Caracterização de argilas usadas para produção de cerâmica vermelha e estudo das alterações nas suas propriedades pela adição de resíduos

Neste trabalho são apresentados os resultados de caracterização das principais argilas usadas pela indústria cerâmica vermelha regional e, também, de alguns resíduos sólidos produzidos na região de Presidente Prudente - SP. Os resultados da incorporação destes resíduos em massas cerâmicas são avaliados através do estudo de suas propriedades tecnológicas. Para a caracterização dos materiais foram utilizadas as seguintes técnicas: análise textural (concentração das frações areia, silte e argila), difratometria de raios X e análise térmica. As propriedades tecnológicas de corpos de prova cerâmicos foram avaliadas através dos seguintes parâmetros: retração linear (RL), perda de massa ao fogo (PF), massa específica aparente (MEA), porosidade aparente (PA), absorção de água (AA) e resistência mecânica à flexão (RMF). Corpos de prova, com diferentes concentrações de resíduos, foram prensados (prensa uniaxial manual) e queimados em temperaturas que variaram de 800 a 1200 oC, usando um forno tipo mufla com controle de temperatura. As argilas sedimentares foram coletadas nas margens do rio Paraná e em áreas de várzea, próximas as cerâmicas. As amostras estudadas, coletadas nos depósitos das cerâmicas, são usadas para produção de tijolos maciços, blocos furados e telhas. Quatro tipos diferentes de resíduos foram estudados: (1) lodo de estação de tratamento de água ETA, (2) torta de filtro de indústria de re-refino de óleo lubrificante, (3) pó de vidro (soda-cal) de garrafa tipo long neck descartável, e (4) cinza de bagaço de cana. Estes resíduos foram incorporados em massas cerâmicas coletadas nas indústrias... (Resumo completo, clicar acesso eletrônico abaixo)

A gestão de resíduos sólidos domiciliares: coleta seletiva e reciclagem - a experiência de Rio Claro (SP)

O estudo objetivou pesquisar a aplicabilidade de métodos alternativos para amenizar o problema da disposição dos resíduos sólidos urbanos. Especificamente nesse trabalho os objetivos foram direcionados no sentido de desenvolver esforços para viabilizar a reciclagem e o reaproveitamento de materiais, medidas essas, que aumentarão a vida útil dos aterros sanitários. Além disso, procuramos fazer um trabalho de Educação Ambiental para a população envolvida, em uma tentativa de incentivar uma mudança de hábitos. Para tanto, foi selecionado um bairro da cidade de Rio Claro (SP), como um projeto-piloto, onde foram observados os obstáculos e os procedimentos acertados, para uma aplicação em futuros projetos.

Análise faciológica e estratigráfica das formações Taciba (parte superior) e Rio Bonito (membro Triunfo) em poços testemunhados da área de Monte Alegre (PR)

The Triunfo Member, from Rio Bonito Formation, is a potential reservoir for hydrocarbons and water, and contains coal deposits in the northern state of Paraná. On the eastern edge of the Paraná Basin, the Triunfo Member has two depocenters in Santa Catarina and offlap to the North of Paraná; here in two adjacent areas characterized his final lapout. These areas have a number of wells core/logged with the initials MA and NF, Monte Alegre and Figueira North, which were drilled by the Companhia de Pesquisa e Recursos Minerais (CPRM), in order to research for coal in the Rio Bonito Formation. In this study, three wells in the MA area, and they were MA-4, MA-6 and MA-7 was subjected to vertical facies analysis (1D), from the description of wells and processing of data, so that later it was possible to chronocorrelate thereof, together with MA-5 well, through cycles facies (2D). This is a thesis which has never been developed in these wells mentioned above, it was possible to observe the development of part of the Member Taciba (top) and the Member Triunfo as a whole, can be determined three cycles facies to the latter, as well as their depositional environments. Finally, the chronocorrelate showed that there is a tabular architecture between the wells studied, this occurred because of subsidence uniform

Contaminação das águas subterrâneas por resíduos de postos de combustíveis: uma abordagem no município de Rio Claro

