Distributed Temperature Measurement in a Self-Burning Coal Waste Pile through a GIS Open Source Desktop Application

Duarte, Lia; Teodoro, Ana Cláudia; Gonçalves, J.; Ribeiro, Joana; Flores, Deolinda; Lopez-Gil, Alexia; Dominguez-Lopez, Alejandro; Angulo-Vinuesa, Xabier; Martín‐López, Sonia; Gonzalez-Herraez, Miguel

doi:10.3390/ijgi6030087

Cited by 16 publications

(10 citation statements)

References 40 publications

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“…A specific feature of the burning coal seams is constant temperature fluctuations ( Duarte et al, 2017 ). The intensity of heat steam from underground, ambient air temperature, wind, humidity, precipitation and light can all cause temperature changes ( Wang et al, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

The low-temperature germinating spores of the thermophilic Desulfofundulus contribute to an extremely high sulfate reduction in burning coal seams

Karnachuk,

Rusanov,

Panova

et al. 2023

Front. Microbiol.

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Burning coal seams, characterized by massive carbon monoxide (CO) emissions, the presence of secondary sulfates, and high temperatures, represent suitable environments for thermophilic sulfate reduction. The diversity and activity of dissimilatory sulfate reducers in these environments remain unexplored. In this study, using metagenomic approaches, in situ activity measurements with a radioactive tracer, and cultivation we have shown that members of the genus Desulfofundulus are responsible for the extremely high sulfate reduction rate (SRR) in burning lignite seams in the Altai Mountains. The maximum SRR reached 564 ± 21.9 nmol S cm−3 day−1 at 60°C and was of the same order of magnitude for both thermophilic (60°C) and mesophilic (23°C) incubations. The 16S rRNA profiles and the search for dsr gene sequences in the metagenome revealed members of the genus Desulfofundulus as the main sulfate reducers. The thermophilic Desulfofundulus sp. strain Al36 isolated in pure culture, did not grow at temperatures below 50°C, but produced spores that germinated into metabolically active cells at 20 and 15°C. Vegetative cells germinating from spores produced up to 0.738 ± 0.026 mM H2S at 20°C and up to 0.629 ± 0.007 mM H2S at 15°C when CO was used as the sole electron donor. The Al36 strain maintains significant production of H2S from sulfate over a wide temperature range from 15°C to 65°C, which is important in variable temperature biotopes such as lignite burning seams. Burning coal seams producing CO are ubiquitous throughout the world, and biogenic H2S may represent an overlooked significant flux to the atmosphere. The thermophilic spore outgrowth and their metabolic activity at temperatures below the growth minimum may be important for other spore-forming bacteria of environmental, industrial and clinical importance.

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Section: Discussionmentioning

confidence: 99%

The low-temperature germinating spores of the thermophilic Desulfofundulus contribute to an extremely high sulfate reduction in burning coal seams

Karnachuk,

Rusanov,

Panova

et al. 2023

Front. Microbiol.

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“…Além dos estudos de caracterização dos materiais das escombreiras e produtos da combustão, a escombreira de São Pedro da Cova tem sido alvo de investigação no âmbito de dois projetos de investigação científica, nomeadamente os projetos ECOAL e COALMI-NE. O projeto de investigação científica ECOAL -Gestão ecológica de pilhas de resíduos de carvão (2013-2015) teve como principais objetivos a monitorização remota, de forma distribuída e contínua da temperatura de combustão e emissão de gases na escombreira de São Pedro da Cova, com base em sensores de fibra ótica 8,9 . O projeto de investigação COALMINE -Resíduos de exploração de carvão: avaliação, monitorização e recuperação de impactes ambientais através de deteção remota e análise geoestatística (2018-2021) tem como principais objetivos o estudo de solos e águas da área envolvente à escombreira de São Pedro da Cova, que permitirá a caracterização e quantificação dos impactes ambientais causados pela autocombustão 10 .…”

Section: Revista De Ciência Elementarunclassified

Escombreiras de carvão em autocombustão

Ribeiro

2020

Rev. Ciência Elem.

