Results 21 to 30 of about 96,863 (233)

Phosphorus Speciation in Coal Bottom Ash

open access: yesAtomic Spectroscopy, 2011
Coal, coal bottom ash (CBA), and coal fly ash contain many elements in different forms which may change during the coal combustion process. A true understanding of the dynamics of phosphorus (P) in the natural environment requires an expanded knowledge of its oxidation-reduction (redox) cycling.
Aydin, Firat   +3 more
openaire   +1 more source

A Comprehensive Review on the Properties of Coal Bottom Ash in Concrete as Sound Absorption Material

open access: yesMATEC Web of Conferences, 2017
The government is currently implementing policies to increase the usage of coal as fuel for electricity generation. At the same time, the dependency on gas will be reduced.
Ramzi Hannan Nurul Izzati Raihan   +3 more
doaj   +1 more source

Distribution of Rare-Earth Elements in Ashes Produced in the Coal Combustion Process from Power Boilers

open access: yesEnergies, 2023
The growing demand for rare-earth elements and yttrium (REY) in modern technologies has resulted in the systematic depletion of primary ores. For this reason, research is being conducted around the world on alternative sources of rare-earth elements, e.g.
Zdzisław Adamczyk   +3 more
doaj   +1 more source

LIMBAH BATUBARA SEBAGAI BAHAN CAMPURAN PERBAIKAN LAPISAN TANAH DASAR DI KALIMANTAN SELATAN

open access: yesAl-Ulum, 2020
The coal waste that is generated from the steam power plant (PLTU) process can cause environmental pollution. The coal waste is then investigated to be used as a mixture to stabilize the subgrade of road construction for the South Kalimantan area.
Yasruddin Yasruddin   +2 more
doaj   +1 more source

Effect of Finely Ground Coal Bottom Ash as Replacement for Portland Cement on the Properties of Ordinary Concrete

open access: yesApplied Sciences, 2023
This study investigates the use of finely ground coal bottom ash (FGCBA) as a substitute for Portland cement in concrete, comparing it with coal fly ash from the same power plant.
Chun-Wei Chuang, Tai-An Chen, Ran Huang
doaj   +1 more source

Co-Combustion Characteristics of Municipal Sewage Sludge and Coal in a Lab-Scale Fluidized Bed Furnace

open access: yesEnergies, 2023
The co-combustion of dry coal and sludge was carried out in a self-built laboratory scale fluidized bed furnace. We used FTIR spectroscopy, high-resolution gas chromatography, high-resolution mass spectrometry, and XRF to capture and dynamically observe ...
Zuopeng Qu   +5 more
doaj   +1 more source

Fouling and Slagging Investigation on Ash Derived from Sasol Coal Using ICP and XRF Analytical Techniques

open access: yesApplied Sciences, 2022
During coal combustion in boilers, light fly ash particles are carried away along with the hot flue gases and the heavier bottom ash particles fall to the bottom of the boiler.
Bai Kamara   +2 more
doaj   +1 more source

A study on physical properties of mortar mixed with fly-ash as functions of mill types and milling times [PDF]

open access: yes, 2016
Coal ash, a material generated from coal-fired power plants, can be classified as fly ash and bottom ash. The amount of domestic fly ash generation is almost 6.84 million tons per year, while the amount of bottom ash generation is 1.51 million tons.
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core   +1 more source

Design Experiment for Leveraging Material Value Coal Ash as Material Mixture of Paving Block

open access: yesMATEC Web of Conferences, 2018
The coal-fired thermal power plant is the main source of coal ash production. Coal ash collected at the bottom of the furnace (boiler) is called coal bottom ash (CBA) and fly ash remaining combustion called coal fly ash (CFA).
Fernanto Harris Setyo   +1 more
doaj   +1 more source

Evaluation of Technical Feasibility of Reusing Coal Ash in Dense Asphalt Mixes by Assessing Mechanical Performance

open access: yesAnais da Academia Brasileira de Ciências, 2021
This manuscript evaluates the technical feasibility of reusing coal ash in the formulation design of dense asphalt mixes. Physicochemical and mineralogical properties of fly and bottom ash matrixes prepared with coal ash were analyzed by scanning ...
BRENO BARRA   +6 more
doaj   +1 more source

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