Effects of fly ash from coal-burning electrical utilities on ecosystem and utilization of fly ash

Baba, Alper; Usmen, Mumtaz

doi:10.1007/1-4020-4738-x_2

Cited by 7 publications

(7 citation statements)

References 34 publications

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“…In addition to gases and slag, fly ash is produced during the coal combustion process. Fly ash is a source of rare elements (kogarko et al 1995, baba andUsmen 2006). It contains a greater fraction of the critical Ree (>30% of total Ree) than ores containing Ree .…”

Section: Energy Security and The Circular Economymentioning

confidence: 99%

The import of energy raw materials and the energy security of the European Union – the case of Poland

2023

Gospodarka Surowcami Mineralnymi - Mineral Resources Management

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Section: Energy Security and The Circular Economymentioning

confidence: 99%

The import of energy raw materials and the energy security of the European Union – the case of Poland

2023

Gospodarka Surowcami Mineralnymi - Mineral Resources Management

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“…Solid waste from the combustion process is currently used in the construction industry, in cement production, for filling voids in the rock mass, etc. Fly ash is also successfully used all over the world in many industries, inter alia, in the cement industry [110,111], in the production of synthetic zeolites [112][113][114], in agricultural applications, and in mine reclamation [37,38]. These methods of fly ash usage eliminate the need for waste storage and thus prevent the migration of harmful substances into soil and water [115].…”

Section: Conventional Fuel Combustion Waste Managementmentioning

confidence: 99%

“…However, even though there are many publications on the disposal of coal fly ash, a small percentage of them treat them as a potential source of REEs [36]. Most of the research focuses on their use in the cement industry, mine reclamation, and agricultural application [36,37], while their use as a potential REE source is a new research area.…”

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confidence: 99%

Methods of Ensuring Energy Security with the Use of Hard Coal—The Case of Poland

Rybak

2021

Energies

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In this article, the authors present methods based on hard coal that may ensure energy security for European Union countries. The research was carried out based on the example of Poland. The main reason for which coal is being gradually withdrawn from the energy mixes in EU countries is its negative impact on the natural environment and the health of citizens and economic factors related to domestic fuel production. The authors propose the creation of energy–chemical clusters as a solution to these problems. It is assumed that the clusters would operate following the principles of the circular economy. We also propose methods for the optimization of the production and transport costs within the cluster. Then, we conduct profitability analysis of the proposed waste management methods. At the level of the designated cluster, using network algorithms enabled us to reduce the transport costs by at least 50%. It is possible to obtain rare earth elements (REEs) worth USD 22,970 from 1 Mg of ash. At the level of the analyzed cluster, this leads to an annual profit of USD 3.5 billion. The profit related to algae production at the cluster level is approximately USD 2.5 bn.

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“…Ash values of up to 12.5 have been reported for ashes produced in the western USA (Chang et al 1977). Many fly ash materials have near neutral pH when originally placed in the pile; the pH of ash usually drops rapidly as pyritic materials weather (Baba and Usmen 2006). The most acidic conditions, related to the waste by-products of a coal-fired thermal power plant, are found in the eastern United States.…”

Section: Introductionmentioning

confidence: 97%

Effects of leachant temperature and pH on leachability of metals from fly ash. A case study: Can thermal power plant, province of Canakkale, Turkey

Baba

Gürdal

Sengunalp

et al. 2007

Environ Monit Assess

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Lignite powered electric generation plants result in increasing environmental problems associated with gaseous emissions and the disposal of ash residues. Especially, low quality coals with high ash content cause enormous quantities of both gaseous and solid fly ash emissions. The main problem is related to the disposal of fly ash, which, in many cases, contains heavy metals. It is known that toxic trace metals may leach when fly ash is in contact with water. In this study, fly ash samples obtained from the thermal power plant in the town of Can in Turkey were investigated for leachability of metals under different acidic and temperature conditions. The experimental results show that a decrease in pH of the leachant favors the extraction of metal ions from fly ash. A significant increase in the extraction of arsenic, cadmium, chromium, zinc, lead, mercury, and selenium ions from the ash is attributed to the instability of the mineral phases. These heavy metals concentrations increase with respect to increasing acidic conditions and temperature. Peak concentrations, in general, were found at around 30 degrees C.

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Effects of fly ash from coal-burning electrical utilities on ecosystem and utilization of fly ash

Cited by 7 publications

References 34 publications

The import of energy raw materials and the energy security of the European Union – the case of Poland

The import of energy raw materials and the energy security of the European Union – the case of Poland

Methods of Ensuring Energy Security with the Use of Hard Coal—The Case of Poland

Effects of leachant temperature and pH on leachability of metals from fly ash. A case study: Can thermal power plant, province of Canakkale, Turkey

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