Results 31 to 40 of about 86,031 (227)

Investigation of fly ash from co-combustion of alternative fuel (SRF) with hard coal in a stoker boiler [PDF]

Archives of Environmental Protection, 2020
Results of fly ashes from combustion of hard coal and co-combustion of alternative fuel (SRF) with coal in the stoker boiler WR-25 type studies have been shown.
Ryszard Wasielewski, Małgorzata Wojtaszek, Agnieszka Plis   +2 more
doaj   +1 more source

Chloride Induced Reinforcement Corrosion in Mortars Containing Coal Bottom Ash and Coal Fly Ash [PDF]

Materials, 2019
Coal bottom ash is normally used as aggregate in mortars and concretes. When it is ground, its characteristics are modified. Therefore, the assessment of its long-term durability must be realized in depth. In this sense, an accelerated chloride ingress test has been performed on reinforced mortars made of Portland cement with different amounts of coal ...
Esperanza Menéndez, Cristina Argiz, Miguel Ángel Sanjuán   +2 more
openaire   +3 more sources

Retention of Elemental Mercury in Fly Ashes in Different Atmospheres [PDF]

, 2006
Mercury is an extremely volatile element, which is emitted from coal combustion to the environment mostly in the vapor phase. To avoid the environmental problems that the toxic species of this element may cause, control technologies for the removal of ...
Díaz Somoano, Mercedes, López Antón, María Antonia, Martínez Tarazona, María Rosa   +2 more
core   +1 more source

Iron Removal from a High-lithium Coal Fly Ash by Magnetic Separation

Kuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. In this study, coal fly ash from a power plant in Guizhou was used as the research object.
Jingkun Zang, Wei Cheng, Xueling Pan
doaj   +1 more source

Impact of fly ash content and fly ash transportation distance on embodied greenhouse gas emissions and water consumption in concrete [PDF]

, 2009
Background, aim and scope Fly ash, a by-product of coal-fired power stations, is substituted for Portland cement to improve the properties of concrete and reduce the embodied greenhouse gas (GHG) emissions.
A Vargas, B Marsh, DJM Flower, DLY Kong, F Bourgeois, HA Foner, J Xiao, Julien Ménaché, Kate R. O’Brien, Liza M. O’Moore, PK Mehta, R Dhir, R Dhir, RS Iyer, S Kumar, S Pfister, S Sushil, S Wang, U Bhattacharjee, VM Malhotra, VM Malhotra, VM Malhotra   +21 more
core   +1 more source

Characterization of Fly Ash for Their Effective Management [PDF]

, 2015
Coal based thermal power plants more or less producing 150 tons of fly ash each year. Endeavours to utilize fly ash powder have come to just a twenty to thirty percent reutilization rate. Around 80 percent of the power generation is from coal based power
Chakravarthi, Vaddeti Kalyan, Shashank, Nooka   +1 more
core  

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

Bio-Desilication of Coal Fly Ash and the Impacts on Critical Metal Recovery

Metals
Critical metals such as rare earth elements (REEs) are primarily associated with silicates and aluminosilicates in coal fly ash, resulting in poor REE recovery.
Shulan Shi, Ting Chen, Simeng Ren, Jinhe Pan   +3 more
doaj   +1 more source

Synthesis of merlinoite from Chinese coal fly ashes and its potential utilization as slow release K-fertilizer [PDF]

, 2015
This study focuses on the synthesis of merlinoite from Chinese coal fly ashes by KOH direct conversion method, with special emphasis on the application of synthetic merlinoite as fertilizer.
Font, Oriol, 1968-, Li, Jing, Moreno, Natalia, Querol Carceller, Xavier, Tobias, Aurelio, Vallejo, V. Ramón (Victoriano Ramón), Zhuang, Xinguo   +6 more
core   +2 more sources

Potassium Migration of Chestnut Shell Ashes Under Oxidizing Atmosphere and Its Modification Mechanism by Additives

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Biomass energy plays a critical role in alleviating environmental pressures. However, its relatively high content of alkali metals (especially for potassium) would cause ash‐related issues during combustion. To mitigate these issues, the potassium migration behaviors during chestnut shell (CS) conversion and the modification mechanisms of ...
Meijie Zhou, Weijie Guo, Fenghai Li, Xuefei Liu, Ziqiang Yang, Mingjie Ma, Yitian Fang   +6 more
wiley   +1 more source