In the art world, it is fostered by an incessant rain of numbers in the media whenever an art star comes to its attention. Graffiti Artists Turn on Banksy: The Rise of Art Hate Anthony Haden-Guest August 6, 2014
For the music genre, see Sludge metal. Sludge. Sludge is a semi-solid slurry and can be produced as sewage sludge from wastewater treatment processes or as a settled suspension obtained from conventional drinking water treatment and numerous other industrial processes.
Sewage Sludge/Biosolids Program. âSewage Sludgeâ refers to the solids separated during the treatment of municipal wastewater. The definition includes domestic septage. âBiosolidsâ refers to treated sewage sludge that meets the EPA pollutant and pathogen requirements for land application and surface disposal. See EPAâs biosolids program at the national level for more general information and documents.