Today a Landfill is not just a rubbish dump. In fact they are a valuable source of renewable energy which can be captured and used in a variety of ways. A Landfill produces biogas (or Landfill gas) which contains in the order of 40-60% Methane CH4. This is a valuable product with many uses. Pressure Worx offers a number of technologies for the effective utilisation of biogas from landfills.
More common in Australasia is generating electricity from the biogas. Pressure Worx offer systems to remove moisture, siloxanes, VOCs, and reduce H2S suitable for burning in gas engines (CHP) or Microturbines. We offer blowers and compressors to increase pressure of the biogas when required.
Pressure Worx promote the use of Capstone Microturbines. The Microturbines create electricity but also plenty of high grade heat that can have many different industrial uses. For Landfills, utilisation of this microturbine waste heat for leachate evaporation, significantly reducing volumes of leachate to handle and dispose of, can have a major economic benefit to any project being considered. Within New Zealand, Pressure Worx can offer the complete power station including all gas treatment and conditioning equipment, Capstone Microturbine generators and the Leachate Evaporator, providing a full Turnkey equipment solution.
Biogas Upgrading – Pressure Worx are the Sales Agent for Greenlane Biogas in New Zealand and Australia. We can take the raw landfill gas, remove the carbon dioxide, hydrogen sulphide, siloxanes, and moisture that are present in the biogas, creating Biomethane. This clean gas can then be used for vehicle fuel, virtual pipeline or injected directly into the gas grid. We offer all of the 3 main upgrading technologies including Pressurised Waterwash, Membrane and PSA. The latter is most commonly used for landfills due to its ability to reduce inert gases such as nitrogen and oxygen that are often found in landfill gas.