Article

Hills, Colin, Tripathi, Nimisha and Carey, Paula (2021) Managed pathways for CO2 mineralisation: analogy with nature and potential contribution to CCUS-led reduction targets. Faraday Discussions, 230. pp. 152-171. ISSN 1359-6640 (Print), 1364-5498 (Online) (doi:10.1039/D0FD00142B)

Hills, Colin D., Tripathi, Nimisha, Singh, Raj S., Carey, Paula J. and Lowry, Florence (2020) Valorisation of agricultural biomass‑ash with CO2. Scientific Reports, 10:13801. ISSN 2045-2322 (Online) (doi:10.1038/s41598-020-70504-1)

Tripathi, Nimisha, Hills, Colin D., Singh, Raj S. and Singh, Jamuna S. (2020) Offsetting anthropogenic carbon emissions from biomass waste and mineralised carbon dioxide. Scientific Reports, 10:958. ISSN 2045-2322 (Online) (doi:10.1038/s41598-020-57801-5)

Tripathi, Nimisha, Hills, Colin, Singh, Raj S and Atkinson, Christopher J. (2019) Biomass waste utilisation in low-carbon products: harnessing a major potential resource. npj Climate and Atmospheric Science, 2:35. ISSN 2397-3722 (Online) (doi:10.1038/s41612-019-0093-5)

Ajibade, Oluwatoyin Opeyemi, Tota-Maharaj, Kiran, Hills, Colin and Macleod, Cecilia (2019) Modelling of a sustainable refugee camp drainage system for storm water management. Environmental Science Water Research & Technology, 5 (12). pp. 2150-2161. ISSN 2053-1400 (Online) (doi:10.1039/c9ew00350a)

Choi, Hun, Lake, Craig B. and Hills, Colin. (2019) Particle size effects on breakage of ACT aggregates under physical and environmental loadings. Journal of Hazardous, Toxic, and Radioactive Waste, 24 (1):04019029. ISSN 2153-5493 (Print), 2153-5515 (Online) (doi:10.1061/(ASCE)HZ.2153-5515.0000468)

Monrose, John, Tota-Maharaj, K., Mwasha, A. and Hills, C. (2019) Effect of carbon-negative aggregates on the strength properties of concrete for permeable pavements. International Journal of Pavement Engineering, 21 (14). pp. 1823-1831. ISSN 1029-8436 (Print), 1477-268X (Online) (doi:10.1080/10298436.2019.1567924)

Tripathi, Nimisha, Singh, Raj S. and Hills, Colin D. (2018) Microbial removal of sulphur from petroleum coke (petcoke). Fuel, 235. pp. 1501-1505. ISSN 0016-2361 (doi:10.1016/j.fuel.2018.08.072)

Tripathi, Nimisha, Choppala, Girish, Singh, Raj S. and Hills, Colin D. (2017) Impact of modified chitosan on pore water bioavailability of zinc in contaminated soil. Journal of Geochemical Exploration, 186. pp. 94-99. ISSN 0375-6742 (doi:10.1016/j.gexplo.2017.12.005)

Tripathi, Nimisha, Hills, Colin D., Singh, Raj S. and Carey, Paula J. (2017) Construction: use waste for building. Nature, 550 (457). ISSN 0028-0836 (Print), 1476-4687 (Online) (doi:10.1038/550457d)

Lei, Ming, Peng, Liang, Tie, Baiqing, Liao, Bohan, Hills, Colin D., Song, Zhengguo and Tang, Zhen (2017) Effect of mineral-based amendments on rice (Oryza sativa L.) growth and cadmium content in plant and Polluted soil. Environmental Engineering Science. ISSN 1092-8758 (Print), 1557-9018 (Online) (doi:10.1089/ees.2016.0328)

Kucsh, Sigrid and Hills, Colin (2017) The link between e-waste and GDP—new insights from data from the pan-European region. Resources, 6 (2):15. ISSN 2079-9276 (Print), 2079-9276 (Online) (doi:10.3390/resources6020015)

Ngene, Stanley, Tota-Maharaj, Kiran, Eke, Paul and Hills, Colin (2016) Environmental and economic impacts of crude oil and natural gas production in developing countries. International Journal of Economy, Energy and Environment, 1 (3). pp. 64-73. (doi:10.11648/j.ijeee.20160103.13)

