Environmental impact and occupational risk in gasification plants processing residues of sewage sludge and refuse-derived fuel: a review

Octávio Alves, Margarida Gonçalves, Paulo Brito, Eliseu Monteiro, Celeste Jacinto

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Abstract

Scope & Goals: This article reviews recent scientific reports on environmental impact, as well as occupational safety and health, of gasification plants using residues of sewage sludge and refuse-derived fuel. Methods: The survey, covering a 10-year time span, was made through a typical systematic review of the literature, retrieved from online databases of scientific publications and by using general search engines; cross-referencing of citations included in documents was also considered. Results: Two tables summarising 38 publications were created, indicating relevant studies on the selected topics and providing a short description on risks, goals and main findings of each study, followed by a general discussion. Conclusions: Overall, gas explosion and inhalation of toxic gases were the most common risks reported in published studies, being considered negligible if safety measures are adopted; however there are fewer studies focusing on occupational safety in gasification plants than those focused on environmental hazards. Release of heavy metals, tar production and toxic gases are the main environmental concerns. From the prevention viewpoint, this review shows that treatment and valorisation of harmful tars is key feature that must be improved in the future to enable a sustainable development of this technology at a commercial scale.
Original languageEnglish
Pages (from-to)50-63
JournalInternational Journal of Occupational and Environmental Safety
Volume2
Issue number2
DOIs
Publication statusPublished - 12 Oct 2018

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Occupational risks
Refuse derived fuels
Sewage sludge
Gasification
Environmental impact
environmental impact
Tar
Processing
Gases
gas
plant residue
environmental hazard
tar
Search engines
Heavy metals
Explosions
Sustainable development
explosion
Hazards
engine

Keywords

  • Gasification
  • Occupational risk
  • Environmental impact
  • Sewage sludge
  • Refuse-derived fuel
  • RDF

Cite this

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title = "Environmental impact and occupational risk in gasification plants processing residues of sewage sludge and refuse-derived fuel: a review",
abstract = "Scope & Goals: This article reviews recent scientific reports on environmental impact, as well as occupational safety and health, of gasification plants using residues of sewage sludge and refuse-derived fuel. Methods: The survey, covering a 10-year time span, was made through a typical systematic review of the literature, retrieved from online databases of scientific publications and by using general search engines; cross-referencing of citations included in documents was also considered. Results: Two tables summarising 38 publications were created, indicating relevant studies on the selected topics and providing a short description on risks, goals and main findings of each study, followed by a general discussion. Conclusions: Overall, gas explosion and inhalation of toxic gases were the most common risks reported in published studies, being considered negligible if safety measures are adopted; however there are fewer studies focusing on occupational safety in gasification plants than those focused on environmental hazards. Release of heavy metals, tar production and toxic gases are the main environmental concerns. From the prevention viewpoint, this review shows that treatment and valorisation of harmful tars is key feature that must be improved in the future to enable a sustainable development of this technology at a commercial scale.",
keywords = "Gasification, Occupational risk, Environmental impact, Sewage sludge, Refuse-derived fuel, RDF",
author = "Oct{\'a}vio Alves and Margarida Gon{\cc}alves and Paulo Brito and Eliseu Monteiro and Celeste Jacinto",
note = "info:eu-repo/grantAgreement/FCT/SFRH/BD/111956/2015/PT# The authors acknowledge financial support provided by Funda{\cc}{\~a}o para a Ci{\^e}ncia e Tecnologia from Minist{\'e}rio da Ci{\^e}ncia, Tecnologia e Ensino Superior (grant no. SFRH/BD/111956/2015), cofinanced by Programa Operacional Potencial Humano and Uni{\~a}o Europeia-Fundo Social Europeu.",
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T1 - Environmental impact and occupational risk in gasification plants processing residues of sewage sludge and refuse-derived fuel: a review

AU - Alves, Octávio

AU - Gonçalves, Margarida

AU - Brito, Paulo

AU - Monteiro, Eliseu

AU - Jacinto, Celeste

N1 - info:eu-repo/grantAgreement/FCT/SFRH/BD/111956/2015/PT# The authors acknowledge financial support provided by Fundação para a Ciência e Tecnologia from Ministério da Ciência, Tecnologia e Ensino Superior (grant no. SFRH/BD/111956/2015), cofinanced by Programa Operacional Potencial Humano and União Europeia-Fundo Social Europeu.

PY - 2018/10/12

Y1 - 2018/10/12

N2 - Scope & Goals: This article reviews recent scientific reports on environmental impact, as well as occupational safety and health, of gasification plants using residues of sewage sludge and refuse-derived fuel. Methods: The survey, covering a 10-year time span, was made through a typical systematic review of the literature, retrieved from online databases of scientific publications and by using general search engines; cross-referencing of citations included in documents was also considered. Results: Two tables summarising 38 publications were created, indicating relevant studies on the selected topics and providing a short description on risks, goals and main findings of each study, followed by a general discussion. Conclusions: Overall, gas explosion and inhalation of toxic gases were the most common risks reported in published studies, being considered negligible if safety measures are adopted; however there are fewer studies focusing on occupational safety in gasification plants than those focused on environmental hazards. Release of heavy metals, tar production and toxic gases are the main environmental concerns. From the prevention viewpoint, this review shows that treatment and valorisation of harmful tars is key feature that must be improved in the future to enable a sustainable development of this technology at a commercial scale.

AB - Scope & Goals: This article reviews recent scientific reports on environmental impact, as well as occupational safety and health, of gasification plants using residues of sewage sludge and refuse-derived fuel. Methods: The survey, covering a 10-year time span, was made through a typical systematic review of the literature, retrieved from online databases of scientific publications and by using general search engines; cross-referencing of citations included in documents was also considered. Results: Two tables summarising 38 publications were created, indicating relevant studies on the selected topics and providing a short description on risks, goals and main findings of each study, followed by a general discussion. Conclusions: Overall, gas explosion and inhalation of toxic gases were the most common risks reported in published studies, being considered negligible if safety measures are adopted; however there are fewer studies focusing on occupational safety in gasification plants than those focused on environmental hazards. Release of heavy metals, tar production and toxic gases are the main environmental concerns. From the prevention viewpoint, this review shows that treatment and valorisation of harmful tars is key feature that must be improved in the future to enable a sustainable development of this technology at a commercial scale.

KW - Gasification

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KW - Environmental impact

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