| Answer | Crossword Clue |
|---|---|
| SEWAGE | Treatment plant input |
| SEAWATER | Input in a desalination plant |
| MULCH | Plant treatment |
| SEWAGE | ... treatment plant |
| SEWAGE | Treatment-plant matter |
| SEWAGE | Treatment plant fodder |
| SEWAGE | Waste at a treatment plant |
| ALOE | Plant with a built-in burn treatment |
