O trabalho no lixo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Que voz na voz não ouvida?: Uma escuta psicanalítica a catadores de recicláveis

Pós-graduação em Psicologia - FCLAS

De catadores de rua a recicladores cooperados: um estudo de caso sobre empreendimentos solidários

O artigo tem por objetivo analisar e refletir aspectos dos empreendimentos solidários e de suas potencialidades econômicas e sociais. Para sua consecução, optou-se por interpretar o processo organizativo de empreendimento solidário típico, levando-se em consideração suas características particulares, que extrapolam a questão econômica, adquirindo importante dimensão social e política. A pesquisa adotou uma abordagem qualitativa, desenvolvida por meio de estudo de caso de natureza interpretativista, utilizando três estratégias de coleta de dados: observação não participante, entrevistas e análise de documentos. O empreendimento escolhido para estudo foi uma cooperativa de recicláveis formada por antigos catadores de rua. A análise das informações coletadas levou em consideração dois momentos específicos da experiência estudada: sua formação e dinâmica organizacional. Concluiu-se que o caso apresenta insights e portas de entrada interessantes para se refletir os empreendimentos solidários como arranjos organizacionais que não apenas inserem marginalizados na formalidade, mas que podem influenciar positivamente aspectos sociais e políticos da vida de seus trabalhadores, tornando-se mecanismos viáveis de políticas públicas para desenvolvimento local, caracterizado pela redução da desigualdade e resgate da cidadania.

A problematização do lixo e dos catadores: estudos de caso múltiplo sobre políticas públicas sob uma perspectiva foucaultiana

Municipal government policies supporting recycling cooperatives at the start of the 1990s and in the first years of the current century have contributed to resemanticizing trash rather than improving the living conditions of the street scavengers in the city of Rio de Janeiro. This idea was based on multiple case studies conducted in three post-consumption recycling cooperatives which have resulted from such policies. Interviews were held with three municipal government managers and 66 scavengers between 2002 and 2004, during a period of field observation that varied from two to six months in each case. Following a Foucaultian analysis approach, in this thesis post-consumption trash is considered as a discursive production. For this reason, the discourses have been analyzed (through an archaeology and a genealogy) that animated this object as a target condition of public policies. Thus, problematization of the trash has been proposed ¿ characterized by the concomitance of discourses related to an environmental and economic issue surrounding it, which would have impacted the scavengers' work. This proposal made it possible to consider the conditions that enable the scavengers to participate in this discursive production concerning trash. Problematization means the social enhancement of trash (its resemantization as recyclable) and the government policies were an attempt to make the scavengers adapt to this conjuncture. The conditions have been investigated that enable the scavengers to participate in the construction process of the discourse concerning trash (preparation of the strategies), in consonance with public policies. According to the three organizations observed, the public managers assumed that it would be possible for the scavengers to participate in the rules of discourse on trash, when they achieved economy of scale and when they sold to middlemen. Through the findings of the studies, however, it has been concluded that the ways in which these three organizations were managed enabled the scavengers to accede to the rules of discourse regarding problematized trash only when they could control the strategies that allow them to attend what is set by such rules.

Luta por reconhecimento e desigualdade social: uma análise da experiência dos catadores da Asmare em Belo Horizonte (MG)

Esta dissertação discute a dinâmica de luta dos catadores da Asmare em Belo Horizonte (MG)e seus possíveis desdobramentos em políticas públicas para esse grupo social. Parte-se da ideia de luta e conflito social, recorrendo-se às discussões de luta por reconhecimento de Axel Honneth, apontando os limites e possibilidades do uso dessa abordagem no contexto brasileiro em face da elevada desigualdade social. A investigação foi realizada a partir de um estudo de caso longitudinal, com recorte temporal de 1987 a 2010. Foram feitas entrevistas em profundidade, conversas espontâneas e observações. Como método de análise foi adotada a leitura de narrativas. A partir das múltiplas vozes presentes nas narrativas dos entrevistados, observa-se que a luta dos catadores da Asmare foi repleta de idas e vindas, contradições e conflitos. Nas narrativas dos catadores foram evidenciadas diferentes formas de desrespeitos e reconhecimento recusado, bem como expectativas morais de reconhecimento. Foram alcançadas reivindicações junto ao poder público local, como a construção de uma política de apoio ao trabalho desse grupo que, ao longo dos anos, foi passando por reconfigurações e mais recentemente por uma inflexão, que acirrou os conflitos entre poder público e Asmare.

