Comparison between prediction models and monitored data on leachate generation from a sanitary landfill in the metropolitan region of rio de janeiro, Brazil

Ley, Michelle Bellas Romariz Gaudie; Cardoso, Rodolfo; Mendonça, Henrique Vieira de; Nascentes, Alexandre Lioi; Silva, Leonardo Duarte Batista da

doi:10.15406/ijh.2021.05.00266

Cited by 3 publications

(1 citation statement)

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“…We employed the Swiss method for leachate estimation to assess the amount of leachate that can infiltrate from a solid waste landfill into the soil (Gaudie Ley et al, 2021). The formula for this calculation is as follows:…”

Section: Formulation and Application Of Treatmentsmentioning

confidence: 99%

Impact of leachate on soil microbial diversity and its treatment

Puerta-Tuesta,

Aguirre,

Guerra Lu

et al. 2024

Sci. agropecu.

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This study analyzed the impact of leachate from a temporary landfill on soil microbial diversity in Tingo María, Huánuco region, Peru. Three treatments were used: untreated soil (S), addition of stream water (T0), leachate (T1), and leachate treated by coagulation and flocculation (T2), with 828.5 ml/week added in three weekly doses. Soil samples were collected from the Reserved Forest of the Universidad Nacional Agraria de la Selva. Twenty-one randomly distributed soil samples were taken and homogenized for analysis. Soil quality parameters measured included sand, clay, silt, texture, pH, organic matter, nitrogen, phosphorus and potassium. As for microorganisms, viable aerobes, lactobacilli, actinomycetes, fungi, nitrogen-fixing bacteria, and Escherichia coli were quantified using specific culture and counting methods for each of them. To evaluate the impact of the leachate on microbial diversity, equity indices (Shannon and inverse Simpson), dominance indices (complementary Simpson and Berger Parker) and the percentage composition of each microorganism per treatment were used. An ANOVA was performed to estimate differences in microbial diversity, with a Tukey test at a significance level of α = 0.05. The study showed that leachates affect soil microbial diversity, reducing equity and increasing the dominance of certain species such as E. coli. They also alter physicochemical parameters, decreasing organic matter and nitrogen but increasing other elements such as phosphorus and potassium. This could have implications for soil health and functionality.

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Section: Formulation and Application Of Treatmentsmentioning

confidence: 99%