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  • Assessment of the Mercury Content in Coal fed to Power Plants and study of Mercury Emissions from the Sector in India (February 2014)

The report characterizes the coal-fired power sector in India, and includes a description of coal consumption, coal quality, results from coal analysis, pollutants controls in the sector, and an inventory of mercury emissions from the sector.

The report presents a demonstration of mercury air emission reduction at a coal-fired power plant in Russia. A wet particulate matter (PM) scrubber installed in Toliatti thermal plant has been modified to allow for addition of chemical reagents (oxidants) into the closed-loop liquid spray system. The addition of oxidant resulted in significant improvement of mercury capture from 20% total mercury removal (without the additive) up to 60% removal (with the additive).

Black carbon (BC) is a product of inefficient combustion and is involved with several detrimental environmental issues. Global emissions of BC have been increasing over the recent centuries due to industrial development, China and India being the current greatest regional sources. This report summarises India's present and future emissions and highlights areas where reduction strategies are most likely to be effective.

The report summarizes the limited data available on mercury emissions from India, Cambodia, Indonesia, Malaysia, the Philippines, Thailand and Vietnam. Where possible, it includes information on the major sources of mercury, estimates for emissions on current fossil fuel use and industrial activity, regulations or action plans on emissions and recommendations for potential actions in these countries.

The report summarizes the regulatory situation regarding mercury emissions in different countries, the status of mercury control technology development, and the cost of emission reduction in coal-fired power plants. Where possible, the economic evaluation includes any increased costs due to changes in waste disposal options for coal-combustion by-products. The report also considers mercury control options during coal processing and preparation.

The POG is a tool to help determine the approaches to control mercury emissions in coal-fired power plants, in many cases a co-benefit of reducing emissions of other pollutants. The POG allows for a preliminary selection of a mercury control strategy for a given power plant. In general, the POG is also applicable to coal-fired large industrial boilers.  

The report characterizes the coal-fired power sector in China, and includes a description of coal consumption, coal quality, results from coal analysis, pollutants controls in the sector, and an inventory of mercury emissions from the sector.

The report characterizes the coal-fired power sector in The Russian Federation, and includes a description of coal consumption, coal quality, results from coal analysis, pollutants controls in the sector, and an inventory of mercury emissions from the sector.