Estudo de um compósito de matriz cerâmica com carga de recicláveis para o uso na construção civi

With a view to revitalizing public environments through criteria that include economy, tourism, aesthetics and respect for the environment, this paper proposes a model of kiosk manufactured with composite material blocks, to be employed as a public instrument. . The model consists of a structure composed of planned blocks and manufactured in cement-based composite, gypsum, ground and water, having the styrofoam inside filled with pet bottles of 500 ml dose. The social and environmental issue is the critical point of the work when it can, through the reuse of environmentally harmful materials such as polyethylene terephthalate PET, using such modules for the construction of various areas of Commerce, promoting the protection of the environment combined with the improvement of the quality of life of the population. The tourism factor, which is significant in the economy of the North, is also considered as the modulated kiosk has a visual aspect innovative and differentiated. The environmental issue is addressed by encouraging the reuse of PET material and EPS (polystyrene)

Viabilidade de utilização de um compósito de matriz cerâmica com cargas recicláveis na fabricação de equipamentos solares

Composite materials can be defined as materials formed from two or more constituents with different compositions, structures and properties, which are separated by an interface. The main objective in producing composites is to combine different materials to produce a single device with superior properties to the component unit. The present study used a composite consisting of plaster, cement, EPS, tire, PET and water to build prototype solar attempt to reduce the manufacturing cost of such equipment. It was built two box type solar cookers, a cooler to be cooled by solar energy, a solar dryer and a solar cooker concentration. For these prototypes were discussed the processes of construction and assembly, determination of thermal and mechanical properties, and raising the performance of such solar systems. Were also determined the proportions of the constituents of the composite materials according to specific performance of each prototype designed. This compound proved to be feasible for the manufacture of such equipment, low cost and easy manufacturing and assembly processes

Viabilidade técnica de uma rota não convencional para a produção de leite de cabra em pó em cooperativas do Rio Grande do Norte

Nowadays, Brazil has both the greatest goat herd and the greatest goat milk production of South America. The state of Rio Grande do Norte, located in northeast of Brazil, has an average year production of three thousand cubic meters of goat milk in natura. Part of this milk production is homemade and it comes from small farms, which unite in rural cooperatives created to encourage the production and implementation of industrial processes for preservation and processing of milk. Results presented by literature and obtained from preliminary essays in this thesis show that non conventional dryer of spouted bed with inert particles is able to produce powder milk from in natura milk (cattle or goat), with the same quality of spray dryer, however, operating at low cost. The method of drying in spouted bed consists of injecting milk emulsion on the bed of inert particles gushed by hot air. This emulsion covers the particles with a thin film, which dries and is reduced to powder during the circulation of inerts inside the bed. The powder is dragged by exhaustion air and separated in the cyclone. The friction among particles resulted from the particles circulation, encourages high taxes of shear in the thin film of emulsion, breaking the cohesive forces and making this process possible. Studying the drying process and the powder goat milk production in one unit of spouted bed with inert particles, seeing the development of a low cost technological route for powder milk production is the aim of this thesis. The powder milk produced by this route must attend the local demand of food industries which need an intermediate product to be used as a food ingredient (ice-cream, milk candy). In order to reach this aim, this thesis approaches the aspects related to physical, thermodynamics and physic-chemicals characteristics of goat milk, whose complete data are still inexistent in the literature. The properties of materials are of great importance to the project of any process which involves the operations of transportation of movement, heat and mass quantity, such as the dryers which operate in fluid dynamically active regime, like the spouted bed. It was obtained new data related to the goat milk properties in function of concentration of solids and temperature. It is also important to mention the study developed about the kinetic of solids retention in the bed of inert particles during the drying of goat milk. It was found more adequate processes conditions to the proposed technological route to be implemented in small and micro-industries, with simplifications in the system of milk injection as well as in the form of operation of the dryer. Important data were obtained for a posterior stage of this research which involves the v modeling, simulation, control and optimization of the process. The results obtained in this thesis, in relation to process performance as well as to the quality of produced powder milk validate the proposal of using the spouted bed dryer in the production of powder goat milk

As contribuições da associação de Catadores de Junqueirópolis/SP (ACAJUNQ) no processo de educação ambiental

Pós-graduação em Geografia - FCT

Da margem ao centro dos holofotes: o arcabouço legal dos/as catadores/as de material reiclável e reutilizável

