This 60 minute webinar presents an overview of the lagoon ammonia removal process and an evaluation of options to achieve compliance.
• Why lagoon ammonia is being regulated
• The nitrification process
• 6 key factors for nitrification: BOD, dissolved oxygen, pH, biomass, temperature, mixing
• Nitrification options: including mechanical plant replacement, modified discharge, in-lagoon media, aerated rock filter, nitrification reactor
• Lagoon ammonia removal case studies
2:20 Triplepoint overview
2:58 Lagoons Do It Better
5:22 Review of technologies
6:50 Lagoons Do It Better Community
8:05 What is ammonia?
8:54 Nitrogen Forms & Categories
9:55 Where does it come from?
11:00 Why: Ammonia is toxic to fish
11:32 Why lagoons?
12:20 Why: pounds of ammonia
13:15 Why: Gulf of Mexico deadzone
13:57 How? Nitrification
15:05 Autotrophs vs Heterotrophs
16:38 1. Nitrification Conditions: BOD
17:27 2. Nitrification Conditions: Aeration
20:07 3. Nitrification Conditions: pH & Alkalinity
21:29 4. Nitrification Conditions: Nitrifier Mass
23:05 5. Nitrification Conditions: Temperature
24:35 Why lagoons fail to nitrify
25:26 Nitrification options
26:00 Mechanical plant conversion
28:27 Discharge modification
31:37 Process solutions: In-lagoon media
36:41 In-lagoon media: Performance
36:44 Process solutions: aerated rock filter
40:56 Process solutions: cover & reactor
43:51 NitrOx process
45:34 Controlled biomass
46:24 Controlled biomass (2)
47:14 Controlled mixing & aeration
48:08 Controlled temperature
50:11 Controlled temperature (2)
52:08 Operational requirements
53:06 Lagoon upgrade
53:37 Cost case study: Sample WWTP
54:14 Sample case: lifecycle costs
55:57 Sample case: lifecycle costs (2)
56:49 Hillcrest layout & photos
58:06 Nitrification reactor summary
Preapproved for 1 continuing education hour in Alaska, Arizona, California, Idaho, Illinois, Indiana, Louisiana, Maine, Montana, New Hampshire, New Mexico, Ohio, South Dakota, Vermont, Washington, and Wyoming. Likely accepted in states that do not preapprove CEUs, such as Alabama and South Carolina. Eligible for PDH credit in all states.
About the instructor
Patrick Hill is a lagoon specialist for Triplepoint Environmental, a company dedicated to providing cutting edge and cost-effective solutions for wastewater lagoons across North America. After graduating from the University of Notre Dame, Patrick began his career working for the reputable civil engineering firm, Sheaffer & Roland, Inc., which focuses on the design, build and operation of wastewater treatment lagoon systems. He joined Triplepoint, based in Centennial, Colorado, in 2007, and has since worked with hundreds of lagoon owners to help extend the life of lagoon systems, improve efficiency, expand capacity and meet new effluent requirements. Patrick has presented on lagoon topics at dozens of conferences across the country and at the Water Environment Federation’s annual conference (WEFTEC).