The state tested the sludge, solid waste that remains after the treatment of domestic and industrial water, for the presence of three “forever chemicals”: PFOA, PFOS, and PFBS. Of 44 samples ...

The waste may be liquid, solid, or sludge and contain chemicals, heavy metals, radiation, pathogens, or other materials. Even households generate hazardous waste, from items such as batteries ...

Biosolids, or sewage sludge, are the solid byproducts of the wastewater ... steam as microbes do their work in decomposition. The waste that make up biosolids can vary widely depending on what ...

Biogas is produced from the anaerobic digestion (AD) of organic matter, such as manure, MSW (municipal solid waste), sewage sludge, biodegradable wastes, and agricultural slurry, under anaerobic ...