Abstract: A wastewater treatment apparatus includes a plurality of water troughs for treating the wastewater including a first trough configured for flowing wastewater to a second trough. The first water trough includes a biogrowth media, and a wall having a plurality of passages positioned along a width of the wall and positioned along a height of the wall, the plurality of passages permitting water to exit the first water trough via the plurality of passages in the wall. The apparatus also includes a discharge channel of the plurality of water troughs, the discharge channel having a wastewater inlet for receiving wastewater that has flowed from the first water trough and the second water trough, the wastewater inlet being configured to be stationary.

Abstract: An enhanced multiple compartmented (segmented or chambered) supplemental tank system that (i) adds another media to enhance wood chip denitrification, and (ii) includes a component for recycling treated wastewater back to the front end of the system with mainly nitrate-N recycled back and combined with organic carbon (present in wastewater) under anoxic to form nitrogen gas and CO2. The latter uses an aeration pump and tubing to reduce soluble organics and assist with the conversion of ammonia-N to nitrite-N and nitrate-N.

Abstract: A septic tank system includes a multiple compartmented (or chambered) supplemental tank. The supplemental tank has a cover/lid with a plurality of strategically situated access holes (both small and large ports) for servicing the various chambers from above ground.