Results 11 to 20 of about 93,276 (264)

BIOMASS CORROSIVENESS PREDICTION BY CHEMICAL FRACTIONATION [PDF]

open access: yesProceedings on Engineering Sciences
The use of biomass as fuel is growing rapidly due to its advantages of CO2 neutrality and renewability. However, low-quality fuels can include considerable concentrations of ash-forming elements that negatively affect boiler operation.
MªLuisa Contreras   +2 more
doaj   +1 more source

Pyrolysis of Municipal Sewage Sludge to Investigate Char and Phosphorous Yield together with Heavy-Metal Removal—Experimental and by Thermodynamic Calculations

open access: yesEnergies, 2021
Sewage sludge is regarded as a potential source for soil fertilizer However, the direct utilization of sewage sludge in agricultural land is restricted since it also contains heavy metals, pathogens, and toxic compounds.
Naeimeh Vali   +4 more
doaj   +1 more source

Monitoring and Evaluation of Terni (Central Italy) Air Quality through Spatially Resolved Analyses

open access: yesAtmosphere, 2017
A study of spatial variability of PM10 elemental components was conducted in Terni city (Central Italy), situated in an intramountain depression characterized by the presence of several particulate matter emission sources.
Lorenzo Massimi   +6 more
doaj   +3 more sources

Oxidizable fractions of soil organic carbon in Caatinga forest submitted to different forest managements

open access: yesCiência Rural, 2018
: One of the main alternatives for the rational exploitation of the Caatinga biome’s natural resources is sustainable forest management. Soil organic carbon (SOC) and its fractions can be used to evaluate the conservation status of forest ecosystems ...
Suellen Gomes Monteiro Batista   +4 more
doaj   +1 more source

Chemical fractionation and abundances in coronal plasma [PDF]

open access: yesAdvances in Space Research, 2003
10 pages, 4 figures, to appear in Adv.Sp ...
openaire   +2 more sources

Pollution characteristics and ecological risk assessment of heavy metals in the surface sediments from a source water reservoir

open access: yesChemical Speciation & Bioavailability, 2016
Surface sediment samples were collected from a source water reservoir in Zhejiang Province, East of China to investigate pollution characteristics and potential ecological risk of heavy metals.
Changming Yang   +4 more
doaj   +1 more source

Thermal-chemical Fractionation of Lignocellulosic Biomass

open access: yesEUBCE 2019 Conference Proceedings, 2019
Biomass is a valuable, sustainable feedstock for the production of chemicals and materials, and will play an important role in the transition towards a Sustainable Process Industry. Bio-based products – products wholly or partly derived from materials of biological origin – can make the society more sustainable and lower its dependence on fossil fuels.
Heeres, Hans   +3 more
openaire   +3 more sources

The provenance of selected heavy metals in soils near power plant of Hamedan: A pedological approach

open access: yesمجله آب و خاک, 2014
To determine the origin of heavy metals, the effects of parent materials, soil genesis, and human activities on the content and distribution of selected metals in soils near Mofateh Martyr powerhouse, Hamedan, were assessed.
Sh. Nosratipoor   +3 more
doaj   +1 more source

Chemical Fractionation of Trace Elements in Arctic PM10 Samples

open access: yesAtmosphere, 2021
In this study, the information potential of a two-step sequential extraction procedure was evaluated. For this purpose, first of all the elemental composition of Arctic PM10 samples collected in Ny-Ålesund (Svalbard Islands) from 28 February 2015 to 21 ...
Eleonora Conca   +7 more
doaj   +1 more source

Fractioning of bark of Pinus pinea by milling and chemical characterization of the different fractions [PDF]

open access: yesMaderas. Ciencia y tecnología, 2017
The bark of stone pine (Pinus pinea) from 50 year old trees grown in Portugal was submitted to grinding and fractioning into different particles sizes. The trees had a thick bark with an average 3,7 cm constituted mainly by the periderm and rhytidome (3,2 cm).The bark fractured easily into particles: yield of fines was low, and 74,0% of the particles ...
Miranda, Isabel   +3 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy