In California, it is estimated that organic waste – such as food scraps, yard trimmings, paper and cardboard – makes up half of what is sent to landfill in the state.2 Recognising the scale of the issue, California recently passed Bill 1383 to reduce methane emissions by diverting food waste and other organic materials from landfills.
GreenWaste, a California-based resource recovery and recycling company, has been playing its part in diverting organic waste away from landfill and processing it into reusable products and fuel sources. Acquired by Macquarie Asset Management (MAM) in 2021, the company specialises in the collection, transfer and processing of municipal solid waste, organic materials and construction and demolition waste. Supported by MAM’s investment, the company has since been working to scale its waste diversion operations, helped by California’s progressive regulatory environment.
The company diverts organic waste from landfill via composting, using the waste collected to produce nutrient-rich, organic-certified compost and mulch that replaces the use of chemical fertilisers and other synthetic, non-renewable resources used in some agricultural practices. By making and reselling organic compost and mulch, GreenWaste is not only supporting healthier plants and increased crop yields but is also helping to conserve natural resources normally used in the production of these materials.3
GreenWaste also uses organic waste to produce renewable energy. Through the process of anaerobic digestion, the company generates biogas, a renewable energy source that is used to create electricity. This electricity is first used to power GreenWaste’s Renewable Energy Digestion Facility, with excess supplied back to the grid.3
These activities complement the work the company is also doing at its materials recovery facilities to separate recyclable materials from the municipal solid waste and construction and demolition waste streams. These recovered materials are then sold as commodities or used in other ways.
For decades, GreenWaste has been dedicated to developing technologies that recycle waste into valuable renewable products. Macquarie Asset Management is proud to be able to support the company now as they continue to work on innovative solutions that contribute to a more sustainable future.”
Head of Infrastructure, Americas
Macquarie Asset Management