Lake, Craig, Choi, Hun, Hills, Colin D., Gunning, Peter and Manaqibwala, Idris (2016) Manufactured aggregate from cement kiln dust. Environmental Geotechnics. pp. 1-12. ISSN 2051-803X (Online) (doi:10.1680/jenge.15.00074)

Jamshidi, Reza Jolous, Lake, Craig B., Gunning, Peter and Hills, Colin D. (2016) The effect of freeze/thaw cycles on the performance and microstructure of cement-treated soils. Journal of Materials in Civil Engineering, 28 (12). ISSN 0899-1561 (Print), 1943-5533 (Online) (doi:10.1061/(ASCE)MT.1943-5533.0001677)

Tripathi, Nimisha, Singh, Raj S. and Hills, Colin D. (2016) Soil carbon development in rejuvenated Indian coal mine spoil. Ecological Engineering, 90. pp. 482-490. ISSN 0925-8574 (doi:10.1016/j.ecoleng.2016.01.019)

Araizi, Paris K., Hills, Colin D., Maries, Alan, Gunning, Peter J. and Wray, David S. ORCID: https://orcid.org/0000-0002-0799-2730 (2016) Enhancement of accelerated carbonation of alkaline waste residues by ultrasound. Waste Management, 50. pp. 121-129. ISSN 0956-053X (doi:10.1016/j.wasman.2016.01.006)

Maries, Alan, Hills, Colin, Carey, Paula and Ostle, S-J (2013) Linked low carbon manufacture of cement and precast concrete. Advances in Applied Ceramics, 112 (4). pp. 202-206. ISSN 1743-6753 (Print), 1743-6761 (Online) (doi:10.1179/1743676112Y.0000000057)

John, U.E., Jefferson, I., Boardman, D.I., Ghataora, G.S. and Hills, C.D. (2011) Leaching evaluation of the cement stabilisation/solidification treatment of kaolin clay. Engineering Geology, 123 (4). pp. 315-323. ISSN 0013-7952 (doi:10.1016/j.enggeo.2011.09.004)

Gunning, Peter, Hills, Colin D., Antemir, Aurora and Carey, Paula J. (2011) Secondary aggregate from waste treated with carbon dioxide. Proceedings of the ICE - Civil Engineering, 164 (5). pp. 231-239. ISSN 0965-089X (Print), 1751-7672 (Online) (doi:10.1680/coma.1000011)

Xue, Gang, Liu, Huanhuan, Chen, Quanyuan, Hills, Colin, Tyrer, Mark and Innocent, Francis (2010) Synergy between surface adsorption and photocatalysis during degradation of humic acid on TiO2/activated carbon composites. Journal of Hazardous Materials, 186 (1). pp. 765-772. ISSN 0304-3894 (doi:10.1016/j.jhazmat.2010.11.063)

Antemir, A., Hills, C. D., Carey, P. J., Magnié, M.-C. and Polettini, A. (2010) Investigation of 4-year-old stabilised/solidified and accelerated carbonated contaminated soil. Journal of Hazardous Materials, 181 (1-3). pp. 543-555. ISSN 0304-3894 (doi:10.1016/j.jhazmat.2010.05.048)

Antemir, Aurora, Hills, Colin D., Carey, Paula J., Gardner, Kevin H., Bates, Edward R. and Crumbie, Alison K. (2010) Long-term performance of aged waste forms treated by stabilization/solidification. Journal of Hazardous Materials, 181 (1-3). pp. 65-73. ISSN 0304-3894 (doi:10.1016/j.jhazmat.2010.04.082)

Gunning, Peter, Hills, Colin D. and Carey, Paula J. (2010) Accelerated carbonation treatment of industrial wastes. Waste Management, 30 (6). pp. 1081-1090. ISSN 0956-053X (doi:10.1016/j.wasman.2010.01.005)

Chen, Quanyuan, Ke, Yujuan, Zhang, Lina, Tyrer, Mark, Hills, Colin D. and Xue, Gang (2009) Application of accelerated carbonation with a combination of Na2CO3 and CO2 in cement-based solidification/stabilization of heavy metal-bearing sediment. Journal of Hazardous Materials, 166 (1). pp. 421-427. ISSN 0304-3894 (doi:10.1016/j.jhazmat.2008.11.067)

Gunning, Peter J., Hills, Colin D. and Carey, Paula J. (2009) Production of lightweight aggregate from industrial waste and carbon dioxide. Waste Management, 29 (10). pp. 2722-2728. ISSN 0956-053X (doi:10.1016/j.wasman.2009.05.021)

