phosphorus elimination plant
31Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …
32Nonpoint source water pollution regulations in the United States — Nonpoint source (NPS) water pollution regulations are environmental regulations that restrict or limit water pollution from diffuse or nonpoint effluent sources such as polluted runoff from agricultural areas in a river catchments or wind borne… …
33Water purification — This article is about large scale, municipal water purification. For portable/emergency water purification, see portable water purification. For industrial water purification, see deionized water. For distilled water, see distilled water. Water… …
34nutritional disease — Introduction any of the nutrient related diseases and conditions that cause illness in humans. They may include deficiencies or excesses in the diet, obesity and eating disorders, and chronic diseases such as cardiovascular disease,… …
35VX (nerve agent) — Chembox new ImageFile = VX S enantiomer 2D skeletal.png ImageName = Skeletal formula of the S enantiomer of VX ImageFile1 = VX S enantiomer 3D balls.png ImageName1 = Ball and stick model of the S enantiomer of VX IUPACName = Ethyl { [2 [di(propan …
36Asia — /ay zheuh, ay sheuh/, n. a continent bounded by Europe and the Arctic, Pacific, and Indian oceans. 2,896,700,000; ab. 16,000,000 sq. mi. (41,440,000 sq. km). * * * I Largest continent on Earth. It is bounded by the Arctic Ocean, the Pacific Ocean …
37Denmark — /den mahrk/, n. a kingdom in N Europe, on the Jutland peninsula and adjacent islands. 5,268,775; 16,576 sq. mi. (42,930 sq. km). Cap.: Copenhagen. * * * Denmark Introduction Denmark Background: Once the seat of Viking raiders and later a major… …
38food preservation — Any method by which food is protected against spoilage by oxidation, bacteria, molds, and microorganisms. Traditional methods include dehydration, smoking, salting, controlled fermentation (including pickling), and candying; certain spices have… …
39Shifting cultivation — For methods, see slash and burn Shifting cultivation is an agricultural system in which plots of land are cultivated temporarily, then abandoned. This system often involves clearing of a piece of land followed by several years of wood harvesting… …
40Psyllium — Not to be confused with Cilium. For the mucilaginous health product, see Psyllium seed husks. Psyllium or Ispaghula is the common name used for several members of the plant genus Plantago whose seeds are used commercially for the production of… …
