Water: drinking water treatment plant 1

Illustration of a primary sewage treatment plant

3-D Illustration of a sewage treatment plant with pools

Illustration of a tertiary sewage treatment plant

Another illustration of a wastewater treatment plant, with pools, buildings and a drainage pipe

Illustration of drinking water from treatment plant off-take

Illustration of an upright water pipe

Illustration of a drainage pipe aiming downwards

Illustration of a desalination plant