Heavy metal contamination of groundwater due to fly ash disposal of coal-fired thermal power plant, Parichha, Jhansi, India

Verma, Chanchal; Hussain, Athar

doi:10.1080/23311916.2016.1179243

Cited by 70 publications

(22 citation statements)

References 9 publications

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“…It is due to the loss of organic components during volatilization and enrichment of inorganic heavy metals [15]. Depending on the origin of coal, its pre-combustion preparation and combustion technology, the chemical characteristics of fly ash and bottom ash can vary significantly [16].…”

Section: Introductionmentioning

confidence: 99%

Research on Power Plant Ash Impact on the Quality of Soil in Kostolac and Gacko Coal Basins

Savic¹,

Nišić

Malić³

et al. 2018

Minerals

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Increased concentrations of heavy metals in ash can adversely affect the microbiological and pedogenetic processes in soil. The aim of this paper is to determine the impact of ash from unburned coal generated in the Kostolac and Gacko coal basins on the quality of soil in the surrounding environment. The investigation included the surface soil layer that was sampled and tested during 2016 and 2017. A total of 30 samples of Kostolac soil and 9 samples of Gacko soil were analyzed for the content of 8 heavy metals: Cu, Pb, Cd, Zn, Hg, As, Cr and Ni. The analyses were carried out by inductively coupled plasma mass spectrometry (ICPMS) technique according to the EPA 6020A method and the following conclusions were made: Kostolac coal ash affects the quality of the surrounding soil in terms of Ni, Cu and Cr as evidenced by the moderately strong correlation of the Ni-Cu pair (k = 0.71), as well as the Cu-Cr pair (k = 0.73) and strong correlation of the Ni-Cr pair (k = 0.82), while the high recorded concentration of Pb, Hg, As and Zn is attributed to other sources of pollution, such as the traffic network and intensive farming activities, and in some cases, its impact is only local. All recorded concentrations of heavy metals are within the remediation values. The effect of ash on soil contamination in the surroundings of the Gacko coal basin is limited to Ni and Cd, with a strong correlation coefficient of this pair (k = 0.82). The recorded overrun of maximum allowed concentration of Cr is evidenced in only 2 samples, and in terms of this element the contamination of the Gacko soil can be considered to be local. It is concluded that prevailing winds play a part in soil pollution. Cluster analysis showed that Ni, Cr and Zn have very similar values in analyzed soil samples from both basins, while a cluster composed of only Hg, in the case of Gacko, indicates lower contamination with Hg compared to the other heavy metals.

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Section: Introductionmentioning

confidence: 99%

Research on Power Plant Ash Impact on the Quality of Soil in Kostolac and Gacko Coal Basins

Savic¹,

Nišić

Malić³

et al. 2018

Minerals

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“…Different heavy metals like arsenic, cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc have been found in fly ashes from different sources [42,53,54]. Though these heavy metals are in trace amounts, they can contaminate the soil and groundwater when leached and can bioaccumulate in plants and animals [55,56]. When fly ash is not disposed directly but used in the manufacture of other materials the immediate leaching of these components is reduced [42].…”

Section: Generation and Utilizationmentioning

confidence: 99%

High volume Portland cement replacement: A review

Nwankwo

Bamigboye

Davies

et al. 2020

Construction and Building Materials

124

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“…Fly ash (FA) is an industrial by-product derived the boilers in coal-fired enterprises, and typically composed of 90%-99% inorganic material, 1%-9% organic material and many other pollutants such as arsenic, cadmium, chromium, lead, mercury, and etc [1,2]. The stack or landfill of FA not only occupies a lot of land, but also pollutes soil, water and air [3][4][5]. The chemical composition of inorganic material in FA mainly includes SiO 2 and Al 2 O 3 , and contains a small amount of Fe 2 O 3 , CaO, MgO, Na 2 O and the like [6,7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of ZSM-5 zeolite from fly ash and its adsorption of phenol, quinoline and indole in aqueous solution

Liu

2020

Mater. Res. Express

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This work tries to synthesize ZSM-5 zeolite using fly ash (FA) by hydrothermal method and study the adsorption effect of the zeolite on phenol, quinoline and indole in aqueous solution. The zeolites were characterized with x-ray diffraction (XRD), scanning electron microscopy (SEM), x-ray fluorescence (XRF), fourier transformation infrared (FTIR) and N 2 adsorption-desorption isotherm. The characterization results showed that HZSM-5 zeolite was successfully synthesized. The higher mass ratio of sodium carbonate to fly ash during melting is beneficial to improve the purity of ZSM-5 zeolite and its removal rate of organic matters. These results have been confirmed by XRD and principal component analysis (PCA). The adsorption process of phenol, quinoline and indole in aqueous can be well described with the double exponential kinetic model. The adsorption capacity of ZSM-5 zeolite for phenol, quinoline and indoles can be up to 24.41 mg g −1 , 35.99 mg l −1 and 34.05 mg g −1 respectively, and the removal rates can reach up to 82.80%, 84.86% and 83.20% respectively. The optimal pH value for adsorption ranges from 5 to 7.

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Heavy metal contamination of groundwater due to fly ash disposal of coal-fired thermal power plant, Parichha, Jhansi, India

Cited by 70 publications

References 9 publications

Research on Power Plant Ash Impact on the Quality of Soil in Kostolac and Gacko Coal Basins

Research on Power Plant Ash Impact on the Quality of Soil in Kostolac and Gacko Coal Basins

High volume Portland cement replacement: A review

Synthesis of ZSM-5 zeolite from fly ash and its adsorption of phenol, quinoline and indole in aqueous solution

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