| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bio-Nano Interfaces and Engineering Applications
|
| Presentation Title |
Attachment Surface Energy as an Indicator for Adhesion of Nitrifying Bacteria |
| Author(s) |
Ting-Ting Chang, Po-Yu Chen |
| On-Site Speaker (Planned) |
Ting-Ting Chang |
| Abstract Scope |
In recent years, submerged biofilm systems are progressively used in wastewater treatment and the attachment capability of bacteria on biocarriers is one of the crucial design factors. In this work, we used atomic force microscope (AFM) to study bacteria attachment on different types of biocarriers and for verifying systematically physicochemical properties. Ammonia-oxidizing bacteria (Nitrosomonas europaea) was selected and fixed on the probe of AFM for the attachment force measurements with varying surface energies, interfacial energies, and functional properties. The results showed that biocarrier possessed adhesion forces of 1.95 mJ/m2 and flexural modulus of ~300 MPa. In addition, the experiment showed a good correlation between attachment forces and attachment surface energies. This work demonstrated that AFM can be successfully applied as a platform to fast screen and determine the materials selection of biocarrier based on corresponding bacteria and provided potential strategies for improving treatment performance through optimized biocarrier material designs. |
| Proceedings Inclusion? |
Planned: Publication Outside of TMS |