Recycle option for metallurgical sludge waste as a partial replacement for natural sand in mortars containing CSA cement to save the environment and natural resources

Alwaeli, Mohamed; Gołaszewski, Jacek; Niesler, M.; Pizoń, Jan; Gołaszewska, Małgorzata

doi:10.1016/j.jhazmat.2020.123101

Cited by 36 publications

(15 citation statements)

References 34 publications

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“…The production of CSA had less emissions, and the mortars using CSA had better mechanical properties. This translates into a reduction in the negative impact on the environment [32] in the production of a building mix with CSA and MSWIBA versus the usual building mix [33].…”

Section: Results Discussionmentioning

confidence: 99%

Circular Economy for Municipal Solid Waste Incineration Bottom Ash (MSWIBA) Management in Mortars with CSA and CEM I, MSWIBA Glassy Phase, and DTG

Poranek

Łaźniewska-Piekarczyk

Czajkowski

et al. 2021

Energies

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The increase in frequency and intensity of natural disasters is related to the changing global average temperature. Reducing greenhouse gas emissions and the extraction of natural resources is one of the solutions proposed by the European Green Deal and the 17 Sustainable Development Goals (SDGs) approved by the United Nations. The article presents research on municipal solid waste incineration bottom ash (MSWIBA), which is the basis for its circulation in the idea of the circular economy. The MSWIBA study presents differential thermogravimetry (DTG), glassy phase, and mortars using CSA and CEM I. The management of MSWIBA contributes to reducing greenhouse gas emissions and the extraction of natural resources.

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Section: Results Discussionmentioning

confidence: 99%

Circular Economy for Municipal Solid Waste Incineration Bottom Ash (MSWIBA) Management in Mortars with CSA and CEM I, MSWIBA Glassy Phase, and DTG

Poranek

Łaźniewska-Piekarczyk

Czajkowski

et al. 2021

Energies

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“…In 2019, approximately 1300 Mt of metallurgical waste was produced worldwide. Its use is restricted due to its qualification as hazardous waste, but this is not an end state that we cannot change [ 11 ]. In this study, MSW was used as a partial replacement for fine aggregate in concrete.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemical Admixtures on Mechanical and Degradation Properties of Metallurgical Sludge Waste Concrete

et al. 2022

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This study extends the development of concretes with metallurgical sludge waste (MSW) by determining the effect of superplasticizers and air entrainment admixture (AEA). The MSW is a very fine powdery material, and in this case, it was used as a partial replacement of fine aggregate in the mixture. The reference ordinary concrete mixtures without MSW were created for evaluation. The results of concrete density, compressive strength, electrical resistivity, and rapid chloride permeability were obtained and some of them were measured continuously to determine the influence of the chemical admixtures on these characteristics over time. It was found that in general, the MSW substitution slightly lowers the mechanical and durability parameters, but MSW in combination with the chemical admixtures improves the compressive strength in comparison to the reference concrete with the addition of AEA.

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“…In the case of the iron ore sintering process, there are preliminary actions related with the possibility of recovery of iron from zinced blast furnace or basic oxygen furnace slurries or their reuse in other industrial branches. Other actions are focused on the use of novel fuels suitable to substitute conventional fossil fuels currently used in iron ore sintering processes [7][8][9][10][11][12][13]. The latter is in agreement with the creation of industrial symbiosis (IS), targeted on the development of synergy routes between different sectors.…”

Section: Introductionmentioning

confidence: 99%

Biochars in Iron Ores Sintering Process: Effect on Sinter Quality and Emission

et al. 2021

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The article presents results of the research on the use of chars produced during pyrolysis of residual biomass as a substitutional fuel in the iron ore sintering process. Such an approach allows to implement circular economy and industrial symbiosis to the iron and steel branches. The effect of the substitution of conventional coke breeze fuel used in sintering on final sinter quality and emission was examined. With regard to productivity, fuel consumption, and properties of the sinter it was shown that the share of tested biochars in fuel may be kept at 10, and up to 30 wt.%, depending on the biochar type. It was observed that with the use of the biochars, the content of iron oxide in the sinter decreased, which was advantageous. Moreover, the sinter obtained in the presence of biochars was characterized with better strength and abrasion than the sinter obtained with coke breeze-based fuel, improving the final product quality. The presence of biochar influenced the raw exhaust gas composition and resulted in a slight increase of organic and inorganic carbon compounds content, while the amount of sulfur oxides was noticeably decreased. It was concluded that the biochars may be applied in the sintering process at established share in the fuel stream.

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Recycle option for metallurgical sludge waste as a partial replacement for natural sand in mortars containing CSA cement to save the environment and natural resources

Cited by 36 publications

References 34 publications

Circular Economy for Municipal Solid Waste Incineration Bottom Ash (MSWIBA) Management in Mortars with CSA and CEM I, MSWIBA Glassy Phase, and DTG

Circular Economy for Municipal Solid Waste Incineration Bottom Ash (MSWIBA) Management in Mortars with CSA and CEM I, MSWIBA Glassy Phase, and DTG

Effect of Chemical Admixtures on Mechanical and Degradation Properties of Metallurgical Sludge Waste Concrete

Biochars in Iron Ores Sintering Process: Effect on Sinter Quality and Emission

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