For the Elgin Water Department, taking lime away is a $1.89 million annual proposition. Last week, the City Council unanimously agreed to pay that amount for removing lime residuals, which are a ...

Phosphate release and phosphate fixation during sludge treatment of waste activated sludge (WAS) was investigated with a pilot plant for enhanced biological phosphorus removal (EBPR), complemented by ...

The chelating agent trisodium nitrilotriacetate (NTA) can be used effectively in combination with polyphosphates in the formulation of heavy-duty detergents. Laboratory investigations have shown that ...

ENGLEWOOD, Colo. (CBS4) - Low level radioactive sludge is being removed from a water treatment plant in Englewood, following a CBS4 investigation. Some workers believe the sludge at the Charles Allen ...

PITTSBURGH (KDKA) - The Pittsburgh Water and Sewer Authority is pleading guilty for violating the Clean Water Act, accused of dumping sludge into the Allegheny River and lying about it. Federal ...

NORTH ADAMS — In the wake of a negative public response and changes in regulations, the Hoosac Water Quality District announced it would not be composting sludge for other communities after all.

Colorado Republican Rep. Lauren Boebert visited a small community in Morgan County, in the eastern part of her state, promising to address a long-standing issue that has left locals with “toxic black ...

Myra Morrison operates a combine on her land in Cabarrus County, where opposition grew to Charlotte Water’s spreading sewage sludge on farmland. Charlotte Water “is closely monitoring” a new federal ...

Using more sludge and less slag in their recipe, researchers were able to create a material that's stronger than even today's enhanced cements and highly resistant to corrosion by acid. It could solve ...