industrial gas cleaning
61Fouling — This article is about fouling in engineering. For uses of the term foul outside technology, see Foul (disambiguation). Not to be confused with fowling. Heat exchanger in a steam power plant, fouled by macro fouling …
62Dry ice — Sublimation of dry ice when placed on the surface of water at room temperature Dry ice, sometimes referred to as Cardice or as card ice , is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower… …
63ultrasonics — /ul treuh son iks/, n. (used with a sing. v.) the branch of science that deals with the effects of sound waves above human perception. [1930 35; see ULTRASONIC, ICS] * * * Vibrational or stress waves in elastic media that have a frequency above… …
64Indoor air quality — (IAQ) is a term referring to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. IAQ can be affected by microbial contaminants (mold, bacteria), gases (including… …
65Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …
66Chlorine — This article is about the chemical element. For the bleach, see Sodium hypochlorite. For the upcoming film, see Chlorine (film). sulfur ← chlorine → argon F ↑ Cl ↓ Br …
67Brownfield land — Brownfield redirects here. For other uses, see Brownfield (disambiguation). Brownfield sites are abandoned or underused industrial and commercial facilities available for re use. Expansion or redevelopment of such a facility may be complicated by …
68Membrane bioreactor — (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment with plant sizes up to 80,000 population… …
69Naphtha — Not to be confused with naphthalene, a solid benzene derivative which is the main ingredient in mothballs. Naphtha (  /ˈn …
70Contact lens — Contacts redirects here. For the software application, see Address book. A pair of contact lenses, positioned with the concave side facing upward …
