Volume reduction
Investments aiming to reduce water consumption are having a positive impact on the amount of
wastewater generated. These investments have included the recycling of cooling water in the
production circle as well as the replacement of water cooling compressors with air cooling systems.
Figure: Wastewater discharge in Nagykanizsa plant
Quality improvement
As a result of investments to modernise the wastewater treatment at the Zalaegerszeg plant
the amount of wastewater discharged has decreased and the quality has been improved.
A two-level wastewater treatment system was established, which resulted in considerable
reduction of
COD-levels, in the case of
oily wastewater. The changes are shown in the figure below.
Figure: COD level change as a result of wastewater treatment plant
development
in Zalaegerszeg
This project was prepared and implemented with the help of the Six Sigma approach. The
central idea behind Six Sigma is that if you can measure how many �defects� you have in a process,
you can systematically figure out how to eliminate them and get as close to �zero defects� as
possible. This method is used widely across GE in all departments, including EHS, to ensure the
highest levels of quality possible in products and processes.
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