Nassau County’s S.E.P.T.I.C. Grant Program - Accepted IA OWTS Technologies
The Hydro-Action® systems utilizes a suspended growth aeration system. The treatment occurs as wastewater enters the pretreatment tank and flows by gravity into the aeration compartment. Wastewater flows by gravity from the aeration chamber through a hole in the base of the cone-shaped clarifier, where final settling takes place. The hydraulic roll created by the aeration system helps draw settled solids out of the base of the clarifier and back into the aeration chamber. The aerobically charged wastewater is then recirculated back to the pretreatment tank, where it further denitrifies. Treated wastewater exits by gravity through a tee structure located in the center of the clarifier, treated effluent is then discharged to the structure.
The Singulair® wastewater treatment system is a self-contained three-chambered treatment system utilizing primary treatment (settling), mechanical aeration, clarification, and flow equalization to achieve treatment. Wastewater from the building enters the primary settling chamber through an inlet tee, then enters an aeration chamber. In the aeration chamber, an aspirator at the bottom of a shaft disperses air radially as fine bubbles provide oxygen for the biomass and vertically mix chamber contents. The wastewater in the aeration chamber passes through to the clarification chamber for final settling of solids. Treated wastewater passes through an effluent filter as it exits the system and is then gravity fed to the leaching structure.
In the patented AdvanTex Treatment System, household sewage flows into the processing tank, where it separates into scum, sludge, and liquid effluent. Filtered effluent is dosed to the AdvanTex filter pod, where it trickles through sheets of a synthetic textile. There, naturally occurring microorganisms remove impurities from the effluent. After recirculating between the tank and the AdvanTex filter, the effluent is discharged to the soil via irrigation or a drainfield.
The System 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. The clarification chamber incorporates a flow equalization unit. Aeration is controlled by a factory-programmed timer and wastewater is recirculated from the clarifier back to the anoxic chamber at factory set intervals. The system is available with both concrete and HDPE tankage and with the pre-treatment tank either integral to the other three chambers in a four-chambered tank, or as a distinct tank.
The Fuji Clean system treats wastewater through a process of contact filtration, flow equalization and recirculation, all within one tank consisting of three sequential chambers, “Sedimentation,” “Anaerobic” and “Aerobic.” Influent first enters the Sedimentation Chamber, where sludge settles to the bottom, scum and grease float to the top and the relatively clear liquid in the middle flows through a baffle into the bottom of the 2nd chamber, the Anaerobic Chamber. In the Anaerobic Chamber, plastic media sandwiched in the middle within a horizontal plastic grate provides for upflow physical filtration as well as surface area on which anaerobic microbe colonies live and decompose organic matter and denitrify nitrates. Filtered flow from the upper portion of the Anaerobic Chamber then flows into the 3rd chamber, the oxygen rich Aerobic Chamber where two different types plastic media provide surface area for aerobic microbe digestion activity, additional solids filtration and nitrification of organic nitrogen to nitrate nitrogen. Oxygen is introduced into the sides of this chamber from one linear diaphragm blower. Air from this same blower is also used to power a recirculation loop where an airlift pipe pulls mixed liquor from the sloped bottom center of the aeration chamber and recirculates it 24/7, in a controlled manner, back to the sedimentation chamber. Finally, air from this same blower powers an effluent airlift line that meters cleaned effluent to a final settling zone before gravity discharge. Airlift pipes and flow-through ports are all positioned for natural flow equalization during processing, thus providing maximum residence time for optimal treatment.
The simple, automatic and reliable equalization and clarification process of the SeptiTech® STAAR™ (Smart Trickling Anaerobic/Aerobic Recirculation) System treat 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. The air combines with the uniform spray providing efficient treatment as the water and air combination trickles down through the filter media. Systematically, wastewater is pumped back to the settling tank to remove sludge from the trickling filter. This localizes sludge management into the settling tank. After treatment, a pump will send small, frequent time doses to the leaching system to ensure optimal soil absorption. The SeptiTech® STAAR™ Filter Panel Senses “surge flow” and “low flow” activity; automatically adjusting the discharge rate as needed.