Gunning, Peter, Hills, Colin and Carey, Paula (2009) Production of lightweight aggregate from industrial waste and carbon dioxide. Waste Management, 29 (10). pp. 2722-2728. ISSN 0956-053X (doi:10.1016/j.wasman.2009.05.021)

Chen, Quanyuan, Luo, Zhou, Hills, Colin, Xue, Gang and Tyrer, Mark (2009) Precipitation of heavy metals from wastewater using simulated flue gas: sequent additions of fly ash, lime and carbon dioxide. Water Research, 43 (10). pp. 2605-2614. ISSN 0043-1354 (doi:10.1016/j.watres.2009.03.007)

Chen, Quanyuan, Zhang, Lina, Ke, Yujuan, Hills, Colin and Kang, Yanming (2009) Influence of carbonation on the acid neutralization capacity of cements and cement-solidified/stabilized electroplating sludge. Chemosphere, 74 (6). pp. 758-764. ISSN 0045-6535 (doi:10.1016/j.chemosphere.2008.10.044)

Chen, Q Y, Tyrer, M, Hills, Colin, Yang, X M and Carey, Paula (2009) Immobilisation of heavy metal in cement-based solidification/stabilisation: A review. Waste Management, 29 (1). pp. 390-403. ISSN 0956-053X (doi:10.1016/j.wasman.2008.01.019)

Chen, Q.Y., Tyrer, M., Hills, C. D., Yang, X.M. and Carey, P. (2009) Immobilisation of heavy metal in cement-based solidification/stabilisation: a review. Waste Management, 29 (1). pp. 390-403. ISSN 0956-053X (doi:10.1016/j.wasman.2008.01.019)

Liu, Jiangying, Xu, Dimin, Xiong, Lan, Hills, Colin, Carey, Paula and Gardner, Kevin (2008) Comparison of properties of traditional and accelerated carbonated solidified/stabilized contaminated soils. Journal of Environmental Sciences, 20 (5). pp. 593-598. ISSN 1001-0742 (doi:10.1016/S1001-0742(08)62099-9)

Costa, Giulia, Baciocchi, Renato, Polettini, Alessandra, Pomi, Raffaella, Hills, Colin D. and Carey, Paula J. (2007) Current status and perspectives of accelerated carbonation processes on municipal waste combustion residues. Environmental Monitoring and Assessment, 135 (1-3). pp. 55-75. ISSN 0167-6369 (Print), 1573-2959 (Online) (doi:10.1007/s10661-007-9704-4)

Chen, Quanyuan, Hills, Colin D., Yuan, Menghong, Liu, Huanhuan and Tyrer, Mark (2007) Characterization of carbonated tricalcium silicate and its sorption capacity for heavy metals: A micron-scale composite adsorbent of active silicate gel and calcite. Journal of Hazardous Materials, 153 (1-2). pp. 775-783. ISSN 0304-3894 (doi:10.1016/j.jhazmat.2007.09.023)

Chen, Q.Y, Hills, C. D., Tyrer, M., Slipper, I. J., Shen, H. G. and Brough, A. (2007) Characterisation of products of tricalcium silicate hydration in the presence of heavy metals. Journal of Hazardous Materials, 147 (3). pp. 817-825. ISSN 0304-3894 (doi:10.1016/j.jhazmat.2007.01.136)

Chen, Q. Y., Hills, C. D., Tyrer, M., Slipper, I., Shen, H. G. and Brough, A. (2007) Characterisation of products of tricalcium silicate hydration in the presence of heavy metals. Journal of Hazardous Materials, 147 (3). pp. 817-825. ISSN 0304-3894 (doi:10.1016/j.jhazmat.2007.01.136)

Shtepenko, Olga, Hills, Colin, Brough, Adrian and Thomas, Mike (2006) The effect of carbon dioxide on β-dicalcium silicate and Portland cement. Chemical Engineering Journal, 118 (1-2). pp. 107-118. ISSN 1385-8947 (doi:10.1016/j.cej.2006.02.005)

Scuzzarella, A, Fernandez Bertos, M, Simons, S J, Hills, Colin and Carey, Paula (2006) Expansion of cohesive gas fluidized binary solid systems. Powder Technology, 163 (1-2). pp. 18-22. ISSN 0032-5910 (Print), 1873-328X (Online) (doi:10.1016/j.powtec.2006.01.002)

