411 REFERENCE · Wiktionary
Imhoff tank
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named for German engineer Karl Imhoff (1876–1965).
Noun
A chamber for the reception and processing of sewage, divided into an upper chamber for sedimentation and a lower chamber in which the sludge is collected and digested.
en eponyms