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BibTeX
Biochar from slow pyrolysis of biological sludge from wastewater treatment: characteristics and effect as soil amendment
Biofuels, bioproducts and biorefining, 2021-07, Vol.15 (4), p.1054-1072
Vilas‐Boas, Ana C M
Tarelho, Luís A C
Kamali, Mohammadreza
Hauschild, Tailane
Pio, Daniel T
Jahanianfard, Dina
Gomes, Ana Paula D
Matos, Manuel A A
2021
Details
Autor(en) / Beteiligte
Vilas‐Boas, Ana C M
Tarelho, Luís A C
Kamali, Mohammadreza
Hauschild, Tailane
Pio, Daniel T
Jahanianfard, Dina
Gomes, Ana Paula D
Matos, Manuel A A
Titel
Biochar from slow pyrolysis of biological sludge from wastewater treatment: characteristics and effect as soil amendment
Ist Teil von
Biofuels, bioproducts and biorefining, 2021-07, Vol.15 (4), p.1054-1072
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2021
Link zum Volltext
Quelle
Wiley Online Library - AutoHoldings Journals
Beschreibungen/Notizen
Biological sludge from wastewater treatment is a by‐product from the pulp and paper industry, for which several management approaches are being researched to develop added‐value applications and to decrease the disposal costs. This work studied biological sludge pyrolysis to produce biochar for further use as soil amendment. The pyrolysis was conducted in a bench‐scale fixed‐bed reactor using distinct operating conditions, namely heating rate between 2 °C min−1 and 30 °C min−1 and peak temperature between 300 °C and 600 °C. The results demonstrated that biochar yield was between 0.40 and 0.73 kg kg–1 dry sludge. A trend for biochar yield to decrease with increasing peak temperature and heating rate was observed. The carbon content of biochar was between 42.8 and 47.0 wt%. The biochar pH was between 6.9 and 11.2. The effect of the biochar produced by pyrolysis as a soil corrective was evaluated in this work. Samples of biochar produced at 450 °C and 10 °C min−1 were incubated in a selected soil and its influence on soil properties and plant growth was evaluated. It was observed that the biochar portion 2.5%, 5%, and 10% promoted an increase in soil pH and an increase in water retention. The biochar portion 2.5% and 5% promoted a higher growth of Lepidium sativum plants. The results demonstrated the potential of the pyrolysis of biological sludge from the pulp and paper industry to produce biochar to be further used as a soil amendment. This strategy is of major importance in this industrial sector, thus contributing to the European Union goals on circular economy and industrial sustainability. © 2021 Society of Industrial Chemistry and John Wiley & Sons Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 1932-104X
eISSN: 1932-1031
DOI: 10.1002/bbb.2220
Titel-ID: cdi_proquest_journals_2546948819
Format
–
Schlagworte
biochar
,
Biological effects
,
biological sludge
,
Carbon content
,
Charcoal
,
Heating
,
Heating rate
,
operation condition
,
pH effects
,
Plant growth
,
Pulp
,
Pulp & paper industry
,
Pyrolysis
,
Sludge
,
Sludge drying
,
Soil amendment
,
Soil chemistry
,
Soil pH
,
Soil properties
,
Soils
,
Sustainability
,
Temperature
,
Wastewater treatment
,
Water treatment
,
Yields
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