|
 |
|
Alternatively to the above described measures the fluid fermentation residue can be cleaned by microfiltration and reversed osmosis to discharge values. |
|
The retentate from the reversed osmosis contains also a liquid fertilizer. An alternative method consists in the processing of the liquid residue in a vacuum evaporation followed by a vapour condensation whereupon high purity distilled water is produced. The energies for these processes are obtained from the 95°C hot cooling water and from the 400°C hot flue gases from the gas motors. |
|
|
|
|
|
|
|
|
|
|
