Biochar from pyrolysis of deinking paper sludge and its use in the remediation of Zn-polluted soils

Paz-Ferreiro, J, Plasencia, P, Gasco, G and Mendez, A 2017, 'Biochar from pyrolysis of deinking paper sludge and its use in the remediation of Zn-polluted soils', Land Degradation and Development, vol. 28, no. 1, pp. 355-360.


Document type: Journal Article
Collection: Journal Articles

Title Biochar from pyrolysis of deinking paper sludge and its use in the remediation of Zn-polluted soils
Author(s) Paz-Ferreiro, J
Plasencia, P
Gasco, G
Mendez, A
Year 2017
Journal name Land Degradation and Development
Volume number 28
Issue number 1
Start page 355
End page 360
Total pages 6
Publisher John Wiley and Sons
Abstract An increasing proportion of recycled fibres are used in paper industries. Removing the ink, clay, coatings and contaminants from paper waste in order to produce recycled fibres creates large amounts of deinking paper sludges. The preparation of biochar from pyrolysis of this waste and its use in soil remediation contaminated with heavy metals could be an interesting valorization alternative. Our aim was to study the influence of biochar from deinking paper sludge (HP) pyrolysis in the treatment of Zn-polluted soils. Three different soils contaminated with 2000 mg Zn kg-1 were amended at a rate of 10% with deinking paper sludge and deinking paper sludge biochar prepared at three different temperatures (300, 400 and 500 °C). Soils were incubated under laboratory conditions, and soluble Zn was measured. The addition of biochar reduced the amount of mobile Zn. Finally, Zn solubility decrease was more pronounced for biochars prepared at a higher temperature.
Subject Environmental Engineering not elsewhere classified
Environmental Science and Management not elsewhere classified
Keyword(s) biochar
deinking paper sludge
zinc
DOI - identifier 10.1002/ldr.2597
Copyright notice © 2016 John Wiley and Sons
ISSN 1085-3278
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