Raw sewage can be treated until it becomes quite pure.

Vials of water, raw sewage to reclaimed water, showing purity.

Detailed Description

Sequence of reclamation from left: raw sewage, plant effluent, and finally reclaimed water (after several treatment steps)

Details

Image Dimensions: 656 x 419

Location Taken: US

Credits

Credit: Wikimedia, Creative Commons License

Source: