Print Email Facebook Twitter Insight on how biopolymers recovered from aerobic granular wastewater sludge can reduce the flammability of synthetic polymers Title Insight on how biopolymers recovered from aerobic granular wastewater sludge can reduce the flammability of synthetic polymers Author Kim, Nam Kyeun (The University of Auckland) Lin, Richard (The University of Auckland) Bhattacharyya, Debes (The University of Auckland) van Loosdrecht, Mark C.M. (TU Delft BT/Environmental Biotechnology) Lin, Y. (TU Delft BT/Environmental Biotechnology) Date 2022 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. Subject BiomaterialsExtracellular polymeric substancesFlame retardantsPhosphorusWastewater sludge management To reference this document use: http://resolver.tudelft.nl/uuid:27439387-7f17-4f24-a009-dc8c3cf690db DOI https://doi.org/10.1016/j.scitotenv.2021.150434 Embargo date 2023-07-01 ISSN 0048-9697 Source Science of the Total Environment, 805 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. Part of collection Institutional Repository Document type journal article Rights © 2022 Nam Kyeun Kim, Richard Lin, Debes Bhattacharyya, Mark C.M. van Loosdrecht, Y. Lin Files PDF 1_s2.0_S004896972105511X_main.pdf 1.74 MB Close viewer /islandora/object/uuid:27439387-7f17-4f24-a009-dc8c3cf690db/datastream/OBJ/view