Evaporation electrolysis
UNIWASTEC’s evaporation electrolysis process is the world’s only technology for the direct extraction of green hydrogen from wastewater or seawater.
Technology
UNIWASTEC’s evaporation electrolysis process is the world’s only technology for the direct extraction of green hydrogen from wastewater or seawater.
The enrichment of the high-purity hydrogen takes place in a special process in which the process water repeatedly passes through the process of evaporation and thawing one after the other and finally separates as clean condensate.
By repeatedly passing through the process, hydrogen successively accumulates in the material flow in certain phases and can be produced there in a specially designed electrolysis with low electrical energy input.
In this way, an overall efficiency is achieved for the production of high-purity hydrogen that far exceeds all other electrolysers available on the market.
Core Advantages
Extremely low-maintenance
No chemicals or filters are needed. Extremely low-maintenance system.
Resource-saving
No waste of drinking water. Hydrogen is obtained from wastewater or seawater.
More than 85% efficiency
Market-leading efficiency from wastewater to high-purity hydrogen an overall efficiency of more than 85%. From 1 cubic meter of wastewater, we produce 90 kilograms of green hydrogen and 711 kilograms of green oxygen.
Low power consumption: 39 MWh for 1 t of wastewater including water purification.
Flexibility & Quality
The electrolyser is modularly scalable and can thus be adapted to the respective demand.
The hydrogen and oxygen are of the highest purity 99.999%.
Plant sizes
| Water flow rate | Hydrogen | Oxygen | Required surface* | ||
| m3/h | m3/y | t/y | t/y | m2 | |
| SH-1 | 1 | 8,640 | 773 | 6,138 | 180 |
| SH-2 | 2 | 17,280 | 1,546 | 12,276 | 220 |
| SH-3 | 3 | 25,920 | 2,319 | 18,414 | 260 |
| SH-4 | 4 | 34,560 | 3,092 | 24,552 | 300 |
| SH-5 | 5 | 43,200 | 3,865 | 30,690 | 360 |
| SH-10 | 10 | 86,400 | 7,730 | 61,380 | 520 |
| SH-20 | 20 | 172,800 | 15,460 | 122,760 | 680 |
Your connection to UNIWASTEC
If you have any questions or queries our experts will always be happy to help. Feel free to contact us and we will be sure to get back to you as soon as possible.