Winter 1989
Waste Water Management and Treatment Today
As the representative ofGuetling for the Dutch speaking part of
this world, I have been given the honor to address this
meeting.
The title of this presentation in the agenda states “Waste Water
Management and Treatment Today, but should be extended
somewhat with “equipment to save water, raw materials and
energy”.
To run etching plants economically, the threatening shortage of
raw materials and water means that more and more processes
have to be applied, or integrated, to reduce the costs, meaning the
use of practical ways to achieve a substantial reduction ofthe need
for good water, raw materials and energy.
The so called classical waste water treatment plants are needed
to supplement the necessary reclamation installations, but should
only be used to treat the final, inevitable, remainder.
Large quantities of water and specific chemicals, as well as
much energy are required for treatment processes.
Water is, among other things, needed for makeup of process
solutions and stripping solutions of the treated parts, prior to the
next process step.
Norbert Nowak, Guetling GmbH
