Navegando por Orientadores "FENZL, Norbert"

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Acesso aberto (Open Access)
A aquaponia: desafios e oportunidades para a produção de peixes e hortaliças no estado do Pará – Estudo de caso: projetos de aquaponia no município de Bragança-Pará
(Universidade Federal do Pará, 2019-02-25) ARAÚJO, Cátia Sílvia Pereira de; MORAES, Sérgio Cardoso de; http://lattes.cnpq.br/4568311568729454; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
The present research about existing experiences of Aquaponics Systems in the State of Pará, municipality of Bragança. Among the main reasons for conducting the study was aim alternative paths to aquaculture activity in Brazil to meet the growing demand for healthy foods, mitigating the indiscriminate use of water resources and the lack of treatment and dumping inadequate effluent. In this sense, the aquaponic presents itself as an alternative to the integrated production of aquatic organisms (fish, crustaceans and algae) and vegetables with the benefit to save natural resources. The research aims General Aquaponics analysis, in the social and environmental context, from the studies and experiences that exist worldwide, national, as well as in the immediate region of Bragança, Pará State, with the purpose of drafting a guide for socialization and dissemination of aquapônica technology. Based on studies of the main bibliographic references on the aquaponic and the most important experiences of Aquaponics systems in the municipality of Bragança were analyzed by checking the theoretical and practical insights of those involved, and the potential and limitations of productive activity. For the preparation of the guide used the data provided in the bibliography, as well as those purchased on the spot. The results showed a bibliographic shortage issue in Brazil, mainly in respect of the economic viability of the activity, demonstrating clearly the necessity of deepening in the studies. The research showed that there is a strong tendency for membership of the local farmers to the aquapônico system of production, largely due to increasing income generation and low environmental impacts of this type of production.
Acesso aberto (Open Access)
Avaliação ambiental dos recursos hídricos, solos e sedimentos na área de abrangência do depósito de resíduos sólidos do Aurá - Belém-PA
(Universidade Federal do Pará, 2002-03-27) PIRATOBA MORALES, Gundisalvo; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
With 1.754.099 inhabitants, the municipality of Belém produces roughly 1,200 tons per day of all kinds of waste, which are deposited in a landfill known as Lixão do Aurá, bordering the municipality of Ananindeua. During the past 11 years, this area has been accumulating approximately three million and two-hundred thousand tons of solid waste, transforming that place into a permanent local source of anthropogenic pollution, altering environmental conditions and resources around the whole area surrounding it. A Vertical Electrical Resistivity Sounding (VERS) procedure, conducted in the area before it was transformed into the landfill (1991), compared with the measures taken eight years later (1998), show that the land resistance has considerably dropped, with values in some cases — 109 times smaller than the original ones, thus indicating that the layers have been affected by the leach from waste decay. Fifteen profiles were conducted in the area, using the electrical imaging system, allowing us to confirm the (VERS) results, with evidences that the underground water has been affected by the infiltration and by the leachate vertical and horizontal movements. The hydro geological characteristics in the area show that the local predominant type of aquifer is of the free kind, locally confined, with hydraulic gradient of approximately 0.695%, effective porosity of 28%, permeability coefficient ranging from 1.1 x 10-3 to 0.9 x 10-4 cm/s, and underground flows running north/south towards the Guamá River, at approximately 14.79 m/year. A multivariate statistical analysis has shown that superficial water samples, collected simultaneously at three control points, during one tide cycle, regardless of the season, portray totaily different behaviors, indicating that superficial water resources are being affected by the superficial movement of leachate. With the concentration value figures for each of the leachate parameters (pH, conductivity, alkalinity, ammonia, total organic carbon, chloride, sodium, potassium, calcium, and magnesia), plus the flow of the Aurá River at the control