| Many areas have no waste water treatment plants at all, with sludge and sewage disposal going directly in to the ocean. |
| The discovery came about during rescue excavations on Thames Water's sludge works. |
| 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. |
| A knobby, trail-runner-type outsole makes short work of Atlantic City sludge. |
| To feed the microbes, plants must aerate sewage sludge with costly, power-hogging equipment. |
