Sedimentation volume

…If the slurry is left for a longer period of time, the interface height will no longer change, and the slurry will separate into a clear liquid layer and a final particle-sedimented sludge layer, completing the settling process. The volume of the sludge layer at this stage is called the sedimentation volume, and the value expressed as the sludge volume per unit mass or volume of particle indicates the state of particle packing in the liquid, and is influenced by the particle shape, size and distribution, particle-particle interactions, the affinity between particles and the liquid, and the type of adsorbed material on the particle surface. The SVI (sludge volume index), which expresses the sludge volume per gram of particles after 30 minutes of standing in cc, is also used as a measure of the settling property of the slurry. …

*Some of the terminology that refers to "sedimentation volume" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…さらに長時間放置すると界面高さは変化しなくなり，清澄液層と最終粒子沈積スラッジ層の二つに分かれて沈降を終了する。このときのスラッジ層の容積を沈降容積sedimentation volumeと呼び，粒子単位質量または容積当りのスラッジ容積で表した値は液体中の粒子充てん状態を示すもので，粒子の形，大きさとその分布，粒子間相互作用，粒子と液体の親和性，粒子表面の吸着物質の種類などに影響される。30分静置後の粒子1g当りのスラッジ容積をccで表したSVI(sludge volume index)もスラリーの沈降性を表す尺度として用いられる。…

※「sedimentation volume」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報