Tratamento orgânico de resíduos de rúmen bovino

The organic wastes need to be adequately managed, in order to avoid the environmental pollution and damage to the public health. So, this work aimed to study the composting process using two methods: manual and mechanized, for the treatment of bovine ruminal waste. This residue is generated in large proportions during the bovine slaughter process, and it can lead environmental degradation and contamination, or even damage to the public health, when not treated. For the initial adjustment of the composting parameters, it was incorporated the residue of coffee husks. The manual composting system was done by the manually aerated piles, while the mechanized composting system was done in a reactor coupled to a compressor that enabled the aeration of the system. The proportions used in both systems were: 90% bovine rumen (R) and 10% coffe husks (CC); 85% bovine rumen and 15% coffe husks; 80% bovine rumen and 20% coffe husks. The parameters determined during the monitoring of the composting process were: temperature, pH, moisture, organic matter, ash, organic carbon, Kjeldahl nitrogen and C/N ratio. The results obtained during the monitoring of the piles and reactors presented similar behavior, except for the parameters Kjeldahl nitrogen and C/N ratio. When compared to the “Instrução Normativa no 25 de 23/07/2009 do Ministério da Agricultura, Pecuária e Abastecimento”, the organic produced composts with the best results were: pile 2 (85% R; 15% CC) and reactors 1 (90% R; 10% CC) e 2 (85% R; 15% CC)

Diagnóstico dos resíduos de construção e demolição para elaboração e implantação da gestão integrada dos RCD no município de Guanambi – BA

Taking as starting the environmental, social and economic impact of construction and demolition waste in Brazilian cities were created legal mechanisms for management and administration, seeking to minimize the impacts to the maximum, since the irregular deposition can be characterized as environmental crime. CONAMA Resolution No. 307 of 2002 establishing the mandatory implementation of an Integrated Management System Construction Waste and Demolition, guiding the classification and designation of the waste generating agents, collection agents and transporters, and the areas of culling and disposal of waste. The technical partnership between the Ministry of Cities, the Environment Ministry and the Caixa Econômica Federal, coordinated by Pinto & Gonzales (2005) Management in the work and management of construction waste, proposed a guidance manual to guide the implementation of a System Integrated Management of Construction Waste in Municipalities. The municipality of Guanambi in the state of Bahia, in full economic rise, lacks a waste management of construction and demolition, since there has areas for the disposal of waste being proposed in this paper the diagnosis of waste generation in the municipality as part of the methodology proposed by the work of Pinto & Gonzales (2005).

Considerações gerais sobre os resíduos eletrônicos

As new technologies improve, people’s lives gain in comfort and accessibility. However, along with these technologies comes a growth in “soon to fall into disuse” product consume, either because they have reached the end of their life cycle, or because they were substituted by newer and more advanced models. These electronic wastes are still with no certain destination, and could be donated to welfare companies, but the majority is thrown in wide open dumping grounds or landfills, where they can contaminate water and soil with their toxic components. This work seeks to evaluate the e-waste concept, their impacts in the environment and human life, as well as the current national and international e-waste management and destination, finally reflecting on international decisions that would be appropriate for the Brazilian system.

Produção e aplicação de adubo orgânico, proveniente da compostagem de resíduos da FCT/UNESP

This work presents the objective of producing organic fertilizer from the waste generated at FCT/UNESP and its use in the growing sunflower. For this, there were collected wastes of pruning/weeding and organic waste from the canteen. It were made two types of treatments, one conventional and the other mechanized, using three mass ratios: ratio 1 (30% wastes of pruning/weeding (RP) + 70% organic waste (RC)), ratio 2 (50% RP + 50% RC) and ratio 3 (70% RP + 30% RC). The conventional system was done windrow with turning manual and the mechanized system was developed in reactors by injecting compressed air. The compounds produced were analyzed in terms of pH, organic matter, organic carbon, mineral residue, nitrogen, phosphorus and potassium, which could be compared to the values stipulated by the Instrução Normativa n° 25 de 23/07/2009 do Ministério da Agricultura, Pecuária e Abastecimento. The compounds produced were used on growing sunflowers in 14 different conditions for the systems manual and mechanized, totaling 26 treatments with the following proportions... (Complete abstract click electronic access below)

Compostagem dos Resíduos da FCT/UNESP de Presidente Prudente –SP

The present work aimed to study the composting process using two methods of treatment, conventional and mechanized for the treatment of pruning/weeding waste and organic waste generated in the canteens of the FCT/UNESP. For this work, it was quantified the generation of the waste However, of the tests with pure organic compound, which had the best result was T1 - 70% RPC / 30% ROC, again indicating the feasibility of applying this condition in scales at the campus. The conventional treatment by composting was carried out on manual aerated piles: 70% residue pruning/weeding (RPC) and 30% organic waste from the canteen (ROC); 50% RPC / 50% ROC, 30% RPC / 70% ROC. The mechanized system consisted of a reactor of 190 liters – 50% RPC / 50% ROC, with air injection from a compressor for 15 minutes daily. The parameters characterized and monitored were pH, organic matter, organic carbon, ash, nitrogen kjedahl and phosphorus. The temperature measurements were taken daily by a digital thermocouple (top, middle and base of the piles and reactor)... (Completo abstract click electronic access below)

