The Coal Combustion and Gasification Products (CCGP) Journal is a joint publication of the University of Kentucky Center for Applied Energy Research and American Coal Ash Association. CCGP is an international, peer-reviewed, online journal that provided a global platform to showcase innovation, research, and best practices in the coal combustion and gasification products community. Article topics include the science and technology of the production, sustainable utilization, chemistry, and environmentally sound handling of all coal combustion and gasification products. CCGP topics include, but are not limited to, regulatory issues, the development, testing, and utilization of emerging technologies, material storage and management, groundwater and environment topics, and landfill and pond issues.
The CCGP Journal is now closed and not accepting new articles. This repository contains all previous publications in the journal.
Volumes were published annually beginning in 2009 (Vol.1) and ending in 2022(Vol.12), however there were no volumes published in 2020 or 2021.
Articles published from 2022
Low-Density and High-Strength Fracking Proppant Made by High Alumina Fly Ash, Shuqiang Ding and Jinder Jow
Gadolinium Enrichment in Association with the Magnetic Fraction of 1 Fly Ash: Real or an Illusion?, James C. Hower, John G. Groppo, Dali Qian, Nicolas J. Briot, Tonya D. Morgan, Shelley D. Hopps, and Elizabeth Cantando
Evidence of Coal Conversion in the Majuba Underground Coal Gasification Pilot Plant, South Africa, L.S. Mokhahlane, N.J. Wagner, and D. Vermeulen
Articles published from 2019
Separation of Unburned Carbon from Coal Conversion Ash: Development and Assessment of a Dry Method, Charlotte J. Badenhorst, Nicola J. Wagner, Bruno R.V. Valentim, Karel S. Viljoen, Ana C. Santos, and Alexandra Guedes
Use of Ponded and Fresh Ashes from China for the Production of Portland/Calcium Sulfoaluminate Clinkers, Tristana Y. Duvallet, Robert B. Jewell, Anne E. Oberlink, Thomas L. Robl, and David Harris
The Role of Ash Mineralogy on Breakthrough Pressure and Contact Angle: A Statistical Evaluation, Jenberu L. Feyyisa and John L. Daniels
Conceptual Groundwater Remedial Alternatives at Coal Combustion Residuals Sites†, Herwig Goldemund and Jeffrey M. Ahrens
Shear Strength of Coal Combustion Product by Vane Shear, Wesley J. Herweynen, Christopher A. Bareither, and Joseph Scalia
Phaselous vulgaris Growth under the Influence of Manufactured Coal Ash Aggregates, Sangchul Hwang, Imiraily Hernandez, Isomar Latorre, and Sahid Rosado
Mineralogy and Geochemistry of Feed Coals and Combustion Residues from Tunçbilek and Seyitömer Coal-Fired Power Plants in Western Turkey, Ali Ihsan Karayigit, Ozlem Yigitler, Seda Iserli, Xavier Querol, Maria Mastalerz, Riza Gorkem Oskay, and James C. Hower
Using the Conceptual Site Model to Efficiently and Effectively Implement Groundwater Monitoring and Corrective Action at Coal Combustion Residual Sites†, Carla Landrum, Jim Feild, Tim Glover, and Alison Dunn
Managing Springs Emanating from Coal Combustion Residual Disposal Impoundments, Mark L. Orzechowski and Daniel M. Tolmer
South Africa’s Power Producer’s Revised Coal Ash Strategy and Implementation Progress, Kelley Reynolds-Clausen and Nico Singh
Fly Ash Composites, A Step toward Pond Ash Composites, Kunigal N. Shivakumar, Wade H. Brown, and Kazi A. Imran
In Situ Characterization of Mixture of Fly Ash and Fluidized Gas Desulfurization By-Product at Tennessee Valley Authority’s Gallatin Ash Stacking Facility†, David J. White, Pavana Vennapusa, Brendan FitzPatrick, Jason F. Hill, and Nicholas McClung
Articles published from 2018
Influence of Flow Rate on Leachability, John L. Daniels and Gautham P. Das
Universal and Excavatable Controlled Low Strength Material Using High Loss on Ignition Fly Ash and Limestone Screenings†, James T. Locum, L.K. Crouch, and Daniel Badoe
