Inline bioremediation liquid treatment system
A liquid treatment system is provided having a vault that contains a treatment chamber and an outflow chamber. The treatment chamber may have a filtration media layer containing media that treats liquid as it descends through the filtration media layer, where it will accumulate in a porous layer or open space. The liquid will then be directed through the plurality of pipes to the outflow chamber, where the treated liquid is further directed to outside the system. Accumulated debris settled at the bottom of the treatment chamber may be flushed out by a spray bar.
1. A liquid treatment system comprising:
a vault having a treatment chamber and an outflow chamber;
a liquid inlet positioned to direct liquid into said treatment chamber from outside the treatment system;
a porous layer adjacent to the bottom of the treatment chamber;
a plurality of slightly inclined but substantially horizontal pipes positioned to direct liquid from the treatment chamber into the outflow chamber, and supported by said porous layer, at least a portion of each of said plurality of pipes being perforated;
a filtration media layer located directly above said plurality of pipes;
a plurality of shields disposed between the perforated portions of said plurality of pipes and said filtration media layer, said shields adapted to prevent liquid from entering the perforated portions of said plurality of pipes directly from said layer of filtration media; and
an outlet adapted to direct treated liquid from said outflow chamber to outside the system.
2. The liquid treatment system of claim 1 wherein upon entering said treatment chamber, liquid is drawn downward through said filtration media layer, then drawn around said plurality of shields, past said plurality of pipes, and accumulated in said porous layer; and
wherein upon accumulation of said liquid in the treatment chamber to a level that is at or above that of said plurality of pipes, said liquid is drawn through said perforated pipe portions into one or more of said plurality of pipes, directed into said outflow chamber, and ejected through said outlet.
3. The liquid treatment system of claim 1 , wherein an intermediate portion, downstream of said perforated portion, of at least one pipe in said plurality of pipes, is elevated with respect to the remaining portions of said pipe.
4. The liquid treatment system of claim 3 , further comprising an air vent connecting the top of said elevated portion of said pipe to the ambient air outside the treatment system.
5. The liquid treatment system of claim 4 , wherein said air vent is adapted to prevent liquids from entering said pipe through said air vent.
6. The liquid treatment system of claim 1 , wherein said plurality of pipes have a plurality of maximum flow rates.
7. The liquid treatment system of claim 1 , further comprising a bypass channel positioned above said filtration media layer adapted for directing overflow liquid from said treatment chamber into said outflow chamber.
8. The liquid treatment system of claim 7 , further comprising a filter in line with said bypass channel adapted to filter solids from said overflow liquid.
9. The liquid treatment system of claim 8 , wherein said filter is adapted to permit fluid to flow into said outflow chamber in the event said filter is fully blinded by solids.
10. The liquid treatment system of claim 8 , wherein said filter is removable through an opening in said outflow chamber.
11. The liquid treatment system of claim 8 , wherein said filter is serviceable through an opening in said outflow chamber.
12. The liquid treatment system of claim 1 , wherein said filtration media layer is suitable for sustaining living plants.