A Study on the Air Flow and Odor Emission Rate from a Simplified Open Manure Storage Tank

1995 ◽  
Vol 38 (6) ◽  
pp. 1881-1886 ◽  
Author(s):  
Q. Liu ◽  
D. S. Bundy ◽  
S. J. Hoff
2001 ◽  
Vol 44 (9) ◽  
pp. 269-275 ◽  
Author(s):  
I. Edeogu ◽  
J. Feddes ◽  
R. Coleman ◽  
J. Leonard

The effects of agitation, liquid-only manure, depth and time on odour emission rates were investigated. Manure storage tanks were filled to incremental depths every two weeks. At each depth odour samples were collected twice. The second sample was collected seven days after the first. Odour concentration was measured with an olfactometer. Three different pig-manure treatments were investigated. In one treatment, slurry manure in a storage tank was agitated before and during odour sampling. In a second treatment, the settlable solids in manure were removed gravimetrically over 24 hours and liquid manure was pumped to a storage tank. In the third treatment (control), odour samples were collected from unseparated and undisturbed slurry manure. Overall, the odour emission rates in the agitated manure treatment ranged between 0.39 and 1.02 ou s−1 m−2, increased with depth and decreased with time, i.e. after seven days at each depth. In the liquid-only manure treatment, the emission rates ranged between 0.09 and 0.69 ou s−1 m−2, increased with depth but the effect of time was not evident. In the control treatment, the emission rates ranged between 0.20 and 0.66 ou s−1 m−2 and increased with depth on the first odour sampling day but decreased with depth on the second sampling day.


2006 ◽  
Vol 26 (11) ◽  
pp. 1259-1269 ◽  
Author(s):  
J. Nicolas ◽  
F. Craffe ◽  
A.C. Romain
Keyword(s):  

2021 ◽  
Vol 11 (8) ◽  
pp. 3700
Author(s):  
Enrico Davoli ◽  
Giancarlo Bianchi ◽  
Anna Bonura ◽  
Marzio Invernizzi ◽  
Selena Sironi

Bitumen-related production sites are facing increasing difficulties with nearby residents due to odor emissions. This parameter is still not regulated for these plants and little is known about the emissions that these plants have put into the atmosphere with the technologies available today. In this study, emission data from 47 Italian production plants were collected and analyzed to assess which values could describe the current situation in Italy. The results of the analysis showed that emissions are very variable, with odor concentration values between 200 to 37,000 ouE/m3, but data have a normal distribution. The mean value of the stack odor concentration was found to be 2424 ouE/m3. It was also possible to calculate emission factors of the plants, such as odor emission rate (OER), which represents the quantity of odor emitted per unit of time, and is expressed in odor units per second (ouE∙s−1) and odor emission factor (OEF) per ton of product, expressed in ouE/t. The values obtained were 7.1 × 104 ouE/s and 1.4 × 106 ouE/t. respectively. These data could provide a starting point for the definition of shared values among various stakeholders for the definition of regional guidelines for the emissions of these plants, in order to adjust available technologies towards emission parameters that are protective of the surrounding environment.


2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3538-3545 ◽  
Author(s):  
Crystal N. Johnson ◽  
Terence R. Whitehead ◽  
Michael A. Cotta ◽  
Robert E. Rhoades ◽  
Paul A. Lawson

A species of a previously unknown Gram-positive-staining, anaerobic, coccus-shaped bacterium recovered from a swine manure storage tank was characterized using phenotypic, chemotaxonomic, and molecular taxonomic methods. Comparative 16S rRNA gene sequencing studies and biochemical characteristics demonstrated that this organism is genotypically and phenotypically distinct, and represents a previously unknown sub-line within the order Clostridiales , within the phylum Firmicutes . Pairwise sequence analysis demonstrated that the novel organism clustered within the genus Peptoniphilus , most closely related to Peptoniphilus methioninivorax sharing a 16S rRNA gene sequence similarity of 95.5 %. The major long-chain fatty acids were found to be C14 : 0 (22.4 %), C16 : 0 (15.6 %), C16 : 1ω7c (11.3 %) and C16 : 0 ALDE (10.1 %) and the DNA G +C content was 31.8 mol%. Based upon the phenotypic and phylogenetic findings presented, a novel species Peptoniphilus stercorisuis sp. nov. is proposed. The type strain is SF-S1T ( = DSM 27563T = NBRC 109839T). In addition, it is proposed to accommodate the genera Peptoniphilus , Anaerococcus , Anaerosphaera , Finegoldia , Gallicola , Helcococcus , Murdochiella and Parvimonas in a new family of the order Clostridiales , for which the name Peptoniphilaceae fam. nov. is proposed; the type genus of the family is Peptoniphilus .


2012 ◽  
Vol 79 (2) ◽  
pp. 424-433 ◽  
Author(s):  
Maialen Barret ◽  
Nathalie Gagnon ◽  
Martin L. Kalmokoff ◽  
Edward Topp ◽  
Yris Verastegui ◽  
...  

