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Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids

Geraint Sullivan, R.M. Prigmore, P. Knight, Ruth Godfrey Orcid Logo

Journal of Environmental Management, Volume: 251, Start page: 109551

Swansea University Authors: Geraint Sullivan, Ruth Godfrey Orcid Logo

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DOI (Published version): 10.1016/j.jenvman.2019.109551

Abstract

Wastewater (WW) sludge cake is problematic to dispose of with treatment unable to remove organic pollutants. Typical disposal options include landfill or deposition on agricultural land, at considerable expense and environmental impact. Pyrolysis can recycle this waste to biochar however, additional...

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Published in: Journal of Environmental Management
ISSN: 03014797
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa52189
first_indexed 2019-09-30T20:18:52Z
last_indexed 2020-06-19T13:07:36Z
id cronfa52189
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spelling 2020-06-19T12:03:14.9791759 v2 52189 2019-09-30 Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids 3d9d9e2d27827cb652dd719deb20c28a Geraint Sullivan Geraint Sullivan true false b7e381bae1b3f74a3521be56c9b2d2ae 0000-0002-8830-3625 Ruth Godfrey Ruth Godfrey true false 2019-09-30 ONDF Wastewater (WW) sludge cake is problematic to dispose of with treatment unable to remove organic pollutants. Typical disposal options include landfill or deposition on agricultural land, at considerable expense and environmental impact. Pyrolysis can recycle this waste to biochar however, additional unwanted organic pollutants are generated, differing in composition and volume according to the feedstock. These pollutants can be captured in solvent impingers or ‘scrubbers’ to avoid environmental release but lead to alternative waste. Both activated carbon and biochar are proven clean-up methods for organic pollutants with pine wood biochar showing changes in extraction selectivity with preparation temperature. Activated carbon biochar (ACB) from pine wood has also been successfully compared as a substitute at reduced cost and improved efficacy. To our knowledge, ACB from sludge cake has remained untested along with its application to clean-up solvent scrubbers.We have investigated this material from two WW treatment plants (UK and Ghana) as a sorbent, generated at 400 and 700 °C, to minimise contamination of liquids from pyrolysis and, petrochemicals in the event of a spill. This study confirmed the use and selective production of ACB for preferential clean-up of specific pollutants.Despite high temperature pine wood ACB proving most effective in removing petrochemical mixtures (&#62; 76%) extractions of equivalent repeatability and reasonable recovery were achieved with low temperature sludge cake ACB. This re-use of waste sludge cake offers improved thermochemical (recycling) and WW process efficiency, limiting the environmental impact and overall operational costs, minimising waste for disposal. Journal Article Journal of Environmental Management 251 109551 03014797 Activated carbon; Biochar; Recycling; Waste management; Fuels; Gas chromatography-mass spectrometry 14 11 2019 2019-11-14 10.1016/j.jenvman.2019.109551 COLLEGE NANME Other/Subsidiary Companies - Not Defined COLLEGE CODE ONDF Swansea University 2020-06-19T12:03:14.9791759 2019-09-30T14:53:18.5982029 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Geraint Sullivan 1 R.M. Prigmore 2 P. Knight 3 Ruth Godfrey 0000-0002-8830-3625 4
title Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids
spellingShingle Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids
Geraint Sullivan
Ruth Godfrey
title_short Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids
title_full Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids
title_fullStr Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids
title_full_unstemmed Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids
title_sort Activated carbon biochar from municipal waste as a sorptive agent for the removal of polyaromatic hydrocarbons (PAHs), phenols and petroleum based compounds in contaminated liquids
author_id_str_mv 3d9d9e2d27827cb652dd719deb20c28a
b7e381bae1b3f74a3521be56c9b2d2ae
author_id_fullname_str_mv 3d9d9e2d27827cb652dd719deb20c28a_***_Geraint Sullivan
b7e381bae1b3f74a3521be56c9b2d2ae_***_Ruth Godfrey
author Geraint Sullivan
Ruth Godfrey
author2 Geraint Sullivan
R.M. Prigmore
P. Knight
Ruth Godfrey
format Journal article
container_title Journal of Environmental Management
container_volume 251
container_start_page 109551
publishDate 2019
institution Swansea University
issn 03014797
doi_str_mv 10.1016/j.jenvman.2019.109551
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description Wastewater (WW) sludge cake is problematic to dispose of with treatment unable to remove organic pollutants. Typical disposal options include landfill or deposition on agricultural land, at considerable expense and environmental impact. Pyrolysis can recycle this waste to biochar however, additional unwanted organic pollutants are generated, differing in composition and volume according to the feedstock. These pollutants can be captured in solvent impingers or ‘scrubbers’ to avoid environmental release but lead to alternative waste. Both activated carbon and biochar are proven clean-up methods for organic pollutants with pine wood biochar showing changes in extraction selectivity with preparation temperature. Activated carbon biochar (ACB) from pine wood has also been successfully compared as a substitute at reduced cost and improved efficacy. To our knowledge, ACB from sludge cake has remained untested along with its application to clean-up solvent scrubbers.We have investigated this material from two WW treatment plants (UK and Ghana) as a sorbent, generated at 400 and 700 °C, to minimise contamination of liquids from pyrolysis and, petrochemicals in the event of a spill. This study confirmed the use and selective production of ACB for preferential clean-up of specific pollutants.Despite high temperature pine wood ACB proving most effective in removing petrochemical mixtures (&#62; 76%) extractions of equivalent repeatability and reasonable recovery were achieved with low temperature sludge cake ACB. This re-use of waste sludge cake offers improved thermochemical (recycling) and WW process efficiency, limiting the environmental impact and overall operational costs, minimising waste for disposal.
published_date 2019-11-14T13:55:29Z
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score 11.53731

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