|
|
| Type |
Symposium |
| Area |
Current Trends in Chemistry for Water Science and Technology |
| Room No. |
407호 |
| Time |
THU 15:20-: |
| Code |
ENVR-5 |
| Subject |
Copper-Based Hybrid Systems for Disinfection of Planktonic and Biofilm Cells
|
| Authors |
이창하
UNIST 도시환경공학부, Korea |
| Abstract |
The biocidal activity of Cu(II) is greatly enhanced by the addition of H2O2 or hydroxylamine (HA), which accelerates the production of cytotoxic Cu(I) and generates a reactive oxidant (cupryl ion, Cu(III)) capable of exerting oxidative cell damages. The bimetallic Fe-Cu nanoparticles also exhibit excellent biocidal activity in the similar biocidal mechanism. These copper-based hybrid disinfection systems were assessed for their potential to inactivate surrogate bacteria and viruses. In addition, combinations of Cu(II) with HA and H2O2 (i.e., Cu(II)/HA, Cu(II)/H2O2, and Cu(II)/HA/H2O2 systems) were tested for the control of bacterial biofilms on reverse osmosis (RO) membranes. The detailed mechanisms for the cell inactivation by different copper-based disinfection systems were discussed.
|
| E-mail |
clee@unist.ac.kr |
|
119th General Meeting of the KCS