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| Publication: |
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Operation of Municipal Wastewater Treatment Plants
Manual of Practice-MOP 11 Sixth Edition
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| Medium: |
| Download Chapter |
| Pages |
| 47 |
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Water Environment Federation (WEF) |
| Year: |
| 2007 |
| Order No: |
| MOP1113 |
| DOI |
| 10.2175/1-57278-232-3-13 |
Table of Contents
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Index
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| Cover Art |
Front Matter
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| Order Additional Chapters of MOP 11 |
Order a Hard Copy of MOP 11
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Abstract:
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The collection, treatment, and disposal of municipal and industrial wastewater often emit odors and other air contaminants. In the past, odors commonly associated with wastewater treatment plant operation were accepted by the public. This is no longer the case. There is increasing public concern and intolerance of odors and other air contaminants from wastewater treatment facilities, and management of air emissions has become a significant activity at most treatment plants. Furthermore, federal, state, and local regulations require that a number of air pollutants be contained and controlled. Today, odors, whether a health and safety issue or a nuisance condition, are not tolerated by the community. In fact, odors have been rated as the first concern of the public regarding wastewater treatment facilities. Once a facility has been marred for any reason, including odor, it is very difficult to change the image of the treatment facility in the mind of the public.
Factors contributing to the prevalence of odor concerns include construction of large, regional facilities with long septic travel times in the collection system; urbanization that moves people and industry closer to plant sites; increasing amounts of more complex industrial wastewater discharges; environmental regulations requiring a higher level of treatment; wastewater treatment plant design; facility operation and maintenance; and a more informed citizen who is concerned with the health and safety aspects of public services. Consequently, present wastewater treatment facility design, construction, and operation must address odor concerns as a high priority. In addition, corrosion problems are usually associated with odor detection. Solving an odor problem can minimize corrosion of concrete, including sewer pipe walls, exposed metal, and paints. Odors, particularly hydrogen sulfide, also contribute to the corrosion of galvanized structures and electronics.
Today, in addition to operating wastewater treatment facilities to meet water-quality objectives that protect and preserve limited natural water resources, facilities must provide adequate odor control that the public finds acceptable. This is a difficult task because the realm of odor control is subjective, and the final judge, according to the law or public acceptance, is the human nose.
This chapter is intended to be a reference of practice for operators involved in managing air emissions from wastewater conveyance and treatment facilities. This chapter provides information on odor measurement and characterization as well as the mechanisms of odor generation in both the collection system and treatment processes. Significant changes in the revised version of this chapter are in the discussion of appropriate odor control methods and technologies, as many innovative treatment technologies have been introduced in the past several years. Operation and maintenance requirements for control equipment are also included. Finally, odor control strategies for the operator are discussed, providing a sequence of steps to consider when approaching an odor control problem.
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| Member Price: $20.00 |
| List Price: $27.00 |
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©2000 Water Environment Federation