Summary
Abstract
The efficacy of thin-film diamond coated electrodes (DiaCell 101) for disinfection of water artificially contaminated with Penicillium digitatum and Pseudomonas spp. was tested. Electrolysis process was performed with different operation conditions: current densities at 4, 8, and 12A and water flow rate at 150, 300, and 600 L/h. For both pathogens, the experiments were performed in water suspensions at a final concentration of 105 CFU/ml. Tap water was used as a control. The results showed that fungal spores and bacterial cells were affected by flow rate and current density applied. The higher the water flow rate the greater the inactivation of the two microorganisms which were completely suppressed at high recirculation flow (300-600 L/h/cell). Pseudomonas spp. cells were inactivated at the highest current density applied (8-12A) after 6 min of electrolysis, whereas for P. digitatum the complete inactivation was observed at the same current densities after 12 min. The results obtained suggest that the two parameters can be modulated in order to achieve significant suppression in relation to the target microorganism and to obtain an antimicrobial effect without generation of chlorine.
Study details
- Published in: Acta Hortic 1065 (2015): 1599-1605
- Microbes studied: Penicillium digitatum, Pseudomonas spp.
Source
Source: Acta Hortic 1065 (2015): 1599-1605
Conditions tested
| Parameter | Value |
|---|---|
| Organisms | Penicillium spp., Pseudomonas spp. |
| Relevant sectors | Agriculture & Livestock |
| Publication | Acta Hortic, 2015 |
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