Volatilisation of trace elements for coal–sewage sludge blends during their combustion☆

Fuel ◽  
2003 ◽  
Vol 82 (15-17) ◽  
pp. 1939-1948 ◽  
Author(s):  
M.Belén Folgueras ◽  
Ramona M Dı́az ◽  
Jorge Xiberta ◽  
Ismael Prieto
Keyword(s):  
Trace Elements ◽  
Sewage Sludge

scholarly journals Sewage Sludge as a Tool in Limiting the Content of Trace Elements in Avena sativa L. on the Soil Polluted with Diesel Oil

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4003
Author(s):  
Mirosław Wyszkowski ◽  
Jadwiga Wyszkowska ◽  
Agata Borowik ◽  
Natalia Kordala
Keyword(s):  
Trace Elements ◽  
Sewage Sludge ◽  
Soil Contamination ◽  
Avena Sativa ◽  
Negative Impact ◽  
Diesel Oil ◽  
Average Content ◽  
Nickel Copper ◽  
Copper Manganese ◽  
Positive Effect

The aim of the research was to determine the effect of soil contamination with diesel oil (0; 5; 10 and 15 cm3 kg−1 of soil) on the content of trace elements in the aboveground parts of oat (Avena sativa L.). Stabilised sewage sludge was used to mitigate the likely negative impact of diesel oil on the plant. Growing soil contamination with diesel oil had a significant impact on the content of trace elements in the aboveground biomass of oat. In the series without sewage sludge, the contents of the analysed elements, except for chromium, zinc, copper and cobalt, were positively correlated with the increasing doses of diesel oil. The largest increase in the content was recorded in the case of manganese. The sewage sludge used to reduce the influence of diesel oil on the chemical composition of oat had a positive effect on the content of the analysed trace elements. Compared to the series without the addition of a stabilised sewage sludge, it contributed to a reduction in the average content of chromium, nickel, copper, manganese and cobalt in the aboveground parts of oat plants. No significant effect of the applied remediation treatment was noted for cadmium, and the results were equivocal for iron.

scholarly journals Growth, yield and content of trace elements in coffee fruits grown in soils under successive application of sewage sludge

2016 ◽  
Vol 11 (29) ◽  
pp. 2536-2546
Author(s):  
Lucrecio da Costa Alisson ◽  
L uacute cia Pinheiro Gabriela ◽  
Villela Soares Fl aacute via ◽  
Alberto Silva Carlos ◽  
Maria de Lima Jos eacute
Keyword(s):  
Trace Elements ◽  
Sewage Sludge ◽  
Growth Yield

Phytoremediation of sewage sludge contaminated by trace elements and organic compounds

2018 ◽  
Vol 164 ◽  
pp. 356-366 ◽  
Author(s):  
Werther Guidi Nissim ◽  
Alessandra Cincinelli ◽  
Tania Martellini ◽  
Laura Alvisi ◽  
Emily Palm ◽  
...  
Keyword(s):  
Trace Elements ◽  
Sewage Sludge ◽  
Organic Compounds

Appearance of Trace Elements in Co-Firing Fuels

2005 ◽  
Author(s):  
Maria Zevenhoven ◽  
Rainer Backman ◽  
Bengt-Johan Skrifvars ◽  
Mikko Hupa
Keyword(s):  
Trace Elements ◽  
Sewage Sludge ◽  
Ammonium Acetate ◽  
Chloric Acid ◽  
Thermodynamic Calculations ◽  
Chemical Fractionation ◽  
Forest Residue ◽  
Impregnated Wood ◽  
Leaching Procedure

With the implementation of new EU guidelines the levels of maximum allowable emission levels of Cd, Tl, Hg, Sb, As, Pb, Cr, Co, Cu, Mn, Ni, V will be further restricted. This may have implications for co-combustion of coal with waste derived fuels. In this study chemical fractionation, i.e. a stepwise leaching procedure has been applied on coal, peat, sewage sludge, bark, impregnated wood and forest residue. With this method fuels are leached in three steps, i.e. leached with water, ammonium acetate and hydro chloric acid, respectively. Both solubility in different leaching agents of main ash forming matter and the trace elements Cd, Tl, Hg, Sb, As, Pb, Cr, Co, Cu, Mn, Ni, V and Zn were studied. In this way more information became available about the characteristics of co-firing fuels. Thermodynamic calculations were used to show the consequences of the interaction with main ash forming elements on the partition of Cd, Hg, Pb and Zn in the gas/ash phase.

Biochemical methane potential from sewage sludge: Effect of an aerobic pretreatment and fly ash addition as source of trace elements

2017 ◽  
Vol 64 ◽  
pp. 140-148 ◽  
Author(s):  
César Huiliñir ◽  
Paula Pinto-Villegas ◽  
Alejandra Castillo ◽  
Silvio Montalvo ◽  
Lorna Guerrero
Keyword(s):  
Trace Elements ◽  
Fly Ash ◽  
Sewage Sludge ◽  
Biochemical Methane Potential ◽  
Methane Potential

Modelling Trace Element Emissions in Co-Gasification of Sewage Sludge With Coal

2002 ◽  
Author(s):  
G. P. Reed ◽  
D. R. Dugwell ◽  
R. Kandiyoti
Keyword(s):  
Experimental Data ◽  
Trace Elements ◽  
Sewage Sludge ◽  
Trace Element ◽  
Energy Recovery ◽  
Pilot Scale ◽  
Gaseous Species ◽  
Fuel Gas ◽  
Gas Cleaning ◽  
Hot Gas

Gasification has attracted considerable interest from water utilities as a sewage sludge disposal option, with the advantages of waste volume reduction, pathogen destruction and energy recovery. Co-gasification with coal in a larger plant (>10 MWt) employing a gas turbine for energy recovery may reduce the risk and cost of this option. However, controlling the release of trace elements such as Pb and Zn in the gas produced may be necessary to avoid corrosion, and to meet environmental requirements. A thermodynamic equilibrium model has been used to make predictions of the speciation of trace elements in the fuel gas from co-gasification of sewage sludge with coal. Experimental data from a pilot scale 2 MWt sewage sludge/coal co-gasification plant with a hot gas filter was used to test the validity of these predictions. No significant amount of Be, Co, Cu, V and Zn was predicted to be in the form of gaseous phase species, and this was confirmed by the experimental data. On the other hand, Hg and Se were predicted to be only present in gas phase species, and this was also confirmed experimentally. The elements As, B, Cd, Pb, Sb and Sn were all predicted to form a larger amount of gaseous species than was observed in the experimental measurements. Refinement of the predictions for As and B by inclusion of specific minor/trace element interactions with Ni and Ca respectively gave a better agreement with the experimental data. Whilst the experimentally-observed lowering of Pb emissions by reduction of the gas cleaning temperature from 580 °C to 450 °C was qualitatively predicted, the concentration of Pb in the fine dust removed by the hot gas filter indicates condensation at higher temperatures than predicted. The absence of thermodynamic data for the more complex minerals and adsorbed species that may be formed is thought to account for some of these differences.

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