Impact of compost process temperature on organic micro-pollutant degradation

Yumna Sadef; Tjalfe Gorm Poulsen; Kai Bester

doi:10.1016/j.scitotenv.2014.07.003

Impact of compost process temperature on organic micro-pollutant degradation

Yumna Sadef^*, Tjalfe Gorm Poulsen, Kai Bester

^*Corresponding author for this work

Department of Civil Engineering

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Aerobic composting has gained considerable attention because of its ability to remove organic micro-pollutants. Compost process temperature is a key parameter controlling degradation rate. Impact of process temperature on removal of 15 key organic micro-pollutants often found in sewage sludge (including two metabolites) during sewage sludge composting was investigated at 18-70. °C over 52. days. Removal rates generally depended strongly on temperature and for all compounds an optimal temperature for removal was observed. Optimal temperatures for the 13 parent compounds ranged from 25 to 70. °C and relative removal of the 13 parent compounds was as high as 99% across all combinations of compound and temperature with an average removal of 66%. The two metabolites were both formed and removed during the course of composting and the data indicated that metabolites may very well have other optimal removal temperatures than their parent compounds.

Original language	English
Pages (from-to)	306-312
Number of pages	7
Journal	Science of the Total Environment
Volume	494-495
DOIs	https://doi.org/10.1016/j.scitotenv.2014.07.003
Publication status	Published - 1 Oct 2014

Keywords

Aerobic composting
Biomass remediation
Metabolite fate
Optimal temperature
Sewage sludge

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10.1016/j.scitotenv.2014.07.003

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title = "Impact of compost process temperature on organic micro-pollutant degradation",

abstract = "Aerobic composting has gained considerable attention because of its ability to remove organic micro-pollutants. Compost process temperature is a key parameter controlling degradation rate. Impact of process temperature on removal of 15 key organic micro-pollutants often found in sewage sludge (including two metabolites) during sewage sludge composting was investigated at 18-70. °C over 52. days. Removal rates generally depended strongly on temperature and for all compounds an optimal temperature for removal was observed. Optimal temperatures for the 13 parent compounds ranged from 25 to 70. °C and relative removal of the 13 parent compounds was as high as 99% across all combinations of compound and temperature with an average removal of 66%. The two metabolites were both formed and removed during the course of composting and the data indicated that metabolites may very well have other optimal removal temperatures than their parent compounds.",

keywords = "Aerobic composting, Biomass remediation, Metabolite fate, Optimal temperature, Sewage sludge",

author = "Yumna Sadef and Poulsen, {Tjalfe Gorm} and Kai Bester",

note = "Funding Information: The authors acknowledge Komtek A/S for supplying the compost used in study. The lead author acknowledges the University of the Punjab for awarding the scholarship for her PhD studies of which this study is part. The authors also wish to thank the lab technicians Helle Blendstrup (Aalborg University), Charlotte Dahl Schi{\o}dt and Birgit Groth (Aarhus University) for their help. Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

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doi = "10.1016/j.scitotenv.2014.07.003",

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AU - Sadef, Yumna

AU - Poulsen, Tjalfe Gorm

AU - Bester, Kai

N1 - Funding Information: The authors acknowledge Komtek A/S for supplying the compost used in study. The lead author acknowledges the University of the Punjab for awarding the scholarship for her PhD studies of which this study is part. The authors also wish to thank the lab technicians Helle Blendstrup (Aalborg University), Charlotte Dahl Schiødt and Birgit Groth (Aarhus University) for their help. Publisher Copyright: © 2014 Elsevier B.V.

PY - 2014/10/1

Y1 - 2014/10/1

N2 - Aerobic composting has gained considerable attention because of its ability to remove organic micro-pollutants. Compost process temperature is a key parameter controlling degradation rate. Impact of process temperature on removal of 15 key organic micro-pollutants often found in sewage sludge (including two metabolites) during sewage sludge composting was investigated at 18-70. °C over 52. days. Removal rates generally depended strongly on temperature and for all compounds an optimal temperature for removal was observed. Optimal temperatures for the 13 parent compounds ranged from 25 to 70. °C and relative removal of the 13 parent compounds was as high as 99% across all combinations of compound and temperature with an average removal of 66%. The two metabolites were both formed and removed during the course of composting and the data indicated that metabolites may very well have other optimal removal temperatures than their parent compounds.

AB - Aerobic composting has gained considerable attention because of its ability to remove organic micro-pollutants. Compost process temperature is a key parameter controlling degradation rate. Impact of process temperature on removal of 15 key organic micro-pollutants often found in sewage sludge (including two metabolites) during sewage sludge composting was investigated at 18-70. °C over 52. days. Removal rates generally depended strongly on temperature and for all compounds an optimal temperature for removal was observed. Optimal temperatures for the 13 parent compounds ranged from 25 to 70. °C and relative removal of the 13 parent compounds was as high as 99% across all combinations of compound and temperature with an average removal of 66%. The two metabolites were both formed and removed during the course of composting and the data indicated that metabolites may very well have other optimal removal temperatures than their parent compounds.

KW - Aerobic composting

KW - Biomass remediation

KW - Metabolite fate

KW - Optimal temperature

KW - Sewage sludge

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DO - 10.1016/j.scitotenv.2014.07.003

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AN - SCOPUS:84904744011

SN - 0048-9697

VL - 494-495

SP - 306

EP - 312

JO - Science of the Total Environment

JF - Science of the Total Environment

ER -

Impact of compost process temperature on organic micro-pollutant degradation

Abstract

Keywords

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