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GEA has supplied more than 6000 MW of dense slurry systems

The very first, then intermittently operated Circumix system was installed in 1990 in Hungary, followed by the first continuous operation mixer in 1992. The first real large-scale system was installed in the Mátra Power Station in 1998 and has been working trouble free since. Mátra was also the first power station where, after a major upgrade in 2000, FGD by-products were also handled by the Circumix DSS. The first overseas project was commissioned in 2003 in the Jacksonville North Side Generating Station, in the USA in Florida. By 2014 the Circumix systems served over 6,000 Mwe coal fired power plant capacity and have safely processed and deposited more than 60 million cubic meters of dense slurry. NAES is the partner in North America. The Mcilvaine CCR decision guide includes a presentation by Dale Timmons of NAES.

Revision Date:  6/27/2019

Tags:  221112 - Fossil Fuel 化石燃料, GEA Group, Flyash, Slurry Systems, Processing, Upgrade, USA, Hungary

Dense slurry key to ZLD at Hungarian Power Plant

The U.S. Environmental Protection Agency identified biological treatment as the baseline treatment technology for FGD wastewater in the ELGs. However, it is becoming evident that bioreactors exhibit high capital and operating costs, occupy significant space, and are sensitive to changes in temperature and pH. Dense slurry ash management can sequester large quantities of FGD wastewater along with the contained contaminants through hydration, encapsulation, and entrainment for a fraction of the cost of traditional treatment. By using dense slurry sequestration of FGD wastewater, off-site discharge of effluent can be avoided altogether. Dense slurry was employed at (among other plants) the Matra Power Plant near Budapest, Hungary, and this technology played a key role in helping the plant achieve zero liquid discharge (ZLD). The Matra project is summarized and data are presented that show how the technology helped the plant achieve ZLD and other environmental objectives. Note: As of 2001, NAES Corp is a Division of Itochu

Revision Date:  6/27/2019

Tags:  221112 - Fossil Fuel 化石燃料, U.S. EPA, NAES Corp., Slurry, Wastewater, Zero Liquid Discharge, Hungary