一种新型污水处理设备

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Odor Control of Food Processing Operations by Air CleaningTechnologies (Biofiltration)1. INTRODUCTIONAs environmental awareness increases among the general public so do environmental restrictions among regulators. Odors emitted from food processing plants are becoming more of a concern as food plants and residential areas grow closer in proximiy. The objectionable odors in the food industry are generally a result of the physical processing of foods in which biological or chemical reactions form volatile organic compounds (VOC). These reactions are often precipitated by such processes as heating, drying, or smoking of foods. Odor thresholds are subjective among neighbors of processing plants and for this reason standard methods have been approved for testing odors.