31.—(1) The recovery of monopropylene glycol by filtering and distilling relevant waste collected following de-icing of aircraft.
(2) The table specifying relevant waste for the purposes of this paragraph is set out below.
| Codes | Waste types |
|---|---|
| 160115 | Antifreeze fluids other than those mentioned in 160114 |
(3) For the purposes of this paragraph, the specific conditions are that—
(a)the total quantity of waste treated or stored over any 7-day period does not exceed 250 cubic metres;
(b)the waste is treated in a location with sealed drainage;
(c)the operation is carried on at the place where the waste is produced; and
(d)the waste is stored with secondary containment.