| H2S
Control for Animal Housing Systems with Liquid Manure - Impermeable
Barriers
| Pro |
Con |
| Prevents transmission of dust and any particles 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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