| GR/R20601/01 | Adsorption Treatment For the Removal of Humic Substances From Potable & Indusrial Water Supplies | (P) |
| GR/K66192/01 | DOWNFLOW AND UPFLOW OPERATION OF BIOLOGICAL AERATED FILTERS (BAFS) FOR WASTEWATER TREATMENT | (C) |
| GR/K11451/01 | MAGNETICALLY-AUGMENTED WATER TREATMENT | (C) |
| GR/J53539/01 | PILOT SCALE STUDIES OF FILTER BACKWASHING | (P) |
| GR/J04487/01 | CLEANING MECHANISMS DURING FILTER BACKWASHING WITH AIR SCOUR | (P) |
| GR/H16490/01 | CLEANING MECHANISM DURING FILTER BACKWASHING WITH AIR SCOUR | (P) |