How we treat Windermere's wastewater - part 4

This part is all about removing the bad bacteria. The trickling filters are a natural process that use bugs to break down the ammonia and organic material in the flow. Bugs grow on a plastic media within the tanks and as the wastewater trickles through the filter, the bugs feed off and reduce the nutrients.

Видео How we treat Windermere's wastewater - part 4 канала United Utilities