Response to Letter to the Editor “Mineralogical phase separation and leaching characteristics of typical toxic elements in Chinese lignite fly ash”

2021 ◽  
Vol 757 ◽  
pp. 142861
Author(s):  
Shuhua Ma
Keyword(s):  
Phase Separation ◽  
Fly Ash ◽  
Toxic Elements ◽  
Letter To The Editor ◽  
Lignite Fly Ash ◽  
Leaching Characteristics ◽  
Mineralogical Phase

Mineralogical phase separation and leaching characteristics of typical toxic elements in Chinese lignite fly ash

2020 ◽  
Vol 708 ◽  
pp. 135095 ◽  
Author(s):  
Fuli Liu ◽  
Shuhua Ma ◽  
Kun Ren ◽  
Xiaohui Wang
Keyword(s):  
Phase Separation ◽  
Fly Ash ◽  
Toxic Elements ◽  
Lignite Fly Ash ◽  
Leaching Characteristics ◽  
Mineralogical Phase

scholarly journals Effect of Lignite Fly Ash on the Growth and Reproduction of Earthworm Eisenia fetida

2009 ◽  
Vol 6 (2) ◽  
pp. 511-517 ◽  
Author(s):  
S. Sarojini ◽  
S. Ananthakrishnasamy ◽  
G. Manimegala ◽  
M. Prakash ◽  
G. Gunasekaran
Keyword(s):  
Fly Ash ◽  
Eisenia Fetida ◽  
Power Plants ◽  
Thermal Power ◽  
Biological Properties ◽  
Cow Dung ◽  
Physical Chemical ◽  
Lignite Fly Ash ◽  
Agricultural Use ◽  
Growth And Reproduction

Fly ash is an amorphous ferroalumino silicate, an important solid waste around thermal power plants. It creates problems leading to environmental degradation due to improper utilization or disposal. However, fly ash is a useful ameliorant that may improve the physical, chemical and biological properties of soils and is a source of readily available plant macro and micronutrients when it is used with biosolids. Supply of nutrients from fly ash with biosolids may enhance their agricultural use. The growth and reproduction ofEisenia fetidawas studied during vermicomposting of fly ash with cowdung and pressmud in four different proportions (T1,T2,T3& T4) and one controli.e.,cow dung and pressmud alone. The growth, cocoon and hatchlings production were observed at the interval of 15 days over a period of 60 days. The maximum worm growth and reproduction was observed in bedding material alone. Next to that the T1was observed as the best mixture for vermiculture.

Evaluation of Synthetic Aggregate from Lignite Fly Ash

1974 ◽  
Vol 100 (1) ◽  
pp. 27-40
Author(s):  
Roger L. Engelke ◽  
William B. Ledbetter ◽  
Bob M. Gallaway
Keyword(s):  
Fly Ash ◽  
Lignite Fly Ash

Assessment of strength and leaching characteristics of heavy metal–contaminated soils solidified/stabilized by cement/fly ash

2019 ◽  
Vol 26 (29) ◽  
pp. 30206-30219 ◽  
Author(s):  
Fusheng Zha ◽  
Chunjie Ji ◽  
Long Xu ◽  
Bo Kang ◽  
Chengbin Yang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Fly Ash ◽  
Contaminated Soils ◽  
Leaching Characteristics

Measuring Graphitic Carbon and Crystalline Minerals in Coals and Bottom Ashes

1987 ◽  
Vol 31 ◽  
pp. 343-349 ◽  
Author(s):  
David L. Wertz ◽  
Leo W. Collins ◽  
Franz Froelicher
Keyword(s):  
Energy Source ◽  
Fly Ash ◽  
Chemical Species ◽  
Primary Energy ◽  
Toxic Chemical ◽  
Atom Pair ◽  
Crystalline Phases ◽  
X Ray ◽  
X Ray Scattering ◽  
Lignite Fly Ash

AbstractThe use of coal, as either a primary energy source or as a source of feedstock chemicals, has been complicated by the noxious and toxic chemical species formed in its gaseous effluents and also by the huge quantities of ash vhich result from its processing. Both the noxious gases and the ash have been the subjects of Federal legislations.X-ray powder patterns (XRPP), composed of atom-pair and self x~ray scattering and the diffraction produced by crystalline phases, have long been used to investigate coals and particularly their combustion ashes (1-3). Over twenty different crystalline phases have recently been reported to exist in certain lignite fly ash (3). Analysis of the crystalline phases has typically been emphasized in previous papers involving coals and ashes, but the amorphous scattering has been given little treatment.

Microstructure and Chemical Variation in Class F Fly Ash Glass

1987 ◽  
Vol 114 ◽  
Author(s):  
J. C. Qian ◽  
E. E. Lachowski ◽  
F. P. Glasser
Keyword(s):  
Phase Separation ◽  
Fly Ash ◽  
Combustion Process ◽  
Glassy Matrix ◽  
Nanometer Scale ◽  
Chemical Variation ◽  
Transmission Electron ◽  
Class F Fly Ash ◽  
Micrometer Scale ◽  
Class F

ABSTRACTFly ash consists of mixtures of crystalline substances in a glassy matrix. This matrix is itself inhomogeneous. The combustion process gives rise to compositional fluctuations typically on a micrometer scale; these fluctuations are preserved in the glass and are gradational. However, high-resolution transmission electron microscopy of Class F ash also reveals the existence of interfaces on a nanometer scale. These arise as a consequence of phase separation. Textures and interfaces typical of spinodal decomposition and possibility also suggestive of classical immiscibility have been observed. It is believed that the occurrence of phase separation resulting in nanometer-scale inhomogeneities will be a feature common to most Class F glasses. The consequences of this complex microstructure to reactivity are not as yet known, but some speculations are presented.

Pedological properties and ecological implications of substrates derived 3 and 11 years after the revegetation of lignite fly ash disposal sites in Serbia

CATENA ◽  
2018 ◽  
Vol 163 ◽  
pp. 78-88 ◽  
Author(s):  
Olga Kostić ◽  
Snežana Jarić ◽  
Gordana Gajić ◽  
Dragana Pavlović ◽  
Marija Pavlović ◽  
...  
Keyword(s):  
Fly Ash ◽  
Lignite Fly Ash ◽  
Ecological Implications ◽  
Ash Disposal

Cr(VI) Leached from Lignite Fly Ash—Assessment of Groundwater Contamination Risk

2020 ◽  
Vol 231 (7) ◽  
Author(s):  
C. Tsioptsias ◽  
G. Samiotis ◽  
L. Lefteri ◽  
E. Amanatidou
Keyword(s):  
Fly Ash ◽  
Groundwater Contamination ◽  
Contamination Risk ◽  
Lignite Fly Ash
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