The EPCO Australia Packaged Extended Aeration Sewage Treatment Plant (PSTP) was developed in Australia in 1962 to meet the demands of smaller or isolated communities for the complete purification of domestic sewage to a degree allowing discharge to local water courses, irrigation and reuse.
Packaged plants can be designed to suit 50 persons to 5000 persons and can be installed in-ground or above. These plants are compact, very reliable and simple to operate and maintain.
Since the initial development, hundreds of EPCO packaged plants have been installed in small towns, hotels, mine sites, oil fields and holiday resorts, often in remote and environmentally sensitive sites.
Many of these projects require installation by local unskilled labour in extreme conditions with limited access and tooling.
The two basic plant types are the rectangular design for lower capacities and circular plants for higher ranges.
The treatment method used will depend on the final effluent quality required and how the effluent is to be discharged.
- Trailer mounting for small sizes
- Concrete tanks
- Tertiary filters
- Comminutors or mechanical screening
- Tablet chlorine disinfection
- UV Disinfection
- Flow balance tanks
- Plant operation & NATA testing
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