| The sludge generated from backwashing the filters is sent to a spent washwater tank for recirculation through the facility to minimize waste. |
| Even our fruits and vegetables get contaminated by these pathogens through exposure to tainted fertilizers and sewage sludge. |
| After Sludge 1 and 2 had executed their formation take-offs, Sludge 3 and 4 began their engine run-ups. |
| If operated in conjunction with a coppiced willow tertiary treatment system, this would remove the need to dump sewage sludge into Tramore Bay. |
| The rate of sludge generation in septic tanks is around 0.05 cubic yards every year for an individual. |
| They may not break down readily and will contribute to the scum or sludge layers. |
