Word: scrubbers
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Dates: during 1960-1969
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...dial A-I-R on the factory phone. If the problem is serious, expert "sniffers" hurry to the scene, ready to bottle the air, analyze it and repair the leak. Elaborate ductwork in one factory connects the points where noisome phenols might be emitted and whisks them to a scrubber system that removes the odor with absorbent filters. Since 1967, Monsanto has spent almost $3,000,000 to curb pollution in St. Louis, plus another $12 million at its other plants across the nation...
...Still at a temperature of 90° F., the unvaporized sea water from the evaporator tower is used to control temperature and humidity levels in nearby greenhouses. Even the exhaust gases, consisting largely of carbon dioxide, are put to work. From the heat exchanger, they are pumped through a scrubber, which rids them of harmful sulfur dioxide, and into the greenhouses, where they provide the proper level of carbon dioxide for ideal plant growth. "Like the old joke about the efficiency of meat-packing plants," says Hodges, "we are even using the squeal of the pig by tapping every beneficial...