…Suspended matter includes fine particles derived from clay minerals, fine particles in sewage and industrial wastewater, plankton and other microorganisms, and particulate organic matter, and they are not only a cause of pollution but also a cause of sludge. The opposite of suspended matter is dissolved matter (abbreviated as DM). There is no set method for distinguishing between the two, but the most common method is to filter using a membrane filter with a pore size of 0.45 μm, and the components that cannot pass through are called suspended matter, and those that pass through are called dissolved matter. … *Some of the terminology explanations that mention "dissolved matter" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…浮遊物質は粘土鉱物に由来する微粒子,下水や産業廃水中の微粒子,プランクトンやその他の微生物,粒子状の有機性物質などで,汚濁の原因となるばかりでなく,汚泥の原因ともなる。浮遊物質に対するものとして溶解性物質dissolved matter(略称DM)がある。両者を区分する方法は定まってはいないが,もっとも一般的には,0.45μm孔径のメンブランフィルターなどを利用したろ過により,通過できない成分を浮遊物質,通過したものを溶解性物質としている。… ※「dissolved matter」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 |
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