Bioplastic’s Valorisation by Anaerobic Co-Digestion with WWTP Mixed Sludge DOI Open Access
María Lera, J.A. de Ferrer,

L. Borrás

et al.

Water, Journal Year: 2024, Volume and Issue: 16(22), P. 3293 - 3293

Published: Nov. 16, 2024

Bioplastics are designed to degrade at the end of their lifecycle, but effective management end-of-life phase and integration into existing organic waste systems remain significant challenges. Some bioplastics decompose under anaerobic conditions, with digestion (AD) process being a potential solution for disposal. AD is promising technology valorising wastes, enabling biomethane production, reducing carbon footprints, promoting product circularity. This study focuses on evaluating continuous co-digestion mixed sludge from an urban wastewater treatment plant (WWTP). Polyhydroxybutyrate (PHB) was selected bioplastic, as various studies have reported its high rapid degradation mesophilic conditions. PHB’s biodegradability typical WWTP conditions (35 °C, 20-day retention time) assessed in batch tests results indicate that PHB ranged 68 75%, depending particle size. To further explore valorisation, feasibility tested laboratory scale using two digesters: conventional digester (CSTR) membrane bioreactor (AnMBR). The indicated complete PHB, which led higher biomethanisation percentages both digesters, rising 58% 70% AnMBR 44% 72% CSTR. notable increase observed CSTR attributed changes microbial populations improved biodegradability.

Language: Английский

Experimental study on the establishment of independent enhanced biological phosphorus removal system based on immobilized fillers for wastewater nitrogen removal DOI
Wenhao Chen,

Hong Yang,

Xiaotong Wang

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 106917 - 106917

Published: Jan. 5, 2025

Language: Английский

Citations

0
Integrated process of Tetrasphaera-dominated enhanced biological phosphorus removal and sulfur autotrophic denitrification in a single reactor to treat VFAs-free wastewater: Feasibility, performance and mechanism DOI
Hongjun Liu, Wei Zeng,

Gangxin Chen

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 74, P. 107812 - 107812

Published: May 1, 2025

Language: Английский

Citations

0
Sodium disilicate pretreatment enhancing methane production from anaerobic digestion of waste activated sludge DOI

Yu Zhang,

Shushan Hu,

Jinze Li

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154354 - 154354

Published: July 29, 2024

Language: Английский

Citations

2
Integrated process of Tetrasphaera-dominated in-situ waste activated sludge fermentation, biological phosphorus removal and endogenous denitrification in single reactor for treatment of wastewater with limited carbon sources DOI
Hongjun Liu, Wei Zeng, Wu Lei

et al.

Bioresource Technology, Journal Year: 2024, Volume and Issue: 412, P. 131392 - 131392

Published: Aug. 30, 2024

Language: Английский

Citations

1
Effects of magnesium hydroxide nanoparticles on black-odorous sediment properties and indigenous bacterial communities: Implications for remediation strategies DOI
Dong Xia, Chaoyu Chen,

X.J. Mou

et al.

Journal of Soils and Sediments, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 26, 2024

Language: Английский

Citations

0
Bioplastic’s Valorisation by Anaerobic Co-Digestion with WWTP Mixed Sludge DOI Open Access
María Lera, J.A. de Ferrer,

L. Borrás

et al.

Water, Journal Year: 2024, Volume and Issue: 16(22), P. 3293 - 3293

Published: Nov. 16, 2024

Bioplastics are designed to degrade at the end of their lifecycle, but effective management end-of-life phase and integration into existing organic waste systems remain significant challenges. Some bioplastics decompose under anaerobic conditions, with digestion (AD) process being a potential solution for disposal. AD is promising technology valorising wastes, enabling biomethane production, reducing carbon footprints, promoting product circularity. This study focuses on evaluating continuous co-digestion mixed sludge from an urban wastewater treatment plant (WWTP). Polyhydroxybutyrate (PHB) was selected bioplastic, as various studies have reported its high rapid degradation mesophilic conditions. PHB’s biodegradability typical WWTP conditions (35 °C, 20-day retention time) assessed in batch tests results indicate that PHB ranged 68 75%, depending particle size. To further explore valorisation, feasibility tested laboratory scale using two digesters: conventional digester (CSTR) membrane bioreactor (AnMBR). The indicated complete PHB, which led higher biomethanisation percentages both digesters, rising 58% 70% AnMBR 44% 72% CSTR. notable increase observed CSTR attributed changes microbial populations improved biodegradability.

Language: Английский

Citations

0