Laboratory evaluation of abatement measures for mitigating dust emission from cattle feedlots

E. B. Razote, R. G. Maghirang, J. P. Murphy, B. W. Auvermann, J. P. Harner, T. V. Pjesky, W. L. Hargrove

Research output: Contribution to conferencePaperpeer-review


Measures for mitigating dust emission from cattle feedlots were evaluated by using a laboratory chamber. The chamber, which has a cross section of 0.61 m × 0.61 m and a length of 3.7 m, has a layer of dry, loose, sieved feedlot manure above a compacted soil. The vertical movement of a cattle hoof was simulated by dropping a 4.5-kg steel weight onto the manure surface. High-volume samplers for PM 10 (particulate matter smaller than 10-μm aerodynamic equivalent diameter) were used to collect suspended PM 10. The applications of wheat straw, sawdust (242, 484, 726 g/m 2), and surface water (3.2 and 6.4 mm) on dust emission were investigated by using a 10-cm manure depth and 54-J drop energy of the steel weight. Results indicated that addition of wheat straw, sawdust, or water to the manure surface significantly decreased PM 10 emission potential. The addition of magnesium chloride and an organic-based substance on the manure surface to control PM 10 emission potential was also investigated and compared with surface water application; a manure depth of 10 cm, wet layer of 6.4 mm, and drop energy of 27 J were used. Surface applications of magnesium chloride and water did not result in any significant difference in PM 10 emission potential. As the wet layer dried up, however, emission potential was significantly greater from the manure surface treated with magnesium chloride than from the water treatment. The manure treated with the organic-based substance had slightly greater emission potential immediately after application than did manure treated with magnesium chloride and water; but manure treated with the organic-based substance had the least emission potential during subsequent tests.

Original languageEnglish (US)
StatePublished - 2005
Externally publishedYes
Event2005 ASAE Annual International Meeting - Tampa, FL, United States
Duration: Jul 17 2005Jul 20 2005


Other2005 ASAE Annual International Meeting
Country/TerritoryUnited States
CityTampa, FL


  • Cattle feedyard
  • Dust control
  • Pm emission

ASJC Scopus subject areas

  • General Agricultural and Biological Sciences
  • Bioengineering


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