Pós-graduação em Serviço Social - FCHS

Perfil da renda e do volume dos resíduos sólidos urbanos da associação de catadores de São Manuel - SP

The implementation of residue selective collection has brought to the city of Sao Manuel an incalculable benefit. It brought a better life for a group of adults and children that lives in a humanitarian condition of extreme poverty. These people live in an open-air dump, disputing the remains found in fifteen tons of garbage that are deposited at the site almost every day.The objective of this paper is to present thecollectors annual income profile and the volume of solid waste collected.To present these factors, the total and fractionated amount according to their material items, collected since the creation of the Association in February 2003 until December 2008, were considered., In addition,the social gains were enumerated. These factors were developed from a theoretical base for municipal solid waste involving environmental, social, and financial concepts. Based on these results it was found that the ACAPEL income value was above the average of other income indicators of the population analyzed, besides the social value enhance that the creation of the Association brought to the people who work there.

Gestão sustentável de resíduos sólidos em grandes eventos : Rio+20 e jogos olímpicos de Londres

Dissertação (mestrado)—Universidade de Brasília, Centro de Desenvolvimento Sustentável, 2015

Ecomateriais: desenvolvimento e aplicação de materiais porosos funcionais para proteção ambiental

Fundamental aspects of the conception and applications of ecomaterials, in particular porous materials in the perspective of green chemistry are discussed in this paper. General recommendations for description and classification of porous materials are reviewed briefly. By way of illustration, some case studies of materials design and applications in pollution detection and remediation are described. It is shown here how different materials developed by our groups, such as porous glasses, ecomaterials from biomass and anionic clays were programmed to perform specific functions. A discussion of the present and future of ecomaterials in green chemistry is presented along with important key goals.

Rugosidade e pigmentação superficial de materiais ionoméricos

The aim of this study was to compare two methods of surface roughness analysis, perfilometry and spectrophotometry, applied to the surface of ionomeric materials (Chelon Fil, Vitremer and Dyract), submitted to different surface finishing treatments. For the perfilometric analysis, sixty specimens of each material were made and randomly separated into three experimental groups. The average surface roughness (Ra, mm) was measured on each specimen by a surface perfilometer (Mitutoyo Surftest 211). The spectrophotometric analysis consisted in quantifying the dye impregnated in the samples. The dyes used were 0.5% fuchsin and 0.5% erythrosin. Data were submitted to variance analysis (ANOVA) and t-Student test at a 0.05 significance level. There was no linear correlation between average roughness and superficial deposition of dye. Perfilometric analysis revealed that 12- and 30-bladed carbide burs caused the roughest surface of Chelon Fil, followed by Sof-Lex discs and mylar band. There were no significant differences between the specimens submitted to finishing and polishing with Sof-Lex discs and the control group (mylar band) for Vitremer, nevertheless, the highest Ra values were obtained when 12- and 30-bladed burs were used. For Dyract, there was no significant difference between the three treatments. The mean values of superficial deposition of dye for Chelon Fil, Vitremer and Dyract were: 1.7261, 1.4759, 1.3318, respectively. There were no significant differences between the restorative materials when different finishing and polishing systems were used.

Influência de diferentes materiais de cobertura no conforto térmico de instalações para frangos de corte no oeste paulista

Este trabalho apresenta um estudo da influência de diferentes materiais de cobertura no conforto térmico de instalações destinadas à criação de frangos de corte. A pesquisa foi desenvolvida no Câmpus Experimental da UNESP de Dracena - SP. Quatro protótipos em escala real foram construídos, com área de 28 m² cada, cobertos com telha reciclada à base de embalagens longa vida, telha cerâmica, telha cerâmica pintada de branco e telha de fibrocimento. Os dados foram coletados durante o período de inverno de 2007, totalizando 90 dias. Com esses dados, foram calculados os índices de conforto térmico Carga Térmica Radiante (CTR) e a variável ambiental (Ta). Uma análise estatística por inferência e descritiva foi realizada com os valores do índice de conforto térmico e da variável ambiental. Com os resultados obtidos, é possível afirmar que a telha reciclada apresentou índices de conforto térmico semelhantes àqueles encontrados para as telhas cerâmicas. O protótipo coberto com telha de fibrocimento apresentou os maiores índices, e o coberto com telha cerâmica branca, os menores índices de conforto térmico. No entanto para o período de inverno e para os horários avaliados, todas as instalações apresentaram índices de conforto térmico fora da zona de termoneutralidade do frango de corte.