Results 21 to 30 of about 13,246 (253)

Recycling of Coal Fly Ash as an Example of an Efficient Circular Economy: A Stakeholder Approach

open access: yesEnergies, 2021
The scale of waste formation from coal-fired generation is significant and tends to grow steadily in the context of the global use of coal for power production.
Oksana Marinina   +4 more
doaj   +1 more source

Influence of content of coal ash on performance of cement-coal ash slurry [PDF]

open access: yesAIP Conference Proceedings, 2017
To investigate the influence of content of coal ash on performance of cement-coal ash slurry, slump test and rheological test were conducted to evaluate the slurry rheology comprehensively. In the case of the cement dosage unchanged and 57% concentration of slurry, the change effect of coal ash content in 62.5%~87.5% on rheology, bleeding rate ...
Yue Yu, Kun Cheng, Bo Pang
openaire   +1 more source

Examination of mercury contamination from a recent coal ash spill into the Dan River, North Carolina, United States

open access: yesEcotoxicology and Environmental Safety, 2021
Coal ash spills occasionally occur due to the accidental failure of surface impoundments, and toxic metal-laden ash can pose a serious health threat to adjacent aquatic ecosystems.
Peijia Ku   +8 more
doaj   +1 more source

One-Dimensional Modeling of Transport of Coal Ash in a River-Reservoir System

open access: yesE3S Web of Conferences, 2018
The present study discusses one-dimensional modeling of the coal ash spill into the Dan River in February 2, 2014, using CCHE1D model. The simulations involved unsteady flow hydrodynamics, unsteady non-equilibrium transport of bed material and coal ash ...
Altinakar Mustafa S.   +3 more
doaj   +1 more source

Radiological assessment of wastewater treatment processes based on the use of coal ashes as a filters

open access: yesJournal of Radiation Research and Applied Sciences, 2018
Coal Fly Ash and Coal Bottom Ash are a solid waste generated from coal combustion. Recently, the management of these wastes has become an important subject for environmental researchers. Due to their physical and chemical characteristics, coal ashes were
L. Taoufiq   +5 more
doaj   +1 more source

Effect of bed materials on slagging and fouling during Zhundong coal gasification

open access: yesEnergy Exploration & Exploitation, 2017
The suitable bed material is important to inhibit ash-related problems including agglomeration and slagging in furnace and fouling on tail heated surfaces during coal gasification in fluidized bed.
Xiaobin Qi   +3 more
doaj   +1 more source

Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash

open access: yesAdvances in Materials Science and Engineering, 2016
The increase in the number of coal-fired power plants with the increase in coal production and its consumption has caused the problem of the treatment of a large amount of coal ash in Indonesia.
Shinji Matsumoto   +5 more
doaj   +1 more source

RETRACTED: Human and Environmental Dangers Posed by Ongoing Global Tropospheric Aerosolized Particulates for Weather Modification

open access: yesFrontiers in Public Health, 2016
BackgroundU.S. military perception of nuclear warfare led to countless unethical nuclear experiments performed on unsuspecting individuals without their informed consent.
J. Marvin Herndon
doaj   +1 more source

Challenges and enablers in fluidization technology

open access: yesAIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

Design of intelligent ratio control system for raw coal in coal preparation plant

open access: yesGong-kuang zidonghua, 2019
It is difficult to meet requirement of field production by theoretically calculating fixed ratio of raw coal in blended coal preparation process of coal preparation plant, and problems such as large randomness, low quality of clean coal and high labor ...
YUAN Pengtao, WANG Ranfeng, FU Xiang
doaj   +1 more source

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