Water collection ditch and the water neutralisation point

Source of the photo: 
Feigl Viki
Author of the description: 
Gruiz Katalin
Water collection ditch and the neutralisation point

The photo shows the water colelction ditch around the red mud pond. The water neutralisation point is visible in the background (blue coloured object).

The water pH is adjusted in the water collection ditch so that the pH of the water discharged into the Torna creek should be below 9.5