point near the Guamá River, it is possible to estimate the quantity of pollutants that the solid waste landfill sends into the water system. During one tide cycle, in the dry season, the solid waste landfill deposits approximately 13,115 kg of chloride, 417 kg of ammonia, and 129,767 kg of salts in the local water system. For the underground waters, the multivariate statistics showed that the samples collected In the monitoring wells in the area show significant differences, indicating that the wells located downstream have been affected by the leachate. The presence of sand layers right in the area where solid waste is deposited allows for the vertical and horizontal movement of the different pollutants originated by the leachate. The heavy metais anaiyses, conducted under the sequential extraction methodology, showed percentages in the geochemical phases potentially bio-available in the studied soil and sediment samples. In the soil samples, the potentially bio-available fraction (replace, reduce, and organic geochemistry phases) contained an average of 32% of the total Cadmium (Cd), 11.8% of the total Chromium (Cr), 23% of the total Copper (Cu), 12.32% of the total Nickel (Ni), 43.1% of the total Lead (Pb), and 31.01% of the total Zinc. The potentially bio-available phases percentage in the sediments of the area was greater than the ones found in the soil samples. In these sediments, the quantity of heavy metais in the potentially bio-available fraction, shown higher values during the dry season than during the rainy season; for instance, 33% of the total Cd measured during the rainy season increased to 37% in the dry season; Pb increased from 61 to 70%; Zn, from 51 to 54%, among others. The metais analyzed by total attack in the soil samples, compared with the sandstone backgrounds, indicate that the Fe (3.1%), Cu (18.5 ppm), Ni (10.1 ppm), Pb (69.5 ppm), Cr (76 ppm), and Cd (>1 ppm) are above normal standards. In the case of sediment samples, the EPA background values (total concentration) would be moderately polluted by Cr (average 64.6 ppm) and heavily polluted by Fe (3.8%) and Mn (600 ppm). These results show that the sediments were not polluted by Pb and Zn. Considering the potentially bio-available phase and using the tool provided by a Geographic Information System (GIS), we can say that, during the rainy season, the sediment samples were not polluted by Cr (potentially bio-available fraction smaller than 20% of the total) were highly polluted by Pb and Zn (PBD higher than 50%), and moderately polluted by Cu, Ni, and Cd (PBD between 20 and 50%).
Acesso aberto (Open Access)
Capacitação de agricultores familiares para a produção de adubo orgânico e defensivos naturais na comunidade de Camurituba-Beira, no município de Abaetetuba – PA
(Universidade Federal do Pará, 2019-11-07) GARCIA, Waldilene do Carmo; SIMÕES, Aquiles Vasconcelos; http://lattes.cnpq.br/0471255070027912; https://orcid.org/0000-0003-2194-6594; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
The present work, carried out with a group of small farmers of the community of Camurituba- Beira, in the municipality of Abaetetuba - PA, aims to verify the economic viability of the production of organic fertilizer in quantity and quality adequate to increase and diversify the agricultural production, aiming local economic development. As a methodological procedure, interviews were, initially, made with the farmers participating in the project, to determine the characteristics of the productive areas and the main difficulties faced to ensure economic survival. In the second stage three theoretical and practical workshops were carried out to produce three types of fertilizer with different organic residues that are tested in the different crops, to verify the quality and quantity of fertilizer needed to increase their productivity. After tests of the different types of fertilizer, a cost-benefit balance is carried out and an agroecological data sheet is constructed in order to show step-by-step the procedures and techniques of organic fertilizer production to encourage small farmers to adopt these techniques to increase the productivity of their crops. At the farmers' request, a last workshop, on the possibilities of using not only organic fertilizer but also natural pesticides to verify the possibility of gradually migrating to agricultural production that can be considered organic has been realized. The workshop was of interest to several farmers who expressed their intention to try step by step to produce organic products and to test the economic viability.
