Our wastewater and water consumption represent a significant environmental impact. We have organised our production to use as little water as possible.

Our counter-current rinsing runs as efficiently as possible, and the water used for manual rinsing is kept to a minimum. Although Stjerne-Chrom is continually expanding production, we work to keep water consumption at its current level. In particular, we focus on optimising the way parts are hung, reducing rinsing to a minimum – and on extending the service life of all our chemical baths.

We monitor water consumption closely in order to minimise the volume of wastewater that is produced and has to be treated in our treatment plant.

Stjerne-Chrom holds a wastewater permit that sets stringent requirements for the water we discharge. Our wastewater is treated and monitored in batches, in the following process:

Wastewater treatment

1
pH adjustment
2
Precipitation
3
Sludge dewatering
4
The sludge is disposed of via NG Nordic
5
Treated wastewater is passed through two ion exchangers before discharge to the sewer

Our in-house monitoring takes samples from ion exchanger 1, and even at that stage we comply with the authorities' requirements. The wastewater is tested four times a year by an independent laboratory, and in recent years we have met all regulatory requirements.

20%

Our target

We are working towards ensuring that our wastewater after ion exchanger 2 contains no more than 20% of the permitted values.

Would you like to know more?

Contact us for documentation of our wastewater permit and analysis results.

Contact us