4.7 Article

A potential online quantifier of sludge dewaterability developed from the similitude of water and electricity: Understanding the water release resistances as the medium

Related references

Note: Only part of the references are listed.
Article Engineering, Environmental

Application of CaO2-enhanced peroxone process to adjust waste activated sludge characteristics for dewaterability amelioration: Molecular transformation of dissolved organic matters and realized mechanism of deep-dewatering

Dongdong Ge et al.

Summary: This study investigated the impact of the CaO2-enhanced peroxone process on sludge treatment. The results showed that CaO2/O-3 treatment effectively solubilized the sludge and improved its dewaterability. Additionally, the use of PFS flocculation further enhanced the removal of organic substances in the sludge, leading to improved dewatering. These findings are important for the development of optimal sludge treatment methods.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Electrical impedance spectroscopy as a potential tool to investigate the structure and size of aggregates during water and wastewater treatment

Daxin Zhang et al.

Summary: This study proposed an electrical impedance spectroscopy (EIS) method and constructed a generalized framework to associate macroscale electrical properties with microscopic structure and size-related characteristics of aggregates. The models extracted via EIS were capable of describing the self similarity of aggregates and capturing the fractal and size information. The EIS method exhibited a wide range of applications in water and wastewater treatment.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Engineering, Environmental

Influential mechanism of water occurrence states of waste-activated sludge: Potential linkage between water-holding capacity and molecular compositions of EPS

Boran Wu et al.

Summary: This study focuses on the variation in molecular compositions of EPS induced by •OH and its effects on the water occurrence states of waste-activated sludge (WAS). The results indicate that hydrophilic functional groups have a greater impact on the water-holding capacity of EPS. It is clarified that selectively removing hydrophilic functional groups is more effective for highly-efficient sludge conditioning approaches than improving •OH production efficiency.

WATER RESEARCH (2022)

Article Engineering, Environmental

Understanding the mechanism of how anaerobic fermentation deteriorates sludge dewaterability

Qiang Liu et al.

Summary: Anaerobic fermentation increases proteins, polysaccharides, humic acids, and PO43- concentrations but decreases Ca2+ amount in the liquid phase, leading to increased viscosity and decreased zeta potential, affecting the flocculability of sludge. The increase of humic acids is identified as the major contributor to the deterioration of sludge dewatering. Additionally, anaerobic fermentation causes the transformation of microbes from Gram-negative to Gram-positive, enhancing the resistance of mechanical forces and negative charges on sludge flocs.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Mechanics

A new method of predicting network fracture conductivity based on the similitude principle of water and electricity

Guofa Ji et al.

Summary: This paper introduces a new method of calculating network fracture conductivity based on electrical similitude principle and experimental data. The accuracy of this method is verified through comparison of experimental and prediction data, providing a reference for the optimization of fracture network conductivity in shale reservoir multi-staged fracturing.

PHYSICS OF FLUIDS (2021)

Article Engineering, Environmental

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

Binqi Rao et al.

Summary: This study investigated the dewatering mechanisms of municipal sludge and found that the constant voltage gradient mode (G-PEDW) showed the best dewatering performance with lower moisture content and energy consumption. The pore-scale electro-osmosis model was developed to explain the process, providing useful guidelines for G-PEDW dewatering technology.

WATER RESEARCH (2021)

Review Engineering, Environmental

Enhanced technology based for sewage sludge deep dewatering: A critical review

Bingdi Cao et al.

Summary: Sludge is a byproduct of sewage treatment containing pathogens, heavy metals, organic pollutants and other toxic substances. Chemical preconditioning is crucial for improving sludge dewatering efficiency, and different chemical conditioning technologies have a significant impact on the dewatering process. Research and evaluation of various enhanced dewatering technologies are important for improving dewatering efficiency.

WATER RESEARCH (2021)

Article Engineering, Environmental

Predictive models using cheap and easy field measurements: Can they fill a gap in planning, monitoring, and implementing fecal sludge management solutions?

Barbara J. Ward et al.

Summary: Predictive models based on questionnaire data, expert assessments, and simple analytical measurements can be used to predict the physical-chemical characteristics and solid-liquid separation performance of fecal sludge. Image analysis of photographs and probe readings are key inputs to the models, with supernatant color, EC, and texture being important predictors.

WATER RESEARCH (2021)

Article Engineering, Environmental

Using thermal-acidic-modified kaolin as a physical-chemical conditioner for waste activated sludge dewatering

Hamidreza Masihi et al.

Summary: The study demonstrated that TAMK functions as a physical and chemical conditioner for WAS conditioning and dewatering, improving filtration efficiency and resistance. The cost of using TAMK is relatively low, making it an economical, inexpensive, and effective option for sludge treatment.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Destroying the structure of extracellular polymeric substance to improve the dewatering performance of waste activated sludge by ionic liquid

Changtao Chen et al.

Summary: The use of ionic liquid [EMIM][OTf] as a conditioner significantly improves the dewatering performance of waste activated sludge (WAS) by reducing moisture content. The mechanism involves the destruction of EPS structures, inactivation of microbial cells, and conversion of large flocs into small particles and biopolymers. Additionally, the negative charges of WAS are neutralized, weakening electrostatic repulsion between flocs, and [EMIM][OTf] can be recycled multiple times.