Acesso aberto (Open Access)
Caracterização hidrogeológica na área do depósito de lixo do Aurá - Município de Ananindeua-PA
(Universidade Federal do Pará, 2000-11-23) MENEZES, Lúcio Araújo; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Acesso aberto (Open Access)
Cenários de uso da terra nas mesobacias hidrográficas dos igarapés Timboteua e Buiuna, Pará
(Universidade Federal do Pará, 2011-08-19) NASCIMENTO, Nathália Cristina Costa do; BÖRNER, Jan-Christoph; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
The northeastern Pará is among the first regions of the Amazon receiving projects for induction occupation. Their forms of land use intensely focused on agricultural production triggered in the course of time a distortion of the natural landscape, natural resources and commitment to change in natural processes. Currently, the region is considered the most degraded landscape of the Amazon may be an example for areas frontier agricultural. Thus, this work focused on two river basins located between the towns of Igarapé-Açu and Marapanim in the northeastern region of the State of Pará, with the aim of understanding the dynamics of existing land uses, as well as its future trends, emphasizing their likely consequences on natural resources. The study adopted remote sensing techniques to obtain information about the dynamics of land use based on Landsat-TM image for the years 1984, 1994, 1999, 2004 and 2008. From the resulting use of dynamics, modeling tools were applied to generate future scenarios of land use, were also analyzed in terms of opportunity cost in some agricultural crops in order to discuss probable alternatives to existing forms of use. The results present the scenarios generated for the year 2020 for the two river basins studied; focuses on the impacts that may arise from the different scenarios generated and also highlight the need for projects that take into account local economic and social activities so that production and conservation can be complementary and not opposing, which can be built with technical and scientific support and political will.
Acesso aberto (Open Access)
Contaminação no lago Xolotlán causada pelos despejos vertidos pela área metropolitana da cidade de Manágua, Nicarágua
(Universidade Federal do Pará, 1995-05-25) ALBUQUERQUE ESPINOZA, Noemi Marlene; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Lake Xolotlán, the smaller of the two large lakes that occupy the Nicaraguan Depression, has been polluted by the metropolitan area of the city of Managuá since 1928, when it began to be used as a receiving body for the city's sewage. It currently also receives wastewater from the main industries in Nicaragua (located in Managua); sediments, garbage, high content of nutrients and organic pollutants from the drainage basin and the water that percolates from the main dump in the city of Managua (Lixão Acahualinca). To determine the levels of contamination by chromium, copper, arsenic, cadmium, mercury and lead on the southern coast of Lake Xolotlán, two sampling campaigns were carried out in six profiles with a north direction, starting from the discharge points of three sanitary sewage collectors, an industrial wastewater effluent, a rainwater drainage channel and in front of a "sanitary" landfill. In the first campaign, sampling was carried out up to a distance of 1000 meters from the lake shore and in the second, up to 500 meters. Water and sediment samples were collected for the analysis of trace elements and water samples for the determination of physical and physical-chemical variables. A third sampling campaign was carried out on two profiles to determine the concentrations of ƩDDT and toxaphene in sediments from Lake Xolotlán. For the determination of trace elements, the atomic absorption spectrometry method was used. ƩDDT and toxaphene were determined by the gas chromatography method. In the analysis of physical and physical-chemical variables, descriptive methods by APHA (1992) were used. The concentrations of chromium, copper, arsenic and cadmium in water were lower than the limits established by the National Council for the Environment (CONAMA) of Brazil in 1987 for brackish water intended for primary contact recreation, the protection of aquatic communities and the creation of species. intended for human consumption. Lead was exactly at the limit established by CONAMA for this pollutant (10ppb) at the point of discharge of the influent sampled from industrial wastewater in the first sampling. Mercury concentrations in water were high throughout the wastewater effluent profile, ranging from 0.6 to 0.1 ppb in both samples. In sediments from the coast of Lake Xolotlán, chromium was found at an average concentration of 15.1 µg/g and its distribution in most profiles indicates contamination by point sources, similarly to what occurs with copper (57 - 28 µg/g) and arsenic (1.3 - 11.2 µg/g). Cadmium contamination (0.7 - 4.7 µg/g) is a product of volcanic activity. Sediments sampled at the point of discharge of the sampled wastewater show a strong mercury contamination (57.6 µg/g), which decreases with distance. In turn, lead contamination (average concentration of 36.8 µg/g) is widespread throughout the study area and, with the exception of one profile, its spatial distribution indicates contamination by non-point sources. Toxaphene was only detected at the industrial wastewater discharge point, but the concentration was high (10 ppm). The distribution of ƩDDT suggests contamination by an unidentified point source. The results of the analysis of the physicochemical variables demonstrate that the volcanic activity is contributing with high values of Ph, solids, boron, fluorides and higher ion concentrations. The significant decrease in the concentration of nutrients and the chemical and biochemical oxygen demands, with the distance from the point contamination sources, reveal that Lake Xolotlán has a high stabilization capacity.
