For optimum dissolved oxygen levels, aeration
systems should be operated 24 hours a day using a
fine-bubble diffuser with the diffuser at the deepest
part of the pond or dugout.
Air diffusers create small bubbles, provide
better water circulation and maintain higher levels
of dissolved oxygen than open ended tubing.
Diffusers should be placed at the pond or dugout
bottom so the aerated water circulates over the
surface of the mud. This keeps the bottom oxidized
thus preventing nutrients and other substances from
being released from the sediment. When the diffuser
is first placed on the pond or dugout bottom, sediment
will be displaced and put into suspension. However,
the sediment will quickly settle.
When a diffuser is placed above the bottom
of pond or dugout, the water below the level of the
diffuser becomes anoxic (has insufficient oxygen).
As a result, nutrients are released and may fuel algael
growth.
After installing aeration equipment, a regular
inspection and maintenance schedule is recommended.
This will ensure continuous aeration and help maintain
the dissolved oxygen at its optimum level, prevent
anoxic conditions and provide better water quality.
-- Aeration Improves Pond Water Quality: Pond
Aeration page |
Prairie Water News | Fall 1999: http://www.agr.ca/pfra/water/wqualite.htm | articles
|
by Steve Murrell | E-mail: Murrells@em.agr.ca |
PFRA (Prairie Farm Rehabilitation Act)
Main Office: http://www.agr.ca/pfra/pfheade.htm |
Water Quality Unit | Phone: (306) 780-5715 | Fax:
(306) 780-5018
The PFRA
Water Quality Unit provides technical
advice and support to District and other internal and
external clients in the areas of water and wastewater
treatment. Relying on the expertise in both engineering
and biological disciplines, the group specializes in
small scale systems suitable for use in rural areas
.
Koenders Inline Pressure Gage Assembly:
-- you can determine the psi measurement of your windmill or electric aerator
system when you first set it up and see if it is all working properly week
after week.
See: pounds per square inch | psi chart for water depth |
