Studies of sewage purification
Subtitle: IV : The use of chlorine for the correction of sludge bulking in the activated sludge process
By: by Russell S. Smith ... and W.C. Purdy ...
Contributors: Purdy, W. C. (William C.), author; United States. Public Health Service
Publisher: U.S. Govt. Print. Off.
Published: 1936
Place of publication: Washington
Language: eng
Subjects: Sewage; Purification
Notes: At head of title: U.S. Treasury Department ... Public Health Service.

"Reprint no.1746 from the Public health reports, vol.51, no.20, May 15, 1936 (pages 617-623)ʹ

Bibliography: p. 7.