Submitted by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-06-30T13:43:29Z No. of bitstreams: 1 DIS_PAMELA_DE_MEDEIROS_ENGELMANN_COMPLETO.pdf: 4731701 bytes, checksum: 84078b031517fd9e5d98eb0cff7eaf16 (MD5) / Made available in DSpace on 2017-06-30T13:43:29Z (GMT). No. of bitstreams: 1 DIS_PAMELA_DE_MEDEIROS_ENGELMANN_COMPLETO.pdf: 4731701 bytes, checksum: 84078b031517fd9e5d98eb0cff7eaf16 (MD5) Previous issue date: 2017-03-10 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / In Brazil, landfills are the unic form of final waste disposal that being still permitted by law. However, the leachate produced during the organic matter decomposition process has a complex composition and can cause contamination of the surface and groundwater of the landfill region. Thus, the monitoring of these areas is extremely important for the characterization of the leachate produced and to avoid environmental damages. Thus, the present study had the objective of monitoring the area of a Brazilian landfill using conventional parameters (metals, anions, ammonia and physicochemical parameters), stable isotopes of dissolved inorganic carbon (?13C-DIC) and dissolved organic carbon (?13C-DOC) allied to multivariate analysis techniques. Samples of raw leachate, leachate of stabilization lagoons, groundwater and surface water adjacent to the landfill were characterized. The conventional and alternative parameters together with the multivariate analysis showed that old cell (C3) is in a more advanced process of stabilization of the organic matter, probably already in the methanogenic phase. The data show that the organic matter stabilization lagoons are being efficient, improving the quality of the leachate. The values found for alkali metals, nitrate and chloride indicate contamination in one of the groundwater monitoring wells (PZ3) and, moreover, the sand extraction area (BG1) present at the side of the landfill study also show variation when compared with local white. Thus, isotopic ratio data for groundwater and surface waters were important to confirm the presence of contamination at the PZ3 and BG1 sampling sites, since an isotopic enrichment of the ?13C-DIC was observed at these sites. / No Brasil, os aterros sanit?rios s?o ?nica forma de deposi??o final de lixo permitida por lei. Por?m, o lixiviado resultante do processo de decomposi??o da mat?ria org?nica tem uma composi??o complexa e pode causar contamina??o das ?guas superficiais e subterr?neas da regi?o. Assim, o monitoramento destas ?reas ? extremamente importante para a caracteriza??o do lixiviado produzido e para evitar danos ao meio ambiente. O presente estudo teve como objetivo monitorar a ?rea de um aterro sanit?rio utilizando par?metros convencionais (metais, ?ons e par?metros f?sico-qu?micos), is?topos est?veis do carbono inorg?nico dissolvido (?13C-DIC) e do carbono org?nico dissolvido (?13C-DOC) aliados a t?cnicas de an?lise multivariada. Foram caracterizadas amostras de lixiviado bruto, lixiviado das lagoas de estabiliza??o, de ?guas subterr?neas e superficiais adjacentes ao aterro. Os par?metros convencionais e alternativos, juntamente com a an?lise multivariada, mostraram que a c?lula de deposi??o de res?duos antiga (C3) encontra-se em um processo mais avan?ado de estabiliza??o da mat?ria org?nica, provavelmente j? na fase metanog?nica. Os dados mostram que as lagoas de estabiliza??o est?o sendo eficientes, melhorando a qualidade do lixiviado. Os valores encontrados para metais alcalinos, nitrato e cloreto indicam contamina??o em um dos po?os de monitoramento de ?gua subterr?nea (PZ3) e, al?m disso, a jazida (BG1) presente ao lado do aterro apresenta varia??o quando comparadas aos brancos. Assim os dados da raz?o isot?pica das ?guas subterr?neas e superficiais foram importantes para confirmar a presen?a de contamina??o nos pontos PZ3 e BG1, uma vez que foi observado um enriquecimento isot?pico da ?13C-DIC nesses locais.