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A exploração mineira de carvão na Bacia Carbonífera do Douro causou impactes negativos no ambiente, dos quais se destacam as escombreiras de materiais estéreis e rejeitados da exploração e beneficiação do carvão. A autocombustão das escombreiras representa um impacte ambiental ainda mais significativo que pode afetar o ambiente, ecossistemas, a biodiversidade e a saúde humana, devido à emissão atmosférica de partículas, gases que contribuem para o efeito de estufa, compostos orgânicos voláteis e poluentes, e à mobilização de compostos químicos para os solos e águas das áreas envolventes, principalmente através da percolação de águas. Minas de Carvão em Portugal A atividade mineira relacionada com a exploração de carvão em Portugal ocorreu num total de 143 minas. Destas, destacam-se pela sua importância, as minas da Bacia Carbonífera do Douro, da Bacia de Lignites de Rio Maior, da Bacia de Santa Susana e da Bacia do Cabo Mondego 1. A primeira concessão está registada em 1850, embora se saiba que a exploração de carvão em São Pedro da Cova teve início em 1795. A exploração de carvão em Portugal terminou em 1994, com o encerramento da mina do Pejão-Germunde. Na inventariação de áreas mineiras abandonadas de Portugal 2 , realizada pela EDM-Empresa de Desenvolvimento Mineiro, constam as minas de carvão do Moinho da Ordem (Bacia de Santa Susana, em Alcácer do Sal), de Pejão-Germunde (Bacia Carbonífera do Douro, em Castelo de Paiva) e de São Pedro da Cova (Bacia Carbonífera do Douro, em Gondomar). A Bacia Carbonífera do Douro, com enchimento sedimentar datado do Carbónico Superior (período geológico compreendido entre 300 a 360 Ma), é a maior ocorrência de carvão em Portugal, localizando-se entre S. Pedro de Fins (Maia) e Janarde (S. Pedro do Sul), numa faixa com cerca de 53 km de comprimento e 30 a 250 m de espessura (FIGURA 1). Durante quase dois séculos, entre 1795 e 1994, o carvão da Bacia Carbonífera do Douro, do tipo antracite A, foi explorado em dezenas de minas de pequenas dimensões, destacando-se pela sua dimensão e importância socioeconómica, os Coutos Mineiros de São Pedro da Cova e do Pejão. O carvão explorado foi principalmente utilizado como combustível para produção de energia na Central Termoelétrica da Tapada do Outeiro (desativada desde 2004).

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“…There are a few generic least-cost path plugins available in QGIS, but none of them incorporates an archaeology-specific methodology, as many GIS users combine QGIS algorithms with ArcGIS tools to achieve the desired results [16][17][18]. This work objective is to automate the cost-distance modelling for SCA at archaeological sites by creating a QGIS open-source application.…”

Section: Introductionmentioning

confidence: 99%

A GIS open source application for cost distance modelling for site catchment analysis of prehistoric sites

Duarte,

Godinho,

Gomes

et al. 2023

Earth Resources and Environmental Remote Sensing/Gis Applications XIV

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Archaeological research employing least-cost analysis and Geographic Information Systems (GIS) has increased over the past decade. In the Portuguese archaeological research, several approaches were applied to estimating the cost-distance, describing the relationship between travel distances and their associated costs. Archaeologically, Site Catchment Analysis (SCA) consists of a territorial analysis of the area surrounding a site that its inhabitants can exploit in terms of natural resources. There are a few generic least-cost path plugins available in QGIS software, but none of them incorporates an archaeology-specific methodology, as many GIS users combine QGIS algorithms with ArcGIS tools to achieve the desired results. This work’s objective is to automate the cost-distance modelling for SCA at archaeological sites by creating a QGIS open-source application. Tobler's hiking function and a set of geographic information – slope, aspect, rivers - were implemented in the application, allowing the evaluation of archaeological hypotheses in a specific research study area. The application was tested for Northwest Portugal in a region comprised of the districts of Porto, Braga, and Viana do Castelo, where an inventory of archaeological sites from the second millennium BC until 500 BC was compiled. The creation of SCA maps for archaeological sites enabled the detection of a few differences in the composition of one hour walking territories. This suggests the existence of a set of similarities between these territories, despite their different topographic histories. For archaeologists, the application has benefits for automating the creation of specific maps and streamlining the process of making these models.

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Distributed Temperature Measurement in a Self-Burning Coal Waste Pile through a GIS Open Source Desktop Application

Cited by 16 publications

References 40 publications

The low-temperature germinating spores of the thermophilic Desulfofundulus contribute to an extremely high sulfate reduction in burning coal seams

The low-temperature germinating spores of the thermophilic Desulfofundulus contribute to an extremely high sulfate reduction in burning coal seams

Escombreiras de carvão em autocombustão

A GIS open source application for cost distance modelling for site catchment analysis of prehistoric sites

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