The largest capacity rendering facility in Australia is located at the AJ Bush processing facility operation at Bromelton, Queensland where they manufacture nutrient-rich protein meals and tallows/oils. The factory effluent is rich in organic material, which is treated via anaerobic digestion and aerobic treatment processes with treated water used to irrigate pasture surrounding their facility.
When plant engineering manager, Byron Boyers wanted to upgrade the pond aeration system to a better and safer system, he contacted Hydro Innovations about its Echo-Storm venturi aerators from Gorman-Rupp. These aerators use a self-priming pump to draw water from the source to be treated. It is then pumped at pressure through the Echo-Storm which adds dissolved oxygen to the water and ‘conditions’ it while it accelerates at more than 16 metres per second through the unit.
Boyers said he wanted a unit with easier and safer access to the Echo-Storm for maintenance, as all required equipment can be mounted on the pond bank. The existing self-priming Gorman-Rupp pump could also be utilised for the project. The effluent pond is 200m x 40m x 4m deep, with an inflow of 2 megalitres per day.
Boyers purchased a 4” VA4-550 Echo-Storm unit hooked it up to his Gorman-Rupp pump, designed a floating suction arrangement to keep the suction line off the bottom and pressed start.
Echo-Storm units are available in four sizes [2”, 3”, 4” and 6”] and can improve safety and reliability as well as reduce maintenance costs when compared with other aeration systems.