Post-treatment options for anaerobically digested sludge: Current status and future prospect

Z Wang, T Liu, H Duan, Y Song, X Lu, S Hu, Z Yuan… - Water Research, 2021 - Elsevier
Anaerobic digestion is the most commonly used sludge treatment technology in large-scale
wastewater treatment plants (WWTPs), generating two main products, ie, biogas and …

Vivianite as the main phosphate mineral in digested sewage sludge and its role for phosphate recovery

P Wilfert, AI Dugulan, K Goubitz, L Korving, GJ Witkamp… - Water research, 2018 - Elsevier
Phosphate recovery from sewage sludge is essential in a circular economy. Currently, the
main focus in centralized municipal wastewater treatment plants (MWTPs) lies on struvite …

A critical review of prospects and operational challenges of microaeration and iron dosing for in-situ biogas desulfurization

SMM Azizi, BS Zakaria, N Haffiez, P Niknejad… - Bioresource Technology …, 2022 - Elsevier
Anaerobic digestion is a widely used waste valorization method that produces methane-rich
biogas. Notably, biogas upgrading to renewable natural gas has attracted considerable …

Unravelling key factors controlling vivianite formation during anaerobic digestion of waste activated sludge

X Hao, W Yu, T Yuan, Y Wu, MCM van Loosdrecht - Water Research, 2022 - Elsevier
As a product of phosphorous recovery from anaerobic digestion (AD) of waste activated
sludge (WAS), vivianite has received increasing attention. However, key factors controlling …

Spatial variation in dissolved phosphorus and interactions with arsenic in response to changing redox conditions in floodplain aquifers of the Hetao Basin, Inner …

Y Li, C Yu, B Zhao, D Chen, H Ye, C Nagel, W Shao… - Water Research, 2022 - Elsevier
Increasing numbers of studies have reported groundwater with naturally high phosphorous
(P) and arsenic (As) concentrations, which can potentially threaten the environment and …

[HTML][HTML] Phosphorus recovery alternatives for sludge from chemical phosphorus removal processes–Technology comparison and system limitations

JU Kaljunen, RA Al-Juboori, W Khunjar… - Sustainable Materials …, 2022 - Elsevier
Several approaches have recently been proposed in the literature for P recovery after metal
precipitation, but a robust comparison of these approaches in a techno-economic framework …

Transformation kinetics of phosphorus and nitrogen in iron-rich sewage sludges during hydrothermal treatment and recovery of nutrients from process water

Q Wang, H Jung, B Wan, P Liu, P Yang… - ACS Sustainable …, 2021 - ACS Publications
Hydrothermal treatment (HT) is an emerging technique for sustainable sewage sludge
management and resource recovery. Many sludges are rich in iron (Fe) due to the common …

Nano-magnetite enhances dissimilated iron reduction to vivianite from sewage by structuring an enormous and compact electron transfer network

J Chang, D Liang, Y Gao, Y Sun, X Wang, NQ Ren… - Water Research, 2025 - Elsevier
Acting as both terminal and conductor of extracellular electron transfer (EET), little studies
were focused on how nano-magnetite participated in the dissimilated iron reduction (DIR) …

Recovery of in-sewer dosed iron from digested sludge at downstream treatment plants and its reuse potential

S Salehin, M Rebosura Jr, J Keller, W Gernjak… - Water Research, 2020 - Elsevier
Iron-based coagulants are dosed in enormous amounts and play an essential role in various
segments of our urban water infrastructure. In order for the water industry to become circular …

[HTML][HTML] Robust magnetic vivianite recovery from digested sewage sludge: Evaluating resilience to sludge dry matter and particle size variations

H Nguyen, T Prot, W Wijdeveld, L Korving, AI Dugulan… - Water Research, 2024 - Elsevier
Phosphorus recovery via vivianite extraction from digested sludge has recently gained
considerable interest. The separation of vivianite was demonstrated earlier at the pilot scale …