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Meeting the new ELG and CCR requirements- options explained by Patrica Scroggin

Patricia Scroggin, currently a regional practice manager at Burns & McDonnell, explained the options for meeting the CCR and ELG requirements. Bottom ash choices include: the remote chain conveyor which does not require modifications at the boiler but is high in capital cost, and the Magaldi dry cooler which has the advantage of being a dry system but can provide a problem in trying to locate it under the boiler. The pneumatic ash extractor, dewatering bin, geotextile tubes and other options are also available. FGD wastewater options include both biological and physical chemical treatment. The vaporation option results in zero liquid discharge. Zero valent iron is an emerging technology. Presentation: http://www.mcilvainecompany.com/Decision_Tree/subscriber/Tree/DescriptionTextLinks/Powergen_Scroggin_Presentation.pdf Recording: http://home.mcilvainecompany.com/index.php/component/content/article?id=1216

Revision Date:  1/20/2017

Tags:  Burns & McDonnell, CCR Platforming Process Unit, CCR Platforming

Increased Water Treatment Plant Capacity at Mexican Power Station

This paper describes the process and equipment used to treat a Mexican secondary water source in order to supply boiler feed make-up to a combined cycle power plant. RO pretreatment is provided by a highly efficient micro media filter that produces a filtrate with a turbidity of 0.1 – 0.2 NTU and an SDI value of 3 – 5. Following the RO, a compressed-bed ion exchange system was supplied to replace an existing electrodeionization polisher. The final product water produced has a conductivity less than 0.06 μS/cm.

Revision Date:  8/12/2011

Tags:  221112 - Fossil Fuel 化石燃料, Eco-Tec, Burns & McDonnell, Electrodeionization, Filter, Ion Exchange, Compressed Short Bed, Reverse Osmosis, Air Quality, Wastewater, Boiler Feedwater