Rotating bacterial tablet dispenser for an underground wastewater denitrification system

Apparatus for use in conjunction with a process for treating sewage in an underground enclosure, said sewage being

• (a) from an individual home at the home site and having been previously subjected to primary settling, aeration and secondary settling;
• (b) that utilizes ground temperature in the process;
• (c) that also utilizes bacteria that are deposited periodically into said underground enclosure from an outside source;
• (d) in combination with said underground enclosure, a dispenser for periodically depositing bacteria in tablet form into said underground enclosure comprising:
• (1) a support column;
• (2) a horizontal sheet fixed on the support column and having an opening at a given radius from the support column,
• (3) a horizontal disk journalled on the support column and free to rotate thereon
• (a) having a plurality of openings circumferentially spaced at a radius from the support column conforming to the radius of the opening in said horizontal sheet fixed to the support column,
• (b) resting on said horizontal sheet and free to rotate thereon, and
• (c) having a loading column over each opening for receiving bacteria tablets,
• (4) a drive motor for rotating the horizontal disk,
• wherein
• one of said openings in the horizontal disk periodically aligns with the opening in the horizontal sheet permitting a tablet to drop through the opening in the sheet,
• means for supporting the tablets above the bottommost tablet in the loading column when the opening in the stationary sheet and the rotating disk are aligned,
• said drive motor being of the actuator type and having a drive arm that oscillates in one direction in a driving action on the rotating disk, and in a reverse direction in a non-driving action on the rotating disk,
• said support column being a pipe that also serves as vent means in the otherwise closed underground system of sewage treatment.