Temporal behavior analysis of leachate contamination in a tropical landfill
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RESEARCH ARTICLE
Temporal behavior analysis of leachate contamination in a tropical landfill Gabriel Messias Moura de Faria 1 & Giulliana Mondelli 1 Received: 26 August 2019 / Accepted: 25 June 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Leachate generation is one of the problems present in the landfills and dumps, needing monitoring and quantification for the environmental conservation. The objective of this paper is to evaluate temporal data of leachate contamination in a municipal solid waste (MSW) landfill, located in the midwest of São Paulo state, Brazil. The physical-chemical parameters and chemical compounds of the local groundwater were evaluated during 13 years (2002 to 2015). The methodology included data processing and temporal behavior analysis by Mann-Kendall test. Physical-chemical parameters demonstrated a change from acid to basic medium and decrease of BOD, COD, and TOC concentrations. Chemical compounds demonstrated high concentrations close to the administration building of the landfill, despite the decrease of certain compounds (Al, Fe, Hg, K, Na, Pb, SO42−, total PO43−, Zn) over time in the entire landfill area. The results demonstrate that the landfill is in natural attenuation process, and the structures of the surrounding landscape and the location of the MSW disposal are fundamental to understand the presence and rate of each chemical compound. Keywords Groundwater contamination . Environmental monitoring . Developing countries . Natural attenuation . Municipal solid waste (MSW)
Introduction Developing countries have typical pattern in relation to municipal solid waste (MSW): inadequate disposal sites without sanitary treatment (Barella et al. 2013; Gómez-Puentes et al. 2014). In Brazil, 216.619 ton/day of MSW were produced in 2018; since 40.5% of which were disposed in bodies of water, controlled dumps, open dumps, and valley bottoms (ABRELPE, Associação Brasileira de Empresas de Limpeza Pública e Resíduos Especiais 2019), what can generate the subsoil pollution by leachate. Responsible Editor: Philippe Garrigues Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11356-020-09885-9) contains supplementary material, which is available to authorized users. * Gabriel Messias Moura de Faria [email protected] 1
Engineering, Modelling and Applied Social Sciences Centre, UFABC – Universidade Federal do ABC, Av. dos Estados, 5001, Bairro Santa Terezinha, Santo André, SP CEP 09210-580, Brazil
The production of leachate is a recurrent problem in landfills, due to elevate pollution potential (Mor et al. 2006; Schwarzenbach et al. 2010). Identification and characterization of this problem is the main difficulty, since groundwater is complex and not present visible signs as surface water (Akinbile and Yusoff 2011), so, leachate can cause biogeochemical changes and human health risks (Akinbile and Yusoff 2011; Santos and Medeiros 2011; Conde et al. 2015). The behavior and characteristics of leachate in the cases of s
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