This project has a long history so I'll provide a short background. It was built in the 90's as a mixed use residential and commercial development in a resort area. It consists of cabins, condos, retail and a restaurant.
Back in those days recirculating sand filters were all rage and the DEQ required one to be installed for wastewater treatment.
You remember the design...a goofy little frame wall built around the perimeter of the excavation to which plywood or drywall was applied so that a 30 mil PVC liner could be draped over the whole thing. Then there were the layers of sand, gravel, pea gravel, more gravel that had to be meticulously placed, leveled and smoothed.
Well it failed, just like they all fail. It was rebuilt. The new one failed.
When the owners decided they had had enough, they installed an Eliminite as a retro-fit to the existing primary and recirculation tanks.
The photo on the left shows the wastewater in the recirculation tank before startup. It looks so bad you can almost smell it through the screen.
The photo on the right shows a sample collected from the Eliminite just ten days after the system was started. It is clear and there is no offensive odor.
This means that in ten days or less the Eliminite system turned a tank full of filthy, stinky, nasty wastewater, into a clear, odor-free effluent.
Try this with one of those air bubbler systems and the aeration tank would have looked like Yellowstone Mud Pot. I can only imagine what a filter fabric or foam cube system would look like after a week of receiving this type of wastewater. Can you say, "Time for the Tyvek suit?"
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