Insight on how biopolymers recovered from aerobic granular wastewater sludge can reduce the flammability of synthetic polymers

Nam Kyeun Kim; Richard Lin; Debes Bhattacharyya; Mark C.M. van Loosdrecht; Yuemei Lin

doi:10.1016/j.scitotenv.2021.150434

Insight on how biopolymers recovered from aerobic granular wastewater sludge can reduce the flammability of synthetic polymers

Nam Kyeun Kim^*, Richard Lin, Debes Bhattacharyya, Mark C.M. van Loosdrecht, Yuemei Lin

^*Corresponding author for this work

BT/Environmental Biotechnology

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

5 Citations (Scopus)

Abstract

Eco-friendly flame retardants are greatly required to meet the expectations of low-toxicity, environmental compatibility and sustainability. Extracellular polymeric substances (EPS), the biopolymers recovered from excess granular wastewater sludge, have been successfully incorporated into poly(vinyl alcohol) (PVA) by a solution casting method. Self-extinguishment of EPS was observed in a vertical burn test. Positive effects of EPS on the reduction of heat release rate and CO emission of EPS/PVA composites were also demonstrated. The presence of various types of phosphates was detected in the EPS and a possible flame-retardant mechanism has been proposed. The investigation of using granular sludge EPS to reduce the flammability of synthetic polymers may open the possibility of converting wastewater sludge into bio phosphorus-based flame retardants.

Original language	English
Article number	150434
Number of pages	7
Journal	Science of the Total Environment
Volume	805
DOIs	https://doi.org/10.1016/j.scitotenv.2021.150434
Publication status	Published - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Biomaterials
Extracellular polymeric substances
Flame retardants
Phosphorus
Wastewater sludge management

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10.1016/j.scitotenv.2021.150434

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@article{274393877f174f24a009dc8c3cf690db,

title = "Insight on how biopolymers recovered from aerobic granular wastewater sludge can reduce the flammability of synthetic polymers",

abstract = "Eco-friendly flame retardants are greatly required to meet the expectations of low-toxicity, environmental compatibility and sustainability. Extracellular polymeric substances (EPS), the biopolymers recovered from excess granular wastewater sludge, have been successfully incorporated into poly(vinyl alcohol) (PVA) by a solution casting method. Self-extinguishment of EPS was observed in a vertical burn test. Positive effects of EPS on the reduction of heat release rate and CO emission of EPS/PVA composites were also demonstrated. The presence of various types of phosphates was detected in the EPS and a possible flame-retardant mechanism has been proposed. The investigation of using granular sludge EPS to reduce the flammability of synthetic polymers may open the possibility of converting wastewater sludge into bio phosphorus-based flame retardants.",

keywords = "Biomaterials, Extracellular polymeric substances, Flame retardants, Phosphorus, Wastewater sludge management",

author = "Kim, {Nam Kyeun} and Richard Lin and Debes Bhattacharyya and {van Loosdrecht}, {Mark C.M.} and Yuemei Lin",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.",

year = "2022",

doi = "10.1016/j.scitotenv.2021.150434",

language = "English",

volume = "805",

journal = "Science of the Total Environment",

issn = "0048-9697",

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TY - JOUR

T1 - Insight on how biopolymers recovered from aerobic granular wastewater sludge can reduce the flammability of synthetic polymers

AU - Kim, Nam Kyeun

AU - Lin, Richard

AU - Bhattacharyya, Debes

AU - van Loosdrecht, Mark C.M.

AU - Lin, Yuemei

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

Y1 - 2022

N2 - Eco-friendly flame retardants are greatly required to meet the expectations of low-toxicity, environmental compatibility and sustainability. Extracellular polymeric substances (EPS), the biopolymers recovered from excess granular wastewater sludge, have been successfully incorporated into poly(vinyl alcohol) (PVA) by a solution casting method. Self-extinguishment of EPS was observed in a vertical burn test. Positive effects of EPS on the reduction of heat release rate and CO emission of EPS/PVA composites were also demonstrated. The presence of various types of phosphates was detected in the EPS and a possible flame-retardant mechanism has been proposed. The investigation of using granular sludge EPS to reduce the flammability of synthetic polymers may open the possibility of converting wastewater sludge into bio phosphorus-based flame retardants.

AB - Eco-friendly flame retardants are greatly required to meet the expectations of low-toxicity, environmental compatibility and sustainability. Extracellular polymeric substances (EPS), the biopolymers recovered from excess granular wastewater sludge, have been successfully incorporated into poly(vinyl alcohol) (PVA) by a solution casting method. Self-extinguishment of EPS was observed in a vertical burn test. Positive effects of EPS on the reduction of heat release rate and CO emission of EPS/PVA composites were also demonstrated. The presence of various types of phosphates was detected in the EPS and a possible flame-retardant mechanism has been proposed. The investigation of using granular sludge EPS to reduce the flammability of synthetic polymers may open the possibility of converting wastewater sludge into bio phosphorus-based flame retardants.

KW - Biomaterials

KW - Extracellular polymeric substances

KW - Flame retardants

KW - Phosphorus

KW - Wastewater sludge management

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U2 - 10.1016/j.scitotenv.2021.150434

DO - 10.1016/j.scitotenv.2021.150434

M3 - Article

AN - SCOPUS:85115336327

VL - 805

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 150434

ER -

Insight on how biopolymers recovered from aerobic granular wastewater sludge can reduce the flammability of synthetic polymers

Abstract

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Keywords

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