Published 25-01-2022
| Article appears in February Issue

AJ Bush upgrades aerator

24-01-2022

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.

Self-priming pump

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. 

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