Acesso aberto (Open Access)
Desafios e oportunidades para a gestão integrada dos recursos hídricos da bacia do rio Amazonas
(Universidade Federal do Pará, 2011-09-20) MIGIYAMA, Ayamy da Costa; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Acesso aberto (Open Access)
Desenvolvimento de um programa de ações estratégicas para a gestão integrada dos recursos hídricos da bacia do rio Marapanim – Pará
(Universidade Federal do Pará, 2019-04-29) SILVA, Ligia Denyse Assunção da; MENDES, Ronaldo Lopes Rodrigues; http://lattes.cnpq.br/3384080521072847; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
The present work analyzes the water resources management process of the Marapanim river basin, contextualizing the political, legal and conceptual framework of integrated management and the participation of society in national and state water resources policies (Law nº 9.433 / 1997 and Law No. 6,381 / 2001). With the guiding question: what are the main and necessary strategic actions to support Integrated Water Resources Management (IWRM) in the Marapanim River basin? The main objective of the research was to identify the root causes of 04 main problems (governance, water contamination, deforestation and change in land use) that hinder the process of management and conservation of natural resources in the Marapanim River basin, proposing the development of a Strategic Action Program (PAE). The research results were obtained through interviews with actors who relate to the studied theme, who identify the main problems affecting the basin and outline strategies to face them. The PAE is a guiding instrument and is based on surveying the opinions and proposals of the different actors involved in the water resource management process, which identify the main problems affecting the Marapanim basin. The PAE gathers the economic, social and environmental characteristics of the basin and establishes strategies and priorities for actions that encourage scientific research, the strengthening and promotion of agreements and regulations that contribute to the sustainable development and well-being of the local population. The construction of the PAE in the Marapanim basin had as main reference the work developed by the Amazonian countries, members of the Amazon Cooperation Treaty Organization (ACTO) who developed a PAE for the Amazon basin, through the Global Environment Facility Project (GEF) Amazonas (2006 to 2016). It is concluded that there are still many challenges to implement an efficient management of the basin; the lack of state and municipal environmental management investments and initiatives in actions aimed at professional training and environmental education hinder the efficient management of water resources in the region.
Acesso aberto (Open Access)
Diagnóstico da contaminação ambiental gerada pela atividade minerária sobre os rios Sucio, Nico e Sinecapa – Nicarágua.
(Universidade Federal do Pará, 1995-05-19) SILVA VELÁSQUEZ, Gerardo Alfonso; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Acesso aberto (Open Access)
Diagnóstico de descarte irregular de materiais de pós-consumo e suas implicações socioambientais em situações de alagamentos na cidade de Belém-PA: um estudo de caso do bairro do Guamá
(Universidade Federal do Pará, 2024-05-10) CRUZ, Newton Carlos Amoras; FARIAS, André Luís Assunção de; http://lattes.cnpq.br/5310171409459863; https://orcid.org/0000-0002-0982-4212; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186; https://orcid.org/0000-0002-6548-2974
This research is the result of an effort to understand the dynamics of irregular disposal of waste and post-consumer materials related to the occurrence of floods, flooding and flooding in the Guamá neighborhood in Belém-PA. In addition to demonstrating how this irregular disposal occurs, the aim is to demonstrate that human actions combined with other factors can favor or enhance the formation of an environment conducive to the occurrence of extreme events. It is also intended to propose alternative structural and non-structural solutions with the aim of reducing negative impacts on the socioeconomically vulnerable population. Therefore, this work is being developed from the perspective of exploratory and qualitative research, delimited by a bibliographical procedure study, which aims to search for relevant publications to understand and analyze the research problem and which served as inspiration for the various stages of development. this one. We chose the case study, as it provides the investigation of a succession of events that occur in a peculiar way with this object of study.In this work, there was no intervention on the environment under study, restricting itself only to the observation of urban and environmental characteristics. Although the research is ongoing, it is already possible to verify that the precariousness of the material collection service, the culture of disposal permeated in the population in general and the degrading conditions of the drainage system, in this specific case, speaking of the situations of manholes, can be understood as factors that contribute to the incidence of floods, flooding and flooding in the neighborhood.
