Hills, Colin

Greenwich Academic Literature Archive

SAPICO2 Project UpdateAmiens, 2015 CD Hills University of Greenwich, Chatham Maritime, UKc.d.hills@gre.ac.uk  Background• Research on using CO2 as a resource dating back to ca. 1993• Initially focused on contaminated soil (1999)• Later developed using MSW APCr in the UK• Trials 2010-2012, leading to first commercial facility • Realizsation that many wastes can be carbonated• SAPICO2 conceived in early 2011 to explore boundaries and validate approachBroad objectives of SAPICO2• Developing the next generation of carbonated sustainable substrates made from solid waste and CO2 gas• These are carbon -ve and fit for purpose• Joint research and evaluation of suitable waste streams in the UK and France• Produce and performance test the carbonated products for use as building materials• Engage with UK and French stakeholders and assess marketing potential• A platform for SAPICO3 – A Cross Border Centre for Carbonation TechnologyFigure 1: Co-operating regions of INTERREG’s Manche (Channel) programmeDevelopments and Achievements• Characterised and examined 100+ French and UK wastes so far (chem, phys and CO2 uptake)• Made bulk samples for performance testing (strength, durability, thermal properties, C-footprint) Engaged with waste producers (e.g. incinerator owners in France)• Organising x2 workshops• Developing partnerships for future collaboration• New materials made from biomass7Steel Wastewater Sludge Quarry FinesBauxiteWood AshPaper AshMetal DustTreatment of diverse waste streams (and soil)9Figure 1: a) untreated fly ash.  b) granulated fly ash.   c) pelletised fly ash (MSWI)Development of carbonated construction materialsPelletised Paper AshPelletised Steel SlagCarbonated DrossPelletised FBA and PFA 30mmBulk production• Two 100kg bulk samples produced and being tested by UPJV for ‘fitness for purpose’• French biomass used for bulk aggregate production, and now being tested• Consortium of French incinerators with interest in the potential of the technology• Developments in use of biomass waste to produce novel materials Academic progress• Data obtained form characterisation phase has led to a successful MPhil programme and:– x4 Undergraduate ERASMUS traineeships (x3 France and x 1Germany)– x2 Masters ERASMUS (Italy)– x1 Doctoral Training (Italy (ERASMUS))Particle Size DistributionCO2 predictionBased on Ca and Mg content?Theoretical vs. Actual UptakeCO2 prediction issues• Based on stochiometry, current models (Steinour, Huntzinger and Polettini) over estimate CO2 uptake potential• Current data set is being used to modify/produce new model for improved prediction• New wastes can be used to test the revised model• Will be a significant academic deliverable if realised• Data set is currently the largest known(?) comprising chemical, mineralogical and CO2 uptake data.C uptake = - 0.99668 + 0.78383CaO + 2.52743MgO - 5.43891Al2O3 +16.22471P2O5 - 1.73700Fe2O3 - 3.56960K2O - 2.00282Na2O - 0.82960SiO2 + 0.25080 ClSummary• Project is entering its final phase and attracting wider attention• Bulk samples are being produced and tested• Embodied carbon being evaluated• A life cycle analysis is underway• Improved prediction of carbon uptake • Engagement of waste and materials users in France and UK • Foundations for a Centre of expertise-SAPICO3: • Cross-border Centre for Carbonation Technology (C3T)

SAPICO2 Project: Setting the scene.

http://gala.gre.ac.uk/14512/1/14512_Hills_SAPICO2_project_Setting_the_scene_%28presentation%29_2015.pdf

SAPICO2 Project: Setting the scene.

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