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2023 | Book

Introduction Read chapter Read first chapter

Nanowire-assisted Flow-through Electrode Enabling Electroporation Disinfection of Reclaimed Water

Author: Zheng-Yang Huo

Publisher: Springer Nature Singapore

Book Series : Springer Theses

Part of: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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About this book

This Ph.D. book develops nanowire-assisted electroporation disinfection technology based on the flow-through porous electrode. The author presents pioneering results on theoretical modeling, experimental realization, and selected applications, showing the novel disinfection mechanism of electroporation guarantees an exceedingly low level of energy consumption. In this regard, three classes of novel dynamic behavior are investigated: (i) The developed nanowire-assisted flow-through electroporation disinfection technology enables great microbial disinfection performance with extremely low voltage (1V), which significantly reduce the formation potential of harmful disinfection by-products during the treatment process. (ii) The nanowire-assisted flow-through electroporation disinfection technology ensures no reactivation/regrowth of inactivated bacteria and meanwhile promotes the gradual death of damaged bacteria during the storage process. (iii) The application of high-frequency AC power supply (106 Hz) ensures the high microbial disinfection efficiency while suppressing the occurrence of electrochemical reactions and extending the electrode lifetime effectively.

Table of Contents

Frontmatter
Chapter 1. Introduction
Abstract
Water is a basic human need, whereas one in three people do not have reliable access to safe drinking water worldwide every year. The contaminated drinking water has become one of the main transmission pathways of waterborne pathogens leading to diarrheal, malaria, and gastroenteritis. Thus, waterborne illnesses remain a huge threat to public health, especially in the developing areas where sanitation facilities and gird power are not available or in developed areas that suffer from natural disasters (e.g., earthquakes and tsunami).
Zheng-Yang Huo
Chapter 2. Development of Nanowire-Modified Electrodes and Investigation of the Microbial Inactivation Performance
Abstract
Bacteria can undergo irreversible electroporation reactions in the region of the nanowire-enhanced electric field, leading to cell death.
Zheng-Yang Huo
Chapter 3. Effect of the Nanowire Morphology and Electrode Structure on Microbial Inactivation
Zheng-Yang Huo
Chapter 4. Fabrication of High-Durability Nanowire-Modified Electrodes and Investigation of Their Microbial Disinfection Performance
Abstract
When nanowires with ideal morphology are grown on the surface of the porous electrode, a strong electric field can generate at the tip area of the nanowires even with a low external voltage (1 V).
Zheng-Yang Huo
Chapter 5. Surface Coating on Nanowire-Modified Electrode Lifetime Enhancement
Abstract
Cu3P nanowire-modified copper foam electrodes with stable physical structure and high chemical stability can achieve efficient microbial disinfection during long-term operation. Mechanisms of electrode loss during the long-term operation of Cu3P nanowire-modified electrode were confirmed to be the electrochemical redox reaction that occurred on the electrode surface and the electrode detachment by water flow due to the insufficient physical strength.
Zheng-Yang Huo
Chapter 6. Altering Current Driven Nanowire-assisted Electroporation Disinfection with the Enhanced Electrode Life
Abstract
The nanowire-modified electrode can be completely covered with a tightly bonded PDA film, which significantly improves the physical and chemical stability, thus increasing the electrode lifetime.
Zheng-Yang Huo
Chapter 7. Nanowire-assisted Electroporation Disinfection for Reclaimed Water
Abstract
The aforementioned study used a high-frequency AC power supply to drive efficient microbial disinfection using PDA-coated nanowire-modified electrodes for 15 consecutive days. The long electrode lifetime of 15 days shows a strong potential for practical applications.
Zheng-Yang Huo
Chapter 8. Conclusions and Perspectives
Abstract
In this study, a nanowire-assisted electroporation disinfection system based on the internal filtration treatment mode using porous electrodes was constructed.
Zheng-Yang Huo
Backmatter
Metadata
Title
Nanowire-assisted Flow-through Electrode Enabling Electroporation Disinfection of Reclaimed Water
Author
Zheng-Yang Huo
Copyright Year
2023
Publisher
Springer Nature Singapore
Electronic ISBN
978-981-9945-02-3
Print ISBN
978-981-9945-01-6
DOI
https://doi.org/10.1007/978-981-99-4502-3