5120 x 3412 px | 43,3 x 28,9 cm | 17,1 x 11,4 inches | 300dpi
Aufnahmedatum:
Mai 2008
Ort:
Braemar, Royald Deeside, Scotland uk
Weitere Informationen:
A septic tank treats domestic sewage and discharge, either into a watercourse or into the ground. In septic tanks the solids in the sewage settle to the bottom. Relatively clear liquid is left which forms a layer of scum on its surface. Bacteria feed on this liquid and digest some of the matter in it. The liquid then either passes into another settlement tank before passing to a watercourse or is discharged underground through a network of pipes to filter through the soil. Septic tanks are capable of treating all of a household's domestic sewage. However, the solids that build up at the bottom of the tank do need to be pumped out about once a yearRural septic tanks emptying tanker parked on remote scottish road, at scottish viewpoint.
