نتایج جستجو برای: coal water slurry

تعداد نتایج: 583906  

Journal: :Journal of environmental monitoring : JEM 2010
Steven J Granger Roland Bol Liz Dixon Pam S Naden Gareth H Old Jon K Marsh Gary Bilotta Richard Brazier Sue M White Philip M Haygarth

A study was undertaken on drained and undrained 1 ha grassland lysimeters to assess the effectiveness of multiple novel tracing techniques in understanding how agricultural slurry waste moves from land to water. Artificial fluorescent particles designed to mimic the size and density of organic slurry particles were found to move off the grassland via inter-flow (surface + lateral through-flow) ...

Journal: :Geospatial health 2010
Michael Hendryx Evan Fedorko Andrew Anesetti-Rothermel

Cancer incidence and mortality rates are high in West Virginia compared to the rest of the United States of America. Previous research has suggested that exposure to activities of the coal mining industry may contribute to elevated cancer mortality, although exposure measures have been limited. This study tests alternative specifications of exposure to mining activity to determine whether a mea...

رقیمی, مصطفی, شمعانیان, غلامحسین, قلی پور, محسن, مظاهری, سید احمد,

This study mostly investigated the environmental impact of acid mine drainage (AMD) on the tailing of coal cleaning factory in Mazandaran province. This factory is one of the largest and the oldest in the coal concentration in Central Alborze Coal Basin. So, annually huge amounts of coal tailing will be left. The sampling of coal, coal tailing, drainage water from coal tailing, factory's waste ...

Journal: :Journal of environmental quality 2003
Søren O Petersen Henrik H Nissen Ivar Lund Per Ambus

The distribution of moisture, degradable C, and N after direct injection of slurry can affect the turnover and plant availability of slurry N. This study examined effects of injection method, soil conditions, and slurry properties on the infiltration of several slurry components under practical conditions. The water retention capacity of 22 pig and cattle slurries was quantified by dialysis at ...

Journal: :Energies 2023

An experimental study of the ignition and combustion processes coal-water slurry (CWS) droplets based on coal enrichment waste in a high-temperature oxidizer at 650–850 °C with syngas addition was carried out. The fuel mixture finely dispersed solid combustible particles (coal sludge, 10–100 µm size) water. product biomass pyrolysis two waste-derived fuels laboratory gasifier. Composition contr...

2010
A. Ragupathy R. Ramkumar L. Sivakumar

The effect of the geometrical parameter of blades on heat transfer co-efficient were experimentally studied for agitated vessels using coal slurry in coal gasification. The intensity of hear transfer during mixing of fluids depends on the type of the stirrer, the design of the vessel and conditions of the process. The type and size of the stirrer, as well as its location in the vessel, also aff...

Journal: :Journal of environmental management 2011
Muriithi Grace Nyambura Gitari Wilson Mugera Petrik Leslie Felicia Ndungu Patrick Gathura

Coal combustion by-products such as fly ash (FA), brine and CO(2) from coal fired power plants have the potential to impact negatively on the environment. FA and brine can contaminate the soil, surface and ground water through leaching of toxic elements present in their matrices while CO(2) has been identified as a green house gas that contributes significantly towards the global warming effect...

2017
Yining Lv Yintang Guan Shudi Guo Qinglan Ma Jing Gong Guangjin Chen Changyu Sun Kai Guo Lanying Yang Bohui Shi Wei Qin Yubo Qiao

Hydrate plugging is the major challenge in the flow assurance of deep-sea pipelines. For water-in-oil emulsions, this risk could be significantly reduced with the addition of anti-agglomerants (AAs). Hydrates often form from water-in-oil emulsions and the measurement of emulsion and slurry viscosity constitutes the basis for the application of hydrate slurry flow technology. In this work, using...

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