The contamination of underground waters is a subject of great importance, since a lot of people use this kind of source for public supply. This paperwork manages with how gas stations can contaminate these waters and what are some remediation techniques, used nowadays to solve this problem. The contamination caused by the gas stations can have its origin in the underground storage tanks when they suffer corrosion and show leaking problems. It’s a topic of great relevance, because the hydrocarbons derivated from petroleum present in the fuels can stay for a long time in the environment. Besides that, an analyses of the risk of contamination by gas stations in the city of Rio Claro was made based on three parameters: density of the gas stations, depth of the underground water and hydraulic conductivity. To achieve such goal, maps were elaborated considering those parameters individually and considering the three of them together. Analyzing those maps, it was concluded see that the spots that represent the biggest risks of contamination in Rio Claro are located southeast and center-west.

Aproveitamento de resíduos de laminação da madeira para a produção de painel estrutural

Products derived from wood or engineered products are becoming interesting alternatives to the replacement of solid wood in various applications, from structural components to the furniture industry and packaging. Among these products, there are panels built by strands, particles and fibers, each one having their particular characteristics and potential of use. Since the different types of panels are produced, waste generation is part of the process, and that more technological it is, it still generates losses of raw materials. Based on the need for rational use of raw materials and using almost full of industrially processed wood, It arises the proposal of this work, which seeks to use waste from the lamination, like pieces of strands, broken strands, strands rough, cracked strands to produce panels with structural characteristics of the OSL panel (Oriented Strand Lumber), LSL (Laminated Strand Lumber) and OSB (Oriented Strand Lumber). Besides the use of waste, this paper seeks an alternative to the use of the adhesive, because the industry uses formaldehyde-based adhesives, which over the press, they emit large amounts of formaldehyde, which is very aggressive to humans and environment. The panels made with polyurethane resin based on castor oil and hot-pressed were characterized by physical and mechanical tests according to specifications of European Standard (EN). High values of tensile strength, elastic modulus and density were found in the results of tests. Adding to stable values of swelling and moisture content, the panel studied adds attractive features to the panel market, especially in the civil construction

Gerenciamento dos resíduos de serviços de saúde da Unidade de Terapia Intensiva do Pronto Socorro do Hospital das Clínicas da Faculdade de Medicina de Botucatu – UNESP

Health care waste (HCW) is the type of waste that results from activities performed in health care services during care provision to humans or animals. Presently, according to RDC 306/04, issued in 2004 by Anvisa, and Resolution no. 358/05, by CONAMA, waste groups have the following classification: Group A (biological waste), Group B (chemical waste), Group C (waste containing radionucleotides), Group D (common waste) and Group E (piercing and cutting waste). In Brazil, 149 tons of wastes are collected every day, and HCW corresponds to approximately 1% to 3 % of that total. An efficient way to adequately manage HCW is through the Health Care Waste Management Plan (HCWMP), and it is possible to reduce the risk posed by certain materials in addition to ensuring disposal in an ecologically correct and economical fashion. According to the Pan-American Health Organization (PAHO), the management process enables health care establishments to adequately manage waste. Hence, there is greater control and reduction in the health risks caused by infectious or special waste, in addition to facilitated recycling, treatment, storage, transport and final disposal of solid hospital waste in an environmentally safe fashion. To evaluate the management of HCW of Groups A and D from the Intensive Care Unit of the University Emergency Hospital - FMB - UNESP in the city of Botucatu according to the guidelines presently in force. The waste flow was followed up, and during four random days in the month of September 2011, waste was quantified by estimating daily and monthly values, according to its classification. : In 2011, the University hospital has produced an average of 57,676.8 kg/month of biological and common waste. By adding Groups A and D, during the four days, approximately 209.8 Kg of waste (202.2 Kg of Group A and 7.6 Kg of Group D) were produced in the establishment under study, which... (Complete abstract click electronic access below)

Circuito espacial produtivo e círculos de cooperação dos café Fairtrade: análise da Associação dos Agricultores familiares do Córrego D'Antas (ASSODANTAS), Poços de Caldas/MG

