RiverBasinObject: Water purification

Purification plants are represented by a sub-type of treatment plant nodes

They are primarily described by their HEADER and the hypertext description and imagery.

Attributes are grouped into topics and shown in pop-up windows that are triggered by BUTTONS.
They include:

1. Technology describing the purification plant in terms of technology, capacity input and output water quality, and local storage;
2. Economics describes the economics of the plant;
3. Links to other objects: Please note that a purification plant should be linked to a source (surface water or groundwater) and a downstream user, i.e., a city, tourist resort, or industry.