ABSTRACTMethane emissions represent a major environmental concern associated with manure management in the livestock industry. A more thorough understanding of how microbial communities function in manure storage tanks is a prerequisite for mitigating methane emissions. Identifying the microorganisms that are metabolically active is an important first step. Methanogenic archaea are major contributors to methanogenesis in stored swine manure, and we investigated active methanogenic populations by DNA stable isotope probing (DNA-SIP). Following a preincubation of manure samples under anoxic conditions to induce substrate starvation, [U-13C]acetate was added as a labeled substrate. Fingerprint analysis of density-fractionated DNA, using length-heterogeneity analysis of PCR-amplifiedmcrAgenes (encoding the alpha subunit of methyl coenzyme M reductase), showed that the incorporation of13C into DNA was detectable atin situacetate concentrations (∼7 g/liter). Fingerprints of DNA retrieved from heavy fractions of the13C treatment were primarily enriched in a 483-bp amplicon and, to a lesser extent, in a 481-bp amplicon. Analyses based on clone libraries of themcrAand 16S rRNA genes revealed that both of these heavy DNA amplicons corresponded toMethanoculleusspp. Our results demonstrate that uncultivated methanogenic archaea related toMethanoculleusspp. were major contributors to acetate-C assimilation during the anoxic incubation of swine manure storage tank samples. Carbon assimilation and dissimilation rate estimations suggested thatMethanoculleusspp. were also major contributors to methane emissions and that the hydrogenotrophic pathway predominated during methanogenesis.


2016 ◽  
Author(s):  
Geoffrey Roest ◽  
Gunnar Schade

Abstract. The Eagle Ford Shale in southern Texas is home to a booming unconventional oil and gas industry, the climate and air quality impacts of which remain poorly quantified due to uncertain emissions estimates. We used the atmospheric enhancement of alkanes from Texas Commission on Environmental Quality volatile organic compound monitors across the shale, in combination with back trajectory and dispersion modeling, to quantify C2–C4 alkane emissions for a region in southern Texas, including the core of the Eagle Ford, for a set of 68 days from July 2013 to December 2015. Emissions were partitioned into raw natural gas and liquid storage tank sources using gas and headspace composition data, respectively, and observed enhancement ratios. We also estimate methane emissions based on typical ethane-to-methane ratios in gaseous emissions. The median emission rate from raw natural gas sources in the shale, calculated as a percentage of the total produced natural gas in the upwind region, was 0.8 % with an interquartile range (IQR) of 0.5 %–1.4 %, close to the U.S. Environmental Protection Agency's (EPA) current estimates. However, storage tanks contributed 24 % of methane emissions, 54 % of ethane, 82% percent of propane, 90 % of n-Butane, and 83 % of isobutane emissions. The inclusion of liquid storage tank emissions results in an emission rate of 2.2 % (IQR of 0.9 4.9 %) relative to produced natural gas, exceeding the EPA estimate by a factor of two. We conclude that leaks from liquid storage tanks are likely a major source for the observed non-methane hydrocarbon enhancements in the northern hemisphere.


2011 ◽  
Vol 61 (8) ◽  
pp. 872-881 ◽  
Author(s):  
Xiang Li ◽  
Tingting Wang ◽  
Chakkrid Sattayatewa ◽  
Dhesikan Venkatesan ◽  
Kenneth E. Noll ◽  
...  

2017 ◽  
Vol 17 (18) ◽  
pp. 11163-11176 ◽  
Author(s):  
Geoffrey Roest ◽  
Gunnar Schade

Abstract. The Eagle Ford Shale in southern Texas is home to a booming unconventional oil and gas industry, the climate and air quality impacts of which remain poorly quantified due to uncertain emission estimates. We used the atmospheric enhancement of alkanes from Texas Commission on Environmental Quality volatile organic compound monitors across the shale, in combination with back trajectory and dispersion modeling, to quantify C2–C4 alkane emissions for a region in southern Texas, including the core of the Eagle Ford, for a set of 68 days from July 2013 to December 2015. Emissions were partitioned into raw natural gas and liquid storage tank sources using gas and headspace composition data, respectively, and observed enhancement ratios. We also estimate methane emissions based on typical ethane-to-methane ratios in gaseous emissions. The median emission rate from raw natural gas sources in the shale, calculated as a percentage of the total produced natural gas in the upwind region, was 0.7 % with an interquartile range (IQR) of 0.5–1.3 %, below the US Environmental Protection Agency's (EPA) current estimates. However, storage tanks contributed 17 % of methane emissions, 55 % of ethane, 82 % percent of propane, 90 % of n-butane, and 83 % of isobutane emissions. The inclusion of liquid storage tank emissions results in a median emission rate of 1.0 % (IQR of 0.7–1.6 %) relative to produced natural gas, overlapping the current EPA estimate of roughly 1.6 %. We conclude that emissions from liquid storage tanks are likely a major source for the observed non-methane hydrocarbon enhancements in the Northern Hemisphere.


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