Seattle was the site for the second Waste to Worth conference (March 30-April 3, 2015). Each proceedings paper include a one-page submission by the author, presentation slides and (90% of the time) a recording of the presentation.
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Meeting agenda | Abstract/Presenter | Topic
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Topic
| Species | ||
| Dairy | Beef | Swine – Pigs | Poultry | Equine – Horses | ||
| Topics | ||
| Air Quality | Economics & Value of Manure | Outreach Tools for Ag Professionals |
| Manure Treatment (all) –Anaerobic Digestion – Separation –Composting |
Climate Change & Greenhouse Gases | Nutrient Management (all) – Phosphorus – Nitrogen |
| Small Farms | Manure Storage & Handling | Environmental Planning & Farming Systems |
| Mortality Management – emphasis on composting |
Water Quality & Management | Grazing Animals |
Grazing Animals
Grazing in a changing climate: adaptive management Derner
Equine pasture management introduction Siciliano
Measuring pasture dry matter intake of horses Siciliano
Improving pasture utilization by optimizing horse preference Martinson
Effects of rotational grazing on nutrient content of a mixed grass horse pasture McIntosh
Existing equine pasture best management survey findings Swinker
Air Quality
Economics & value of manure
Economics of N in a long-term cropping system Flores
Manure storage
Evaporation pond – waste storage design spreadsheet Hanson
Manure treatment
Manure Treatment: Anaerobic digestion
Manure Treatment: Solid-liquid Separation, Aeration, Markets
Field scale management of separated dairy manure fractions Haak
Low-power aerators combined with center pivot manure application at a NE hog finisher Melvin
Gasification of animal manures – another tool for the toolbox Porter
Gas reduction benefits of anaerobic digestion & separation Holly
Panel Discussion – Expanding markets for manure treatment technologies
Manure Treatment: Composting
| Equine/Horse Manure | Mortalities | Dairy Barns |
| Horse manure composting: facilities & methods Bonhotal Low cost aerated static composting or small equine operations Hashemi Use of compost as an alternative horse stall bedding Youngquist |
Composting horse mortality and mortality disposal alternatives Bonhotal Mortality and Manure Management in a Farm Biosecurity Plan for PEDV #2: Swine mortality compost Schmidt |
Sustainable Dairy Housing / Manure System: Compost Bedded Loose Barn Taraba |
| Pathogens, Herbicides | Economics | |
| Case study of contaminated compost: collaborations to mitigate persistent herbicide residues Greene Mortality and Manure Management in a Farm Biosecurity Plan for PEDV #1: Manure composting Schmidt Composting swine slurry to reduce indicators & antibiotic resistance genes Cook |
Markets for composted agricultural waste Bogardus | |
Water Quality & Management
What are the sources of bacteria in your watershed? Wagner
Evaluation of reports on NO3 in wells in the Yakima Basin Lazarus
Nutrient Management
Nitrogen
NO3 testing protocol for lands receiving injected manure Meinen
Economics of N in a long-term cropping system Flores
Overwinter fate of fall-applied manure N Chantigny
Fate of manure N applied for grass silage Harrison
Evaluation of reports on NO3 in wells in the Yakima Basin Lazarus
How much N in dairy rations is partitioned to milk, manure, crops & environmental loss? Powell
Variation in state-based manure N availability approaches Lory
Phosphorus
Methods to refine P indices from three regional indexing efforts Sharpley
Modeling P runoff in the Chesapeake Bay region to test the P Index Kleinman
Estimation of P loss from ag land in the South using the APEX, TBET, & APLE models Osmond
Estimation of P loss from ag land in the Heartland using the APEX model: evaluating P indices Lory
Phosphorus Indices: What is the water quality goal? Osmond
Perspectives on the P Index – nutrient management planner surveys in NY, PA & DE Kleinman
User capabilities and next generation P indices Lory
Checking ambition with reality – Pros & cons of national vs regional vs local P index Kleinman
How legacy nutrients affect farm conservation Sharpley
Organic & inorganic soil P after long-term litter amendment: effects of rate & land-use Waldrip
Removing P from drainage water: the P removal structure Payne
Relationship between surface waters & ditch sediment in selected Eagle Creek tributaries Williams
More…
Fertilizer value of swine manure: Comparing a lagoon & deep pit slurry Chastain
Effect of litter, swine effluent, & biosolids on plot pathogen, antibiotic resistance, & nutrient levels Brooks
Plant nutrient & carbon content of equine manure as influenced by stall management Chastain
Wood chip pad winter feeding area for manure management Basden
Evaluation of feed storage runoff water quality & collection design Larson
Implementation of a manure Application Risk Management (ARM) system Embertson
Initial evaluation of vegetated treatment areas for runoff from small swine operations Harmel
Effect of woody biochar amendment to sand on nutrient leaching with dairy manure Bradley
A new amendment for reducing NH3 volatilization & P runoff from poultry litter Moore
The importance of nitrogen stabilization Galloway
Electrolysis of swine manure effluents using three different electrodes Rahman
Manure separation: bedding & nutrient recovery Lenkaitis
Enhancing the recovery of P from scraped dairy manure using process effluent Ogejo
Improved recovery of NH3 from swine manure using gas-permeable membranes & aeration Vanotti
Utilizing acid-tolerant nitrifying bacteria to generate acidity needed to operate NH3 scrubbers Moore
Factors affecting household use of organic fertilizer McCann
Industrial scale production of amino acid fertilizer from fish waste Ovissipour
Manure hauler education improves implementation of NMPs Halopka
Whole farm walkovers prioritize soil & water management Klingberg
The Pathways Project Cortus
Effects of observability & complexity on adopting env. practices McCann
A primer on available & emerging N, P, & salt recovery – performance & cost Ma
A profitable process for the removal of N & P from waste streams Burke
Farm-based anaerobic digestion – wastewater & nutrient considerations Yorgey
Environmental Planning & Farming Systems
Effects of observability & complexity on adopting env. practices McCann
Farming Systems Lally
Using solar to provide animals with water while protecting water quality Hawkins
Coupling anaerobic digesters with greenhouses Gooch
Making dairy manure more valuable than milk Freund
A look at North Carolina’s clean energy future Simmons
Pathogens and Pharmaceuticals
What are the sources of bacteria in your watershed? Wagner
Antibiotic losses during thermophilic composting Bary
Effect of litter, swine effluent, & biosolids on plot pathogen, antibiotic resistance, & nutrient levels Brooks
Abundance & fate of fecal indicators, pathogens & antibiotic resistant bacteria in a vegetated system receiving feedlot runoff Durso
Manure irrigation: Airborne pathogen transport & assessment of technology use in Wisconsin Larson
Surface runoff transport of E. coli after litter application on pasture Payne
Abundance & fate of antibiotics & hormones in a VTS receiving cattle feedlot runoff Miller
Antibiotic degradation during anaerobic digestion & effects of antibiotics on biogas Mitchell
Dairy cationic polymers & high-speed centrifugation effects on pathogens during separation Liu
Environmental antibiotic resistance bacteria & genes: A link to public health? Roberts
Composting swine slurry to reduce indicators & antibiotic resistance genes Cook
Mortality and Manure Management in a Farm Biosecurity Plan for PEDV Schmidt #1: Manure composting | #2: Swine mortality compost
Small Farms
Low tech waste to energy applications in developing countries Bledsoe
Value of manure on small to mid-sized farms through compact anaerobic digestion Afghan
Greenhouse Gases & Climate Change
Changes, Challenges, and Opportunities for Animal Agriculture (Grand Ballroom) Czymmek, Henry, Matlock, Hayes, Rotz
Mortality Management
Composting horse mortality and mortality disposal alternatives Bonhotal
Multi-specie mortality composting demonstrations in SW Neb Hicks
Mortality and Manure Management in a Farm Biosecurity Plan for PEDV Schmidt Swine mortality compost
Dairy
Open lot dairy NH3 losses & N balance Todd
Ammonia & nitrous oxide model for open lot cattle Bonifacio
Regulating NH3 from ag: potential pitfalls & limitations Shaver
Controlling NOx is effective strategy to reduce PM in San Joaquin Valley Villegas
PM from open lot dairies & cattle feeding: recent developments Auvermann
Impact of aerosols on respiratory health of dairy workers & nearby residents Reynolds
Estimation of infectious risks in residents near dairy wastewater spraying Dungan
A novel system for treatment of dry-lot manures Loetscher
How much N in dairy rations is partitioned to milk, manure, crops & environmental loss? Powell
The dairy bio-refinery Yorgey
Discharge quality water from dairy manure: McLanahan Nutrient Separation System Wallace
Life cycle GHG emissions of dairy & bioenergy Aguirre-Villegas
LCA of GHG emissions from a dairy farm co-digesting manure & food waste Ebner
Improving estimate of enteric CH4 emissions from cattle: A meta-analysis Liu
Effect of woody biochar amendment to sand on nutrient leaching with dairy manure Bradley
Measuring N2O & CH4 emissions from feedyard surfaces; NFT-NSS chamber technique Casey
Enhancing the recovery of P from scraped dairy manure using process effluent Ogejo
Dairy cationic polymers & high-speed centrifugation effects on pathogens during separation Liu
Making dairy manure more valuable than milk Freund
Adapting dairy farms to climate change Rotz
Sustainable Dairy Housing / Manure System: Compost Bedded Loose Barn Taraba
Beef
Regulating NH3 from ag: potential pitfalls & limitations Shaver
Ammonia & nitrous oxide model for open lot cattle Bonifacio
A novel system for treatment of dry-lot manures Loetscher
Improving estimate of enteric CH4 emissions from cattle: A meta-analysis Liu
Effect of protein supplement on low-quality forage diets on enteric CH4 production of steers Cole
Measuring N2O & CH4 emissions from feedyard surfaces; NFT-NSS chamber technique Casey
Abundance & fate of antibiotics & hormones in a VTS receiving cattle feedlot runoff Miller
Poultry
Poultry digestion: emerging farm opportunity Frear
Effect of litter, swine effluent, & biosolids on plot pathogen, antibiotic resistance, & nutrient levels Brooks
A new amendment for reducing NH3 volatilization & P runoff from poultry litter Moore
Practical use & application of poultry C-footprint tool: Comparing two broiler farms Dunkley
Effects of treated poultry litter on potential GHG emission & field application Bolu
Swine – Pigs
Fertilizer value of swine manure: Comparing a lagoon & deep pit slurry Chastain
Effect of litter, swine effluent, & biosolids on plot pathogen, antibiotic resistance, & nutrient levels Brooks
Initial evaluation of vegetated treatment areas for runoff from small swine operations Harmel
Electrolysis of swine manure effluents using three different electrodes Rahman
Feeding strategies to mitigate cost & environmental footprint of pig production Burek
Improved recovery of NH3 from swine manure using gas-permeable membranes & aeration Vanotti
Composting swine slurry to reduce indicators & antibiotic resistance genes Cook
Mortality and Manure Management in a Farm Biosecurity Plan for PEDV Schmidt #1: Manure composting | #2: Swine mortality compost
Equine – Horses
Equine pasture management introduction Siciliano
Measuring pasture dry matter intake of horses Siciliano
Improving pasture utilization by optimizing horse preference Martinson
Effects of rotational grazing on nutrient content of a mixed grass horse pasture McIntosh
Existing equine pasture best management survey findings Swinker
Plant nutrient & carbon content of equine manure as influenced by stall management Chastain
Environmental management on equine farms: the good, bad, and ugly Westendorf
Horse manure composting: facilities & methods Bonhotal
Low cost aerated static composting or small equine operations Hashemi
Markets for composted agricultural waste Bogardus
Case study of contaminated compost: collaborations to mitigate persistent herbicide residues Greene
Use of compost as an alternative horse stall bedding Youngquist
Reducing hay waste associated with outdoor feeding of adult horses Martinson