Research progress in improving sludge dewaterability: sludge characteristics, chemical conditioning and influencing factors

J Hou, C Hong, W Ling, J Hu, W Feng, Y Xing… - Journal of …, 2024 - Elsevier
Sludge from wastewater treatment processes with high water content and large volume has
become an inevitable issue in environmental management. Due to the challenging …

Investigation of the properties and mechanism of activated sludge in acid-magnetic powder conditioning and vertical pressurized electro-dewatering (AMPED) process

Y Zhang, Z Ling, M Zhao, L Sha, C Li, X Lu - Separation and Purification …, 2024 - Elsevier
Although sludge electro-dewatering is a promising sludge dewatering technology, it
generally requires pre-treatment of sludge to achieve the desired dewatering effect. Herein …

Siderite/PMS conditioning-pressurized vertical electro-osmotic dewatering process for activated sludge volume reduction: evolution of protein secondary structure and …

E Li, Y Wang, D Zhang, X Fan, Z Han, F Yu - Water Research, 2021 - Elsevier
In this study, the siderite/PMS conditioning-pressurized vertical electro-osmotic dewatering
(PEOD) process was used to reduce the volume of activated sludge (AS). The changes in …

Applying rheological analysis to better understand the mechanism of acid conditioning on activated sludge dewatering

HF Wang, YJ Ma, HJ Wang, H Hu, HY Yang, RJ Zeng - Water research, 2017 - Elsevier
The pH value is a key parameter and affects sludge dewatering. Comprehensive
understanding of the effects and mechanism of pH is important for sludge treatment process …

Optimization of electro-dewatering performance of oily sludge by voltage control and coal-powdered activated carbon (CPAC) addition

C Li, M Zhao, D Ma, X Jia, F Zhang - Journal of Cleaner Production, 2023 - Elsevier
Electro-dewatering technology (EDW) exhibits promising prospects for oily sludge reduction
treatment, owing to its remarkable dewatering efficiency. Unlike conventional oily sludge …

Permanganate/bisulfite (PM/BS) conditioning–horizontal electro-dewatering (HED) of activated sludge: Effect of reactive Mn (III) species

X Guo, Y Wang, D Wang - Water research, 2017 - Elsevier
A novel activated sludge (AS) conditioning method through permanganate/bisulfate (PM/BS)
process was proposed. The method involved a new conditioner of reactive Mn (III) …

Influence of alternating electric field on deep dewatering of municipal sludge and changes of extracellular polymeric substance during dewatering

Y Li, L Liu, X Li, J Xie, M Guan, E Wang, D Lu… - Science of The Total …, 2022 - Elsevier
A self-prepared experimental device made of plexiglass with alternating power supply
system was used to study the deep dewatering of municipal dewatered sludge. Considering …

Pore-scale model and dewatering performance of municipal sludge by ultrahigh pressurized electro-dewatering with constant voltage gradient

B Rao, H Pang, F Fan, J Zhang, P Xu, S Qiu, X Wu… - Water Research, 2021 - Elsevier
The disposal of huge municipal sludge with high moisture content has led to numerous
energy consumption and brought extensive concerns in the world. In this paper, three …

Sludge-derived biochar improves sludge electro-dewatering performance: Conductivity analysis

Y Yang, P Ma, Y Li, Y Chen, H Zhang - Colloids and Surfaces A …, 2024 - Elsevier
Abstract The application of Coupled Electro-dewatering (EDW) with Carbon Materials has
demonstrated significant potential in the efficient deep dewatering and solid-liquid …

Study on dewaterability limit and energy consumption in sewage sludge electro-dewatering by in-situ linear sweep voltammetry analysis

W Yu, J Yang, X Wu, Y Gu, J Xiao, J Yu, Y Shi… - Chemical Engineering …, 2017 - Elsevier
Electro-dewatering (EDW) is an innovative method for volume reduction of sewage sludge
before re-utilization and disposal. In this study, dewaterability limit and energy consumption …