and Enzymes Living In Septic Systems
is safe to say that without the billions of naturally
occurring microscopic critters living in a septic system,
the septic system would not work properly. These organisms
are responsible for a major part of the three-stage
treatment that processes wastewater in a septic system.
wastewater separates into layers in the septic tank.
This is where the process of decomposition begins. Bacteria,
which are naturally present in all septic systems, begin
to digest the solids that have settled to the bottom
of the tank, transforming up to 50 percent of these
solids into liquids and gases.
experts agree that it is unnecessary to add bacteria,
enzymes or activators to the community of organisms
that naturally occur in a septic system. In rare cases
high doses of cleaners, bleach, antibiotic drugs, or
a sudden change in the Ph of the system can temporarily
kill off a large number of beneficial bacteria, however,
it is difficult to kill off all bacteria. A system’s
biological community can recover, through reproduction,
and replenishment in a matter of hours.
important part of the process performed by bacteria
and other microscopic organisms occurs when the effluent
from the septic tank enters the drainfield and comes
into contact with the biomat. Organisms living in the
biomat further digest organic matter contained in the
effluent before it reaches the soil where the last part
of the process is completed, with the help of bacteria
naturally occurring in the soil. Many of the bacteria
living in the biomat and in the soil are aerobic or
oxygen dependent. When water floods drainfield soil
many of these bacteria die off and cannot be replenished
until flooded soils can be relieved.
this informative note about adding one of the
thousands of brands of bacterial digester products
to your septic tank.
From the Agricultural Engineering Department
of Michigan State University newsletter:
Should I use commercially available additives
in my septic system?
There are numerous additives on the market that
claim to improve the biological activity in the
septic system and some suggest that if you use
a particular additive you may not have to pump
your septic tank. Research has shown that there
is little if any benefit to be gained by using
additives in a septic system that is regularly
used and where the solids that accumulate in the
septic tank are removed every few years. Additives
that advertise reduction in septic tank pumping
may actually result in solids that are intended
to be removed and kept in the septic tank, washing
out into the drainfield. We do not recommend the
use of any additives in septic systems.