News tagged with water treatment plants

Using plants to purify canal water

Just south of Rome lie the Pontine Marshes, a vexed part of the Italian countryside. In ancient times, Roman emperors tried unsuccessfully to drain the marshes, something only achieved in the 1930s through a system of massive ...

Apr 07, 2010 4.5 / 5 (4) 2

Sources of pollution in waterways

Polycyclic aromatic hydrocarbons (PAHs) are components of petroleum products such as gasoline, coal, and oil. They are also produced as by-products of the combustion of fuels including petroleum and fire wood. PAHs can cause ...

Mar 09, 2010 4.3 / 5 (4) 1

Accurate, affordable weather forecasting

The first known rainfall records were kept by the Ancient Greeks, in about 500 B.C. Some 100 years later, people in India used bowls to record the rainfall. The readings were used as a basis for land taxes.

Mar 01, 2013 not rated yet 1