My company has done a lot of growing since the early 70’s when we started our first efforts at pretreatment of our wastewater. The first growth was in our attitude. In the early years we had a lot of resistance to the cost and effort necessary for successful pretreatment. I well remember all the fussing and complaining about what we had to do. I hope that my first slide will be a chart showing the progress in the 70’s and 80’s for the removal of both nickel and chrome from the wastewater. That was then. Today we are looking at reducing just that small residual for a large number of chemicals.
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