Acesso aberto (Open Access)
Dinâmica da distribuição dos poluentes metálicos e orgânicos nos sedimentos de fundo dos canais de drenagem de Belém, Pa
(Universidade Federal do Pará, 1995-10-17) NASCIMENTO, Fernanda Souza do; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Acesso aberto (Open Access)
Distribuição de metais pesados e hidrocarbonetos poliaromáticos em sedimentos de fundo dos rios Magdalena e Bogotá (Colômbia).
(Universidade Federal do Pará, 1997-09-08) PIRATOBA MORALES, Gundisalvo; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Acesso aberto (Open Access)
Estudo da salinização no Estuário do Rio Pará no trecho Belém-Mosqueiro
(Universidade Federal do Pará, 1987-08-04) CORDEIRO, Cleise Alves; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Acesso aberto (Open Access)
Estudo geoquímico de hidrocarbonetos e metais pesados em sedimentos recentes e material vegetal do Rio Bogotá e Rio Magdalena, Colômbia
(Universidade Federal do Pará, 2000-05-11) LOPEZ, Martha Cristina Bustos; AZEVEDO, Débora de Almeida; http://lattes.cnpq.br/5767899024347177; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Acesso aberto (Open Access)
Estudo hidrogeológico da área localizada entre o depósito de lixo metropolitano de Belém (Áura) e o Lago Água Preta
(Universidade Federal do Pará, 2003) BAHIA, Vânia Eunice; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Belem, the biggest city of the Amazonia, with an estimated population of 1.280.614 habitants, directs all types of residues produced in the urban area to the Metropolitan Waste Deposit, which was inaugurated in 1991 and is located in Santana do Aura. Currently, approximately 1000 tons of solid residues are deposited daily, turning it a local permanent source of pollution. The fact that the Agua Preta (Black Water) Lake – main source of water supply for the population of the Metropolitan Region of Belem – is located at 1.4 km west of the Residues Deposit of Aura, has raised speculation on the possible of contamination as a result of the proximity between those two locations. The main goal of the present study is the hydrogeologic characterization of the area located between the Metropolitan Waste Deposit of Belem (Aura) and the Agua Preta Lake, by correlating geophysical, hydrogeologic, and geochemical data, in order to determine the influence of the deriving contaminants of the deposit of residues on the underground water resources of the studied area, and also evaluate the possibility of their influence in the water sources of Belem. Electromagnetic geophysical measurements (EM) carried through, showed the presence of clayed layers and of the shallow water table. The results achieved through this indirect method allowed the identification of anomalous values (high conductivity) in some locations that were later checked through the installation of monitoring wells and geochemical analysis of water samples. In the hydrogeologic analysis of the area, a hydraulic gradient of approximately 0.011, effective porosity values 28%, hydraulic conductivity between 4,01 x 10-3 and 3,16 x 10-4 cm/s were obtained showing that the underground flows run at approximately 20.03 m/year, in the east-west and east-south directions. The predominant aquifers in the area are of confined type, protected by layers of clayed material with thickness ranging from 4 to 17 meters and are associated to Barreiras Group and to the Pos-Barreiras unity. The chemical analysis obtained for leachate tracers (pH, electric conductivity, alkalinity, ammonia, nitrate, chloride, sodium, calcium, magnesium and potassium) carried out in groundwater samples collected from monitoring wells have shown environmental characteristics of the water resources in the area, not evidencing contamination due to leachate. The analysis of the geochemical parameters together with the underground flows indicates that in spite of the flow be towards the Agua Preta lake, we cannot affirm that this actually happens because besides the analytical results do not show evidence of water resources pollution, other wells and mainly the narrow Santo Antonio river (located between the deposit and the lake) act as a draining system for the superficial and underground flows in the area. The narrow river would act as a natural and protective barrier, diminishing the possibility of the aquifers located more west in the studied area be reached by superficial and underground flows of leachate generated in the waste deposit.
