Xing Zhang presents the next IEA Clean Coal Centre webinar on Management of coal combustion wastes on Wednesday 11 December at midday (UK time).
The European Coal Combustion Products Association (Ecoba) estimated that 780 Mt of coal combustion products (CCP) were produced worldwide in 2011. Only about 50% were utilised, the rest went to disposal sites. Disposal of coal combustion waste (CCW) on-site at a power plant may involve decades long accumulation of waste, with hundreds of thousands, if not millions, of tonnes of dry ash or wet ash slurry deposited.
In December 2008, a coal combustion waste pond in Kingston, Tennessee, USA burst. Over 4 million cubic metres of ash sludge poured out, burying houses and rivers in tonnes of toxic waste. Clean-up is expected to continue into 2014 and will cost $1.2 billion.
The incident drew worldwide attention to the risk of CCW disposal. This caused a number of countries to review CCW management methods and regulations.
The webinar outlines the physical and chemical characteristics of the different types of ash generated in a coal-fired power plant. The amount of CCP produced and regulations on CCW management in selected countries have been compiled. The CCW disposal methods are discussed. Finally, the potential environmental impacts and human health risks of CCW disposal, together with the methods used to prevent them, are reviewed.
About IEA Clean Coal Centre (CCC)
The IEA Clean Coal Centre (CCC) is the world’s foremost provider of information on the clean and efficient use of coal worldwide, particularly clean coal technologies, in a balanced and objective way, without political or commercial bias. Our products include in-depth topical reports, literature reviews and online databases. We also provide advice, facilitate R&D networks and organise workshops and conferences. We are funded by member countries and industrial sponsors so our analysis stays impartial.
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