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Zoeller Fusion Advanced Treatment System
What is the Fusion?
The Fusion® Series Treatment Systems combine the best elements of anaerobic and aerobic digestion to provide superior wastewater treatment. The system readily and consistently meets the secondary treatment standards of 9 mg/L CBOD5, and 9 mg/L TSS. Because the Fusion® is equipped with built-in pretreatment, no additional septic tank is required. The system’s two types of media provide a stable environment to ensure that strong bacterial colonies remain even after high flow events that may impede the performance of a normal septic tank.
The anaerobic chamber uses fixed media to improve the efficiency of traditional primary treatment. The aerobic chamber employs suspended media in two zones to enhance secondary treatment. The upper zone provides a stable home for beneficial bacteria to colonize. The packed lower zone provides a filtration mechanism while a sludge return process enables the efficient reduction of suspended solids in the effluent. Additionally, an automatic backwash routine stirs the media with air, twice daily, to thoroughly break up accumulated solids. These solids are then returned to the sedimentation chamber. Denitrification is achieved by returning nitrified effluent to a carbon-rich anoxic environment in the first chamber.
The use of media within the Fusion® yields extremely reliable treatment. Although wastewater constituents and flow rates can vary from day to day, the Fusion® will continue to perform consistently, effectively, and efficiently. The system can even sustain low or no flow periods for several months with little or no disruption of effluent quality.
System Features
- Material: All materials are noncorrosive in the septic environment. Media never needs to be removed or replaced.
- Easy to install or retrofit: Fusion® Series Treatment Systems are compact, efficient, and designed to be installed in a typical residential/commercial environment.
- Proven Technology: Fuji Clean Co., LTD initially developed their wastewater Jokaso treatment system in 1969. With decades of refinement, the Clarus Fusion® Series has been optimized to treat residential waste.
- Maintenance: The system requires semiannual maintenance and will be provided with maintenance contract information. Maintenance provider is dependent upon geographical location.
How does it work?
1Raw sewage flows into the sedimentation chamber. This chamber is designed to physically separate solids (sludge) and floating materials (scum) from the incoming water.
2Separated effluent then flows into the anaerobic chamber. This chamber contains a spherical-skeleton type of filter media (4.3 inch diameter). Through fixed film processes on the surface of the filter media, biological anaerobic treatment thrives while suspended solids are captured. Furthermore, the microorganisms in this chamber convert nitrates in the recirculated effluent returning from the aerobic chamber to gaseous nitrogen. The nitrogen then escapes to the atmosphere.
3From there the treated effluent flows into the aerobic filter media chamber. The aerobic floating and circulating filter media chamber consists of an aeration upper section and a filter media lower section. The chamber is filled with hollow, cylindrical filter media (0.6 inch diameter and 0.55 inches long). Biological treatment takes place with the help of the fixed film growth on the filter media surface. Aeration is continuous. Residual suspended solids are captured by the filter media circulating in this section.
The filter media in the Aeration chamber are backwashed regularly (5 or 10 minute cycle, twice a day) by the backwash system located at the bottom of the chamber. The backwashed effluent is transferred by air lift back into the sedimentation chamber for further digestion.
4The treated effluent then flows into the treated water storage chamber. During normal operation, a recirculation line transfers a portion of the treated effluent back into the sedimentation chamber by way of an air lift. This chamber is designed to temporarily store treated effluent coming out of the aerobic filter media chamber. The treated effluent in the storage chamber is ready for discharge.
