Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2015-12-07T23:28:30Z No. of bitstreams: 1 CristianeSouzaDeAraujo_DISSERT.pdf: 1735944 bytes, checksum: de5aad036ee5f2c06acddf9daa3a005d (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2015-12-10T21:31:28Z (GMT) No. of bitstreams: 1 CristianeSouzaDeAraujo_DISSERT.pdf: 1735944 bytes, checksum: de5aad036ee5f2c06acddf9daa3a005d (MD5) / Made available in DSpace on 2015-12-10T21:31:28Z (GMT). No. of bitstreams: 1 CristianeSouzaDeAraujo_DISSERT.pdf: 1735944 bytes, checksum: de5aad036ee5f2c06acddf9daa3a005d (MD5) Previous issue date: 2014-08-15 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / A disposi??o final de res?duos s?lidos urbanos em ?reas inadequadas, sem uma infraestrutura que atenda as medidas de prote??o sanit?ria e ambiental, pode resultar na contamina??o ambiental. Para tanto uma das alternativas para minimizar os impactos decorrentes da disposi??o inadequada de res?duos s?lidos em lix?es ? a estabiliza??o da ?rea mediante o isolamento do maci?o de res?duos com implanta??o de um sistema de cobertura de solo adequado e finalizada por uma camada para crescimento vegetal. Neste contexto, o presente estudo objetivou avaliar a qualidade do solo constru?do na ?rea de um lix?o desativado da regi?o semi?rida tropical a fim de auxiliar o processo de recupera??o dessas ?reas. A ?rea de estudo est? localizada no semi?rido tropical no munic?pio de S?o Jo?o do Sabugi/RN. Foram coletadas amostras de solo na ?rea de lix?o e em mata nativa como padr?o de refer?ncia de qualidade. Aos quais foram submetidas ?s analises dos atributos f?sicos (densidade de part?culas, densidade do solo, granulometria e porosidade total), atributos qu?micos (pH, K+ e Na+ , Ca2+ , Mg2+ e Al3+ troc?veis, acidez potencial, f?sforo dispon?vel, soma de bases, CTC, satura??o por bases, satura??o por Al, satura??o por Na+ e rela??o de adsor??o de s?dio, carbono org?nico total e nitrog?nio total) e os teores total e sol?vel de metais pesados (Mn, Pb, Zn, Cd, Cu, Mo, Co, Cr, Ba e Ni). As diferen?as entre os atributos f?sicos e qu?micos do solo natural e constru?do sugerem redu??o da qualidade do solo na ?rea desativada do lix?o devido a aus?ncia de mecanismos de prote??o ambiental e sanit?ria, bem como defici?ncias no processo de constru??o do solo ap?s a desativa??o da ?rea do lix?o. Al?m, de que a aus?ncia da camada de impermeabiliza??o superior do maci?o de res?duo permitiu a transfer?ncia vertical e consequente acumula??o de metais pesados no solo constru?do para revegeta??o. Desta forma, as defici?ncias detectadas no processo construtivo do solo apontam para a necessidade de interven??o no sentido de aproximar ? condi??o de solo constru?do a condi??o de solo natural, visando acelerar o processo de recupera??o do ecossistema local. / The final disposal of municipal solid waste in unsuitable areas without an infrastructure that meets the health measures and environmental protection, coupled with the lack of technical criteria in phase and decommissioning of the dump can promote environmental degradation. Alternatively to minimize the impacts of this activity for the stabilization of the area by isolating the massive waste with implementation of an adequate and finished by a layer of soil for plant growth final cover system. In this context, the present study aimed to evaluate the quality of the final cover in the area of a disabled dump the tropical semi-arid region in order to assist the process of recovery of these areas. The study area is located in the tropical semi-arid region in S?o Jo?o do Sabugi /RN. Soil samples were collected in the dump area and bushland as a benchmark of quality. To which they were subjected to analysis of physical attributes (particle density, bulk density, grain size and porosity), chemical properties (pH, K + , Na+ , Ca2 + , Mg2 + and Al3 + exchangeable, potential acidity, available phosphorus, sum of bases, CEC, base saturation, aluminum saturation, saturation Na + and adsorption ratio sodium, total organic carbon and total nitrogen) and total and soluble concentrations of heavy metals (Mn, Pb, Zn, Cd, Cu, Mo, Co, Cr, Ba and Ni). The differences between physical and chemical soil under native forest and final cover showing reduction of soil quality in the area off to the dump, which hinders the development of native vegetation and the recovery of the area. The absence of superior waterproofing to allow vertical transfer between the solid waste and the final cover promoted enrichment by chemical elements and heavy metals in excess can impair revegetation. Deficiencies found in the construction process of the final cover point to the need for intervention to accelerate the process of stabilization and recovery of the area of the local ecosystem

