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Description: Liquid Stream Fundamentals: Odor Control
Liquid Stream Fundamentals: Odor Control
Odor control is an operational strategy utilized at water resource recovery facilities (WRRFs) and in the wastewater collection system to mitigate nuisance odors in the surrounding communities. Depending on the design criteria, odor control can assist with worker health and safety considerations, as well as decrease the production of corrosive conditions that impact the useful life of treatment system infrastructure. This fact sheet is part of a series on liquid stream fundamentals.
Author(s)
Water Environment Federation
Contributing authorsRyan McKennaChris Moody
SourceFact Sheet of the Water Science and Engineering Center
Project IDWSEC-2017-FS-028
CommitteeMRRDC
Sub CommitteeWEFTEC Session 306
Document typeFact Sheet
PublisherWater Environment Federation
Print publication date Oct 2017
Volume / Issue
Content sourceWater Science and Engineering Center
First / last page(s)1 - 7
Copyright2017
Word count4,115
Subject keywordsWastewater Treatment
Associated keywords:DesignOdors & Air Emisions
Chapter illustrations ()
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Description: Liquid Stream Fundamentals: Odor Control
Odor Generation
Liquid Stream Fundamentals: Odor Control
Odors are generated from every phase of wastewater management including collection, treatment, and disposal. Just as the character of the wastewater changes as it progresses through the treatment process, so do the odors released from that wastewater. All odor emissions from wastewater are considered objectionable, but some processes release larger odor volumes and more objectionable odors than...
PublisherWater Environment Federation
Copyright2017
Word count594
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Description: Liquid Stream Fundamentals: Odor Control
Odor Management Strategy
Liquid Stream Fundamentals: Odor Control
Unlike most operational aspects of a WRRF, odor emissions from the facility can have a direct, immediate, and most importantly, noticeable effect on the surrounding community. Odors from WRRFs are often perceived by the public as a nuisance and foul odors affect quality of life and can potentially affect property values.
PublisherWater Environment Federation
Copyright2017
Word count168
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Description: Liquid Stream Fundamentals: Odor Control
Testing and Characterization
Liquid Stream Fundamentals: Odor Control
Wastewater odors are typically sulfur- or nitrogen-based compounds, organic acids, aldehydes, and/or ketones. The odors most associated with WRRFs are H2S, reduced-sulfur organic compounds (mercaptans, dimethyl disulfide, and dimethyl sulfide), and to a lesser degree, nitrogen-based compounds. Odor sampling, measurement, and modeling are useful in the determination of which odorous...
PublisherWater Environment Federation
Copyright2017
Word count432
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Description: Liquid Stream Fundamentals: Odor Control
Mitigation of Odor Generation
Liquid Stream Fundamentals: Odor Control
The first step to controlling odors at a WRRF is the reduction of odor generated from the wastewater. Some reduction can often be accomplished through operational and housekeeping measures such as minimizing septic conditions, reducing turbulence, keeping access covers closed, managing sludge blanket depths, or adjusting activity times to minimize odor impacts. There are also a range of...
PublisherWater Environment Federation
Copyright2017
Word count957
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Description: Liquid Stream Fundamentals: Odor Control
Containment and Ventilation
Liquid Stream Fundamentals: Odor Control
A key factor for the success of any vapor-phase odor control system is the efficacy of the containment and ventilation equipment. Proper containment and ventilation includes structures and equipment, such as covers, ductwork, and fans, that maintain negative air pressure in the contained air space to ensure emissions are captured and conveyed to the odor control system. Typically, a fan is...
PublisherWater Environment Federation
Copyright2017
Word count211
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Description: Liquid Stream Fundamentals: Odor Control
Odorous Compound Treatment
Liquid Stream Fundamentals: Odor Control
Once the foul air has been captured and conveyed by use of covers, ductwork, and fans, the air is treated to remove odorous compounds. Vapor-phase odor treatment technologies commonly fall into one of four categories:
PublisherWater Environment Federation
Copyright2017
Word count1,572
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Description: Liquid Stream Fundamentals: Odor Control
References
Liquid Stream Fundamentals: Odor Control
WEF Municipal Resource Recovery Design Committee
PublisherWater Environment Federation
Copyright2017
Word count116
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Liquid Stream Fundamentals: Odor Control
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