Aquatec Maxcon was awarded the design and construction of a water reuse plant at the XXXX Brewery in Milton, Brisbane. The plant is designed to treat 2800 kL/day of wastewater at a COD loading of 11,000 kg/day. The plant consists of a Balance Tank, Preacidification Tank, Mix Tank, BIOPAQ® IC, Circox® aerobic polishing, DAF, DAFF, Microfiltration, Reverse Osmosis and sludge dewatering.
The entire project was realised by the Aquatec Maxcon Group. Design and commissioning were performed by Aquatec Maxcon. All tanks, DAF and DAFF were built by Maxcon Industries and the installation was conducted by Aquatec Services. The SCADA system was integrated by MPA Electrical Engineers.
The plant, which is built with an extremely small footprint, produces water for reuse in the brewery for all but beer making purposes. The brewery uses 2.1 litres of potable water per litre of beer produced, which we believe to be world's best practice.
The anaerobic reactor produces 130m3 of biogas per day which is used for steam generation in the brewery boiler, substituting natural gas as the methane content is >85% with H2S <1,000 ppm.
The plant is equipped with 13 skid mounted chemical dosing stations for various purposes, such as pH control, phosphate removal, antiscalant, SBMS, membrane cleaning solutions, polymer biocide and disinfection.
As the plant is in the middle of Brisbane, surrounded by offices and residential areas, the plant successfully contains all odour. This is achieved by fully enclosing all reactor tanks and treating all off-gases in a two stage biological and activated carbon treatment.
The client obtained 100% of the council grant after successfully proving the target reuse.