As the population is ever-increasing the demand for clean, safe drinking water all over the world is constantly rising. It is no surprise that this has resulted in increased numbers of water treatment plants all over the world.
The increased number of water treatment plants has led to increased levels of sludge being produced. The disposal of this sludge can cause problems, as there is just nowhere available to store it... As the population is ever-increasing the demand for clean, safe drinking water all over the world is constantly rising. It is no surprise that this has resulted in increased numbers of water treatment plants all over the world.
The increased number of water treatment plants has led to increased levels of sludge being produced. The disposal of this sludge can cause problems, as there is just nowhere available to store it... 
