The Rural Voice, 1998-07, Page 25a wall or post in the pit.
Release of hydrogen sulphide
stops when agitation stops, however,
it will only be safe when the air space
above the manure has been
completely changed. Pit fans sized at
20 to 30 per cent of the maximum
ventilation rate can ensure that the air
goes down through the slats and does
not come up into the animal zone.
While doing this the wall fans should
be turned off because the extra
incoming ventilation can be driven
down and then back up through the
slats.
The large openings of the pump -
out ports will act as air inlets
and reduce the ability of pit
fans to draw air down through the
slats. Restrict these openings with
plates cut to fit around the pump
piping. Great care must be taken in
the construction of such covers. If
they are not secure, they create
another hazard for someone falling
through them.
Additional material on the subject
of manure gas is available at
"Just because you have
had no problem with
gassing in the past does
not mean It will not
happen in the future."
OMAFRA offices across the
province.
As Kains points out, despite the
potential danger, millions of gallons
of liquid manure are spread safely
each spring. That fact, however, may
lull farmers into thinking there is no
problem with gas in their operation.
"Just because you have had no
problem with gassing in the past does
not mean it will not happen in the
future," he warns. "Such problems
are often the result of an unfortunate
series of circumstances or
coincidence. Everyone involved
should carefully think about the
potential hazards and either correct
them, or be extra mindful when
pumping manure."
Manure gas deaths may be a rare
occurrence, but that doesn't make it
any easier for the families of victims.
Just ask Flo Cartwright. She doesn't
want anyone else to learn first hand
the devastating results of such an
accident.0
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