Schmutzdecke

Schmutzdecke (German, “dirt cover”, sometimes wrongly spelled schmutzedecke) is a hypogeal biological layer formed on the surface of a slow sand filter. The schmutzdecke is the layer that provides the effective purification in potable water treatment, the underlying sand providing the support medium for this biological treatment layer.

单词	schmutzdecke
释义	schmutzdecke 英汉-汉英词典〈德〉去污层(菌类) 词组 \| 习惯用语您要查找的是不是： stoichiometry n. 化学计算法；化学计量法 stoichiometric adj. 化学计算的；化学计量的；化学论量的 schmutzdecke 去污层英语百科 Schmutzdecke Schmutzdecke (German, “dirt cover”, sometimes wrongly spelled schmutzedecke) is a hypogeal biological layer formed on the surface of a slow sand filter. The schmutzdecke is the layer that provides the effective purification in potable water treatment, the underlying sand providing the support medium for this biological treatment layer.
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Schmutzdecke