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-01-12T14:42:23Z No. of bitstreams: 1 GiovanaDeOliveiraAlves_DISSERT.pdf: 3717149 bytes, checksum: ffb002aaf34255de82a4ccdde1fa691f (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-01-18T14:48:22Z (GMT) No. of bitstreams: 1 GiovanaDeOliveiraAlves_DISSERT.pdf: 3717149 bytes, checksum: ffb002aaf34255de82a4ccdde1fa691f (MD5) / Made available in DSpace on 2017-01-18T14:48:22Z (GMT). No. of bitstreams: 1 GiovanaDeOliveiraAlves_DISSERT.pdf: 3717149 bytes, checksum: ffb002aaf34255de82a4ccdde1fa691f (MD5) Previous issue date: 2016-07-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A desativa??o de lix?es sem medidas de engenharia sanit?ria e ambiental amplia o potencial de degrada??o da ?rea podendo gerar outros passivos ambientais. Esses lix?es devem ser encaminhados a programas de recupera??o, baseados em diagn?sticos do solo que identifiquem os processos de degrada??o ambiental para auxiliar a recupera??o eficaz da ?rea degradada. Diante da obrigatoriedade de recupera??o dessas ?reas estabelecida pela legisla??o brasileira, os munic?pios necessitam de estudos como este para adequa??o a legisla??o brasileira e gest?o de seus res?duos s?lidos. O objetivo geral desse trabalho foi identificar os processos de degrada??o ambiental instalados na ?rea de disposi??o irregular de res?duos s?lidos no semi?rido tropical, a fim de nortear a implanta??o de programas de recupera??o dessa ?rea pelo munic?pio. Para tanto, buscou-se: (1) avaliar os atributos f?sicos e qu?micos do solo de cobertura do lix?o desativado do munic?pio de Olho D??gua do Borges, cujo resultados ser?o apresentados no CAP?TULO I dessa disserta??o; e (2) avaliar se a disposi??o irregular de res?duos s?lidos no lix?o promove a contamina??o do solo por metais pesados e amplia o potencial de difus?o para os demais componentes da bacia hidrogr?fica, o que ser? abordado no CAP?TULO II dessa disserta??o. Amostras de solo foram coletadas nas profundidades de 0-20 cm e 20-40 cm na ?rea do lix?o desativado, na ?rea de drenagem ef?mera do A?ude do Brejo e em ?rea sob mata nativa utilizada como refer?ncia de qualidade no munic?pio de Olho D??gua do Borges/RN. Foram avaliados nas tr?s ?reas os atributos: densidade do solo (Ds) e de part?culas (Dp), porosidade total (PT); granulometria, pH, condutividade el?trica (CE), mat?ria org?nica (MO), f?sforo dispon?vel (P), nitrog?nio total (N), c?tions troc?veis (Ca2+, Mg2+, Na+ e K+), acidez troc?vel e potencial e a partir desses o complexo sortivo do solo, teores de metais dispon?veis e totais. Com isso, a eros?o h?drica e e?lica, revolvimento do substrato de cobertura, sobrecarga de sais, de nutrientes e mat?ria org?nica, al?m da contamina??o por metais pesados s?o processos de degrada??o identificados como consequ?ncia da disposi??o irregular de res?duos s?lidos no solo. Esses processos contribuem com o aumento do potencial de difus?o dos contaminantes do lix?o para a bacia hidrogr?fica, ampliando a ?rea degradada. / Disabling dumpsites without sanitary and environmental engineering measures increases potential degradation of the area and may cause other environmental liabilities. These dumpsites should be sent to recovery programs, based on soil diagnostics to identify the environmental degradation processes to assist degraded area effective recovery. Given the obligation to recover these areas established by Brazilian law, municipalities need studies like this to adapt the Brazilian legislation and solid waste management. The general aim of this study was to identify the environmental degradation processes installed in solid waste irregular disposal area in tropical semiarid, in order to guide the implementation of recovery programs in this area by the municipality. Therefore, we sought to: (1) evaluate the physical and chemical attributes of the cover soil from the deactivated dumpsite of the municipality of Olho D??gua do Borges/RN, which results will be presented in CHAPTER I of this dissertation; and (2) assess whether the irregular disposal of solid waste in the dumpsite promotes soil contamination by heavy metals and expands the potential to spread to other parts of the watershed, which will be addressed in CHAPTER II of this dissertation. Soil samples were collected at depths of 0-20 cm and 20-40 cm on the deactivated dumpsite area, in ephemeral drainage area of Brejo dam and area under native forest used as quality reference in Olho D??gua do Borges/RN. Therefore, the evaluated attributes in three areas were: bulk density (BD) and particles density (PD), total porosity (TP), particle size, pH, electrical conductivity (EC), organic matter (OM), available phosphorus (P), total nitrogen (N), exchangeable cations (Ca2+, Mg2+, Na+ e K+), exchangeable and potential acidity, and from these the sorption complex soil, available and total metals contents. Thus, the water and wind erosion, substrate cover disturbance, overload salts, available phosphorus, nitrogen, organic matter and heavy metal contamination are degradation processes identified as result of irregular disposal of solid waste in the soil. These processes contribute to increase the potential diffusion of dumpsite contaminants to the watershed, expanding the degraded area.