The aim of this research project is to analyze the spatial productive circuit and circles of cooperation of Fairtrade coffee, taking as a case of study the Associação dos Agricultores Familiares do Córrego D'antas (ASSODANTAS), Poços de Caldas - MG. The main purpose is to analyze material flows (grains, supplies, etc.) established between geographically separated stages of production (production, exchange, distribution and consumption) and the relationships between the agents in order to analyze the organization and regulation of production of Fairtrade coffee. It is understood as the insertion of the Fairtrade ASSODANTAS to permit the creation of new production lines, adding value and providing greater identity and autonomy to their small farms, when compared with traditional coffee trade commodity

Potencial de reciclagem dos resíduos sólidos urbanos do Município de Salto-SP

O excessivo consumo de recursos naturais renováveis e não renováveis combinado com a ineficiência e o desperdício de seu uso geram uma problemática muito atual nos centros urbanos: a grande produção de resíduos sólidos urbanos (RSU) e sua destinação inadequada. O presente trabalho caracterizou o RSU da cidade de Salto – SP a fim de quantificar os materiais recicláveis presentes nestes sólidos, bem como mapear sua origem e o perfil social de sua fonte geradora. Foram utilizadas quinze (15) classes de recicláveis, além do lixo orgânico e rejeitos. Dentre as classes estão: latas de aço; sucatas ferrosas; papel misto; papelão ondulado; embalagens longa vida; polietileno de alta densindade – PEAD; polipropileno – PP; poliestireno (PS); PET óleo; PET refrigerante; vidro; outros plásticos – PVC, materiais compostos de mais de um tipo de plástico e PS expandido; aparas plásticas; latinhas de alumínio e outros alumínios,. Os resultados apontam para uma grande geração de materias recicláveis no RSU em bairros de maior poder aquisitivo. O porcentual total de recicláveis na cidade foi de 38,38%

Remoção de cromo de resíduos de curtumes por argilitos da formação Corumbataí - SP

The tanning wastes are characterized to be significant sources of pollution in the hydrosphere when non adjusted or disposed adequated form. That happens because this industry type uses the chromium to tan hides, and this element is present in discharges concentrations in final wastes, characterizing this waste type as dangerous, according to the Associação Brasileira de Normas Técnicas, através da Norma Brasileira 10.004 de 2004. Due to this, the research proposes a form to reduction chromium of the tanning wastes through the process of adsorption. For that were used mining-wastes of Corumbataí Formation clays, material commonly used in the production of ceramic products in Rio Claro (SP). They were accomplished laboratory essays that involved the preparation of different clays pulps and subsequent mixture of these with the tanning wastes, maintaining them under different mixing times and adsorption contacts. After the separation of the mixtures, the leached were chemically analyzed and it was seen the efficiency of chromium reduction and your relationship with the variation of different times of contact clays/wastes and different grain sizes used in the pulps preparation.

Análise teórica de caldeiras de incineração de resíduos sólidos municipais

The discussion about possibility of deployment of MSW incineration boilers to generate electricity in Brazil is the major topic of this paper. In this article are showed some advantages and disadvantages of this technology, as well as a methodology for the estimate of area for the main equipments of a steam generator for a boiler incineration

Diagnóstico da gestão e do gerenciamento dos resíduos eletroeletrônicos gerados no campus da Faculdade de Engenharia de Guaratinguetá/Unesp

Currently, in Brazil, the quantity and quality of new types of wastes, discarded without criteria in urban areas, has been responsible for considerable impacts on public health and the environment. According to a report prepared by the Institute of Applied Economic Research (IPEA), the country loses about U.S. $ 8 billion annually, due lack of waste recycling, which go directly into landfills or dumps. Among these solid wastes are waste electrical and electronic equipment (WEEE), whose characteristics are complex, by having in its composition substances of high value-added and other health hazards which require different treatment of household waste. Aiming to fill the gap in Brazilian environmental legislation, on 02/08/2010, was sanctioned the National Policy Solid Waste (Law No. 12,305), already regulated on 23/12/2010 (Decree No 7404), whose based on the following principles:reduction of waste generation and toxicity of shared responsibility, proper planning management, social inclusion of waste pickers and sustainable production and consumption. Given the above, this work presented here, aims generally present a diagnosis of the current situation of electronic waste generated in the Faculty of Engineering, Campus Guaratinguetá, FEG / UNESP, to provide data for management and management of these waste, based on sustainability, the economic losses and minimizing environmental impacts and public health related to the flow and the improper disposal of these wastes

