Collection system aeration and the microbial benefits
In late 2015 Reliant Water Technologies introduced the Wet Well Wizard, an aeration tool for the wet wells in collection systems. During 14 months of field testing the patent pending Wizard System, the primary objectives were to eliminate FOG (fat, oil and grease) caps and to reduce H2S, eliminating it if possible. All trials were proven excellent with very few changes to the product that eventually was introduced to the collection system market.
Now, after a number of months with customer owned Wizards in collection systems around the US and several countries, more is being learned about the opportunities of the Wet Well Wizard system. We are receiving increasing reports about –
Common FOG caps up to 5’ thick being emulsified in under 3 days (most thinner caps within 24 hours) – never to return again. o Complete return on investment in this application, if vacuum trucks had been previously rented, in under 8 weeks.
H2S being completely eliminated, as long as the well using the Wizard system was the primary source of the H2S generation. For wells that had carryover H2S from upstream wells, once a Wizard system was installed in the upstream well, H2S was totally eliminated.
A number of small towns, with small collection systems where several Wizard systems are being used just prior to the wastewater plant, customers quickly noticed that the head-works, or bar screen areas of their wastewater plants were suddenly experiencing reduced odor.
The first two bullets above were expected results, as these were our goals during the months of field testing that began in 2014. But now, with the reports of bar screen odor reduction/elimination, we are beginning to understand the true value of turning the microbial population in a collection system to a totally aerobic population.
During the trials, it was determined that the elimination of FOG caps required a very aggressive aeration technology, thus the development of the unique, patent pending, Wizard. At the same time, we knew that we would increase the dissolved oxygen (DO) in the well and the water leaving that well. We expected this increased DO to have the effect of transitioning the anaerobic microbial population into an aerobic population – eventually making the well a place that H2S could not survive. Again, this was achieved and we continually experienced lift stations and sewer lines losing their odor downstream – never to return, as long as the Wizard were continually operational.
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