sludge digestion gas
21Methane — Methane …
22Deepwater Horizon oil spill — 2010 oil spill and BP oil spill redirect here. For other oil spills in 2010, see 2010 oil spill (disambiguation). For the 2006 oil spill involving BP, see Prudhoe Bay oil spill. For the drilling rig and explosion, see Deepwater Horizon… …
23Food waste — Food waste, kitchen waste, or garbage (North American English) is any form of waste derived from food materials. It typically consists of vegetable peelings, meat scraps, excess or spoiled prepared food, and other discards from domestic or… …
24Living machines — are a form of biological wastewater treatment designed to mimic the cleansing functions of wetlands. They are intensive bioremediation systems that can also produce beneficial by products such as methane gas, edible and ornamental plants, and… …
25Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
26Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr …
27Mechanical biological treatment — Anaerobic digestion and air processing components of Lübeck mechanical biological treatment plant in Germany A mechanical biological treatment system is a type of waste processing facility that combines a sorting facility with a form of… …
28method — The mode or manner or orderly sequence of events of a process or procedure. SEE ALSO: fixative, operation, procedure, stain, technique. [G. methodos; fr. meta, after, + hodos, way] Abell Kendall m. a …
29Biomass — refers to living and recently dead biological material that can be used as fuel or for industrial production. Most commonly, biomass refers to plant matter grown to generate electricity or produce biofuel, but it also includes plant or animal… …
30Gravity separation — is an industrial method of separating two components from a suspension or any other homogeneous mixture where separating the components with gravity is sufficiently practical. All of the gravitational methods are common in the sense that they all …
