sludge tray
1Kallitype — is a process for making photographic prints.Patented in 1889 by W. W. J. Nicol, the Kallitype print is an iron silver process. A chemical process similar to the Van dyke brown based on the use of a combination of ferric and silver salts. Many… …
2Hydroponics — (from the Greek words hydro (water) and ponos (labour) is a method of growing plants using mineral nutrient solutions, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium,… …
3Sentinel boiler — Škoda Sentinel Super Sentinel steam waggon The Sentinel boiler was a design of vertical boiler, fitted to the numerous steam waggons built by the Sentinel Waggon Works. The boiler was carefully designed for use in a steam wagon: it was compact …
4Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan …
5Man-Thing — For the film, see Man Thing (film). Man Thing Man Thing #1 (Jan. 1974). Cover art by Frank Brunner. Publication information …
6Clean Harbors — Inc. Type Public Traded as NYSE: CLH …