Fluxo institucional de resíduos de equipamentos elétricos e eletrônicos e identificação de seus potenciais impactos ambientais e na saúde

A preocupação ambiental em relação aos resíduos de equipamentos elétricos e eletrônicos (REEE) vem crescendo muito nos últimos anos devido à presença de substâncias perigosas que podem causar danos ao ambiente e à saúde. O trabalho teve por objetivo investigar o destino de REEE gerados no Campus Quadrilátero da Saúde/Direito (CQS/D) da Universidade de São Paulo (Faculdade de Medicina, Faculdade de Saúde Pública, Escola de Enfermagem, Instituto de Medicina Tropical e Faculdade de Direito), a partir do momento em que os mesmos deixam as dependências da Instituição e identificar potenciais riscos à saúde e ao ambiente, decorrentes das atuais ações de gerenciamento dos REEE nas unidades estudadas. A pesquisa desenvolveu-se em 3 etapas: a) pesquisa bibliográfica e documental; b) visitas às unidades que compõem o CQS/D, e identificação de cinco intituições filantrópicas como principais destinos; c) visitas aos locais identificados para investigar as atividades desenvolvidas para a recuperação de equipamentos, componentes ou materiais recicláveis, com base em um formulário desenvolvido. Adicionalmente, foram realizadas visitas a outros quatro locais de destino de REEE. Foi identificado que as etapas realizadas nas instituições são: recebimento, teste, conserto e desmontagem manual e que o destino dos REEE pode ser considerado problemático, já que os rejeitos acabam sendo descartados como resíduo comum, podendo causar danos ao ambiente e à saúde. Além disso há riscos ocupacionais, pois os trabalhadores, além de não utilizarem equipamentos de proteção individual necessários, nem sempre recebem capacitação para exercer suas funções

Aplicação de resíduos de construção e demolição em estruturas de pavimento

The objective of this work was collect information of articles published previously and carry out a study about them, including contents and interesting stuff that bring growth regarding the construction residues utilization and demolition (RCD), that today provides many environmental impacts. The need of utilization of the RCD in Brazil and in the world earned bigger attention world speaking, therefore the industry of the civil construction is had as one of the biggest present residues output springs. For it present a point that can be applied the RCD, is discussed in that work the kinds and structures of floors, where are presented the layers and, finally, a short argument about the possible and economic feasabilities job of the residues recycled in some layers of the structure of floor

Subsídios para o gerenciamento de resíduos de serviços de saúde em municípios de médio porte: estudo de caso de Araraquara - SP

The Health Care Wastes (HCW) present serious risks to health and to the environment, if incorrectly managed, because in addition to the presence of pathogenic agents, the may pollute the soil and the water. Thus, a study was performed aiming at diagnosing the HCW management in Araraquara (SP), identifying the difficulties of the agents (municipal gestors and managers of institutions which generate this wastes) in implanting the HCW management Plan (HCWMP) proposed by ANVISA, in order to subside the HCWMP implantation. The methodology was based on question applications in health centers selected to be the samples, and on quantitative data related to the phases of Treatment and Final Disposal, provided by DAAE. As a result, it was observed that a great part of the interviewed centers managed these wastes according to norm RDC no 306/ 2004 of ANVISA. However, only 24% of the interviewed centers knew about this norm, and only 22% of them had the HCWMP. The difficulties in managing the HCW concentrated in the correct segregation of theses wastes in the generation source. The large number of people involved in this phase suggests the causes of the difficulties.

Os impactos da política nacional de resíduos sólidos no setor de eletrônicos

A Revolução Tecnológica vem colocando no mercado um número cada vez maior de equipamentos eletrônicos, enquanto a absorção dos impactos pelo ecossistema se torna cada vez mais difícil. A Política Nacional de Resíduos Sólidos reúne o conjunto de princípios, diretrizes, metas e ações para o gerenciamento ambientalmente adequado dos resíduos. Comparando o cenário brasileiro com medidas de outros países, a proposta é analisar os impactos econômicos e ambientais da nova lei sobre a indústria de produtos eletroeletrônicos