purification through the soil
81Tree bog — A Treebog is a form of compost toilet which has willows, nettles and other nutrient hungry plants planted around it. The faeces are held in a chamber open to the air which allows it to decompose rapidly, feeding the trees around it. Unlike a… …
82feast — feaster, n. feastless, adj. /feest/, n. 1. any rich or abundant meal: The steak dinner was a feast. 2. a sumptuous entertainment or meal for many guests: a wedding feast. 3. something highly agreeable: The Rembrandt exhibition was a feast for the …
83Spain — /spayn/, n. a kingdom in SW Europe. Including the Balearic and Canary islands, 39,244,195; 194,988 sq. mi. (505,019 sq. km). Cap.: Madrid. Spanish, España. * * * Spain Introduction Spain Background: Spain s powerful world empire of the 16th and… …
84chemical industry — Introduction complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives. Although the chemical industry may be described simply as the industry that uses chemistry and… …
85Desalination — This article is about removing salt from water. For soil desalination, see Soil salinity control. Water desalination Methods Distillation Multi stage flash distillation (MSF) Multiple effect distillation (MED|ME) Vapor compression (VC) Ion… …
86Dry cleaning — (or dry cleaning) is any cleaning process for clothing and textiles using a chemical solvent other than water. The solvent used is typically tetrachloroethylene (perchloroethylene), abbreviated perc in the industry and dry cleaning fluid by the… …
87Houseplant — A houseplant is a plant that is grown indoors in places such as residences and offices. Houseplants are commonly grown for decorative purposes and health reasons such as indoor air purification. Plants used in this fashion are most commonly,… …
88Saudi Arabia — a kingdom in N and central Arabia, including Hejaz, Nejd, and dependencies. 20,087,965; ab. 600,000 sq. mi. (1,554,000 sq. km). Cap.: Riyadh. Cf. Mecca. * * * Saudi Arabia Introduction Saudi Arabia Background: In 1902 Abd al Aziz Ibn SAUD… …
89chemical compound — Introduction any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element). All the matter in the universe is composed of the atoms of more than 100 different chemical elements …
90Urea — Urea …