Compressibility of Fly Ash under Ko Loading: Strain Rate Effects in Constant Rate of Strain Testing, Jaime A. Mercado, Luis G. Arboleda-Monsalve, Tarunjit S. Butalia, and Pedro J. Amaya
Kinetic and Thermodynamic Parameters for the Adsorption of Methylene Blue Using Fly Ash under Batch, Column, and Heap Leaching Configurations, J.H. Potgieter, S. Pearson, and C. Pardesi
The Role of Dense Slurry in Achieving Zero Liquid Discharge, D.M. Timmons and Istvan Kovacsics
Articles published from 2017
Geopolymerization of Coal Ash to Produce Cementless Binders, Hamid Akbari, Robert Mensah-Biney, and Jonathan Simms
Fate and Impacts of Priority Pollutant Metals in Coal Fly Ash–Soil–Switchgrass Plant Mesocosms, Olushola M. Awoyemi and E. Kudjo Dzantor
Groundwater Monitoring and Data Analysis under the Coal Combustion Residuals Rule, Bruce Hensel
Rare Earth Element Distribution in Fly Ash Derived from the Fire Clay Coal, Kentucky, Madison M. Hood, Ross K. Taggart, Ryan C. Smith, Heileen Hsu-Kim, Kevin R. Henke, Uschi Graham, John G. Groppo, Jason M. Unrine, and James C. Hower
Ponded and Landfilled Fly Ash as a Source of Rare Earth Elements from a Kentucky Power Plant, James C. Hower, John G. Groppo, Kevin R. Henke, Uschi M. Graham, Madison M. Hood, Prakash Joshi, and Dorin V. Preda
The Relative Impact Framework for Evaluating Coal Combustion Residual Surface Impoundment Closure Options: Applications and Lessons Learned, Ari S. Lewis and Andrew B. Bittner
Articles published from 2016
Characteristics and Composition of Magnetic Concentrates of Bottom Ash Samples from Two Types of Thermal Power Plants in Odisha, India, Subir Kumar Das
Coal Ash By-Product from Shanxi Province, China, for the Production of Portland–Calcium Sulfoaluminate, Tristana Y. Duvallet, Thomas L. Robl, Kevin R. Henke, Yongmin Zhou, and David Harris
Influence of Coal-Fired Power Plant Emissions Regulations and Consequent Engineering Controls and Coal-Supply Modifications on Fly Ash Chemistry and Petrology: Examples from Kentucky Power Plants, Madison M. Hood, John G. Groppo, Michelle N. Johnston, James C. Hower, Herek L. Clack, Diego S. de Medeiros, Silvio R. Taffarel, Cesar M.N.L. Cutruneo, and Luis F.O. Silva
Distribution of Uranium and Other Radionuclides in Coal and Coal Combustion Products, with Discussion of Occurrences of Combustion Products in Kentucky Power Plants, James C. Hower, Shifeng Dai, and Greta Eskenazy
Effect of Coal Fly Ash Leachate on the Bioluminescence Intensity of Vibrio fischeri, Shiro Ikeda, Irena Kostova, Hideaki Sekine, and Yoshika Sekine
Analysis of Scientific Investigations Related to Reclamation of Surface Mining Control and Reclamation Act Permitted Coal Mines with Coal Combustion By-Products, Kimery C. Vories
Carbon Dioxide Adsorption Studies on Fly Ash Zeolites, Denitza Zgureva
Articles published from 2015
Recycling of Lignite Coal Fly Ash by its Conversion into Zeolites, Silviya Boycheva, Denitza Zgureva, and Annie Shoumkova
Prediction of the Unburned Carbon Content of Fly Ash in Coal-Fired Power Plants, Saeid R. Dindarloo and James C. Hower
Using Coal Fly Ash in Agriculture: Combination of Fly Ash and Poultry Litter as Soil Amendments for Bioenergy Feedstock Production, E. Kudjo Dzantor, Ekundayo Adeleke, Vanaha Kankarla, Oluwatosin Ogunmayowa, and Dafeng Hui
Fabrication and Testing of Low-Energy Calcium Sulfoaluminate-Belite Cements that Utilize Circulating Fluidized Bed Combustion By-Products, Robert Jewell, Robert Rathbone, Tristana Duvallet, Thomas Robl, and Kamyar Mahboub
Multistage Concentration of Cenospheres in Fly Ash Using the Inverted Reflux Classifier, A. Kiani, J. Zhou, and K.P. Galvin
Strengthening Black Cotton Soil with Fly Ash and Moorum: An Investigation of the Role of Subgrade and Subbase Layers, Gourav Saxena and Nikhlesh Chaurasia
Articles published from 2014
Synthesis and Characterization of High-Iron Alite-Calcium Sulfoaluminate-Ferrite Cements Produced from Industrial By-Products, Tristana Y. Duvallet, Youngmin Zhou, Thomas L. Robl, and Rodney Andrews
