Recycling water & waste water 64% of total water demand reused
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GRI 303: Water and waste water; 306: Water and waste. UN Sustainable Development Goals (SDGs), No 6: Clean water and sanitary facilities

Water consumption reduced by almost half

EVVA headquarters is located in a water protection area, which is why sustainable use of this resource is important to us. EVVA does not recirculate water, but consumes it itself. We need water for production processes that have not yet been converted to Clean Production, i.e. currently for 35% of production facilities, as well as for electroplating and for personal hygiene. EVVA aims to continuously reduce water consumption at its headquarters in order to conserve this resource to the greatest possible extent. In 2010, EVVA still consumed 7,153 m³ of water, in 2019 only 4,031 m³ (2,569 m³ for electroplating, 1,462 m³ for personal hygiene, etc.), i.e. a reduction of almost half.

Lower fresh water consumption

Illustration fresh water savings
 

Amount of water consumed per hour of attendance

Chart of amount of water consumed per hour of attendance


Reasons for water savings:

  • Photo of a vacuum evaporator
    The vacuum evaporator in EVVA production
    EVVA is increasingly using Clean Production machines that do not require water 

  • more effective production and water treatment processes in electroplating (for the surface treatment of our products)
     
  • A vacuum evaporator that treats 100% of the waste water from electroplating and returns it to the production cycle. This means that only the waste water used for personal hygiene (washbasins, showers, toilets) flows into the public sewer system, but not the waste water from electroplating – this is completely recycled via the vacuum evaporator!
     

Altogether 64% of the total water demand (i.e. all waste water from electroplating) is recycled at the headquarters!

 

Challenges

In 2019, the waste water limit was exceeded once at the headquarters. This was due to old deposits in a piping duct. EVVA immediately initiated appropriate measures, such as cleaning the duct and increasing the frequency of cleaning cycles. The values are again within the norm and approved by the authority. There have been no proceedings against EVVA.

Our targets

Fulfilment date: 2023

How: We want to further reduce water consumption at the headquarters, through further process improvements in electroplating and by installing new valves in shower/washing facilities to regulate the water supply in a more resource-efficient way.

Positive effects: These measures are intended to reduce water demand from 4,031 m³ per year (as of 2019) to a maximum of 3,500 m³ per year from 2023. In addition to the environmental benefit, this would also be a saving of €4 per m³.

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