DPC 46, Dairy Odor Management

Item #: DPC-046

Published: 2001

Pages: 41

This guideline presents various ways to reduce or eliminate odor from dairy manure and other sources of odor on dairy farms. General information on odors and how they are perceived; the sources of odors; the importance of dairy farm site selection; and good management practices are covered. Methods for mechanical, chemical and biological control of odors are briefly discussed.

NOTE: This document was originally published in cooperation with the Natural Resource, Agriculture and Engineering Service (NRAES - formerly the Northeast Regional Agricultural Engineering Service, a cooperative program of 13 Land Grant Universities and the USDA). NRAES is no longer active in any form and has become part of Plant & Life Sciences Publishing (PALS) at Cornell University. This document in its present form has been discontinued under NRAES/PALS. It is currently archived under the DPC but is still available.

DISCLAIMER: The DPC is not responsible for the use or application of the information provided in this Guideline. It is the responsibility of the user to ensure that the information addresses their needs and that any action taken complies with appropriate regulations and standards.

Table of Contents:
Section 1: Introduction
     Odor as a Source of Conflict
     Air Quality versus Water Quality
Section 2: Odors — Detection, Perception, Characteristics, and Measurement
     The Sense of Smell
     Description of Odors
     Measurement of Odors
Section 3: Sources of On-Farm Odors
     Manure Gases
     Other Farm Odor Sources
     Physical Factors that Affect Odors
     Moisture Content
     Air Stability
     Spread of Odors
Section 4: Preventing and Reducing Odors from Livestock and Other Facilities
     Land-Use Planning
     Good Housekeeping
     Daily Manure Collection
     Cleaning Spills and Bedding
     Dust Reduction
     Paving and Grading Barnyards
     Disposing of Carcasses Promptly and Properly
     Other Odor-Reduction Measures
     Adding Windbreaks
     Installing Biofilters
     Ozonating Air
     Reducing Odors from Silage
     Reducing Milking Center Waste Odors
Section 5: Preventing and Reducing Odors from Manure Handling Systems
     Manure Storage Systems
     Covering Manure Storages
     Agitating Manure Storages
     Using Odor-Reducing Additives
     Manure Treatment Systems
     Anaerobic Digesters
     Anaerobic and Aerobic Lagoons
     Sequencing Batch Reactors
Section 6: Reducing Odors during Land Application
     Manure Characteristics
     Receiving Land Characteristics
     Daily Spreading

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DPC 46, Dairy Odor Management

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