achieved. Treatment of waste using ACT can facilitate easier end of life management and reduce disposal costs.

Waste treatment using ACT can be used as a step towards valorisation as Sustainable Construction Products.

O.C.O News
O.C.O exhibit at the Concrete Expo

On the 8th and 9th of October members of the O.C.O team manned a stand at the Concrete Expo NEC Birmingham which formed part of UK Construction week. The show was very successful for our business with a footfall far higher than expected. Customers old and new visited us on the stand and it was […]

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Achilles Audit Ranks O.C.O Technology in the Top 10% of Businesses

As O.C.O Technology continues to grow its customer and supplier base, we were pleased to welcome an audit from Achilles following a recent tender win. With the Health, Safety and Welfare of our employees and the quality of our products and processes always being high priority, Achilles were welcomed to our Leeds site in October. […]

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O.C.O Technology contract award for Ferrybridge Multifuel 2

O.C.O Technology has been awarded a 10 year contract with Ferrybridge Multifuel 2 (FM2) for the management of Air Pollution Control residues arising from the new power station.  O.C.O will process the residues using their Accelerated Carbonation Technology, whereby carbon dioxide is reacted with the residues to create a carbon negative aggregate product.  This manufactured […]

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O.C.O Technology recognised for ‘good practice’

O.C.O Technology have been included on European Circular Economy Stakeholder Platform (ECESP) as an example of good practice. The ECESP was created as a joint initiative by the European Commission and the European Economic and Social Committee (EESC). The platform allows the exchange of ideas and information, and helps accelerate the development of the circular […]

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O.C.O Technology

Built on more than 20 years of award-winning research, Accelerated Carbonation Technology has helped make us a world leader in the permanent capture of carbon dioxide.

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