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What We’ll Cover Today Public Perception of Odors from Solid Waste Facilities Nature of Odors from Solid Waste Facilities Why Controlling Odors is So Difficult Dynamics of Odor Movement and Dilution Components of an Effective Odor Control System Questions/Comments ncmodorcontrol.com
Public Perception of Odors From Solid Waste Facilities ncmodorcontrol.com
Public Perception ncmodorcontrol.com
Public Perception ncmodorcontrol.com
Public Perception ncmodorcontrol.com
Nature of Odors 1) Odors can be categorized by their character (rotten egg, pungent, sweet, etc), their strength (parts per million) and their duration. 2) Odors can also be classified as being Fugitive or Point Source(s). Most odors at Landfills are Fugitive 3) Odors can be transient or steady-state ncmodorcontrol.com
Why Controlling Odors is So Difficult ? The fugitive nature of odors makes them difficult to intercept and treat The odors dilute in response to local winds and vary with atmospheric conditions (wind speed, stability). The dilution involves large air volumes Odorous sulfur containing compounds, such as dimethyl sulfide have very low threshold of odor perception - Hydrogen Sulfide (0.0047 ppm) - Ethyl Mercaptan (0.00019 ppm) - Dimethyl Sulfide (0.1 to 0.01 ppm) ncmodorcontrol.com
Visualizing Movement of Fugitive Dust Can Help Us Understand Movement of Odors ncmodorcontrol.com
Visualizing Fugitive Dust can help Us Visualize Odors ncmodorcontrol.com
A Typical Landfill Setting ncmodorcontrol.com
Dealing with Large Volumes, Low Concentrations of Odors ncmodorcontrol.com
Dynamics of Odor Plume Movement ncmodorcontrol.com
Dynamics of Odor Plume Movement ncmodorcontrol.com
Odor Plume Height vs Distance ncmodorcontrol.com
Elements of an Odor Control Strategy 1) Identify Odor Sources - Working Face - Fugitive Landfill Gas - Compost Windrows 2) Monitor Odors at your Facility 3) Treat Odors Near the Source ncmodorcontrol.com
Sources of Odors – Working Face ncmodorcontrol.com
Sources of Odors – Composting ncmodorcontrol.com
Sources of Odors – Fugitive Landfill Gas ncmodorcontrol.com
Continuously Monitor Odors and Wind ncmodorcontrol.com
Continuously Monitor Odors and Wind ncmodorcontrol.com
Continuously Monitor Odors and Wind ncmodorcontrol.com
Continuously Monitor Odors and Wind ncmodorcontrol.com
Continuously Monitor Odors and Wind ncmodorcontrol.com
Continuously Monitor Odors and Wind ncmodorcontrol.com
Layout of a Typical Monitoring System ncmodorcontrol.com
Odor Control Systems For fugitive odors, there are two categories of odor control systems: 1. Perimeter Systems - High pressure water based misting systems - Low pressure vapor systems 2. Source Based Systems - Mostly water based, high volume fan driven systems that direct neutralizer at the odor source ncmodorcontrol.com
Odor Control Systems Perimeter Misting Systems ncmodorcontrol.com
Odor Control Systems Perimeter Misting Systems ncmodorcontrol.com
Odor Control Systems Perimeter Vapor Systems ncmodorcontrol.com
Odor Control Systems Perimeter Vapor Systems ncmodorcontrol.com
Odor Control Systems Misting vs Vapor Systems ncmodorcontrol.com
Odor Control System Source Based Systems ncmodorcontrol.com
Odor Control Systems Source Based Systems ncmodorcontrol.com
Odor Control Systems Source Based Systems Source: Dust Boss ncmodorcontrol.com
Integrating the Odor Control System ncmodorcontrol.com
Integrating the Odor Control System ncmodorcontrol.com
Key Points Monitor both odors and wind at your site. This includes frequent staff patrols on-site and off- site Control odors at or near the source The greater the distance between your odor controls and the source, the lower the effectiveness Consider a two tier odor control system (Source and Perimeter Based) The delivery system of odor neutralizers is as important as the neutralizer Odor control system must be dynamic and respond to changing levels of odor emission ncmodorcontrol.com
Questions? Contact: Ray Kapahi Tel: 916-687-8352 Cel: 916-806-8333 E-Mail: ncmodorcontrol.ray@gmail.com