Bruce Bruso, president and CEO of CBA Environmental, explains how sewage sludge is converted into alternative energy at his plant in Hegins. He says sludge can reduce pollutants. PETE G. WILCOX/THE ...

Municipal sludge is a by-product of wastewater treatment that is produced in massive quantities worldwide. Managing this material remains a growing environmental challenge. Traditional treatment ...

Researchers have developed an innovative way to turn steel industry waste into a low-cost material that can clean antibiotics out of water, offering a promising solution to one of today’s growing ...

Woonsocket residents are fed up with the sludge incinerator, leading the city to plan its closure. Shutting it down could trigger a regional crisis.