Sedimentation vessel for purifying waste liqs - cheaply made in wide range of capacities
Реферат: Sedimentation vessel comprises a hollow vertical pref. cylindrical, body section fitted with a bottom, a top and an internal partition. Essentially, the bottom, top and partition are all made to identical shape and size, pref. of frusto-conical form, so that they can all come from one mould. Vessels covering a range of capacities can be made simply by altering the length of the body section, so that prodn. costs are held down.
Activated sludge system for purifying household waste waters
Номер патента: EP1493477A3. Автор: Rosolino Tarenzi,Ilario Sestito. Владелец: ISEA SpA. Дата публикации: 2005-02-02.