نتایج جستجو برای: thar lignite mine

تعداد نتایج: 25179  

Journal: :Minerals 2023

The late Paleocene–early Eocene warm greenhouse conditions, characterized by elevated pCO2 levels in the atmosphere and a dramatic increase sea surface temperature, prompted abundant authigenic glauconite formation within shallow marine sediments worldwide lowering net sedimentation rate, increasing organic productivity expanding oxygen minimum zones to oceans. early marginal Cambay Shale Forma...

2017
Mercy A. Ezeokonkwo Okechukwu F. Ofor Julius U. Ani

Cd(II) and Pb(II) ions removal using adsorbents prepared from sub-bituminous coal, lignite, and a blend of coal and Irvingia gabonensis seed shells was investigated. Fourier transform infrared, scanning electron microscope and X-ray fluorescence analyses implicated hydroxyl, carbonyl, Al2O3, and SiO2 as being responsible for attaching the metal ions on the porous adsorbents. The optimum adsorpt...

2013
Manikkam Radhakrishnan Venugopal Gopikrishnan Arumugam Suresh Nagamiah Selvakumar Ramasamy Balagurunathan Vanaja kumar

During the course of the anti-infective drug discovery programme, actinomycete strain D25 was recovered from the Thar Desert soil, Rajasthan, India. Actinomycin type of compound isolated from the strain D25 showed promising activity against multi drug resistant and extensively drug resistant M. tuberculosis isolates. The present study reports the characteristics and phylogenetic status of the a...

Journal: :Minerals 2023

Naturally occurring organic materials containing humic acids show a strong affinity towards rare earth elements (REE) and other critical elements. Leaching experiments on lignite coal waste produced from construction sand production revealed that the contained REEs were associated with matter. Furthermore, adsorption studies was capable of extracting model solution increased REE content by more...

2015
Friederike Gründger Núria Jiménez Thomas Thielemann Nontje Straaten Tillmann Lüders Hans-Hermann Richnow Martin Krüger

Coal-bearing sediments are major reservoirs of organic matter potentially available for methanogenic subsurface microbial communities. In this study the specific microbial community inside lignite-bearing sedimentary basin in Germany and its contribution to methanogenic hydrocarbon degradation processes was investigated. The stable isotope signature of methane measured in groundwater and coal-r...

Journal: :Applied and environmental microbiology 2005
Gerard Muyzer Esengül Yildirim Udo van Dongen Michael Kühl Roland Thar

Molecular analysis of bacteria enriched under in situ-like conditions and mechanically isolated by micromanipulation showed that a hitherto-uncultivated microaerophilic bacterium thriving in oxygen-sulfide counter-gradients (R. Thar and M. Kühl, Appl. Environ. Microbiol. 68:6310-6320, 2000) is affiliated with the epsilon-subdivision of the Proteobacteria. The affiliation was confirmed by the us...

2016
J. Benndorf

multiple excavators producing multiple products of raw materials are highly complex and exhibit strong interdependencies between constituents. A network of conveyor belts is used for transportation of the extracted materials to different waste dumps or the coal stockpile. Optimal decision-making in short-term planning and production control are impacted mainly by geological uncertainty associat...

2012
Nattasut Mantananont Savitri Garivait Suthum Patumsawad

This study is focused on the emission of fixed bed combustor batch operated. Real-time analyser ELPI (electrical low-pressure impactor) system was used to size-segregated particulate matter emission ranging from 40 nm to 10 μm. The results show that total number concentration were 3.4 × 10(3), 1.6 × 10(4), and 1.5 × 10(5) particles/cm(3) · kg(fuel), while total mass of particles were 12.2, 8.0,...

Journal: :Mediterranean journal of social sciences 2021

Desert was a ‘no-go area’ and the interactions with it were only to curb contain rebelling forces. This article is an attempt understand contours history of Thar Rajasthan explore features that have kept various desert states (Jodhpur, Jaisalmer, Barmer, Bikaner etc.) their populace sustaining in this region throughout ages, even when had scarce water resources intense huge extensive dunes. Thr...

Journal: :Science 2015
F Inagaki K-U Hinrichs Y Kubo M W Bowles V B Heuer W-L Hong T Hoshino A Ijiri H Imachi M Ito M Kaneko M A Lever Y-S Lin B A Methé S Morita Y Morono W Tanikawa M Bihan S A Bowden M Elvert C Glombitza D Gross G J Harrington T Hori K Li D Limmer C-H Liu M Murayama N Ohkouchi S Ono Y-S Park S C Phillips X Prieto-Mollar M Purkey N Riedinger Y Sanada J Sauvage G Snyder R Susilawati Y Takano E Tasumi T Terada H Tomaru E Trembath-Reichert D T Wang Y Yamada

Microbial life inhabits deeply buried marine sediments, but the extent of this vast ecosystem remains poorly constrained. Here we provide evidence for the existence of microbial communities in ~40° to 60°C sediment associated with lignite coal beds at ~1.5 to 2.5 km below the seafloor in the Pacific Ocean off Japan. Microbial methanogenesis was indicated by the isotopic compositions of methane ...

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