Wastewater Systems Aerobic Treatment Units
Coerco offers a range of Aquarius® ATUs designed to effectively process wastewater from both residential and commercial properties. These systems efficiently handle wastewater from toilets, kitchens, bathrooms, and laundries, treating it to meet the stringent standards set by the Department of Health, WA. This treatment allows the recycled water to be safely used for irrigating garden beds, orchards, and more, or for dispersal into leach drains, soak wells, and aqua-safe drains. Our O-2 NR and O-3 models go a step further by reducing phosphorous and nitrogen levels in the water, making them particularly beneficial for water catchment areas, environmentally sensitive zones, and in meeting local shire regulations. These models are recognised for their nutrient-retentive capabilities, which are crucial for environmental conservation. Moreover, the Aquarius® O-3 stands out as our most eco-friendly option. It employs Ozone in its final disinfection stage, surpassing chlorine in effectiveness and leaving oxygen as its only by- product.
Treatment Process
0-3 0-2 NR 0-2
Primary Tank Retains the solids and uses aerobic and anaerobic bacteria to breakdown the BOD 5 levels in the sewage Alum Tank Doses the clarifying chamber of the treatment tank with alum. Alum acts as a flocculent to remove the nutrients and suspended solids and settle them to the bottom of the tank for further aerobic bacteria breakdown.
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TREATMENT TANK
Secondary/Aeration Chamber Incorporates aeration to further break down BOD 5 and nitrates. Clarifying/Discharge Tank The Clarifying Chamber provides a set- tling and clarifying period for the water prior to discharge. Discharge Chamber The Discharge chamber contains the Discharge Pump to pump the treated water out to irrigation or other disposal methods. Ozonation Pump Ozone is a powerful disinfectant, many times more effective than chlorine and kills bacteria. DoH WA ATU Water Quality Criteria <20mg/L BOD 5 <30mg/L suspended solids <10 E.coli/100ml <3mg/L Ozone concentration <1mg/L TP <10mg/L TN
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