devicethe env & auml; lzenssigmist of fl and professional;and / or wastewater in a vertically standing vorratsbeh & auml; lter, especiallyr & hrwerk makes;to encourage a g & t.; llezirkulationin a g & t.; llevorratsbeh & auml; lter (1)in plants, with a along a rotation axis (a) 2shaft (5), and professional;.housing (6, 7) to parts of the vorratsbeh & auml; lters (1)can be stored and a antriebsvorrichtung (8) antreibbarand with transverse to the axis (a) of s & t.; hrelementen(9, 10) in which the shaft (5) in the vertical and radial of the vorratsbeh & auml; lter (1)covers, characterized by the fact that the vorratsbeh & auml; lter (1)a deckelartige cover (3) is covered, thewave (5) below the cover (3) is located, such that ther & t.; hrelemente (910) for its rotation in a breakthrough (11) in the cover(3) sticking out, and that the breakthrough (11) of a hood (12,121) placed is completed.
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