H2S Control
for Animal Housing Systems with Dry Manure - Barriers
| Pro |
Con |
| Prevents transmission of dust and any particulates carried on the dust |
In some cases, may just change the shape and direction of the plume |
An alternative to filtering particles during
air movement is to stop the movement altogether. Windbreak walls
or air dams have proven effective in reducing downwind, dust
particle concentrations, and odor concentration. However, no
data is currently available regarding hydrogen sulfide. Windbreak
walls have been constructed with 10-feet ´ 10-feet pipe
frames and tarpaulins, and placed at the end of swine-finishing
buildings, immediately downwind of the exhaust fans. Downwind
dust and odor concentrations were reduced on demonstration facilities,
in areas with windbreak walls, due to plume deflection. Depending
on the materials used for the barriers (tarpaulins on a frame
or solid wood, for example) the life of the barrier could be
from a few years to decades before replacement is needed.
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