نتایج جستجو برای: lignite

تعداد نتایج: 1212  

2005
James D. Haywood

In 1980, an experimental opencast lignite mine was developed to compare redistributed A horizon with three minesoil mixtures as growth media for woody plants. The three minesoil mixtures contained different amounts and types of overburden materials, and normal reclamation practices were followed. Loblolly pine (Pinus taeda L.), sawtooth oak (Quercus acutissima Carruthers), yaupon (Ilex vomitori...

2016
Raisa Korzh Valerii Bortyshevskyi

The gasification of an aqueous suspension of lignite from Alexandria coalfield (Ukraine) under the supercritical pressure was studied. The initial rates of the formation of hydrogen, carbon dioxide and methane were evaluated. The mutually stimulating interaction of the components of "brown coal-water-mineral matter" system was shown due to the influence of nanoscaled water medium on the formati...

2013
Mateusz Jasion Aleksandra Samecka-Cymerman Krzysztof Kolon Alexander J. Kempers

We investigated the possibility of use of Tanacetum vulgare (tansy) as an ecological indicator of metal concentration in a naturally colonized open-pit lignite mine in Bełchatów (Poland). Tanacetum vulgare is the only species growing abundantly and spontaneously in the lignite mine waste dumps. Metal concentrations in roots, stems, leaves, flowers, and soil were measured in dump sites differing...

2013
Awanindra Pratap Singh Prem Kumar Gupta Manoj Khandelwal

The mining lease area of Surka [District Bhavnagar, Gujarat (India)] is located within 6-12 km horizontal distance of sea shore of Gulf of Cambay. Whenever, there will be onset of lignite extraction, there will be always a threat of sea water intrusion into the mining lease area due to its close proximity to seashore. This article describes the prediction of sea water intrusion into the lease a...

Journal: :International Journal of Coal Science & Technology 2014

Journal: :Scientific American 1921

2016

The state of North Rhine-Westphalia (NRW) is vital to the success of Germany’s energy transition, as it is the traditional center of Germany’s manufacturing and energy-intensive industries, such as metal production, basic chemicals, non-ferrous metals and paper. NRW’s long history and high concentration of energy-intensive industry operations is mainly due to the proximity of black coal and lig...

Journal: :int. journal of mining & geo-engineering 2012
r. n. singh a. s. atkins f. doulati ardejani

the paper is concerned with the hydrogeological appraisal of the proposed mining operations in thethar lignite field in sindh, pakistan. the thar coalfield covers an area of approximately 9000km2 andcontains three lignite seams lying at depth of 130m to 250 m. in the thar lignite field, the presence ofthree main aquifers induces pore pressure in the rock mass surrounding the lignite seams and m...

Journal: :international journal of environmental research 2012
e. amirabedin d. mcilveen-wright

biomass co-firing with lignite represents an attractive solution for operating lignite-fired thermalpower plants (tpp) with the dual advantage of using local renewable resources and simultaneously reducingemissions. the subject of this study is technical and environmental investigation of the feasibility of the cofiring of soma lignite with some dried agricultural residues in the soma thermal p...

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