The activated sludge process of sewage treatment
Subtitle: a bibliography of the subject, with brief abstracts, patents, news items, etc. comp. mainly from current literature.
Edition: 2d ed. by J. Edward Porter.
Publisher: General filtration company, inc.
Published: 1921
Place of publication: Rochester, N. Y
Language: eng
Number of pages: 117
Subjects: Sewage disposal -- Bibliography