Technical comparison
| Criteria | O2 Solutions | Brand “M” |
|---|---|---|
| Oxygen flow @ >90% | 5lpm | 5lpm |
| Power consumption | 1.2 kWh | 2.7 kWh |
| Pump flow | 40m³/h | 34m³/h |
| Recommended daily irrigation capacity | 650m³/day | 400m³/day |
| Oxygen transfer efficiency day 1 | > 90% | 90% |
| Oxygen transfer efficiency day 30 | > 90% | 48% |
| Oxygen transfer efficiency day 60 | > 90% | 26% |
| Oxygen transfer efficiency day 90 | > 90% | After chemical cleaning 86% |
| Oxygen transfer efficiency day 120 | > 90% | 44% |
| Oxygen transfer efficiency day 150 | > 90% | 23% |
| Oxygen transfer efficiency day 180 | > 90% | After chemical cleaning 86% |
| Chemical cleaning of the generator | Not necessary | Weekly to monthly |
| Daily operations | Nothing at all | Weekly monitoring of fouling in the system |
* The efficiency tests were conducted in practice on drain water from a rockwool substrate. Water with higher organic contamination, such as crops on water and crops using potting soil, causes even faster contamination of the nanobubble generator (Brand ‘M’). It is 100% guaranteed at O2solutions that the solubility rate remains the same all year round with any water type.
** Due to fouling of the system (Brand ‘M’), oxygen flow slowly decreases and the operator needs to continuously check and adjust the system to avoid failure.
Financial comparison
| Criteria | O2 Solutions | Brand “M” |
|---|---|---|
| Investment nanobubbles system | 30% to 40% lower | |
| Installation cost | 500 Euro / 550 USD | 1,500 Euro / 1,650 USD |
| Energy savings | 50% lower | |
| Yearly maintenance cost | Always below 1,000 Euro / 1,100 USD | Aprox. 2,000 Euro / 2,200 USD |
| Chemical cleaning cost | 0 | Can go up to 1,500 Euro / 1,650 USD / year |