Leaching characteristics of boron and selenium for various coal fly ashes

A Iwashita, Y Sakaguchi, T Nakajima, H Takanashi… - Fuel, 2005 - Elsevier
The leaching characteristics of B and Se for coal fly ash (CFA) were examined. Twenty-one
CFA samples were subjected to a leaching test, in which CFA was shaken with pure water in …

Leaching characteristics of arsenic and selenium from coal fly ash: role of calcium

T Wang, J Wang, Y Tang, H Shi, K Ladwig - Energy & Fuels, 2009 - ACS Publications
Understanding the leaching behavior of arsenic (As) and selenium (Se) in coal fly ash is
important in evaluating the potential environmental impact of coal fly ash. Batch experiments …

Leachability of elements in alkaline and acidic coal fly ash samples during batch and column leaching tests

G Neupane, RJ Donahoe - Fuel, 2013 - Elsevier
Three acidic (HA, HB, and MA) and one alkaline (PD) fly ash samples collected from four
different power plants were subjected to batch and column leaching tests to evaluate the …

Comparative leaching experiments for trace elements in raw coal, laboratory ash, fly ash and bottom ash

Y Wang, D Ren, F Zhao - International Journal of Coal Geology, 1999 - Elsevier
Samples of raw coal, fly ash and bottom ash have been collected from a Chinese power
plant together with laboratory ash obtained by ashing of the coal under 850° C. Comparative …

Studies on the phase mineralogy and leaching characteristics of coal fly ash

S Khanra, D Mallick, SN Dutta… - Water, Air, and Soil …, 1998 - Springer
The phase mineralogy and leaching characteristics of some Indian coal fly ashes were
studied to assess their safe disposal in abandoned coal mines. Since, fly ash contains a …

Leaching behaviour of elements from coal combustion fly ash: an overview

M Izquierdo, X Querol - International Journal of Coal Geology, 2012 - Elsevier
Coal-based power generation produces over 750Mt of coal ash per year globally, but under
50% of world production is utilised. Large amounts of fly ash are either stored temporarily in …

The leaching characteristics of trace elements in coal fly ash and an ash disposal system of thermal power plants

RK Singh, NC Gupta, BK Guha - Energy Sources, Part A: Recovery …, 2012 - Taylor & Francis
The present investigation was conducted to study the leaching characteristics of trace
elements in coal fly ash and the ash disposal system of thermal power plants. The batch …

Leaching of various metals from coal into aqueous solutions containing an acid or a chelating agent

A Ohki, T Nakajima, H Yamashita, A Iwashita… - Fuel processing …, 2004 - Elsevier
Twelve coals were subjected to leaching procedure with an aqueous solution containing an
acid or a chelating agent, such as EDTA. The susceptibility of each metal in coal for the …

Removal of boron from coal fly ash by washing with HCl solution

S Kashiwakura, H Kubo, Y Kumagai, H Kubo… - Fuel, 2009 - Elsevier
Boron as an environmentally regulated substance is well known to condense in the coal fly
ash generated from coal combustion plants. Since boron in the coal fly ash tends to elute …

The leachability and chemical speciation of selected trace elements in fly ash from coal combustion and refuse incineration

A Wadge, M Hutton - Environmental Pollution, 1987 - Elsevier
A laboratory leaching test has been used to predict the potential mobility of As, Se, Pb and
Cd in landfilled fly ash produced by coal combustion and refuse incineration. These waste …