Fecal coliform
reduction in ponds and lakes
The presence of fecal
contamination in a body of water, is an indicator that a potential health risk
exists for individuals exposed to this water. Fecal coliform bacteria may occur
in ambient water as a result of the overflow of domestic sewage or nonpoint
sources of human and animal waste.
The presence of fecal coliform
bacteria in aquatic environments indicates that the water has been contaminated
with fecal material. This source water may have been contaminated by pathogens
or disease producing bacteria or viruses that can also exist in fecal material.
Some waterborne pathogenic diseases include typhoid fever, viral and bacterial
gastroenteritis and hepatitis A.
The most common member being
Escherichia coli. E.coli is the primary fecal coliform, however, Klebsiella is
sometimes of fecal origin. Other general coliform genera include Enterobacter
and Citrobacter. Non-fecal coliforms are also widely distributed in nature,
being found both as naturally occurring soil organisms, and in the intestines
of warm-blooded animals and humans.
With the use of microbial
bioaugmentation, we have been able to successfully reduce fecal coliform
contamination.
Below is a table of results using a
combination of Eutro-Clear 1+ Eutro-Clear 6 and Eutro-Clear 5.
The objective of this test was
assess Eutro-Clear's viability for use in emergency discharge situation from a
wastewater treatment plant. It was concluded that Eutro-Clear would be able to
reduce the environmental impact in the event of such an event.
| |
BOD |
Sulfide |
FOG |
Fecal coliform reduction |
Hrs |
| |
|
|
|
E.coli |
|
| Eutro-Clear 1+ 6 |
|
|
|
-65.0% |
<1 |
| |
|
|
|
-81.0% |
1 |
| |
-85.0% |
-75.0% |
|
-98.0% |
24 |
| Eutro-Clear
5 |
|
-52% |
-28.6% |
-93.8% |
24 |
