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Existing ash ponds that are contaminating groundwater must stop receiving CCR, and close or retrofit with a liner. Existing ash ponds and landfills must comply with structural and location restrictions, where applicable, or close. A pond no longer receiving CCR is still subject to all regulations unless it is dewatered and covered by 2018.
A coal-fired power plant with ash ponds. Bottom ash is part of the non-combustible residue of combustion in a power plant, boiler, furnace, or incinerator.In an industrial context, it has traditionally referred to coal combustion and comprises traces of combustibles embedded in forming clinkers and sticking to hot side walls of a coal-burning furnace during its operation.
This spring, Georgia Power began the very first step in closing Scherer’s Ash Pond 1. “The ash pond operated as a water treatment and solids management unit for years and years,” said Brett ...
Photomicrograph made with a scanning electron microscope and back-scatter detector: cross section of fly ash particles. Fly ash, flue ash, coal ash, or pulverised fuel ash (in the UK)—plurale tantum: coal combustion residuals (CCRs)—is a coal combustion product that is composed of the particulates that are driven out of coal-fired boilers together with the flue gases.
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The A. B. Brown Station ash management impoundment was formed by building a dam to block off the outlet of a natural ravine about 0.5 miles (0.8 km) from the Ohio river. The ash pond consists of two dams. The Lower dam (built in 1978) has been classified by the Indiana DNR as a Significant Hazard (State ID#65-7, permit #D-4405, rev 1). The ...
As of August 2012, Plant Scherer is under Georgia EPD investigation for coal ash pond leeching / drinking water contamination and air pollution / air quality. According to Natural History magazine, as of 2006 [update] Plant Scherer is the largest single point-source for carbon dioxide emissions in the United States. [ 9 ]
Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.
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