Trends in Coal Utilization and Coal Combustion Product Production in Kentucky: Results of the 2012 Survey of Power Plants, James C. Hower, Gerald A. Thomas, and Shelley G. Hopps
Experimental and Modelling Evaluation of Slagging Behaviour of German Lignite, Martin Kaiser and Alexander Ilyushechkin
Fly Ash as a Potential Scrubber of Acidic Wastes from the Phosphate Industries in Israel, Roy Nir Lieberman, Eli Lederman, Ithamar Pelly, and Haim Cohen
Geochemistry and Mineralogy of Coal-Fired Circulating Fluidized Bed Combustion Fly Ashes, Luis F.O. Silva, Marcos L.S. Oliveira, Rubens M. Kautzmann, Claudete G. Ramos, Maria Izquierdo, Shifeng Dai, Jennifer Wilcox, Jeremy Hoffman, and James C. Hower
Articles published from 2013
Chemical Partitioning and Mobility of Trace Elements in Dry Disposed Weathered Ash Conditioned with High-Saline Effluents, S.A. Akinyemi, A. Akinlua, W.M. Gitari, R.O. Akinyeye, and L.F. Petrik
Chemical Weathering and Mobility of Inorganic Species in Dry Disposed Ash: An Insight from Geochemical Fractionation and Physicochemical Analysis, S.A. Akinyemi, W.M. Gitari, A. Akinlua, and L.F. Petrik
Fouling Intensity of Three Indian Coals, S. Balakrishnan and R. Nagarajan
The John Zink Hamworthy Combustion Handbook, 2nd edition, Volume 1: Fundamentals, edited by Charles E. Baukal, Jr., CRC Press, Boca Raton, FL, 2013., Payal A. Chandan
Effects of Coal Combustion By-Product–Encapsulated Ammonium Nitrate on Wheat Yield and Uptake of Nitrogen and Metals, Eton E. Codling
A Note on the Occurrence of Yttrium and Rare Earth Elements in Coal Combustion Products, James C. Hower, Shifeng Dai, Vladimir V. Seredin, Lei Zhao, Irena J. Kostova, Luis F.O. Silva, Sarah M. Mardon, and Gulbin Gurdal
Location of Cerium in Coal-Combustion Fly Ashes: Implications for Recovery of Lanthanides, James C. Hower, John G. Groppo, Prakash Joshi, Shifeng Dai, David P. Moecher, and Michelle N. Johnston
Geotechnical Characterization of Clinker-Stabilized Fly Ash–Coal Mine Overburden Mixes for Subbase of Mine Haul Road, Soumya Ranjan Mallick and Manoj Kumar Mishra
Articles published from 2012
Waste Classification of Slag Generated in a Pilot-Scale Entrained-Flow Gasifier, Ashleigh Cousins, Robin W. Hughes, David J. McCalden, Dennis Y. Lu, and Edward J. Anthony
Cordyline fruticosa Growth and Soil Microbial Quality with Topical Application of Coal Combustion By-Products Aggregates, Sangchul Hwang, Isomar Latorre, and Eileen Irizarry
Quantifying the Benefits of Using Flue Gas Desulfurization Gypsum in Sustainable Wallboard Production, Jin Cheol Lee, Sabrina L. Bradshaw, Tuncer B. Edil, and Craig H. Benson
Potential Indoor Air Exposures and Health Risks from Mercury Off-Gassing of Coal Combustion Products Used in Building Materials, Christopher M. Long, Sonja N. Sax, and Ari S. Lewis
Microstructural and Mineralogical Transformation of Hydraulically Disposed Fly Ash—Implications to the Environment, Jabulani S. Mahlaba, Elsabe P. Kearsley, and Richard A. Kruger
Mineralogical Transformations in Coal Feedstocks during Carbon Conversion, Based on Packed-Bed Combustor Tests: Part 1. Bulk Coal and Ash Studies, Ratale H. Matjie, Colin R. Ward, and Zhongsheng Li
Mineralogical Transformations in Coal Feedstocks during Carbon Conversion, Based on Packed-Bed Combustor Tests: Part 2. Behavior of Individual Particles, Ratale H. Matjie, Colin R. Ward, and Zhongsheng Li
Influence of Activator Solution Formulation on Fresh and Hardened Properties of Low-Calcium Fly Ash Geopolymer Concrete, Carlos Montes and Erez N. Allouche
Articles published from 2011
The leachability of major elements at different stages of weathering in dry disposed coal fly ash, S.A. Akinyemi, A. Akinlua, W.M. Gitari, R.O. Akinyeye, and L.F. Petrik
Effect of Additive on the Performance Characteristics of Centrifugal and Progressive Cavity Slurry Pumps with High Concentration Fly Ash Slurries, Sunil Chandel, S.N. Singh, and V. Seshadri