Li, Xiaomin, Fernandez Bertos, Marta, Hills, Colin, Carey, Paula and Simon, Stef (2006) Accelerated carbonation of municipal solid waste incineration fly ashes. Waste Management, 27 (9). pp. 1200-1206. ISSN 0956-053X (doi:10.1016/j.wasman.2006.06.011)

Guha, Bhaswati, Hills, Colin, Carey, Paula and Macleod, Cecilia L (2006) Leaching of mercury from carbonated and non-carbonated cement-solidified dredged sediments. Soil and Sediment Contamination: An International Journal, 15 (6). pp. 621-635. ISSN 1532-0383 (Print), 1549-7887 (Online) (doi:10.1080/15320380600959131)

Shtepenko, O., Hills, Colin, Coleman, Nichola and Brough, A. (2005) Characterization and preliminary assessment of a sorbent produced by accelerated mineral carbonation. Environmental Science & Technology, 39 (1). pp. 345-354. ISSN 0013-936X (Print), 1520-5851 (Online) (doi:10.1021/es030113t)

Shtepenko, Olga, Hills, Colin, Coleman, Nichola and Brough, Adrian (2005) Characterization and preliminary assessment of a sorbent produced by accelerated mineral carbonation. Environmental Science and Technology, 39 (1). pp. 345-354. ISSN 0013-936X (Print), 1520-5851 (Online) (doi:10.1021/es030113t)

Fernandez Bertos, M, Simons, S J R, Hills, Colin and Carey, Paula (2004) A review of accelerated carbonation technology in the treatment of cement-based materials and sequestration of CO2. Journal of Hazardous Materials, 112 (3). pp. 193-205. ISSN 0304-3894 (Print), 1873-3336 (Online) (doi:10.1016/j.jhazmat.2004.04.019)

Fernandez Bertos, M, Li, X, Simons, S J R, Hills, Colin and Carey, Paula (2004) Investigation of accelerated carbonation for the stabilisation of MSW incinerator ashes and the sequestration of CO2. Green Chemistry, 6. pp. 428-436. ISSN 1463-9262 (Print), 1463-9270 (Online) (doi:10.1039/b401872a)

Book Section

Shtepenko, O.L., Coleman, Nichola and Hills, Colin (2003) An innovative approach to the synthesis of sorbent materials for metal fixation. In: Brebbia, C. A., (ed.) Water Resources Management II. International Series on Progress in Water Resources, 61 . WIT Press, Southampton, UK, pp. 109-117. ISBN 978-1-85312-967-4 (doi:10.2495/WRM030111)

Book

Tripathi, Nimisha, Singh, Raj S. and Hills, Colin D. (2016) Reclamation of Mine-impacted Land for Ecosystem Recovery. Wiley-Blackwell, UK. ISBN 978-1119057901

Hills, Colin, Gunning, Peter and Bates, Edward (2015) Stabilisation/Solidification of Contaminated Soil and Waste: Science. Hygge Media, UK. ISBN 978-0-9932729-4-3

Bates, Edward and Hills, Colin, (eds.) (2015) Stabilisation/Solidification of Contaminated Soil and Waste: A Manual of Practice. Hygge Media, Great Britain.

Bates, Edward and Hills, Colin (2015) Stabilisation and solidification of contaminated soil and waste: Practice. Hygge Media, Bury, UK. ISBN 9780993272943

Edited Book

Hills, Colin (ed.) (2016) Global Environment Outlook GEO-6: Assessment for the Pan-European Region. UNEP, Nairobi, Kenya. ISBN 978-92-807-3545-1.

Kumar, Sunil, Mukherjee, Somnath, Ashwath, Najappa and Hills, C.D. (eds.) (2011) International Journal of Environmental Technology and Management. Special Issue on Advances in Waste Engineering and Management: Part Two. Inderscience Publishers, Olney, Bucks., UK. ISSN 1466-2132 (Print), 1741-511X (Online)

Lake, Craig B. and Hills, Colin D. (eds.) (2010) 2010 international solidification/stabilization technology forum / Le forum 2010 sur la technologie de la solidification/stabilization. Dalhousie University, Sydney, Nova Scotia, Canada. ISBN 978-0-7703-0026-5

