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| Registros recuperados: 23 | |
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| Araújo, Ademir Sérgio Ferreira de; Lima, Luciano Moura; Melo, Wanderley José de; Santos, Vilma Maria dos; Araujo, Fabio Fernando de. |
| This study evaluated soil properties and cowpea yield after six years of consecutive amendment of composted tannery sludge. The compost was applied annually at 0, 2.5, 5, 10, and 20 Mg ha-1 and at the end of the sixth year, the chemical and physical properties of the soil were evaluated using a randomized block design. The Cr, P, K, Ca, Na and organic C contents and the pH and cation exchange capacity increased linearly after six years of compost amendment. The soil bulk density decreased linearly while the aggregate stability index increased after compost amendment. As a consequence of the changes in the chemical and physical properties of the soil, cowpea yield showed a quadratic response to the tannery rates, with an estimated maximum cowpea yield at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Waste management; Soil fertility; Soil quality Ciencia do Solo. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28281 |
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| Sousa, Ricardo Silva de; Nunes, Luis Alfredo Pinheiro Leal; Lima, Aurenivia Bonifacio de; Melo, Wanderley Jose de; Antunes, Jadson Emanuel Lopes; Araujo, Ademir Sérgio Ferreira de. |
| Chromium (Cr) accumulation in soil and plants has been reported after successive applications of tannery sludge, which is a matter of concern because Cr can promote environmental contamination and affect the food chain. In this study, we evaluated the growth of and Cr accumulation in maize and cowpea after seven years of consecutive applications of composted tannery sludge (CTS) under field conditions. The experiment consisted of application of CTS at five levels: 0 (control), 2.5, 5, 10, and 20 Mg ha-1 (dry basis). The growth of and Cr accumulation in maize and cowpea were evaluated at 75 and 65 days after plant emergence, respectively. CTS application increased the shoot biomass of maize and cowpea. Accumulation of Cr was similar for both plant species,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Waste management; Tannery sludge; Plant and soil interaction; Metals.; Solos. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35361 |
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| Mazzucotelli,Cintia Anabela; Ponce,Alejandra Graciela; Kotlar,Catalina Elena; Moreira,María del Rosario. |
| There is a trend towards the use of novel technologies nowadays, mainly focused on biological processes, for recycling and the efficient utilization of organic residues that can be metabolized by different microorganisms as a source of energy. In the present study the isolation of bacterial strains from six different agro-industrial by-products and waste was performed with the objective of evaluating their hydrolytic capacities and suitability for use in bioconversion of specific substrates. The 34 isolated strains were screened in specific culture media for the production of various hydrolytic enzymes (lipase, protease, cellulase, and amylase). It was found that 28 strains exhibited proteolytic activity, 18 had lipolytic activity, 13 had caseinolytic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydrolytic profile; Waste management; Bioconversion. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000200013 |
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| Inoue,Keles R. A.; Souza,Cecília De F.; Matos,Antonio T.; Sousa,Marilú S.; Vieira,Maria De F. A.. |
| ABSTRACT Swine wastewater have high pollution load, requiring treatment before its disposal into the environment. Methane (CH4) potentially emitted for such waste is considered 21 times more polluting than Carbon dioxide (CO2), and the nitrous oxide (N2O) is considered 310 times. In this way, projects of the Clean Development Mechanism (CDM) and energy use related to the CH4 are worldwide diffused. It was evaluated the potential greenhouse gas emissions in the influent and effluent from digesters and stabilization ponds used to treat the swine wastewaters in two commercial farms operating in full cycle, located in the municipality of Oratorios-MG, Brazil. Using the methodology “AM0006” to estimate the average potential of greenhouse gases, it was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Greenhouse gases; Air pollution; Swine; Waste management. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601198 |
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| Hussenot, Jerome. |
| The former extensive polyculture systems of marine fish farming, are today replaced mainly by intensive monoculture systems (salmon, shrimp). These systems, multiplied in the same coastal zone, can present a significant environmental impact. To treat and value fish farming effluents, new integrated systems were constructed and tested to different scales. Some examples of land- and seabased systems around the world are presented, in particular the European project of innovation "Genesis" in which several French public and private, national and regional organisations are participants (IFREMER, Regional Centre of Experiment and Aquacultural Applications in Poitou- Charentes, IDEE). Recommendations are supplied to promote the development of the integrated fish... |
| Tipo: Text |
Palavras-chave: Aquaculture durable; Polyculture; Systèmes intégrés; Contrôle des déchets; Sustainable aquaculture; Polyculture; Integrated systems; Waste management. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/00030/14171/11442.pdf |
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| The Fifth Joint IOC/UNIDO Workshop on Marine Debris/Waste Management for the Gulf of Guinea was opened at 9.00 a.m. on Monday 19 April 1999, at the “Centre de Recherches Occanologiques (CRO)” of Abidjan, C&e d’Ivoire. Dr J. Konan, Deputy Director of the CRO, opened the meeting. In his speech, he expressed his satisfaction in having this Workshop in the new conference room of the CRO. He mentioned the important role of the GOG-LME Project in research pollution, and conservation for the Large Marine Ecosystem of the Gulf of Guinea for the last three years. He wished, on behalf of the CR0 Director, a fruitful meeting to the participants. Mr J. Barb&e, IOC representative, welcomed the participants on behalf of the Executive Secretary IOC, Dr Bernal,... |
| Tipo: Proceedings Paper |
Palavras-chave: Wastes; Waste management; Http://aims.fao.org/aos/agrovoc/c_34763. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/379 |
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| Sardá,Luana Goulart; Higarashi,Martha Mayumi; Nicoloso,Rodrigo da Silveira; Oliveira,Paulo Armando Victória de; Falkoski,Camila; Ribeiro,Stephanie Mayara Siega; Coldebella,Arlei. |
| Abstract: The objective of this work was to contribute to the establishment of a baseline for the methane emission factor for the management of swine manure, considering the current practice of raw manure storage in two open deposits in parallel, in Southern Brazil. Methane (CH4) emissions were continuously measured in three PVC tanks of 3 m3, during 180 days, in the summer. As the content of volatile solids of pig slurry ran out in approximately 130 days, the CH4 emission factor was calculated as B0= 0.48 m3kg-1VS. Although this value is higher than the B0 estimated by Intergovernmental Panel on Climate Change for Latin America (0.29 m3 kg-1 VS), it is in agreement with the B0 estimated for developed countries (0.45 and 0.48 m3 kg-1 VS, for the US and EU,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal production; Emission factor; Global warming; Greenhouse gases; Waste management. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600657 |
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| Tiller, Kelly; Jakus, Paul M.. |
| As traditional methods of municipal solid waste management (MSWM) become increasingly expensive due to increased regulation, many local governments are considering cooperation as a waste management strategy. A theoretical model is used to specify a partial observability probability model to analyze the decision Tennessee counties made to form either a single-county solid waste region or a multi-county region. We find that, while economies of scale may be a factor in the consolidation decision, similarities and differences between counties in current individual provision levels of solid waste services, ability to pay for services, and expectations for future solid waste service demands are statistically more important. |
| Tipo: Journal Article |
Palavras-chave: Regional cooperation; Municipal solid waste; Waste management; Regionalization; Public Economics. |
| Ano: 2005 |
URL: http://purl.umn.edu/10244 |
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| Registros recuperados: 23 | |
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