WATER RESEARCH (2021)

Article Engineering, Environmental

Siderite/PMS conditioning-pressurized vertical electro-osmotic dewatering process for activated sludge volume reduction: Evolution of protein secondary structure and typical amino acid in EPS

Enrui Li et al.

Summary: This study used siderite/PMS conditioning-pressurized vertical electro-osmotic dewatering (PEOD) process to reduce the volume of activated sludge (AS). Results indicated that the bound water content of AS decreased significantly during conditioning and PEOD stages, and the ratio of Ala-to Lys showed strong correlations with dewaterability.

WATER RESEARCH (2021)

Article Engineering, Environmental

Novel Insights into Extracellular Polymeric Substance Degradation, Hydrophilic/Hydrophobic Characteristics, and Dewaterability of Waste Activated Sludge Pretreated by Hydroxylamine Enhanced Fenton Oxidation

Wenbo Yu et al.

Summary: EPS degradation in sludge treated with Fenton-HA was confirmed to occur layer by layer for the first time in this study. Increasing the molar ratio of H2O2:Fe2+ improved oxidation capability and reduced bound EPS content, but also deteriorated sludge dewaterability, indicating a complex relationship between EPS degradation and dewatering performance.

ACS ES&T ENGINEERING (2021)

Editorial Material Engineering, Environmental

A Specious Correlation between Sludge Rheology and Dewaterability

Jiankai Jiang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Multidisciplinary Sciences

Bioinspired nervous signal transmission system based on two-dimensional laminar nanofluidics: From electronics to ionics

Yunfei Teng et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

Article Multidisciplinary Sciences

Wettability effect on nanoconfined water flow

Keliu Wu et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2017)

Article Multidisciplinary Sciences

Bio-inspired Murray materials for mass transfer and activity

Xianfeng Zheng et al.

NATURE COMMUNICATIONS (2017)

Article Chemistry, Multidisciplinary

Commensurability Effects in Viscosity of Nanoconfined Water

Mehdi Neek-Amal et al.

ACS NANO (2016)

Article Engineering, Environmental

Disintegration of Waste Activated Sludge by Thermally-Activated Persulfates for Enhanced Dewaterability

Min Sik Kim et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016)

Article Engineering, Environmental

The potential use of shear viscosity to monitor polymer conditioning of sewage sludge digestates

I. Oliveira et al.

WATER RESEARCH (2016)

Article Engineering, Environmental

A Fenton-like process for the enhanced activated sludge dewatering

Dong-Qin He et al.

CHEMICAL ENGINEERING JOURNAL (2015)

Article Engineering, Environmental

How Does Poly(hydroxyalkanoate) Affect Methane Production from the Anaerobic Digestion of Waste-Activated Sludge?

Dongbo Wang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2015)

Article Engineering, Environmental

We Should Expect More out of Our Sewage Sludge

Jordan Peccia et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2015)

Article Engineering, Environmental

Electrical and rheological properties of sewage sludge - Impact of the solid content

C. Segalen et al.

WATER RESEARCH (2015)

Article Multidisciplinary Sciences

The interplay between apparent viscosity and wettability in nanoconfined water

Deborah Ortiz-Young et al.

NATURE COMMUNICATIONS (2013)

Review Engineering, Environmental

Application of filtration aids for improving sludge dewatering properties - A review

Ying Qi et al.

CHEMICAL ENGINEERING JOURNAL (2011)

Review Chemistry, Multidisciplinary

Nanofluidics, from bulk to interfaces

Lyderic Bocquet et al.

CHEMICAL SOCIETY REVIEWS (2010)

Article Engineering, Environmental

Characterization of Multiporous Structure and Oxygen Transfer Inside Aerobic Granules with the Percolation Model

Li Liu et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2010)

Article Engineering, Environmental

Contribution of Extracellular Polymeric Substances (EPS) to the Sludge Aggregation

Xiao-Meng Liu et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2010)

Article Engineering, Environmental

Purification and Conformational Analysis of a Key Exopolysaccharide Component of Mixed Culture Aerobic Sludge Granules

Thomas Seviour et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2010)

Article Multidisciplinary Sciences

Electrical detection of pathogenic bacteria via immobilized antimicrobial peptides

Manu S. Mannoor et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2010)

Article Engineering, Environmental

Assessment of rheological methods for a correlation to sludge filterability

M. Marinetti et al.

WATER RESEARCH (2010)

Article Physics, Multidisciplinary

Direct Measurement of the Percolation Probability in Carbon Nanofiber-Polyimide Nanocomposites

A. Trionfi et al.

PHYSICAL REVIEW LETTERS (2009)

Article Engineering, Environmental

Structure of conditioned sludge flocs

CP Chu et al.

WATER RESEARCH (2004)

Article Physics, Multidisciplinary

Statistical properties for two-dimensional fluid flow in percolation porous media

XH Wang et al.

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS (2002)

Article Engineering, Environmental

Settling velocities and permeabilities of microbial aggregates

XY Li et al.

WATER RESEARCH (2002)

Article Engineering, Environmental

Optimization of slurry flocculation and dewatering based on electrokinetic and rheological phenomena

SK Dentel et al.

CHEMICAL ENGINEERING JOURNAL (2000)