Gardner officials have determined that expanding the city's sludge landfill is the most feasible option, as announced at a public meeting of the Sludge Landfill Expansion project Monday night.

Even with planned expansions, high sludge volumes have put Maine landfills on track to hit capacity by 2040. Advertisement Once a common farm fertilizer, all Maine sewage sludge is now landfilled.

Investments in U.S. biogas systems surged by $3 billion in 2024, marking a 40% increase from 2023, with landfill gas-to-energy projects receiving the largest share, though farm-based systems saw the ...

Right now, the only other options for disposal are sending biosolids to a landfill or incinerating them—both costly and imperfect solutions. Landfilling biosolids is expensive, and space is ...

EPA’s Draft Risk Assessment evaluated exposure and health risks stemming from the three most common biosolids disposal scenarios: application to land as a soil conditioner or fertilizer ...