Potencial de aproveitamento de agregados reciclados de resíduos da construção e demolição

CONAMA Resolution 307 / 02, in Article 4, states that the primary goal of those involved in the reuse process of construction and demolition waste is not the generation of such wastes, secondarily is the reduce, reuse, recycling and proper disposal of such material. The disposal problem of large volumes of waste generated coupled with the scarcity of natural resources and environmental degradation involved in the extraction process of such materials resulted in several studies, that after many analyzes proposed various forms of reuse and recycling . The NBR 15.116/04 provides requirements for the use of recycled aggregates in paving and concrete without structural function. This work aims to show the usage potential of recycled aggregates from waste generated in construction and demolition sampled Group AB Areias, Pindamonhangaba (SP) in order to meet the standards in Brazil, as well as the environmental contribution by reducing the use of raw materials extracted from nature. After stabilization and particle size analysis of the California Bearing Ratio and Proctor, obtained mixtures of recycled aggregates showed higher values submitted by the minimum standards related, with excellent potential for use in paving

Diagnóstico dos resíduos gerados nas oficinas mecânicas de veículos automotivos do município de São Carlos-SP

The mechanical garages do varied types to activities related to the reparation from vehicles such as change from Motor oil, change and cleaning from car pieces, motor rectification, among others. These activities generate different kinds of waste and wastewater that when disposed in an inappropriate way can pollute the environmentand cause risks to the public health. Despite the environmental issues that involves these enterprises, they aren´t object of environmental licensing and there are any rules that regularizes their activities with the goal of these possible environmental impacts mitigation. The environmental diagnosis proposed by the present work has as goal the knowledge of the possible environmental aspects and their effects in the environment, for establishing control measures and from that to generate subsidy for environmental normatization of the sector in the municipal level. Furthermore, it should also define practices as waste production reduction, separation of them at the generator source and convenient final disposal, as well as wastewater production reduction and treatment of them before its launching in the wastewater network. The environmental diagnosis was based on a survey realized in garages from the city of São Carlos – SP, in order to define the more important characteristics of this activity that are related to the environment and public health. From the obtained information from the survey and the interpretation of the data, subsidy for the municipal environment management of the mechanical garages were generated.

A problemática ambiental dos resíduos sólidos no Brasil

Esta pesquisa tem como objetivo levantar a literatura sobre economia do meio ambiente e suas linhas de pensamento, para comparar sua aplicabilidade em relação às políticas públicas relacionadas à gestão de resíduos sólidos. No primeiro capítulo são apresentadas as principais correntes da economia do meio ambiente. A seguir, no capitulo segundo, colocamos o Brasil no cenário da problemática ambiental, e então, dos resíduos sólidos, contemplando as legislações vigentes no Estado de São Paulo e no Brasil, além de introduzir o conceito do resíduo sólido. O capítulo final apresenta os resultados país por fontes especializadas nos últimos anos, e a tendência que as políticas públicas poderiam seguir para uma melhor gestão dos resíduos sólidos

Gestão de resíduos sólidos domiciliares orgânicos: práticas e técnicas para a destinação final na cidade de Rio Claro - SP

The present work is the analysis of the practices and techniques currently used in the final allocation given to organic household solid waste in the city of Rio Claro - SP. As the major part of Rio Claro’s household solid waste is formed by the organic fraction, as well as in the rest of the country, this research proposes a study on what is done with that portion of the waste, its treatment and where finally destined, based on the National Solid Waste Politic, recently approved in 2010. With the use of this organic part, for example: as animal feed supplement or compost embodiment for the purpose of producing organic fertilizer, enables the decrease of the percentage of the total destined to dumps and landfills. This total percentage has already been reduced after the popularization of the beneficial recycling programs in Brazil, which are still growing. As cities and the purchasing power of its individuals grow, there is also a consequent growth of waste production by society. The household whether domestic solid waste are lower than Industrial Solid ( RSI ) waste for the production in million tons ( Mton ) quantities , however, those residues are more visible on a daily basis - in cities and periphery as well, due to the inadequate management, - and also offer , as well as industrial and agricultural wastes , several types of harmful effects to the population when managed incorrectly. Therefore, the research aims to assist in the study of Solid Waste Management (MSW) for efficient Urban and Environmental Planning in a midsize city. Thus, this project aims to analyze in the city of Rio Claro, how the allocation of these materials is done and whether these practices denote effective improvement regarding the proper management of waste, in the same way that the recycling chain would allow this effect

Avaliação dos resíduos sólidos gerados no Restaurante Universitário da UNESP de Rio Claro: uma análise do potencial de compostagem

