Boiler Purposes
—This naturally will be selected from available sources based upon fitness, irrespective of cost.
Condensing
—First, for refrigerating machinery ammonia condensing and for steam engine condensing, in conjunction with the production of power and operating steam engines on refrigerating equipment. For this purpose cold water is desirable. If it can be obtained from wells it is the best practice, owing to such water usually being of low temperature. However, the cost of production must be considered, and that calls for engineering knowledge as to relative conditions. Usually, unless the surface water be in large quantity and available from a stream, the wells prove economical unless the water must be raised from great depths involving air lift pumping. There are instances, however, where turbidity makes water from streams undesirable and where well water is unobtainable, and in instances of this kind use of settling basins, reservoirs and cooling towers is resorted to.
For Cleaning and Other Purposes
—The water for cleansing purposes, for food products, fats and premises, should be clean and free from contamination that render it unfit for potable uses.
Sewage.
—The question of sewage disposal from a packing house is of more consequence than the water supply, which is usually determined by the relative cost. The former is a matter of disposition. No matter how carefully the refuse from the slaughtered animal is collected for passing through the rendering department, or how carefully the waters from cooking are collected for evaporation, quite large quantities of nitrogenous particles and many substances which are more cheaply disposed of by the way of the sewers, ultimately reach them. If the refuse finds its way to a rapidly flowing stream, it is taken care of by bacterial action, but if discharged into a dry stream or pool, or to a sewage disposal plant, it becomes a serious burden that sooner or later reverts to the packer.
Odors and Prevailing Winds.
—Naturally to minimize the distance of transport to stations for shipping or delivery to the consumer, or to be near to a supply of labor, every manufacturer is desirous of locating his works near to a city or on its outskirts, if not at a commercial stock yards. Where the latter are of comparatively large consequence to a community, the odors arising are usually considered a “necessary evil” and the packing plant as a part of that.