The Technical Expert Group established by the UNEP Diplomatic Conference on the Minamata Convention on Mercury is collecting information on case studies which demonstrate mercury reductions at coal-fired facilities, both power stations and industrial boilers. Selected case studies may be included as support within the new BAT/BEP (best available technology/best environmental practice) guidance document being produced under the Minamata Convention. Once the convention comes into force, all new coal-fired utilities will be required to be fitted with BAT/BEP for mercury and countries may choose this as a control option for some existing plants, depending on individual national action plans. It is therefore vital that the guidance document provide adequate information on all the options available for mercury control. These can include:
– Fuel cleaning, switching or blending
– Plant efficiency upgrading
– Co-benefit enhancements through controls for SO2, NOx and particulates
– Specific mercury controls such as sorbents and oxidants
A draft template is now available listing the minimum information required for the case studies. This includes plant size and configuration, fuel characteristics, control technologies and, of course, mercury reduction rate. Given the variety of situations in which the control technologies will used ,the Case Studies do NOT all need to demonstrate >90% mercury control. Lower rates of mercury reduction in a more economic manner may be appropriate in some countries where there are technical, geographic and/or financial constraints. As much as possible, the case studies should include indications of potential cost and applicability in developing countries and emerging economies. They should be based on a long term, full-scale demonstration.
Case studies are welcomed from utilities, research organisations and commercial companies alike. If necessary, identifying features of the plant/location can be kept out of the case study. The first wave of case studies is requested for completion by 24th April 2014 and should be sent to [email protected] A subsequent call for case studies will be established following a review of the first wave.
The UNEP Global Mercury Coal Partnership area will be holding a meeting back to back with the MEC Conference in Florida, USA from 22-25th April 2014. During this time, the template will be discussed and work will commence to create a group to review the case studies to select the most appropriate examples for the guidance document. The partnership meeting is open to all partners of the Global Mercury Partnership – If anyone wishes to bring along a preliminary case study, wants to find out more about the guidance document, or is interested in how to join the Review Group, please join us at MEC/Coal Partnership meeting: