Operator Exposure to Hydrogen Sulfide from Dairy Manure Storages Containing Gypsum Bedding

2017 ◽  
Vol 23 (1) ◽  
pp. 9-22 ◽  
Keyword(s):  
Hydrogen Sulfide ◽  
Dairy Manure

scholarly journals Methane and Hydrogen Sulfide Production from Co-Digestion of Gummy Waste with a Food Waste, Grease Waste, and Dairy Manure Mixture

Energies ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4464 ◽  
Author(s):  
Choudhury ◽  
Lansing
Keyword(s):  
Hydrogen Sulfide ◽  
Food Waste ◽  
Dairy Manure ◽  
Organic Substrates ◽  
Dairy Farmers ◽  
Volatile Solids ◽  
Hydrogen Sulfide Production ◽  
Farm Scale ◽  
Low Sulfur ◽  
Mass Basis

Co-digestion of dairy manure with waste organic substrates has been shown to increase the methane (CH4) yield of farm-scale anaerobic digestion (AD). A gummy vitamin waste (GVW) product was evaluated as an AD co-digestion substrate using batch AD testing. The GVW product was added at four inclusion levels (0%, 5%, 9%, and 23% on a wet mass basis) to a co-digestion substrate mixture of dairy manure (DM), food-waste (FW), and grease-waste (GW) and compared to mono-digestion of the GVW, DM, FW, and GW substrates. All GVW co-digestion treatments significantly increased CH4 yield by 126–151% (336–374 mL CH4/g volatile solids (VS)) compared to DM-only treatment (149 mL CH4/g VS). The GVW co-digestion treatments also significantly decreased the hydrogen sulfide (H2S) content in the biogas by 66–83% (35.1–71.9 mL H2S/kg VS) compared to DM-only (212 mL H2S/kg VS) due to the low sulfur (S) content in GVW waste. The study showed that GVW is a potentially valuable co-digestion substrate for dairy manure. The high density of VS and low moisture and S content of GVW resulted in higher CH4 yields and lower H2S concentrations, which could be economically beneficial for dairy farmers.

WHEAT STRAW COVER FOR REDUCING AMMONIA AND HYDROGEN SULFIDE EMISSIONS FROM DAIRY MANURE STORAGE

1999 ◽  
Vol 42 (4) ◽  
pp. 1095-1102 ◽  
Author(s):  
S. K. Xue ◽  
S. Chen ◽  
R. E. Hermanson
Keyword(s):  
Hydrogen Sulfide ◽  
Wheat Straw ◽  
Dairy Manure ◽  
Manure Storage

Methane and hydrogen sulfide production during co-digestion of forage radish and dairy manure

2015 ◽  
Vol 80 ◽  
pp. 44-51 ◽  
Author(s):  
Ashley J. Belle ◽  
Stephanie Lansing ◽  
Walter Mulbry ◽  
Ray R. Weil
Keyword(s):  
Hydrogen Sulfide ◽  
Dairy Manure ◽  
Sulfide Production ◽  
Hydrogen Sulfide Production

Iron Oxide to Mitigate Hydrogen Sulfide Gas Release from Gypsum-Bedded Dairy Manure Storages

2018 ◽  
Vol 61 (3) ◽  
pp. 1101-1112 ◽  
Author(s):  
Long Chen ◽  
Michael L. Hile ◽  
Eileen E. Fabian ◽  
Zhanxiong Xu ◽  
Mary Ann Bruns ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Iron Oxide ◽  
Electrochemical Sensors ◽  
Statistical Tests ◽  
Dairy Manure ◽  
Molar Ratio ◽  
Gas Release ◽  
Oxide Hydroxide ◽  
High Concentrations ◽  
Nutrient Analyses

Abstract. To mitigate noxious hydrogen sulfide (H2S) gas release that has been observed from gypsum-laden dairy manure, three additives were studied in sequential investigations. Three trials with specific aims were conducted using experimental vessels containing 15 kg of dairy manure each. Trial 1 investigated two additives: iron oxide (specifically, iron oxide-hydroxide, FeOOH) and a proprietary gypsum-lime based product (DriMatt). Trial 2 investigated effective ratios of gypsum to iron oxide and a modified DriMatt additive, and trial 3 evaluated iron oxide at the most effective ratio. Manure agitation events were monitored in the first two trials, while gas releases were continuously monitored in trial 3 during and between agitations. Hydrogen sulfide concentrations were captured using electrochemical sensors or a Fourier transfer infrared (FTIR) gas analyzer assembly over an incubation period of two months for the first two trials and over 40 days for the third trial. Additionally, nutrient analyses were performed for each trial. Extremely high concentrations of H2S were observed during most manure agitation events (500 to 8000 ppm), while minimum releases (<10 ppm) were found when samples were static. Means of maximum concentrations of H2S were compared among treatments in each trial. Statistical tests showed that adding iron oxide to gypsum-laden manure reduced H2S production by an average of 94% compared to treatments without iron oxide. With a 1:1 molar ratio of iron oxide to gypsum, the level of H2S released was diminished to as low as the control manure (without gypsum). Therefore, iron oxide is a promising additive to mitigate H2S production in gypsum-laden dairy manure during agitation events. Keywords: Additive, Dairy, Gas, Gypsum bedding, Hydrogen sulfide, Iron oxide, Manure, Safety, Storage.

Performance and Economic Results for Two Full-scale Biotrickling Filters to Remove H2S from Dairy Manure-derived Biogas

2019 ◽  
Vol 35 (3) ◽  
pp. 283-291 ◽  
Author(s):  
Timothy James Shelford ◽  
Curt A Gooch ◽  
Stephanie A Lansing
Keyword(s):  
Renewable Energy ◽  
Hydrogen Sulfide ◽  
Anaerobic Digestion ◽  
Corrosion Damage ◽  
Dairy Manure ◽  
Maintenance Costs ◽  
Biotrickling Filters ◽  
Operational Costs ◽  
Key Phrases ◽  
Generator Sets

Abstract. Anaerobic digestion (AD) of dairy manure produces renewable energy in the form of biogas. Hydrogen sulfide (H2S) is formed in the produced biogas in variable quantities (up to 8,000 ppmv). H2S can cause corrosion damage to biogas-fueled engine-generator sets (EGSs), resulting in high operating temperatures, high maintenance costs, and/or lost revenues for farmers. Biotrickling filters are a common technology for H2S removal, however, there is a need for information about the performance, capital, and operational costs associated with biotrickling filters to better inform producers using or considering such systems. Keywords: Click here to enter keywords and key phrases, separated by commas, with a period at the end

ODOR AND HYDROGEN SULFIDE EMISSION FROM A DAIRY MANURE STORAGE

2013 ◽  
Author(s):  
José R. Bicudo ◽  
Kevin A. Janni ◽  
Larry D. Jacobson and David R. Schmidt
Keyword(s):  
Hydrogen Sulfide ◽  
Dairy Manure ◽  
Manure Storage
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