Lack of clean drinking water

Companies want to stop water waste

Companies worldwide are in the process of ensuring a more water-efficient production. This will both strengthen competitiveness and meet the UN Sustainable Development Goal of ensuring clean drinking water.

Photo: Carlsberg
Carlsberg has found a way to recycle 90 per cent of the production process water.
The first step is to treat process wastewater and remove biological and organic substances using bacteria. You then remove the remaining parts of the organic substances, bacteria, nitrogen, and phosphorus by means of an impervious membrane through which the bacteria cannot penetrate. You subsequently remove the remaining salts in the water using a reverse osmosis system in which only the water penetrates the tight filter. The very last residues of organic matter are removed using a newly developed vacuum UV technology, which also contributes to disinfection of the water.