Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge
Safe disposal of sewage sludge is one of the most pressing issues in the wastewater treatment cycle: at the European Union level, sludge production is expected to reach 13 Mt by year 2020. Sludge disposal costs may constitute up to, and sometimes above, 50% of the total cost of operation of a WWTP,...
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Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
2018-05-01
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doaj-d41e572c16cb4d879f223aec328657a22020-11-25T01:14:03ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2018-05-0113211410.4136/ambi-agua.2128Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludgeArianna Callegari0Petr Hlavinek1Andrea Giuseppe Capodaglio2Università degli Studi di Pavia, Pavia, ItalyBrno University of Technology, Brno, Czech RepublicUniversità degli Studi di Pavia, Pavia, ItalySafe disposal of sewage sludge is one of the most pressing issues in the wastewater treatment cycle: at the European Union level, sludge production is expected to reach 13 Mt by year 2020. Sludge disposal costs may constitute up to, and sometimes above, 50% of the total cost of operation of a WWTP, and contribute to over 40% of its GHGs emissions. The most common disposal options at the moment are landfilling, disposal in agriculture (about 40% EU-wide), incineration or co-incineration, and use in the industrial production of bricks, asphalts and concrete. Sewage sludge, however, still contains beneficial resources such as nutrients, that can be recovered through specific processes (e.g. precipitation as struvite) and energy, recoverable through a variety of approaches. Microwave-assisted pyrolysis of urban waste sludge was applied for the production of oil, (Syn)gas, and biochar that were afterwards characterized and compared to mainstream alternative fuels (biodiesels) and other material recovery options. Sustainability issues related to the production of biodiesel/biochars from urban wastewater treatment sludge are also discussed. The paper shows that waste urban sludge can indeed be a full component of the urban circular economy by allowing, if properly processed, recovery of energy resources at multiple levels: bio-oils (biodiesel), syngas and bio-char, all having definite advantages for final residues use and disposal. Biodiesel, in particular, allowing energy recovery as liquid fuel, offers a much more flexible and efficient utilization.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2018000200301&lng=en&nrm=iso&tlng=enbiocharbiodieselmaterialsmicrowavespyrolysissustainable energyurban waste sludge |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Arianna Callegari Petr Hlavinek Andrea Giuseppe Capodaglio |
spellingShingle |
Arianna Callegari Petr Hlavinek Andrea Giuseppe Capodaglio Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge Revista Ambiente & Água biochar biodiesel materials microwaves pyrolysis sustainable energy urban waste sludge |
author_facet |
Arianna Callegari Petr Hlavinek Andrea Giuseppe Capodaglio |
author_sort |
Arianna Callegari |
title |
Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge |
title_short |
Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge |
title_full |
Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge |
title_fullStr |
Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge |
title_full_unstemmed |
Production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge |
title_sort |
production of energy (biodiesel) and recovery of materials (biochar) from pyrolysis of urban waste sludge |
publisher |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
series |
Revista Ambiente & Água |
issn |
1980-993X |
publishDate |
2018-05-01 |
description |
Safe disposal of sewage sludge is one of the most pressing issues in the wastewater treatment cycle: at the European Union level, sludge production is expected to reach 13 Mt by year 2020. Sludge disposal costs may constitute up to, and sometimes above, 50% of the total cost of operation of a WWTP, and contribute to over 40% of its GHGs emissions. The most common disposal options at the moment are landfilling, disposal in agriculture (about 40% EU-wide), incineration or co-incineration, and use in the industrial production of bricks, asphalts and concrete. Sewage sludge, however, still contains beneficial resources such as nutrients, that can be recovered through specific processes (e.g. precipitation as struvite) and energy, recoverable through a variety of approaches. Microwave-assisted pyrolysis of urban waste sludge was applied for the production of oil, (Syn)gas, and biochar that were afterwards characterized and compared to mainstream alternative fuels (biodiesels) and other material recovery options. Sustainability issues related to the production of biodiesel/biochars from urban wastewater treatment sludge are also discussed. The paper shows that waste urban sludge can indeed be a full component of the urban circular economy by allowing, if properly processed, recovery of energy resources at multiple levels: bio-oils (biodiesel), syngas and bio-char, all having definite advantages for final residues use and disposal. Biodiesel, in particular, allowing energy recovery as liquid fuel, offers a much more flexible and efficient utilization. |
topic |
biochar biodiesel materials microwaves pyrolysis sustainable energy urban waste sludge |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2018000200301&lng=en&nrm=iso&tlng=en |
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AT ariannacallegari productionofenergybiodieselandrecoveryofmaterialsbiocharfrompyrolysisofurbanwastesludge AT petrhlavinek productionofenergybiodieselandrecoveryofmaterialsbiocharfrompyrolysisofurbanwastesludge AT andreagiuseppecapodaglio productionofenergybiodieselandrecoveryofmaterialsbiocharfrompyrolysisofurbanwastesludge |
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