Technologies Accepted for General and Provisional use

Fuji System CEN Series

The Fuji Clean system treats wastewater through a process of contact filtration, flow equalization and recirculation, all within one tank consisting of three sequential “Sedimentation,” “Anaerobic” and “Aerobic” chambers.

Hydro-Action AN Series by AK Industries Inc.

Hydro-Action AN Series by AK Industries Inc: The Hydro-Action® system utilizes a suspended growth aeration system. The treatment occurs as wastewater enters the pretreatment tank and flows by gravity into the aeration compartment. The aerobically charged wastewater is then recirculated back to the pretreatment tank for denitrification. Treated wastewater exits by gravity through a tee structure located in the center of the clarifier, and treated effluent is then discharged to the leaching structure.

SeptiTech STAAR

SeptiTech® STAAR™ (Smart Trickling Anaerobic/Aerobic Recirculation) System treats high organic loads by utilizing biological trickling filter technology. Influent first enters a two-compartment, settling tank to allow separation of solids from liquids. Effluent from the primary settling tank flows through an effluent filter into the treatment tank at the bottom of the trickling filter mixing with the treated wastewater. Wastewater is then pumped up into the trickling filter. The pump simultaneously draws a robust amount of air. Wastewater is pumped back to the settling tank for denitrification. 

Advantex AX Series by Orenco Systems Inc.

Orenco's Advantex AX System is a prepackaged packed bed media filter consisting of a proprietary textile media, that reduces BOD and TSS.  The AX unit is housed inside a fiberglass container and installed after a two-compartment tank prior to discharge to a leaching structure. When configured in recirculation mode (mode 3), this system reduces nitrogen by returning the treated nitrified wastewater to the septic tank, where denitrification occurs and nitrate is converted to nitrogen gas.

HydroKinetic by Norweco Inc:

The HydroKinetic system by Norweco uses extended aeration, attached growth, nitrification, and denitrification processes to treat wastewater. It consists of four treatment chambers (pretreatment, anoxic, aeration, and clarification) followed by a Hydro-Kinetic FEU filter containing filter media facilitating additional reduction of BOD and TSS by attached growth, prior to discharge to a leaching structure.  

Lined Nitrogen Reducing Biofilter (NRB)

The Center for Clean Water Technology has prepared numerous technical and scientific papers on Nitrogen-Removing Biofilters (NRBs) theory and process. NRBs generally consist of a nitrifying sand layer placed over a denitrifying mix of sand and lignocellulose. NRBs are relatively passive systems, utilizing a pump to dime-dose the field built filter, which is  constructed with locally available material.  NRBs are relatively passive systems with limited mechanical parts. 

BioCoir Coconut Fiber Biofilter by Anua

BioCoir is a modular recirculating biofilter that utilizes sustainable fibers sourced and upcycled from coconut husks housed in a preassembled module (mod). The mods are factory assembled and can be configured as a combined treatment and effluent pad dispersal system or as a dispersal and polishing filter following other IA OWTS Treatment Systems.