3.2.2. Separation of fish oil from waste stream (early 1980s)
In the early 1980s, the company took the first initiatives in
reducing the contamination of effluent by using centrifugation to
separate fish oil from the wastewater. This provided a valuable byproduct
(fish oil), while significantly reducing effluent levels. This
type of solution requires that process water and cleaning water are
separated in two distinct systems [13]. This solution is on the
border between pollution prevention and pollution abatement, but
as it provides valuable by-products (which substitute other types of
products) and is applied close to the source of pollution, it has many
of the characteristics of prevention and is the first important
example of cleaner production at case B.