Kumar, Sunil, Mukherjee, Somnath, Aswath, Nanjappa and Hills, C.D. (eds.) (2010) International Journal of Environmental Technology and Management. Special Issue on Advances in Waste Engineering and Management: Part One. Indersience Publishers, Olney, Bucks., UK. ISSN 1466-2132 (Print), 1741-511X (Online)

Conference Proceedings

Tota-Maharaj, Kiran, Hills, Colin and Cheddie, Denver (2017) Low cost urban wastewater infrastructure for environmental sustainability across Caribbean small island developing states (SIDS). In: NexGen Technologies for Mining and Fuel Industries (NxGnMiFu-2017). Allied Publishers PVT. LTD, New Delhi, India, pp. 697-705. ISBN 9789385926402

Tota-Maharaj, Kiran, Monrose, John and Hills, Colin (2017) Novel permeable pavement systems utilising carbon-negative aggregate. In: NexGen Technologies for Mining and Fuel Industries (NxGnMiFu-2017). Allied Publishers PVT.LTD, New Delhi, India, pp. 683-696. ISBN 9789385926402

Hills, Colin, Aliyu, Musa, Chen, Hua-Peng and Harireche, Ouahid (2017) Numerical modelling of geothermal reservoirs with multiple pore media. In: Proceedings 41st Workshop on Modelling on Geothermal Reservoir Engineering. SGP-TR-212 . Stanford University.

Carey, Paula and Hills, Colin (2017) Development of the first commercial use of mineral carbonation: treating waste using accelerated carbonation to manufacture an aggregate. In: NexGen Technologies for Mining and Fuel Industries (Volume I and II). Allied Publishers Pvt. Ltd, New Delhi, pp. 1003-1008. ISBN 978-93-85926-40-2

Tripathi, Nimisha, Hills, Colin D., Gunning, Peter and Singh, Raj S. (2017) Mineralisation of CO2 in wastes for Indian climate change. In: NexGen Technologies for Mining and Fuel Industries (Volume I and II). Allied Publishers Pvt Ltd, New Delhi, pp. 1129-1138. ISBN 978-93-85926-40-2

Hills, Colin, Carey, Paula and Tripathi, Nimisha (2017) Opportunities of CO2mineralisation in Indian waste-based manufactured products. In: NexGen Technologies for Mining and Fuel Industries (Volume I and II). Allied Publishers Pvt Ltd, New Delhi, pp. 1105-1112. ISBN 978-93-85926-40-2

Singh, Raj S., Chaulya, Swadesh, Tripathi, Nimisha and Hills, Colin D. (2017) Revegetation as a tool for mine spoil carbon recovery and dump stability. In: NexGen Technologies for Mining and Fuel Industries (Volume I and II). Allied Publishers Pvt. Ltd, New Delhi, pp. 895-908. ISBN 978-93-85926-40-2

Tripathi, Nimisha, Hills, Colin D., Choppala, Girish and Singh, Raj S. (2017) Modified chitosan for contaminated soil remediation. In: NexGen Technologies for Mining and Fuel Industries (Volume I and II). Allied Publishers Pvt Ltd, pp. 835-848. ISBN 978-93-85926-40-2

Gunning, Peter and Hills, Colin (2015) Negative about carbon: a positive approach. In: ACEME 2015 (Fifth International Conference on Accelerated Carbonation for Environmental and Material Engineering). American Institute of Chemical Engineers (AIChE), New York, USA, pp. 154-161. ISBN 978-1-5108-1549-0

Maries, Alan and Hills, Colin (2015) Ultra-rapid hardening of cement by accelerated carbonation – Past, present and future. In: 5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015 (ACEME). AIChE, New York, pp. 274-283. ISBN 978-1-5108-1549-0

Gunning, Peter and Hills, Colin (2015) Carbon8: Combined carbon capture and waste treatment – A commercial reality. In: Book of extended abstracts of WASCON 2015: Resource Efficiency in Construction. WASCON 2015, Santander, Spain, pp. 140-145. ISBN 978‐84‐606‐8423‐7

Gunning, Peter, Hills, Colin, Gunning, Robert and Maries, Alan (2015) SAPICO2: Production of sustainable construction aggregates through cementation with carbon dioxide. In: Book of extended abstracts of WASCON 2015: Resource Efficiency in Construction. WASCON, Santander, Spain, pp. 133-139. ISBN 978‐84‐606‐8423‐7

Gunning, Peter, Hills, Colin, Gunning, Robert and Maries, Alan (2015) Carbon Dioxide Sequestration in Wastes: The SAPICO2 Project. In: Proceedings of the 5th International Conference on Accelerated Carbonation for Environmental and Material Engineering 2015. American Institute of Chemical Engineers, New York, NY, pp. 169-177. ISBN 978-1-5108-1549-0

Maries, Alan and Hills, Colin (2013) Homogeneous catalysis of the accelerated carbonation of Portland cement. In: 4th International Conference on Accelerated Carbonation for Environmental and Materials Engineering. ACEME, 2013, Leuven.