Acesso aberto (Open Access)
Gerenciamento de resíduos sólidos como instrumento de gestão ambiental na Universidade Federal do Pará – UFPA
(Universidade Federal do Pará, 2012-04-09) SANTOS, Jaqueline Sarmento dos; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
Concern about the environmental performance is increasingly demanding a different approach by organizations. Pressure from governments, regulatory agencies and the general population are more pronounced. The Higher Education Institutions (HEIs) and their faculties; Institutes, departments and laboratories until sometime ago had no major concerns with the proper management of the impacts caused by its activities. The environmental management with the management of waste and other environmental aspects are basic tools for a positive environmental performance is achieved. The objective of this research is to propose basic guidelines for the Solid Waste Management (RS) at the Federal University of Pará, Campus of City University Professor. Jose da Silveira Netto / Bethlehem PA. The methodological procedures were based on literature review on the topic and some experiences in other universities. For the construction of the guidelines, such as the proposition of the institutionalization of integrated waste management, adoption of proposals with short and medium term surveys were carried out on the organizational structure and operational management of waste in the UFPA. It was found that the absence of a specific sector with competence and autonomy necessary for the management of waste in the UFPA, as well as lack of support from senior management to address these issues are factors that contribute to malpractice in relation to the environment throughout academic community. The results obtained in this research may provide support to the implementation of an Environmental Management System, with the creation of procedures to be adopted by the university community, which should be based on Environmental Policy to be implemented by the institution, resulting in benefits to those involved and society.
Acesso aberto (Open Access)
Hidrogeologia da área piloto Ponta de Pedras - Ilha do Marajó
(Universidade Federal do Pará, 1979-08-14) PIUCI, Jacyro; REBOUÇAS, Aldo da Cunha; http://lattes.cnpq.br/7322958772719317; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
A shallow aquifer which is very important for the development of the Ponta de Pedras region has been found and studied. Most of this aquifer is semiconfined, excepted in some areas where he can be considered as beeing free. In various wells drilled in the western part of the area and also near Igarapé-Vilar, the aquifer could not be detected. The maximum depth of the top of the aquifer reaches 14m. The depth of the base of the aquifer and its thickness exceeds respectively 34m and 17m in the well at Mangabeira. Its recharge is principally by means of meteoric water and the infiltration rate was estimated to be 106 to 107 m3/day/km2 for the month of February 1977. The effective porosity was estimated to be between 25% and 37% permiting the calculation of a volume of stored ground-water of 250x109 liters. The average Darcy coefficient (K) of the aquifer system is approximately 200/l/day/cm2. The studied ground water has the following physical and chemical characteristics: pH always acid, between 2,4 and 6,7; electrical conductivity between 13 and 2000 μmhos/cm, the most conductive waters being from the region of the basin of the Tijucaquara River; silica with average concentration of 10,4 mg/l; total iron with very low concentration implying soft water in most of the samples; manganese with a mean concentration of 0,15 mg/l; nitrogen and phosphorous with low concentrations. Sodium and potassium showed the best correlation with seasonal precipitation. At the end of the rainy season the ground water shows extremely low concentrations of nearly all elements. During the period of infrequent rainfall and until the beginning of the rainy season, the salinity increases in some areas and this causes the water to be non-potable. The domestic use of these waters is normally limited by the following characteristics: pH too acid; total iron much over 0,3 mg/l with a maximum of 4,0 mg/l; lack of fluorides; excess of chloride in one well but generally very low contents of most chemical elements. The use of these ground waters in agriculture may be limited in some parts of the area where the pH is less than 5; the conductivity too high during the dry season and when the sodium content reaches 83% to 97% (SAR).
