low-temperature sludge
61Superheated water — is liquid water under pressure at temperatures between the usual boiling point (100°C) and the critical temperature (374°C). It is also known as subcritical water and pressurised hot water. Superheated water referred to in this article is stable… …
62Polychlorinated biphenyl — PCBs redirects here. For printed circuit boards, see printed circuit board. Labelling transformers containing PCBs …
63Electrocoagulation — is also known as Radio Frequency Diathermy or Short Wave Electrolysis. A fine wire probe or other delivery mechanism is used to transmit radio waves to tissues near the probe. Molecules within the tissue are caused to vibrate which lead to a… …
64Coffee preparation — For the agricultural and industrial processes for producing whole coffee beans, see Coffee processing. Coffee preparation is the process of turning coffee beans into a beverage. While the particular steps needed vary with the type of coffee… …
65Cement — In the most general sense of the word, a cement is a binder, a substance which sets and hardens independently, and can bind other materials together. The name cement goes back to the Romans who used the term opus caementicium to describe masonry… …
66Polychlorinated dibenzodioxins — See also: 2,3,7,8 Tetrachlorodibenzodioxin, Dioxins and dioxin like compounds, and 1,4 Dioxin General structure of PCDDs where n and m can range from 0 to 4 Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of organic… …
67List of Doctor Who universe creatures and aliens — This is a list of fictional creatures and aliens from the universe of the long running BBC science fiction television series Doctor Who, including Torchwood, The Sarah Jane Adventures and K 9. It covers alien races and other fictional creatures,… …
68Glossary of boiler terminology — Boilers for generating steam or hot water have been designed in countless different shapes, sizes and configurations. An extensive terminology has evolved to describe their common features. This glossary provides definitions for these terms.… …
69Nitric acid — Nitric acid …
70Carburetor — Bendix Technico (Stromberg) 1 barrel downdraft carburetor model BXUV 3, with nomenclature A carburetor (American spelling), carburettor, or carburetter (Commonwealth spelling) is a device that blends air and fuel for an internal combustion engine …