A consequence of population growth is the increased generation of solid waste, which requires environmentally and economically viable suitable disposal sites. The scarcity of such sites makes necessary to adopt non-generation measures, reduction, reuse , recycling and treatment of solid waste before final disposal of waste. This paper presents the quantification and qualification of organic waste generated in each sector of the University Restaurant (UR) , by proposing indicators of waste generation per meal (index of waste) . Then, from the characterization of the waste management practices adopted internally, evaluates the potential deployment of the composting process for organic waste, with signaling for opportunities to improve waste management. The diagnosis of waste generation was made based on data collected during the period of 10 days. The waste were classified into 3 groups (organic, recyclable and waste) in each sector of the restaurant ( pre preparation , kitchen and tray return) . The results reveal that 33 % of the waste generated in the UR currently has the potential to be composted in a suitable place on campus. Every meal served generat approximately 124g of waste, of which 35g are organic waste of the pre preparation sector, 49g are remnants of food in the tray’s return and 40g are other kinds of waste, including recyclable and non recyclable. You can still get a higher percentage of compostable if the trays pre-wash is not performed with detergent and water. To minimize the generation of waste trays can be replaced by plates and skimmers and ladles can be replaced by smaller ones. The food exposed in the counter but not consumed, can be distributed to students after the restaurant is closed so this material would not be disposed in the garbage

Monitoramento das águas subterrâneas do aterro de resíduos da construção civil e inertes, no bairro Jd. Wenzel, em Rio Claro-SP

This work is proposed to evaluate the potential risk of an inert landfill in the city of Rio Claro (SP), and also suggest a source for the contamination. The study was proposed because it is known that there were legal technicalities greetings to guarantee the quality of groundwater. Given the requirements of the Environmental Company of São Paulo (CETESB) were installed monitoring wells in the area; sampled to groundwater and its contamination was found. In addition, we analyzed the main characteristics of the area, the arrangement and characteristics of the waste, the local geology and the hydrogeological system, so that I could find the source of contaminants, and predict the direction of dispersion even in groundwater. At the end of the work presents conclusions, recommendations and proposals for mitigating action

Processos biotecnológicos para a detoxificação de resíduos contendo acetonitrila gerados no IB-UNESP

Não disponível

Produção e caracterização físico-mecânica do compósito cimento-madeira com variação granulométrica dos resíduos lignocelulósicos

The need to reduce environmental damage and add value to waste causes more and more new alternatives appear to unite these two points. One of the main ways to achieve this in timber industries and the use of waste for making panels. This work was aimed at studying the influence of particle size and density in Eucalyptus mechanical compressive strength of cement composite wood. For this study was performed production and physico-mechanical characterization of specimens, using portland cement, water and waste eucalyptus. The methodology consists of a statistical study of the results obtained by calculating the density and axial compression tests and a subsequent comparison of these results with other studies. The results showed that there are significant differences in density and compressive strength when using different particle sizes the particles of eucalyptus. In general, the smaller the particle size, the lower the compression strength and the greater the density when the samples are produced with the same trait

Análise das emissões de gases do efeito estufa na produção do milho através da fertilização por resíduos de biocombustível. Estudo de caso : Dedelow - Brandemburgo - Alemanha

The focus of this research study were gas exchange between soil and atmosphere of nitrous oxide (N2O) between different fertilization treatments Corn The research, conducted in the experimental field Dedelow - Brandenburg / Germany, analyzed three different fertilization treatments, aiming to quantify GHE emissions, to identify the influence of the residue of biogas in the release of these gases process in agricultural soils in search for a solution fertilization less harmful to the environment and the greenhouse effect , based on the comparison of three treatments: organic fertilization, mineral fertilization and no fertilization. It was found through the analysis of the measurements that the first was the one which issued N2O, showing that even though coming from the residue of biogas , when returned to the soil, it becomes harmful to the environment and global warming . The cultivation of energy crops can lower or raise the emissions of greenhouse gases, so it is necessary for further research on this question not only in Germany , where such research is in continuity, but also in Brazil, a pioneer in the introduction to his energy matrix of a biofuel produced from cane sugar

Avaliação da auto-suficiência energética de reatores anaeróbicos aplicados ao tratamento de resíduos de uma cervejaria em escala piloto

This project aimed to analyze the feasibility of the methane yield associated to the anaerobic digestion of brewery residues, checking whether the energetic balance of the system is favorable. The methane yield efficiency was calculated for the parameters of two papers that treated solids with a particle-size <1mm. Theses solids are not degraded in conventional treatment systems. Calculations were based in the reactions of anaerobic degradation of the macromolecules that compose brewery residues, considering the theoretical production and the effective production of methane. The results were 50.44% and 52.86%. Regarding to the energy balance of the anaerobic treatment, we noted the high influence of the selection and operating regime of electrical equipment over the potential energy. The best situation, in which the energetic self-sufficiency was reached, was observed when using the mixer under an intermittent regime (1min/h), without employing the heating recirculator, for the maximum organic loading of 4.0 gVS/L.day (days 248-258). In this case, the system would generate an amount of energy equal to 0.0356 kWh/day, able to overcome the energy required by the equipment in about 6.5 times. Moreover, we also noted the interference of the application of different solid loadings in the reactors, once the application of the higher organic load generated 5 times more energy than the application of the smaller one