Waste water engineering


BPO Ltd. provides a variety of services and processes as part of an overall wastewater treatment system and energy management solution, providing industrial and municipal customers with the best technology to suit their needs. 


Our services include design/build solutions, process design and detailed engineering, waste testing, pilot studies, system commissioning, operator training, troubleshooting and a comprehensive aftercare service and operating support. 


BPO has full in-process wastewater laboratory, lab-scale and pilot-scale testing equipment and a wet workshop suitable for pilot testing. 


BPO offers a range of technologies in both physical-chemical and biological wastewater treatment applications with the aim of providing a technology that works well for the customer, resulting in customer satisfaction.

Primary Treatment

BPO can provide a range of reliable and easy to control systems for wastewater conditioning prior to secondary biological treatment or discharge to sewer. 

  • Automated pH management 

  • Load and flow balancing

  • Solids settling

  • Coagulation/Flocculation

  • Dissolved Air Floatation (DAF)

  • Discharge management using inline analytical sensors


Our solutions have been proven in the following industries:

  • Dairy processing

  • Food and beverage 

  • Laboratories

  • Concrete manufacturing

  • Aluminium anodising

89 Colombo Street

PO Box 5067, Frankton, Hamilton, New Zealand

570 Hillside Road,

Dunedin, New Zealand



T: +64 7 858 2101


T: +64 3 951 0240

AUS Free 1 800 751 806

© BPO Limited  

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