Water: sewage treatment plant: tertiary

Illustration of a primary sewage treatment plant

3-D Illustration of a sewage treatment plant with pools

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

Illustration of a drinking water treatment plant

A biodigestor processes organic waste into gas and fertilizer. It is a simple system to implement with inexpensive materials and is being introduced in isolated rural communities and developing countries to get the double benefit of getting solve energy and environmental problems, and perform proper management of both human waste and animal

Illustration of an upright water pipe

Illustration of a desalination plant

Illustration of a drainage pipe aiming downwards