RI Lawmakers to Address Sludge
Rhode Island lawmakers are considering the formation of a legislative panel to address the state's shortage of sludge treatment options. The group will be tasked with finding solutions for the disposal of wastewater byproduct, which has become a significant statewide problem.
- The Woonsocket-based sewage sludge incinerator, operated by Synagro, is one of only two such facilities in Rhode Island and serves 25 to 30 municipalities in the region. The city-owned facility is slated for $30 million in capital improvements to transition to only accepting dewatered sludge, also known as "cake". - Woonsocket's decision to phase out liquid sludge acceptance stems from a class-action lawsuit filed by residents over persistent odors and a lawsuit from the Rhode Island Attorney General concerning the discharge of partially treated sewage into the Blackstone River. While a full timeline has not been formally announced, the city's public works director has indicated a plan to eliminate liquid sludge by July 1, 2027. - The change is expected to have a significant financial impact on cities and towns. The Town of Warren, for instance, has a current annual budget of $252,400 for sludge disposal and is now seeking alternatives as its contract with the Woonsocket facility expires. Municipalities like Warwick, South Kingstown, and Narragansett will also be affected. - The Narragansett Bay Commission (NBC), which already dewaters its own sludge, pays Synagro about $5.8 million annually for transport and incineration services. The NBC is concerned about the regional impact of Woonsocket's new policy and is in negotiations to potentially acquire the city's wastewater treatment plant. - The newly formed 19-member legislative commission will include state senators and representatives, as well as appointees from the Rhode Island Department of Environmental Management, the Narragansett Bay Commission, and experts in biosolids management and environmental science. The commission is required to present its findings and recommendations to the General Assembly by January 5, 2027. - The state's sludge crisis is creating potential business opportunities in alternative technologies. Pyrolysis, a process that transforms sludge into biochar, a carbon-rich solid, is one of the solutions being considered. New England-based companies like Northeastern Biochar Solutions and Biowaste Pyrolysis Solutions are working on technologies to decontaminate biosolids and convert them into products like fertilizer. - Woonsocket faces a complex financial situation. The city currently earns $3 million in annual host fees and up to $600,000 in royalties from the plant's operators, and its own waste is treated at no cost. However, it also faces the prospect of assuming responsibility for the plant and its associated costs, estimated to be in the tens of millions of dollars, on July 1, 2027.
