Fly Ash Monitoring Articles
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Online flow measurement of fly ash to control process conditions - Case Study
Customer: Cement plant Material: Fly ash Installation: After hopper and screw feeder Function: Online information about the quality of flow condition APPLICATION Fly ash does have the tendency to create blockages in the cone of the hopper and screw feeder. Our customer was looking for a solution to provide information about the quantity of material flow behind the hopper to control the flow ...
By ENVEA
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Newbuild Power Station in Karlsruhe - Case Study
EnBW is one of the biggest German energy suppliers. A major new build bituminous coal fired power plant construction project is the new boiler number 8 of the Rheinhafen Dampfkraftwerk (RDK) in Karlsruhe. The new boiler will have a capacity of 912 MWel with a heating capacity of 220 MWth. The unit will be erected beside the existing units RDK4s and RDK7 and have a net efficiency of > 46% ...
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Improved understanding of the pozzolanic behaviour of MSWI fly ash with Ca(OH)
2solutionThe study aims at investigating pozzolanic behaviour of MSWI fly ash in a saturated Ca(OH)2 solution at various times. The raw and water–washed fly ashes were selected for the pozzolanic solidification experiment to which mass ratios of the solution to ash (ml/g) were adjusted to be 3 and 10, whereas the solidification times were set from 7 to 28 days and from one to three months. From the XRD ...
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Combined load and leachant pH effects on contaminant release from fly ash
Several studies have been performed recently on the suitability of particulate waste materials as substitute aggregate in load bearing and geoenvironmental structures. To investigate the long-term performance and durability of these recycled materials, the coupled effects of the interacting fluid chemistry and applied load are herein analysed experimentally. The leachability of heavy metals ...
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An economic feasibility model for ash use in flowable fill with integration of logistics and contaminant leaching factors
Encasement of utility cables and pipes in flowable fill monoliths formed in trenches requires the use of materials that satisfy both strength and contaminant leachability limits. Coal combustion ash is often readily available for use in flowable fill construction. The use of ash in desirably large quantities, calls for the determination and selection of the maximum ash mix fraction that meets ...
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Composition, morphology, properties of coal fly ash microspheres and their application for conditioning liquid radioactive waste
Using methods of the Mossbauer spectroscopy, scanning electron microscopy, and thermodynamic analysis of phase formation in silicate multi-component melts, the detailed study of composition, morphology, and properties of fly ash microspheres resulting from combustion of three coals (Irsha-Borodinskii, Kuznetskii and Ekibastuzskii) was carried out. About 60 microspherical products with an iron ...
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