Combustion wastes from thermal power stations and household stoves: A comparison of properties, mineralogical and chemical composition, and element mobilization by water and fertilizers

Pędziwiatr, Artur; Potysz, Anna; Uzarowicz, Łukasz

doi:10.1016/j.wasman.2021.05.035

Cited by 8 publications

(6 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pH values obtained corresponded with the findings published by other authors [11,14,15]. The pH value closely determines the physicochemical changes that may occur in the environment due to ash deposition.…”

Section: Phsupporting

confidence: 88%

“…As demonstrated in previous studies, the sand and silt fractions are of major importance, as they determine the dustiness and filtrating properties of ashes [20,28,29]. Another important property of ashes is their solubility and high susceptibility of their components, especially the toxic ones, to leaching [11,15,27,30,31]. The latter contain potentially toxic elements (PTEs), which mainly include heavy metals (i.e., Al, Cd, Cr, Fe, Ni, Pb, and Zn) and metalloids (As).…”

Section: Introductionmentioning

confidence: 84%

“…When burnt in household furnaces, the material displays a low energy content, in contrast to its combustion in specialist furnaces. Furthermore, installations intended for waste incineration only or furnaces used in the industrial power sector (in power plants or combined heat and power plants-CHP) are equipped with systems that maximally prevent the emissions of pollutants, especially gases and dusts, into the atmosphere [10][11][12][13]. Furnaces in domestic boiler houses do not have dedusting, desulphurisation, or denitrogenation systems.…”

Section: Introductionmentioning

confidence: 99%

“…However, under the currently applicable legal regulations [24], ashes from household furnaces are classified as municipal waste. The reason for this change was the properties and chemical composition of ashes vary greatly and depend on the type of fuel or fuel mixes, as well as other additives burnt in household furnaces [6,11,12,25,26]. Additives such as municipal waste significantly determine the composition and properties of the ash generated.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ecological Risk Assessment Related to the Presence and Toxicity of Potentially Toxic Elements in Ashes from Household Furnaces

Kicińska

Caba

Serwatka³

2022

IJERPH

View full text Add to dashboard Cite

The study material was comprised of 23 samples of ashes generated after the combustion of conventional and alternative fuels combined with selected fractions of municipal waste. The analyses performed involved determining the total concentration of As, Al, Cr, Fe, Ni, and their bioaccessible, ion-exchange, and carbonate-bound fractions. It was found that all of the samples analysed may display an elevated level of susceptibility to the reduction processes, which undoubtedly increases the mobility of trace elements, including the toxic ones. The predominant elements were Al and Fe, whereas considerably lower concentrations were observed for Ni, Cr, and As. The percentage share of the ion-exchange and carbonate-bound fraction ranged from 49% of the total concentration for As to as much as 0.35% in the case of Fe. The calculated Risk Assessment Code index points to a high risk related to the presence of As, medium to low risk related to the presence of Ni and Cr, and low to no risk related to the presence of Fe and Al. The calculated values of the Ecological Risk Index, associated with the combustion of selected municipal waste fractions and low-quality hard coals, combusted individually or in combination with different types of wood, point to a very high ecological risk. This is mainly related to the high concentrations and toxicity of As.

show abstract

Section: Phsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ecological Risk Assessment Related to the Presence and Toxicity of Potentially Toxic Elements in Ashes from Household Furnaces

Kicińska

Caba

Serwatka³

2022

IJERPH

View full text Add to dashboard Cite

show abstract

“…Many industrial by-products and wastes can act as alternative amendments. However, their use and environmental impacts need to be properly analysed in order to avoid further harmful damage [22].…”

Section: Introductionmentioning

confidence: 99%

Application of Steel Slag for Degraded Land Remediation

Díaz-Piloñeta

Fernández

Terrados-Cristos

et al. 2022

Land

View full text Add to dashboard Cite

Land degradation, and especially acidification, are global issues that need to be addressed. A common practice to correct this problem is the use of lime or chemical fertilisers that involve the extraction of raw materials. This study proposes a more sustainable alternative using Basic Oxygen Furnace (BOF) slag. BOF slag is the main waste from the steel industry that is usually accumulated in landfills, which also implies environmental impacts. In this study, a series of laboratory tests have been carried out to analyse the feasibility of using BOF slag for the reclamation of degraded land. For soil acidification, BOF slag will be analysed as a liming agent. On the other hand, the benefits slag can provide as a nutrient source will be tested. As an added value, pre-treated and untreated slag will be compared. The results of these short-time experiments show how BOF slag could be a sustainable alternative as liming agent and amendment. Its use increased the levels of some micro and macronutrients available for plant growth and improved soil quality. It could, therefore, be a sustainable management practice that makes an important contribution to the circular economy.

show abstract