As the oil industry continues to grow, the volume of oil sludge produced has also increased, leading to significant environmental concerns. Effective treatment and recovery techniques are ...
The National Association of Clean Water Agencies, which represents wastewater treatment plants across the country, said the findings reinforced that sludge fertilizer was not a risk to the public ...
The solids need to be disposed of and can make a nutrient-rich sludge often spread on farm fields. The agency now says those solids often contain toxic, lasting PFAS that treatment plants cannot ...