Critical review on dewatering of sewage sludge: Influential mechanism, conditioning technologies and implications to sludge re-utilizations

B Wu, X Dai, X Chai - Water research, 2020 - Elsevier
Abstracts Sewage sludge (mainly composed of excessive bio-sludge) is an inevitable by-
product of biological wastewater treatment process and contains various toxic substances …

Coagulation/flocculation in dewatering of sludge: a review

H Wei, B Gao, J Ren, A Li, H Yang - Water research, 2018 - Elsevier
Sludge disposal is an integral part of wastewater treatment systems, and its cost usually
accounts for more than half of the total operation cost. Sludge disposal technology is facing …

Progress of improving waste activated sludge dewaterability: Influence factors, conditioning technologies and implications and perspectives

H Yuan, N Zhu - Science of The Total Environment, 2024 - Elsevier
Large amounts of waste activated sludge (WAS) as a by-product generated from the
biological treatment in wastewater treatment plants (WWTPs) is of high moisture content …

Occurrence state and molecular structure analysis of extracellular proteins with implications on the dewaterability of waste-activated sludge

B Wu, BJ Ni, K Horvat, L Song, X Chai… - … science & technology, 2017 - ACS Publications
The occurrence state and molecular structure of extracellular proteins were analyzed to
reveal the influencing factors on the water-holding capacities of protein-like substances in …

Enhancement of waste activated sludge dewaterability by ultrasound-activated persulfate oxidation: operation condition, sludge properties, and mechanisms

C Bian, D Ge, G Wang, Y Dong, W Li, N Zhu, H Yuan - Chemosphere, 2021 - Elsevier
The study proposed the ultrasound-activated persulfate oxidation as a novel approach to
enhance sludge dewaterability. The results demonstrated that the reduction of water content …

Positive feedback on dewaterability of waste-activated sludge by the conditioning process of Fe (II) catalyzing urea hydrogen peroxide

D Wang, C Pan, L Chen, D He, L Yuan, Y Li, Y Wu - Water Research, 2022 - Elsevier
The treatment and disposal of sludge is a complex environmental problem because of the
high moisture content. Herein, We reported the process of Fe (II) activating Urea hydrogen …

Chloride removal from flue gas desulfurization wastewater through Friedel's salt precipitation method: A review

X Liu, H Zhang, X Zhang, Y Yang, C Yang… - Science of the Total …, 2023 - Elsevier
As a high efficiency method for chloride removal, Friedel's salt precipitation (FSP) method
has attracted much attention in zero liquid discharge (ZLD) of flue gas desulfurization (FGD) …

Recent advances in sludge dewatering and drying technology

B Rao, G Wang, P Xu - Drying Technology, 2022 - Taylor & Francis
Sewage sludge is an inevitable by-product of biological wastewater treatment process and
contains various toxic substances such as pathogens, heavy metals and organic …

Influential mechanism of water occurrence states of waste-activated sludge: specifically focusing on the roles of EPS micro-spatial distribution and cation-dominated …

B Wu, H Wang, X Dai, X Chai - Water Research, 2021 - Elsevier
The highly hydrated colloidal structure of waste-activated sludge (WAS) is the main obstacle
of enhanced dewatering for sludge volume minimization. Extracellular polymeric substances …