Acesso aberto (Open Access)
A interdisciplinaridade: desafios de uma prática inovadora em pesquisas ambientais
(Universidade Federal do Pará, 2015-08-28) MEZZOMO, Agnaldo Luiz; LOPES, Luiz Otávio do Canto; http://lattes.cnpq.br/1013147545099173; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
This dissertation analyzes interdisciplinarity as a new quality in teaching and research activities for the understanding of environmental issues and to propose methodological steps to deal with sustainable development. The scientific knowledge arises with modern scientific revolution from the time when the experimental method is proposed in order to explain the nature. In this context arises a process of the fragmentation of knowledge in subjects that led to the establishment of boundaries between the sciences. From the mid-twentieth century many researchers seek to address the medium environment from a systemic approach, and begin to take advantage of interdisciplinarity for understanding and proposing alternatives to environmental problems. This paradigm shift does not occur easily and numerous difficulties beginning to emerge in the interdisciplinary implementation process as a new quality in teaching and research activities on the environment. The process of institutionalization of interdisciplinarity in the Brazilian postgraduate occurred slowly, gaining greater boost in the early twenty-first century, when the stricto sensu interdisciplinary graduate programs become the fastest growing in Brazil (BRAZIL, 2010a; 2013b ). In an attempt to identify the challenges to break the disciplinary boundaries in the pursuit of the implementation of interdisciplinarity as knowledge production method within a postgraduate program, we chose the Graduate Program in Natural Resource Management and Local Development Amazon (PPGEDAM), the Center for the Environment (NUMA) of the Federal University of Pará (UFPA) as a case study. We realize that the process of implementation of interdisciplinarity made significant progress, but it takes more effort in seeking to break the disciplinary boundaries, to consolidate and impulse research on the environment and on sustainable development.
Acesso aberto (Open Access)
Logística reversa: estudo de caso sobre o processo de implantação das práticas em uma empresa do setor varejista no estado do Pará
(Universidade Federal do Pará, 2017-11-09) RODRIGUES, João Augusto Lobato; FLORES, Maria do Socorro Almeida; http://lattes.cnpq.br/8875436559577793; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
The general objective of this work was to measure the reverse logistics program implemented in a supermarket in the metropolitan region of the city of Belém of Pará. Specifically, we sought to: 1) Contextualize environmentalism in history; 2) To study reverse logistics related to sustainability; 3) To deepen socio-environmental aspects and laws to protect solid waste management; 4) Present the process of implementing reverse logistics practices in a retail company; 5) Demonstrate the guidelines applicable to the company's solid waste management plan - PGRS; 6) To study the economic and socio-environmental impacts of solid waste reverse logistics at a retail supermarket in Belém; 7) To present the use of the collected residues and their economic and socio-environmental impacts. We used a descriptive and exploratory study, with a quantitative and qualitative approach, using a semi-structured questionnaire, field diary, data collection and analysis: the volumes, measures and quantities recorded during the months of January to March 2017. It was concluded after analyzing the volume of solid waste produced from four elements: aluminum, paper, oil and plastics, that the implementation of reverse logistics systems in retail companies (medium or large) can generate significant results, negative impacts on nature, and consequently on the life of man. From the information that considered the expenses and revenues to implement a reverse logistics system, it was possible to obtain a monthly balance of R $ 8.624,39. This is in only one of the stores of the retail group studied, with the balance generously favorable to profit.
Acesso aberto (Open Access)
Macroprojetos regionais e suas consequências para o desenvolvimento local:a IIRSA e sua influência local no caso da hidrelétrica de Belo Monte no Pará
(Universidade Federal do Pará, 2012-05-28) SILVA, Mayane Bento; FENZL, Norbert; http://lattes.cnpq.br/6834981018643186
The alignment of the national policy of economic growth with the Initiative for Integration of Regional Infrastructure in South America (IIRSA) is justified by the State Paradigm as a way to promote growth and economic liberalization through the building of the so called corridors for development. This goal can only be achieved through expansion of the Brazilian energy production, given the correlation between energy production and economic growth. The expansion of the Brazilian energy production and the huge investment in the construction of the Belo Monte Hydropower Plant is essential to the levels of energy required by the major productive sectors. So, based on the interests of the global economy in order to feed the world market with natural resources, the Brazilian government, despite enormous resistance from local and regional population, will insist in the construction of hydroelectric Belo Monte Power plant.