Emissão de metano por decomposição de resíduo florestal inundado

Zanoni, Maria M. V.; Zanatta, Josiléia Acordi; Dieckow, Jeferson; Kan, Akemi; Reissmann, Carlos Bruno

doi:10.1590/1807-1929/agriambi.v19n2p173-179

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…One of the most common consequences of forest flooding by hydroelectric reservoirs is the production of hydrogen sulphide (H 2 S). Before Balbina, this consequence had already been observed for the Brokopondo HPP (Suriname) and Curuá-Una (Brazil, Pará) [34,35].…”

Section: Balbinamentioning

confidence: 84%

Protected areas as strategies for preserving vegetation cover in the vicinity of hydroelectric projects in the Brazilian Amazon

et al. 2018

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Background: There are several studies associating the construction of power plants to the increase in deforestation rates. However, there are no case studies analyzing deforestation near power plants, seeking to find a logic of how such deforestation occurs and attributing a statistical correlation with some factors that may mitigate or potentiate such deforestation. This study fills this gap on the scientific literature. Although it analyzes four cases, it is relevant given the lack of publications on this topic. Methods: In this study, a comparative analysis of deforestation was conducted in the vicinity of four hydroelectric plant projects in the Amazon forest, aiming particularly to identify measures related to the creation of areas of restricted use, protected areas, and indigenous lands, as a way to minimize the predatory occupation around reservoirs. Results: The results showed that there is a strong negative correlation between the extension of indigenous lands and protected areas and deforestation in the vicinity of the power plants analyzed, even when they are located in areas with a high level of human occupation. This study also revealed, by Pearson correlation analyses, that there are few pairs of variables whose correlations are weak or very weak. There are predominantly moderate, strong, and very strong correlations. Conclusions: Thus, it is suggested that new hydroelectric plant projects in the Amazon should prioritize the creation of areas of restricted use and discourage occupation through settlements and opening of roads, as these variables were determinant for the level of degradation to the environment around the construction works analyzed.

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Section: Balbinamentioning

confidence: 84%

Protected areas as strategies for preserving vegetation cover in the vicinity of hydroelectric projects in the Brazilian Amazon

et al. 2018

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“…This problem happens because, in addition to leachate, another aspect must be considered about the disposal of organic residue when it does not receive the proper treatment: the increase in the emission of greenhouse gases (GHG). Zanoni et al (2015) point out that the decomposition of materials produces mainly methane (CH 4 ). According to Chizzotti et al (2012), this gas can pollute 23 to 25 times more than carbon dioxide (CO 2 ), requiring from nine to 15 years to be eliminated.…”

Section: Introductionmentioning

confidence: 99%

Study of the biogas potential generated from residue: peanut shells

Santos

Lourenzani

Neto

et al. 2021

Rev. Bras. Ciênc. Ambient. (Online)

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The increase in agricultural production generates a large volume of waste, which may lead to concerns about its proper destination. The main economic activity in Herculândia City, Western region of São Paulo State, Brazil, is the production and processing of peanuts. In this process, a large volume of peanut shells is generated. Following the current movement of using waste for energy purposes, in compliance with what was established by the Sustainable Development Goals (SDGs), this work aimed to carry out a study on the biogas potential generated from peanut shells. To this end, a low-cost biodigester prototype was built, which, over a period of 108 days, produced biogas and biofertilizer. The results showed that there was production of biogas from peanut waste; however, the volume produced did not provide savings in electricity costs when compared to the production of biogas from animal waste. Nevertheless, the work demonstrated the importance of providing solutions to the disposal of peanut shells, effectively mitigating future environmental problems, and serving as an alternative for generating sustainable and low-cost energy, especially for small producers.

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