Water use efficiency and reuse in Mexico
Smurfit Kappa Culiacán has improved the efficiency of water usage by 48% in 2012 compared to 2011.
Our plant in Culiacán, Mexico, is located in an area with a semi-arid climate. Although annual rainfall is over 600 millimetres, the high average annual temperatures causes significant evaporation. Sustainable water management therefore is an important issue at the plant.
New initiatives have improved the efficiency of water usage by 48% in 2012 compared to 2011.
Water consumption decreased from 1.19 m3/tonne in 2011 to 0.62 m3/tonne of saleable output.
Process water discharged was reduced from 0.32 to 0.18 m3/tonne saleable output.
This was realised by closing water jacket circuits in the corrugator’s single facers and by reusing wash water in starch adhesive preparation and the washing of printing plates. For the water treatment process an electrocoagulation process was implemented.
The use of potable water in sanitary services, instead of using untreated superficial water, improved health and safety conditions and decreased the sanitary water discharge.