Gunning, Peter, Hills, C. D. and Carey, P. J. (2013) Commercial application of accelerated carbonation: Looking back at the first year. In: ACEME 2013. ACEME 2013, Leuven, Belgium, pp. 185-192.

John, U. E., Jefferson, Ian F., Ghataora, Gurmel S., Boardman, D. I. and Hills, Colin (2012) Time dependent leachability and potential environmental implications from stabilization/solidification treatment of chromium contaminated clay. In: 5th International Symposium on Contaminated Sediments: Restoration of Aquatic Environment. ASTM International, West Conshohocken, PA, US. ISBN 9780803175402 (doi:10.1520/STP104250)

Alfieri, Felice, Gunning, Peter, Gallo, Michela, Del Borghi, Adriana and Hills, Colin (2012) Monitoring of carbon dioxide uptake in accelerated carbonation processes applied to air pollution control residues. In: Proceedings of ECOS 2012 - The 25th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. Firenze University Press, Perugia, Italy, pp. 205-217. ISBN 978-88-6655-322-9

Gunning, Peter, Hills, Colin and Carey, Paula (2012) Commercial production of accelerated carbonated aggregate from MSWI APCR. In: Proceedings of the 8th International conference on sustainable management of waste and recycled materials in construction. WASCON, Gothenburg, Sweden.

Padfield, A., Carey, Paula, Hills, Colin and Poole, A. (2004) Reuse of quarry fines in production of secondary aggregates. In: Proceedings of the Institution of Civil Engineers. Engineering Sustainability. ISSN 1478-4629 (Print), 1751-7680 (Online)

Conference or Conference Paper

Hills, Colin (2015) SAPICO2 Project: Setting the scene. In: International SAPICO2 Conference, 17 March 2015, Amiens, France. (Submitted)

Gunning, Robert and Hills, Colin (2015) SAPICO2: UK and French Waste Processing and Development. In: International SAPICO2 Conference, 19 March 2015, Amiens, France.

Gunning, Peter, Hills, Colin, Araizi, Paris, Maries, Alan and Wray, David ORCID: https://orcid.org/0000-0002-0799-2730 (2014) Carbon capture using wastes: A review. In: 7th International Scientific Conference: Science and Higher Education in Function of Sustainable Development, 3-4 October 2014, Uzice, Serbia.

Guning, Peter and Hills, Colin (2014) Carbon negative: First commercial application of accelerated carbonation technology. In: 7th International Scientific Conference: Science and Higher Education in Function of Sustainable Development, 3-4 October 2014, Uzice, Serbia.

Araizi, P. K., Hills, C. D., Maries, A., Gunning, P. and Wray, D. S. ORCID: https://orcid.org/0000-0002-0799-2730 (2013) The current status of commercialisation of carbonation technology. In: Fourth International Conference on Accelerated Carbonation for Environmental and Materials Engineering (ACEME 2013), 9-12 APR 2013, Leuven, Belgium.

Gunning, Peter, Hills, Colin, Carey, Paula, Greig, Stephen and Schilling, Malte (2012) Carbonation of MSWI APCr for re-use as a light-weight aggregate. In: Ash Utilisation 2012: Ashes in a Sustainable Society, January 25-27, 2012, Stockholm, Sweden.

Antemir, Aurora, Gunning, Peter, Hills, Colin and Carey, Paula (2008) Accelerated carbonation for the treatment of landfilled cement kiln dust. In: Accelerated Carbonation for Environmental and Materials Engineering Conference, 1-3 October, 2008, Rome, Italy.

Hills, Colin (2007) Introduction to the science behind stabilisation/solidification technology. In: Stabilisation/Solidification Symposium, 29 Aug 2007, Halifax, Nova Scotia, Canada. (Unpublished)