Chapter 1Introduction
1.1Research background
1.1.1Significance of wastewater reclamation
and reuse
1.1.2Necessity of wastewater reclamation
and reuse
1.1.3Challenges of the existing disinfection
technology
1.2Electroporation disinfection
1.2.1Electroporation for biomedical application
1.2.2Electroporation for water disinfection
1.3Current research status of novel electroporation
disinfection
1.3.1Nanowireassisted electroporation for water
disinfection
1.3.2Current reactor for nanowireassisted
electroporation disinfection
1.3.3Methods for insitu nanowire fabrication
1.3.4Impact of the nanowire morphology on
electroporation disinfection
1.3.5Nanomaterial strengthening method and electrode
lifetime improvement method
1.3.6Treatment efficiency of nanomaterialenabled
disinfection technology for reclaimed
wastewater
1.4Research topics to be further investigated
1.5Research objective and content
1.5.1Research objective
1.5.2Research content
1.5.3Research roadmap
Chapter 2Development of nanowiremodified electrodes and investigation
of the microbial inactivation performance
2.1Research background
2.2Experimental materials and methods
2.2.1Experimental reagents
2.2.2CuO nanowiremodified copper foam electrodes
fabrication and disinfection device
construction
2.2.3Characterization of CuO nanowiremodified
copper foam electrodes
2.2.4Microbes and water samples used in
experiments
2.2.5Nanowireassisted electroporation for microbial
disinfection
2.2.6Bacterial storage after nanowireassisted
electroporation disinfection
2.2.7Free chlorine detection and current detection
during nanowireassisted electroporation
disinfection
2.2.8Copper ion concentration detection
2.2.9Bacterial morphology analysis
2.2.10Bacterial staining experiments
2.3Fabrication of CuO nanowiremodified copper
foam electrodes
2.4Disinfection efficiency of CuO nanowiremodified copper
foam electrodes
2.4.1Disinfection efficiency of E.coli.
2.4.2Disinfection efficiency of E. faecalis, B.subtilis,
and secondary effluent from municipal wastewater
treatment plants
2.4.3Current fluctuations and free chlorine generation
during the disinfection process
2.5Bacterial inactivation mechanisms of nanowireassisted
electroporation disinfection
2.5.1Cell morphology analysis
2.5.2Bacterial staining analysis
2.6Bacterial population fluctuations during the storage
process after disinfection
2.6.1Bacterial population fluctuations during the
storage process
2.6.2Structural analysis of bacterial morphology
during storage after lowdosage nanowireassisted
electroporation disinfection
2.6.3Summary of the tendency of bacterial changes
during storage after disinfection
2.7Summary of this chapter
Chapter 3Effect of the nanowire morphology and electrode structure
on microbial inactivation
3.1Research background
3.2Experimental materials and methods
3.2.1Experimental reagents
3.2.2Preparation of porous electrodes modified with
nanowires of different morphologies
3.2.3Construction of nanowireassisted electroporation
disinfection devices with different electrode
structures
3.2.4Characterization of CuO nanowiremodified
copper foam electrode
3.2.5Microbes and water samples used in
experiments
3.2.6Nanowireassisted electroporation for microbial
disinfection
3.2.7Investigation of the disinfection contribution
of positive and negative electrode and
optimization of the reactor design
3.3Investigation on the effect of CuO nanowire morphology
on bacterial disinfection
3.3.1Factors impacting the morphology of
CuO
nanowires
3.3.2Study on the impact of CuO nanowire
morphology on bacterial disinfection
3.4Investigation on the effect of electrode structure on
bacterial disinfection
3.4.1Investigation of the effect of electrode pore
size on bacterial disinfection
3.4.2Investigation of the effect of electrode thickness
on bacterial disinfection
3.5Investigation on the effect of electrode arrangement
on bacterial disinfection
3.5.1Contribution of positive and negative electrodes
to microbial inactivation during nanowireassisted
electroporation disinfection
3.5.2Reactor optimization to enhance electroporation
disinfection efficiency
3.6Summary of this chapter
Chapter 4Fabrication of highdurability nanowiremodified electrodes
and investigation of their microbial
disinfection performance
4.1Research background
4.2Experimental materials and methods
4.2.1Experimental reagents
4.2.2Fabrication of Cu3P nanowiremodified copper
foam electrode
4.2.3Construction of nanowireassisted electroporation
disinfection devices
4.2.4Characterization and elemental analysis
of
nanowiremodified electrode
4.2.5Microbes and water samples used in
experiments
4.2.6Cu3P nanowireassisted electroporation for
microbial disinfection
4.2.7Analysis of microbial inactivation
mechanisms
4.2.8Analysis of the disinfection efficiency using
nanowiremodified electrodes for
longterm operation
4.2.9Analysis of the loss mechanism of electrode
