Activated sludge is a process in sewage treatment in which air or oxygen is forced into sewage liquor to develop a biological floc which reduces the organic content of the sewage.

The efficient running of wastewater treatment plants is an essential part of modern society. Just like humans, wastewater treatment plants can get sick, due to viral attacks. Now, new research from ...

A thermochemical process can convert lipids from sewage sludge into biodiesel, according to a new study (Environ. Sci. Technol., DOI: 10.1021/es3019435). The low cost and high yield of the sludge ...