Disposal Overview Adapted from the FAD PReP/NAHEMS Guidelines: Disposal (2012)

Disposal

Overview

Adapted from the FAD PReP/NAHEMS Guidelines: Disposal (2012)

• Responder roles and responsibilities• Overview of disposal methods• Selection considerations• Classification of waste materials

USDA APHIS and CFSPHFAD PReP/NAHEMS Guidelines: Disposal - Overview

This Presentation

Roles and Responsibilities


Incident Command System

• Used to manage people and resources

• Disposal Group personnel– Operations

Section

– Vary depending on incident size and scope


• Disposal Group Supervisor–Makes disposal method

recommendations

– Organizes and directs disposal activities

• Disposal Group Team Leader– Ensures disposal procedures are

carried out

• Team Members– Perform disposal activities


Disposal Group Personnel

• Cooperation and communication– State Veterinarian

– State Agency for Environmental Protection

– Appraisal Group and Compensation Unit

– Euthanasia Group

– Biosecurity Group

– Cleaning and Disinfection Group


Preparation

Specific Disposal Methods


• Decomposition method– Carcasses placed between layers of

carbon rich organic materials

– Aerobic process

– Nitrogen provided by carcasses

– Carbon provided by plant materials (co-compost/cover materials)


Composting Overview

• Uses heat to convert carcasses into – Protein-based solids

–Water

–Melted fat/tallow

• Inedible products• Dry rendering• Batch or continuous

throughput USDA APHIS and CFSPHFAD PReP/NAHEMS Guidelines: Disposal - Overview

Rendering Overview

• Three types of permitted landfills– Construction and

demolition

– Hazardous waste

–Municipal solid waste• Used for catastrophic

carcass disposal


Permitted Landfill Overview

• Carcasses or waste materials placed in trench, earthen hole, or pit

• Buried materials degrade over time

• Leachate produced– Groundwater

contamination possible

• Heavy equipment needed


Unlined Burial Overview

• High-temperature combustion • Three methods– Fixed facility incineration• Highly controlled and effective

– Open-air (uncontrolled) burning• Poorly controlled, negative air quality effects

– Air-curtain incineration • Forced air and fuel improve efficiency


Thermal Methods Overview

• Disposal options in development– Lactic acid fermentation

– Gasification

– In situ plasma vitrification

– Alkaline hydrolysis

• Drawbacks– Expensive

– Used in highly specialized operations

– Sized for routine use USDA APHIS and CFSPHFAD PReP/NAHEMS Guidelines: Disposal - Overview

Novel Disposal Methods

Site-Specific Disposal Method Selection Criteria


• Regional limitations• Safety considerations• Animals to be disposed– Biomass (including by-products)

– Equipment

– Species

– Personnel

• Temporary storage


Disposal Method Selection

• Environmental– Air and water quality

– Soil integrity

• Biosecurity– Transportation (human/vehicular traffic)

–Wildlife and scavengers

– Impact human and/or animal health


Avoiding Negative Impacts

Waste Classificationand Disposal


• All non-nuclear waste designated as “solid”– Hazardous (solid) waste

–Medical/infectious (solid) waste

• Utilize professionals to help classify waste


Classification Overview

• Waste materials can include:– Liquid wastes (milk, wastewater, etc.)

–Manure, litter, slurry

– Livestock feeds

• Disposal methods vary according to pathogen –May include burning, burial, composting,

or landfilling


Associated Waste Materials

• FAD PReP/NAHEMS Guidelines & SOP: Disposal (2012)– http://www.aphis.usda.gov/animal_h

ealth/emergency_management/

• Disposal web-based training module– http://naherc.sws.iastate.edu/


For More Information

http://www.aphis.usda.gov/animal_health/emergency_management/



https://naherc.sws.iastate.edu/

Authors• Reneé Dewell, DVM, MS (CFSPH)• Tom Glanville, PhD (Iowa State

University)

Significant contributions to the content were provided by USDA APHIS VS:• Lori P. Miller, PE• Darrel K. Styles, DVM, PhD


Guidelines Content

Acknowledgments

Development of this presentation was

by the Center for Food Security and

Public Health at Iowa State University

through funding from the USDA APHIS

Veterinary Services

PPT Author: Kerry Leedom Larson, DVM, MPH, PhD, DACVPM

Reviewers: Janice Mogan, DVM; Reneé Dewell, DVM, MS

Disposal Overview Adapted from the FAD PReP/NAHEMS Guidelines: Disposal (2012)

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