PAHs and potentially toxic elements in the fly ash and bed ash of biomass fired power plants

Masto, Reginald Ebhin; Sarkar, Elina; George, Jino; Jyoti, K.K.; Dutta, P.; Ram, L. C.

doi:10.1016/j.fuproc.2014.12.036

Cited by 65 publications

(44 citation statements)

References 81 publications

(118 reference statements)

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“…Masto et al (2015) reported the concentrations of total 16 PAH congeners were 0.19-12.3 mg kg -1 in fly ashes from 4 Indian BFPPs, which suggested the influence of IBPC values and biomass fuels on PAH concentrations.…”

Section: Pahs Concentrations In Cfa Samples For 18 Of Chinese Cfppsmentioning

confidence: 94%

“…The results indicated the influence of different combustion condition, dust removal technique, the burn-up of feed coal among CFPPs with different IBPC values Yang et al, 2002;Kong et al, 2011;Masto et al, 2015). Sloss and Smith (1993) reported three formation mechanisms for PAHs during combustion process: 1) the penetration of feed coal containing-PAHs through combustion area without being destroyed; 2) reformation of ring structures; 3) de novo synthesis of PAHs via oligomerisation and cyclisation of acetylenes formed as a consequence of incomplete combustion.…”

Section: Pahs Concentrations In Cfa Samples For 18 Of Chinese Cfppsmentioning

confidence: 99%

“…While the fly ashes from municipal solid waste and coal co-combustion process dominated by 3-and 4-ring PAHs (Peng et al, 2016). The (Cheruiyot et al, 2015;Masto et al, 2015;Peng et al, 2016).…”

Section: Composition Of Pah Homologs With Different Number Of Ringsmentioning

confidence: 99%

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Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

Chen

Liu

et al. 2016

Aerosol Air Qual. Res.

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For the management of coal fly ashes (CFAs) from coal-fired power plants (CFPPs), characterization of PAHs and PCBs in CFAs is imperative. The 18 PAH and 86 PCB congeners in CFAs collected from 18 large-scale CFPPs in China were detected using GC/MS system. The PAH concentrations were in the range of 5.51-70.9 ng g -1 for 16 CFPPs with individual block power capacity as 600 MW (IBPC-600), significantly lower than 886-916 ng g -1 for 2 CFPPs with IBPC as 200 and 300 MW (IBPC-200/300). Both PAH and PCB congeners for 18 CFPPs were dominated by low molecular weight ones. The 3-and 2-ring PAHs, di-, tri-and tetra-PCBs were the predominant homologs. PAH profiles for 16 CFPPs with IBPC-600 were significantly different from other industrial stacks based on higher coefficients of divergence. The BaP-based toxic equivalency (BaPeq) concentration and BaP-based equivalent carcinogenic power (BaPE) for 16 CFPPs with IBPC-600 were 0.834 ng g -1 and 0.570, much lower than corresponding 20.5 ng g -1 and 15.4 for 2 CFPPs with IBPC-200/300. No difference existed for Σ 86 PCBs between CPFFs with IBPC-600 and -200/300, which ranged from 9.60 to 32.1 ng g -1 . Higher mean carcinogenic PAH concentrations for 2 CFPPs with IBPC-200/300 and PCBs-TEQ concentration for 18 CFPPs indicated the application of CFAs as soil amendment should be prohibited. The PAH concentrations for 18 CFPPs were well correlated with the total organic carbon (TOC) values, while PCB concentrations showed not this trend, indicated the different formation mechanism between PCBs and PAHs.

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Section: Pahs Concentrations In Cfa Samples For 18 Of Chinese Cfppsmentioning

confidence: 94%

Section: Pahs Concentrations In Cfa Samples For 18 Of Chinese Cfppsmentioning

confidence: 99%

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Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

Chen

Liu

et al. 2016

Aerosol Air Qual. Res.

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“…In the studies, naphthalene dominated among the sixteen determined compounds. This is reflected in the findings of Masto et al [47], who discovered high amounts of low molecular weight PAHs, mainly naphthalene, in the resulting ash. According to Kołtowski and Oleszczuk [44], differences between the contents of the studied PAHs in individual biochars may result from the type and strength of interactions between these compounds and biochar.…”

Section: Elemental Composition Of Biocharsmentioning

confidence: 85%

“…Only several studies on the thermodesorption of polycyclic aromatic hydrocarbons have been published so far. As stated by Masto et al [47], the creation and release of PAHs depend on the conditions under which the process is conducted, as well as the type of material converted. These compounds can be released and emitted in the gaseous phase or adsorbed as a solid residue of the process when the temperature decreases.…”

Section: Elemental Composition Of Biocharsmentioning

confidence: 99%

The Effect of Low-Temperature Conversion of Plant Materials on the Chemical Composition and Ecotoxicity of Biochars

Gondek

Mierzwa–Hersztek

Baran

et al. 2016

Waste Biomass Valor

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The chemical composition of biochars varies considerably depending on the chemical composition of biomass used for its production and conditions of the thermal conversion process. In the context of chemical composition, biochars are different from other types of organic matter in that they contain many more aromatic carbon compounds. The aims of this study were as follows:(1) to investigate the effect of pyrolysis process of plant material on the concentrations of macroelements, trace elements and polycyclic aromatic hydrocarbons (PAHs) in the biochars; (2) to evaluate the ecotoxicity of the biochars; (3) to integrate chemical and toxicity properties of biochars in order to assess their safe utilisation as fertiliser materials. It was found that the elemental composition, the contents of macronutrients and trace elements in biochars were determined by the type of converted biomass. In the case of contents of volatile elements, such as nitrogen and sulphur, the process conditions were of great importance. Among the analysed trace elements, only the cadmium content exceeded the limit value for premium class biochars. The process of thermal conversion of organic materials did not cause mobilisation of available forms of most of the studied trace elements. In the course of the study, it was found that the extracts from wheat straw biochar (WSB) were low-toxic, while the extracts from biochars derived from rape straw (RSB), Miscanthus straw (MSB), sawdust (SB), bark (BB) and leaves of trees (LTB) were highly toxic to V. fischeri. Based on the response of the test organism, the analysed biochars were arranged in the following order: WSB \ BB \ RSB \ LTB \ MSB \ SB. The highest total content of PAHs ( P 16 PAHs) was determined in rape straw biochar, and the lowest, in sawdust biochar. The studies revealed a negative correlation between the content of most of PAHs and inhibition of Vibrio fischeri luminescence. Graphical Abstract

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Environmental Effects of Coal and Biomass Ash Generation

Singh

Masto

Hazra

et al. 2020

Ash From Coal and Biomass Combustion

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PAHs and potentially toxic elements in the fly ash and bed ash of biomass fired power plants

Cited by 65 publications

References 81 publications

Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

Characterization of PAHs and PCBs in Fly Ashes of Eighteen Coal-Fired Power Plants

The Effect of Low-Temperature Conversion of Plant Materials on the Chemical Composition and Ecotoxicity of Biochars

Environmental Effects of Coal and Biomass Ash Generation

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