The effects of acid and organo-functionalizations on the surface of Brazilian palygorskite clay was investigated, evaluating its potential in the adsorptive capacity of the drug sodium diclofenac present in wastewaters. The modifications on the clay structure were investigated by X-ray diffraction, X-ray fluorescence, thermogravimetric, differential thermal analysis, Fourier transform infrared spectroscopy, surface area by N2 adsorption (77.5 K) and Zeta potential. The experimental design was carried out to find the best conditions for the adsorption tests, in which concentration, mass and pH were significant. In the kinetic study, the pseudo-second-order model better described the adsorption process for acid and organo-functionalized samples. Such results indicate that the adsorption behavior probably occurs due to the phenomenon of chemisorption. Regarding the adsorption isotherms, the Langmuir model was the one that best adjusted both the experimental data of acid and the organo-functionalized samples, whose maximum adsorption capacity were 179.88 and 253.34 mg/g, respectively. This model also indicates that the sodium diclofenac is adsorbed to monolayers homogeneously through chemisorption. In general, the studied clays proved to be suitable adsorbents for the removal of sodium diclofenac.

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The primary and unhealthy conditions experienced by recyclable material collectors, both professionally and socially, stem from, among other aspects, the lack of implementation of public policies aimed at solid waste management, the scarce development of technologies that optimize the stages of management solid waste management and the professional practice of these workers. The main objective of this work was to develop and evaluate social technologies for the management of dry recyclable solid waste and risk prevention in the professional practice of recyclable material collectors. The work carried out from March 2014 to March 2019, in Campina Grande, state of Paraíba, Brazil, followed the principles of participatory and experimental research and involved recyclable material collectors organized in associations and families that joined the selective collection. Four models of collectors were developed and evaluated for the storage of recyclable solid waste inside and outside homes;

<p>Nos últimos anos, a preocupação com as questões ambientais vem sendo bastante discutidas, onde merece destaque, o descarte indevido do esgoto doméstico no meio ambiente, portanto o presente estudo objetivou realizar a caracterização físico-química e microbiológica do esgoto descartado no solo, no Centro de Ciências e Tecnologia da Universidade Estadual da Paraíba, campus de Campina Grande – PB. Para tanto foram desenvolvidas análises físico-químicas, tais como pH, Fósforo Total, DBO, DQO, Nitratos, Nitritos, Nitrogênio Amoniacal, Orto-Fosfatos e Alcalinidade, bem como análise microbiológica (coliformes). Observou-se que o efluente na unidade em questão não recebe tratamento para seu descarte, sendo identificadas características físico-químicas e microbiológicas de esgoto <em>in natura</em>. Faz-se necessário desta forma, investimentos em análises periódicas para assim realizar um tratamento adequado ao efluente visando-se reduzir os riscos ambientais e de saúde pública. Após os resultados das análises, foi proposto, além do tratamento preliminar, um tratamento biológico para o efluente, do tipo, lagoa facultativa primária seguida de duas lagoas de maturação, onde a eficiência do tratamento nos parâmetros analisados se enquadra aos padrões estabelecidos pelo CONAMA 430/2011, na qual o efluente pós - tratado poderia ser reutilizado para fins menos nobres, destinando a água potável para atividades que requerem uma qualidade melhor.</p><p><strong><em>Physicochemical and microbiological characterization of wasterwater of the UEPB with proposed of treatment for reuse purposes</em></strong></p><p><strong>Abstract</strong><strong>: </strong>In recent years, concern about environmental issues has been widely discussed, which deserves mention the improper disposal of domestic sewage into the environment, so this study aimed to perform the physicochemical and microbiological sewage discarded the soil, in the Science and Technology Center of the State University of Paraiba, campus of Campina Grande - PB. Therefore, we developed physical-chemical analysis such as pH, Total Phosphorus, BOD, COD, Nitrate, Nitrite, Ammonia Nitrogen, Orto-Phosphates and alkalinity, as well as microbiological analysis (coliforms). It was noted that the effluent in the unit in question does not receive treatment for their disposal, identified physical, chemical and microbiological characteristics of raw sewage. It is necessary therefore, investment in periodic reviews thus to carry out an appropriate treatment to effluent aiming to reduce environmental risks and public health. After the analysis results, it was proposed, in addition to preliminary treatment, a biological treatment for the effluent, type, primary facultative pond followed by two ponds maturation, in which the treatment efficiency in the analyzed parameters falls within the standards set by CONAMA 430/2011 in which the effluent post-treaty could be reused for less noble purposes, intended to clean water for activities that require a better quality<strong>.</strong></p>

RESUMO O objetivo deste trabalho foi avaliar as estratégias de sensibilização e formação em Educação Ambiental para gestão de resíduos sólidos aplicadas a líderes comunitários, moradores e catadores de materiais recicláveis em