Brazil in the mud again: lessons not learned from Mariana dam collapse

Cionek, Vivian de Mello; Alves, Gustavo Henrique Zaia; Tófoli, Raffael Marcos; Filho, Jorge Luiz Rodrigues; Dias, Rosa Maria

doi:10.1007/s10531-019-01762-3

Cited by 54 publications

(14 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Filling this knowledge gap is especially important given the occurrence of large-scale environmental accidents in tropical regions that pollute both surface and subsurface systems (e.g. Escobar, 2015;Cionek et al, 2019).…”

Section: Decomposition Of Dissolved Organic Matter By the Riverine Bioreactormentioning

confidence: 99%

The riverine bioreactor: An integrative perspective on biological decomposition of organic matter across riverine habitats

Peralta‐Maraver

Stubbington

Arnon

et al. 2021

Science of The Total Environment

View full text Add to dashboard Cite

We review the biologically driven decomposition processes that take place in riverine ecosystems.• We identify important gaps in our understanding of decomposition processes in rivers from temperate and tropical biomes. • We propose a novel analytical approach to predict decomposition processes from metabolic scaling theory. • Using metadata from 30 rivers, we demonstrate that the slope of community size spectra can predict rates of decomposition.

show abstract

Section: Decomposition Of Dissolved Organic Matter By the Riverine Bioreactormentioning

confidence: 99%

The riverine bioreactor: An integrative perspective on biological decomposition of organic matter across riverine habitats

Peralta‐Maraver

Stubbington

Arnon

et al. 2021

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

“…In particular, the Brazilian data provides a lower bound by multiplying the original number of tailings dams in the GRIDA database (n GRIDA W ), 1,938, by f BR of 2.97. Te result is est BANM being 5,754 (see (2)). Figure 3: Percentage of tailings dams failed per tailings dams built in Brazil, before and after 2000, according to dam type (data from Bowker [22] and Agência Nacional de Mineração [26]).…”

Section: World Tailings Dams and Failuresmentioning

confidence: 95%

“…In addition to fatalities, these failures caused the signifcant release of the stored tailings and major environmental damage. For example, the Dam B1 failure caused about 300 fatalities [1], released around 13 million cubic meters of tailings, afected indigenous and nonindigenous populations, negatively impacted an area of more than 250 hectares in a biodiversity hotspot [2], and traveled approximately ten (10) kilometers. Within 10 seconds, the collapse of Dam B1 was complete, and 75% of the tailings fowed out of the dam in less than 5 minutes.…”

Section: Introductionmentioning

confidence: 99%

Rates and Causes of Tailings Dam Failures

Stark

Moya

Lin

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

This paper analyzes two tailings dam databases and recent failures to assess the local and global failure rates of upstream, downstream, and centerline raised tailings dams. Since 2000, the failure rate for all three raising methods has decreased except in Brazil, which helps explain the recent Brazilian regulations banning upstream raising. However, the failure rates also show that the downstream and centerline raising methods of tailings dams are not immune to failure, so, if mining continues, one of these three raising methods will be used, and all have been involved in prior failures. The paper also presents data on failure mechanisms, showing that slope stability, earthquakes, and overtopping are the three primary causes of tailings dam failures. To continue decreasing the failure rate of tailings dams, the following features and practices should be used in all types of tailings dams: drainage systems, engineering analyses, instrumentation, monitoring, inspection, and qualified external peer review to further reduce the failure rates, especially in Brazil. Finally, a section containing data on release volume as a function of dam height and total storage volume is presented.

show abstract

“…É importante observar que o último Relatório Anual de Barragens constatou a existência de mais de quarenta barragens brasileiras com alto risco de ruptura (CIONEK et al, 2019;THOMPSON et al, 2020), de maneira que é possível que este desastre ocorra novamente e estudos para sua recuperação são úteis e valiosos.…”

Section: Introductionunclassified