Waste to Energy

Anaerobic digestion is one of the most eco-friendly and promising solutions for waste management, energy, and nutrient production, which can contribute to reducing the world's reliance on fossil fuels. It is a specialist area in which BPO are recognised as industry leaders.

BPO has comprehensive experience in;

  • Biogas utilisation - combustion of biogas in gensets for electricity production

  • Biogas treatment - dewatering & dehumidification

  • Biogas biological scrubbing - removing hydrogen sulfide from biogas through biological methods

  • Biogas storage - providing reserve storage under digester covers or dedicated domes

  • Flaring - Safe combustion of excess biogas to reduce greenhouse emissions

  • Biogas upgrading - the process of refining biogas into biomethane with 97% purity.

  • The digester technologies suitable for the production of biogas include the CGR, BVF and Contact Reactor

  • Biogas compression - following upgrading biogas is compressed to 200 bar for bio-CNG.


If you would like further information regarding a project or to talk to one of our team, please click here.

Case Study

Cargill CGR.jpg

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


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