Reclamation
Mostrando 1-12 de 73 artigos, teses e dissertações.
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1. Multi-stage dumping sequence - a feasible waste management alternative for open pit mining
Abstract Waste management and environmental aspects are progressively gathering attention in the mining industry. Mine planners must deal with increasingly complex tasks to balance between ore block schedules, waste disposal, operational cost and environmental reclamation. The mine incomes are generally related to mining and processing of the ore, thus most
REM, Int. Eng. J.. Publicado em: 2021-06
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2. Assessment of the effects of vegetational cover on the long-term stabilityof a waste rock dump
Abstract Waste rock dump reclamation includes re-grading the banks to flatten the overall slope followed by re-vegetation. These measures are required to reduce surface erosion, provide physical stability, and meet future use goals. In some cases, the presence of trees can cause localized shear zones in a waste rock dump by the load of the tree mass and the
REM, Int. Eng. J.. Publicado em: 16/09/2019
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3. Mine closure in Ouro Preto: the remnants of the 18th century gold rush and the tourism as an economic opportunity
Abstract Mine closure is the set of all activities that follow the end of the productive phase of a mine, characterizing itself as the process of returning an area transformed by mining into a new condition of sustainability, considering the potential future and the best possible reclamation of the area impacted. However, such an understanding was not concei
REM, Int. Eng. J.. Publicado em: 2019-03
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4. First evaluation of semidirect recycling methods for the reclamation of cemented carbides based on a literature survey
ABSTRACT At the moment the industrially applied techniques for cemented carbide reclamation feature several deficiencies. Depending on the process route, obstacles consist in high energy and chemical consumption (indirect recycling methods) or a deterioration of the recycled product in comparison with the primary material (direct recycling approach). Therefo
Matéria (Rio J.). Publicado em: 19/07/2018
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5. Enhanced settling of mature fine tailings (MFT) by paramagnetic nanofluids based on nanoiron
ABSTRACT The extraction of bitumen from sand by utilizing hot water processes results in the production of a slurry waste which is stored in so called “tailings ponds”. Within these ponds, while fast settling sand particles segregate from the slurry in relatively short time, the fines fraction accumulates in the center of the pond and then settles, becom
Matéria (Rio J.). Publicado em: 19/07/2018
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6. Reclamation of a Degraded Coal-Mining Area with Perennial Cover Crops
ABSTRACT: Studies addressing the potential of grass roots in improving the structural quality of constructed minesoils are not frequent in the literature, although they are essential for understanding the re-establishment of soil functions in the environment. The objective of this study was to quantify the root attributes of the species Urochloa humidicola,
Rev. Bras. Ciênc. Solo. Publicado em: 19/12/2016
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7. Litter Decomposition of Two Pioneer Tree Species and Associated Soil Fauna in Areas Reclaimed after Surface Coal Mining in Southern Brazil
ABSTRACT Decomposition of leaf litter from pioneer tree species and development of associated soil meso- and macrofauna are fundamental for rehabilitation processes in reclaimed coal mining areas. The aim of our study was to evaluate decomposition of Schinus terebinthifolius and Senna multijuga to answer three basic questions: (i) What type of leaf litter de
Rev. Bras. Ciênc. Solo. Publicado em: 03/11/2016
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8. Reclamation status of a degraded pasture based on soil health indicators
Pasture degradation is a concern, especially in susceptible sandy soils for which strategies to recover them must be developed. Microbiological and biochemical soil health indicators are useful in the guindace of soil management practices and sustainable soil use. We assessed the success of threePanicum maximum Jacq. cultivars in the reclamation of a pasture
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-06
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9. Stonemeal of amazon soils with sediments from reservoirs: a case study of remineralization of the tucuruí degraded land for agroforest reclamation
Este estudo sugere o emprego dos sedimentos acumulados no reservatório de Tucuruí (Pará/Brasil) para remineralizar os solos degradados do seu entorno. A abordagem foi baseada nos princípios da tecnologia da Rochagem. Isto sugere que o solo pode ser rejuvenescido pela adição de rochas moídas ricas em macro e micronutrientes. A remoção dos sedimentos
An. Acad. Bras. Ciênc.. Publicado em: 2013-03
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10. Avaliação do uso de macrófitas aquáticas na recuperação do solo e no desenvolvimento de espécies arbóreas do cerrado em áreas degradadas adjacentes ao reservatório utilizado pela Usina Hdrelétrica Corumbá IV
Em um trecho do reservatório utilizado pela Usina Hidrelétrica Corumbá IV foi realizado um experimento de recuperação de área degradada com uso de macrófitas aquáticas como fonte de nutrientes para os plantios realizados na região. Este estudo buscou avaliar a recuperação do solo e o desenvolvimento arbóreo das espécies nativas utilizando como i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2012
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11. Recuperação de solo salino-sódico por fitorremediação com Atriplex nummularia ou aplicação de gesso. / Reclamation of saline-sodic soil by phytoremediation with Atriplex nummularia or application gypsum.
Arid and semi-arid environments may present salty soils, which hamper plant growth, being removed from productive process constituting degradation cores. Under these conditions, glycophyte plants cant growth because high levels of salts hinder their metabolism, however, for halophytes this is favorable environment and these plants may represent a key to soil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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12. Qualidade e vida de prateleira de chouriço defumado elaborado com sangue, vísceras e carne de caprinos / Quality and shelf life of smoked chorizo made with blood, viscera and goat meat.
Com o aumento da população mundial, torna-se cada vez mais frequente a busca por novas fontes proteicas que atendam às necessidades nutricionais dos consumidores e ao mesmo tempo possuam atratividade sensorial. Na indústria cárnea, o aproveitamento integral da carcaça dos animais de abate é ineficiente, especialmente dos componentes não constituintes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012