Electro-ultrafiltration process with continuously increasing filtration performance for the investigation of nutrients or pollutants in soils, waste compost, sewage sludge etc.

摘要

1. Electro-ultrafiltration process for the examination of nutrients or pollutants, particularly in soil, refuse compost or sewage sludges, in this process, the electrical voltage applied to the electrodes is varied during extraction and the substances transported through the ultrafilters to the electrodes are extracted by vacuum, the anodic vacuum being continually increased from -0.4 bar to -0.8 bar upon commencement of extraction.