In municipal effluent, the BOD was reduced from 167 mg/L to 1.1 mg/L in only
a few months in one study, and from great than 200 mg/L to
less than 5 mg/L in another study in a
similar time frame. Enviro Series 600
Significant reduction in both the dugout and sewage lagoon
studies. (C. Ruiu et. al., 1998)
Reduction of effluent vs. influent in a municipal sewage lagoon,
Ontario, Canada, 1991.
Figure 2.0 BOD reduction of a municipal sewage lagoon
Municipal wastewater BOD reduction over time, Ontario, Canada,
1994.
Figure 3.0 Municipal wastewater BOD reduction over time
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