Impact of Manufactured Coal Ash Aggregates on Water Quality during Open Pit Restoration: 1. A Statistical Screening Test, Sangchul Hwang and Isomar Latorre
Compositional Variations in Pilot Gasifier and Laboratory-Produced Slags and their Impacts on Slag Viscosity and Coal Assessment, Alexander Ilyushechkin, Daniel Roberts, and David Harris
Compaction of High-Ca Fly Ash-Al- and Al-Alloy-Composites: Evaluation of their Microstructure and Tribological Performance, Grigorios Itskos, Angeliki Moutsatsou, Pradeep K. Rohatgi, Nikolaos Koukouzas, Charalampos Vasilatos, and Eleni Katsika
Co-Disposal of Dry FGD By-product with Coal Gasification Ash and Inorganic Brines, Jabulani S. Mahlaba, P.C. Pretorius, Subal Maharajh, and M.P. Augustyn
Influence of Chemical Reagents on Rheological Properties of Fly Ash-Water Slurry at Varying Temperature Environment, H.K. Nail, M.K. Mishra, and Karanam U.M. Rao
A multi-analytical approach to understand the chemistry of Fe-minerals in feed coals and ashes, Marcos L.S. Oliveira, Frans Waanders, Luis F.O. Silva, Andre Jasper, Carlos H. Sampaio, Dursman McHabe, Rachel S. Hatch, and James C. Hower
Geochemical Controls of Coal Fly Ash Leachate pH, William R. Roy and Peter M. Berger
Fullerenes and Metallofullerenes in Coal-Fired Stoker Fly Ash, Luis F.O. Silva, Katia DaBoit, Carmen Serra, Sarah M. Mardon, and James C. Hower
Zinc speciation in power plant burning mixtures of coal and tires, Luis F.O. Silva, Marcos L.S. Oliveira, Carmen Serra, and James C. Hower
Articles published from 2010
Precipitation of Germanium from Coal Fly Ash Leachates, Fatima Arroyo, Constantino Fernandez-Pereira, and Pilar Coca
Zeolite Synthesised from Fused Coal Fly Ash at Low Temperature Using Seawater for Crystallization, Claudia Belviso, Francesco Cavalcante, Antonio Lettino, and Saverio Fiore
Waste Stabilization/Solidification (S/S) of EAF dust using fly ash-based geopolymers. Influence of carbonation on the stabilized solids, Y. Luna Galiano, C. Fernandez Pereira, and J. Vale
Chemistry of coal and coal combustion products from Kentucky power plants: Results from the 2007 sampling, with emphasis on selenium, James C. Hower, Thomas L. Robl, Gerald A. Thomas, Shelley D. Hopps, and Margaret Grider
Manufactured Coal Ash Aggregates for Aqueous TNT Sorption, Sangchul Hwang and Victor Hernandez
Enriched Coal Ash Utilization for Augmenting Production of Rice under Acid Lateritic Soil, S. Karmakar, B.N. Mittra, and B.C. Ghosh
Mechanical Performance of Pavement Geomaterials Stabilized with Fly Ash in Field Applications, Lin Li, Tuncer B. Edil, and Craig H. Benson
Evaluation of the Variables that Influence Mercury Capture in Solid Sorbents, M. Antonia Lopez-Anton, Patricia Abad-Valle, Mercedes Diaz-Somoano, and M. Rosa Martinez-Tarazona
The Effect of Drag-Reducing Additives on the Rheological Properties of Fly Ash-Water Suspensions at Varying Temperature Environment, H.K. Naik, M.K. Mishra, and Rao Karanam U.M.
An Investigation of the Behavior of Raw Calcareous Fly Ash in Mortar Mixtures, Ioanna Papayianni and Eleftherios K. Anastasiou
Erosive Wear in Pipelines at Pneumatic Conveying of Fine Silicon-Containing Materials, Viacheslav Y. Putilov, Vijay K. Agarwal, and Irina V. Putilova
Coal Fired Power Station Ash Products and EU Regulation, Lindon K.A. Sear
Mineralogy and Leaching Characteristics of Coal Ash from a Major Brazilian Power Plant, Luis F.O. Silva, Colin R. Ward, James C. Hower, Maria Izquierdo, Frans Waanders, Marcos L.S. Oliveira, Zhongsheng Li, Rachel S. Hatch, and Xavier Querol
Variations in fly ash composition with sampling location: Case study from a Portuguese power plant, B. Valentim, A. Guedes, D. Flores, C.R. Ward, and J.C. Hower
Testing of Interactions between Coal Ash Leachates and Rock Materials for Mine Backfill Evaluations, Colin R. Ward, David French, Leanne Stephenson, Ken Riley, and Zhongsheng Li
Articles published from 2009
Optical Properties of Coal Combustion Byproducts for Particle-Size Analysis by Laser Diffraction, Robert B. Jewell and Robert F. Rathbone
