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Test Yourself—Donna Kaluzniak
Test Yourself What Do You Know About Odor Control?
Donna Kaluzniak
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1. Per Florida Administrative Code (FAC) 62-600,
Domestic Wastewater Facilities, wastewater treatment plants must be designed and located to minimize the effects of odors that could potentially harm human health or
a. cause excessive corrosion of metals. b. exceed the permit limit for methane gas. c. interfere with the enjoyment of life or property. d. stay within the buffer zone.
2. Per “Advanced Waste Treatment – A Field
Study Training Program” (Advanced Waste
Treatment), the main cause of most odors in wastewater systems is
a. carbon dioxide. b. hydrogen sulfide. c. methane. d. sulfur dioxide.
3. Per Advanced Waste Treatment, an example of organic gases found in wastewater treatment plants is
a. ammonia. b. carbon monoxide. c. dimethyl sulfide. d. mercaptans.
4. Per Advanced Waste Treatment, one of the oldest and most effective methods used for odor control is
a. addition of aluminum sulfate. b. chlorination. c. chromate addition. d. sulfonation. 5. Per the U.S. Environmental Protection Agency (EPA) “Biosolids and Residuals Management
Fact Sheet – Odor Control in Biosolids
Management” (Biosolids Odor Control Fact
Sheet), the most successful odor control programs are those that take what type of approach?
a. Alternative approach b. Holistic approach c. Limited approach d. Reductionist approach
6. Per the EPA’s Biosolids Odor Control
Fact Sheet, one of the most cost-effective approaches to odor control is to
a. conduct analytical testing of every process stage for odor-causing compounds. b. conduct odor modeling at the facility. c. examine the operation and maintenance practices at the facility. d. pilot-test various odor control methods.
7. Per EPA’s Biosolids Odor Control Fact Sheet, a tool to predict the impact of odors and help determine how much and what type of control will be necessary to minimize the impact of odor emissions is a
a. computerized air dispersion model. b. odor production study. c. neighborhood survey and analysis. d. standard wind speed and direction study.
8. Per Advanced Waste Treatment, hydrogen peroxide has been used for odor control for many years due to its effectiveness and lack of toxic byproducts. A disadvantage is its inability to treat
a. ammonia. b. hydrogen sulfide. c. methane gas. d. sulfur dioxide. 9. Per EPA’s Biosolids Odor Control Fact Sheet, which method removes odors using the adsorption and absorption of odor-causing compounds onto a natural media bed where microorganisms oxidize the compounds?
a. Activated carbon b. Biofilters c. Regenerative thermal oxidizers (RTOs) d. Wet scrubbers
10. Per Advanced Waste Treatment, an odor control method with limited success is accomplished by mixing the odorous compound with a control agent. This is referred to as
a. counter masking. b. dilution. c. masking. d. scrubbing.
Answers on page 54
References used for this quiz:
California State University, Sacramento; 2006. “Advanced Waste Treatment – A Field Study Training Guide”
Florida Administrative Code 62-600, Domestic Wastewater Facilities: https://www.flrules.org/gateway/ChapterHome. asp?Chapter 62-600
U.S. Environmental Protection Agency, “Biosolids and Residuals Management Fact Sheet – Odor Control in Biosolids Management”: https://www.epa.gov/sites/default/files/2018-11/ documents/order-control-biosolids-managementfactsheet.pdf
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