Some water treatment problems are easier to solve than others. At a major producer’s prepared-meat plant, multiple requirements make water treatment tricky.
At its plant in the Southeast, the prepared-meat
producer uses several evaporative condensers to chill both ammonia and cooling
jacket water for refrigeration and packaging machines. With no flow pressure
other than gravity, the heat transfer surfaces are prone to build up layers of
scale that precipitate out of the water. In addition, copper cooling coils in
the plant’s packaging machines require that the water be treated with copper
When the local water district required
the elimination of all molybdenum from the plant’s discharge water, the plant
managers turned to Garratt-Callahan, Burlingame, Calif., to come up with a new
approach to the unique water treatment problem.
product development laboratories modified the company’s Formula 2300, which is
designed for use in galvanized evaporative condensers, by adding a copper
corrosion inhibitor. The result, called Formula 2310, provides both
high-performance scale control and copper corrosion control. And, it meets all of
the plant’s discharge-water quality requirements.
short time, inspections of an ammonia refrigeration compressor and condenser at
the plant showed reductions in both scale and copper corrosion.
of needing to be cleaned once a year or more - a job that required shutting
down each cooling tower for at least a day - the towers now perform reliably at
lower fuel and maintenance costs. The plant’s managers no longer operate in
fear of water district fines. And Garratt-Callahan Formula 2310 has been
adopted by other customers with similar water treatment requirements.