during longterm operation
4.3Fabrication and characterization of Cu3P
nanowiremodified electrodes
4.3.1Fabrication of Cu3P nanowiremodified
electrodes
4.3.2Characterization of Cu3P nanowiremodified
electrodes
4.4Disinfection efficiency and mechanism of nanowire
assisted electroporation using Cu3P nanowiremodified
electrodes
4.4.1Disinfection efficiency of nanowireassisted
electroporation using Cu3P nanowiremodified
electrodes
4.4.2Disinfection mechanisms of nanowireassisted
electroporation using Cu3P nanowiremodified
electrodes
4.5Longterm disinfection performance and electrode
loss mechanism
4.5.1Longterm disinfection performance of Cu3P
nanowiremodified electrodes
4.5.2Electrode loss phenomenon during the
longterm operation
4.5.3Loss mechanism of Cu3P nanowiremodified
electrode
4.6Summary of this chapter
Chapter 5Surface coating on nanowiremodified electrode
lifetime enhancement
5.1Research background
5.2Experimental materials and methods
5.2.1Experimental reagents
5.2.2Fabrication of polydopamine (PDA)coated
nanowiremodified electrodes
5.2.3Characterization of PDAcoated nanowire
modified electrodes
5.2.4Disinfection device construction using PDA
coated nanowiremodified electrodes
5.2.5Microbes and water samples used
in experiments
5.2.6Electroporation disinfection for microbes using
PDAcoated nanowiremodified electrodes
5.2.7Analysis of the disinfection efficiency
using nanowiremodified electrodes for long
term operation
5.2.8Analysis of the loss mechanism of electrode
during longterm operation
5.3Fabrication of PDAcoated nanowiremodified
electrodes
5.3.1Fabrication of PDAcoated CuO
nanowiremodified electrodes
5.3.2Characterization of PDAcoated CuO
nanowiremodified electrodes
5.3.3Fabrication of PDAcoated Cu3P
nanowiremodified electrodes
5.3.4Characterization of PDAcoated Cu3P
nanowiremodified electrodes
5.4Electroporation disinfection efficiency of PDAcoated
nanowiremodified electrodes
5.4.1Disinfection efficiency of PDAcoated
nanowiremodified electrodes
5.4.2Analysis of the disinfection mechanism of
PDAcoated nanowiremodified electrodes
5.5Longterm disinfection performance and loss mechanism
of PDAcoated nanowiremodified electrodes
5.5.1Longterm disinfection performance of PDA
coated nanowiremodified electrodes
5.5.2PDAcoated nanowiremodified electrode loss
analysis
5.5.3Analysis of the loss mechanism of PDAcoated
nanowiremodified electrodes
5.6Summary of this chapter
Chapter 6Altering current driven nanowireassisted electroporation
disinfection with the enhanced electrode life
6.1Research background
6.2Experimental materials and methods
6.2.1Experimental reagents
6.2.2Fabrication of PDAcoated nanowiremodified
electrodes
6.2.3Disinfection device construction using
PDAcoated nanowiremodified
electrodes
6.2.4Microbes and water samples used in
experiments
6.2.5Electroporation disinfection for microbes
using PDAcoated nanowiremodified
electrodes
6.2.6Analysis of the disinfection efficiency using
nanowiremodified electrodes for longterm
operation
6.2.7Analysis of the loss mechanism of electrode
during longterm operation
6.3Analysis of the disinfection efficiency of nanowire
assisted electroporation driven by a highfrequency AC
power supply
6.4Longterm disinfection efficiency and loss mechanism of
nanowireassisted electroporation powered by
highfrequency AC
6.4.1Highfrequency ACpowered nanowireassisted
electroporation for longterm disinfection
6.4.2Analysis of electrode loss in longterm operation
when powered by highfrequency AC
6.5Summary of this chapter
Chapter 7Nanowireassisted electroporation disinfection
for reclaimed water
7.1Research background
7.2Experimental materials and methods
7.2.1Experimental reagents
7.2.2Fabrication of nanowiremodified electrodes
7.2.3Disinfection device construction using
nanowiremodified electrodes
7.2.4Microbes and water samples used in
experiments
7.2.5Electroporation disinfection for
reclaimed water
7.3Effect of typical reclaimed water quality on
nanowireassisted electroporation disinfection
efficiency
7.3.1Effect of inorganic water parameters on the
efficiency of DCpowered nanowireassisted
electroporation disinfection
7.3.2Effect of inorganic water parameters
on the efficiency of ACpowered nanowire
assisted electroporation disinfection
7.3.3Effect of organic matter on the disinfection
efficiency of DCpowered nanowireassisted
electroporation
7.3.4Effect of organic matter on the disinfection
efficiency of ACpowered nanowireassisted
electroporation
7.4Disinfection performance of nanowireassisted
electroporation on reclaimed water
7.4.1Disinfection performance of nanowireassisted
electroporation for secondary effluent from
wastewater reclamation treatment plants
7.4.2Disinfection performance of nanowireassisted
electroporation for the receiving water bodies of
reclaimed water
7.5Summary of this chapter
Chapter 8Conclusions and perspectives
8.1Conclusions
8.2Perspectives
References