Management Impacts on Ammonia Volatilization from Swine Manure

Panetta, D. M.; Powers, Wendy; Lorimor, Jeffrey C.

doi:10.31274/ans_air-180814-1378

Cited by 3 publications

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“…Therefore, on the basis of these results, it can be inferred that draining urine from the floors of barns immediately after excretion enhances mitigation of NH 3 emissions from the barn compared to the conventional scrape system. This concurs with previous studies that examined NH 3 mitigation within enclosed animal housing via urine‐feces separation (von Bernuth et al, 2005; Panetta et al, 2004; Swierstra et al, 2001; Braam et al, 1997a, 1997b).…”

Section: Resultssupporting

confidence: 92%

“…Because urea is only found in urine, and the urease enzyme that catalyzes urea hydrolysis is predominantly found in feces, it may be hypothesized that avoiding contact between feces and urine after excretion of these two compounds would mitigate NH 3 emissions from such excretions. Past studies have reported that reduction of NH 3 emissions ranging from 5 to 99% can be achieved by the separation of urine and feces in barns (Lachance et al, 2005; Stewart et al, 2004; Panetta et al, 2004; Braam et al, 1997a). No studies, however, have evaluated the impact of urine–feces separation on NH 3 emissions during postseparation storage of the separated urine or feces.…”

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Impact of Separating Dairy Cattle Excretions on Ammonia Emissions

et al. 2010

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About 80% of dairy cattle N intake is excreted in urine and feces. Urinary-N is about 75% urea, whereas fecal-N is mostly organic. Urinary-N (urea) can only be volatilized when it is hydrolyzed to ammonia (NH3) in a process catalyzed by urease, which is predominantly found in feces. Minimizing contact between urine and feces may be an effective approach to reducing urea hydrolysis and subsequent NH3 emissions. Previous studies have reported 5 to 99% NH3 emissions mitigation within barns from separation of feces and urine. The objective ofthis study was to compare NH3 emissions mitigation via separation of urine and feces in postcollection storage to a conventional scrape manure handling method where urine and feces are comingled. Laboratory scale studies were conducted to evaluate NH3 emissions from simulated postcollection storag of three waste streams: (i) idealistically separated feces and urine (no contact between urine and feces), (ii) realistically separated urine and feces (limited contact of urine and feces), and (iii) conventionally scraped manure (control). From the results of these studies, NH3 losses ranking in descending order was as follows: aggregate of realistically separated waste streams (3375.9 +/- 54.8 mg), aggregate of idealistically separated urine and feces (3047.0 +/- 738.0 mg), and scrape manure (2034.0 +/- 106.5 mg), respectively. Therefore, on the basis of these results, the extra effort of separating the waste streams would not enhance mitigation of NH3 losses from postcollection storage of the separated waste streams compared to the conventional scrape manure collection system.

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confidence: 92%

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Impact of Separating Dairy Cattle Excretions on Ammonia Emissions

et al. 2010

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“…Amon et al (1995) observed a decrease of 26% in ammonia concentration and emissions from growing piglets, but neither odor nor growing were improved. Panetta et al (2004) found similar values, but Ndegwa et al (2008) describe Yucca extracts as having a limited ammonia-binding capacity.…”

Section: Ammonia Fixing Agentsmentioning

confidence: 90%

Strategies for mitigation of nitrogen environmental impact from swine production

et al. 2010

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This work presents strategies that can be implemented in order to minimize the environmental impact of swine slurry on soil, water, and air. This reduction can be achieved through decrease in nitrogen excretion and ammonia emissions. The correct feed formulation according to animal requirements, the increase in diet digestibility and improvement in animal performance can reduce nitrogen excretion. The use of additives either in the diet or in the manure as well as some equipment rearrangements can reduce ammonia emission.

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Risk Analysis of Health Workers in Slaughterhouses Due to Ammonia Gas Exposure

Salamah¹,

Andriyani

2018

JKL

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Slaughterhouses was one part of the livestock industry. The livestock industry was a producer of ammonia emissions in the atmosphere. Ammonia has a negative impact on public health and the environment. This study aims to analyze the health risks to workers in slaughterhouses caused by ammonia gas exposure. The research design in this research was an observational research with cross-sectional design that used environmental health risk assessment (EHRA). The population of this research was workers in slaughterhouse, technique, sanitation and IPAL that consisting of 35 peoples. The measurement of ammonia gas was calculated used Spectrophotometer-Nessler method with wavelength 440 nm. The Air samples was taken at four points in the slaughterhouses Pegirian area. The result of the research indicated that the concentration of ammonia highest in slaughterhouses Pegirian of 0.025972 ppm (0.01806 mg/m3) and concentration ammonia lowest of 0.004364 ppm (0.00303 mg/m3). Based on the analysis of environmental health risks in mind that the value of RQ by 0.002781. The conclusion of this research is the exposure to ammonia gas at-risk population with 55 Kg weight at slaughtering houses Pegirian still within safe limits for the frequency of 250 days / year to 30 years. Advice that can be given is the need to improve the management company waste management as a source of ammonia emissions in slaughterhouses.

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Management Impacts on Ammonia Volatilization from Swine Manure

Cited by 3 publications

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Impact of Separating Dairy Cattle Excretions on Ammonia Emissions

Impact of Separating Dairy Cattle Excretions on Ammonia Emissions

Strategies for mitigation of nitrogen environmental impact from swine production

Risk Analysis of Health Workers in Slaughterhouses Due to Ammonia Gas Exposure

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