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|Additional Physical Format:||Online version:
Walker, Elton David.
Studies at the sewage treatment plant, the Pennsylvania State College.
State College, Pa. : [publisher not identified], 1930
|Material Type:||Government publication, State or province government publication|
|All Authors / Contributors:||
Elton David Walker; Glen Aven Lindsey; Philip M Jones
|Description:||51 pages : illustrations ; 23 cm.|
|Contents:||A comparison of the efficiency of open and closed trickling filters, by E.D. Walker.--A comparative study of the biology of the open and closed sprinkling filters of the sewage disposal plant of the Pennsylvania State College, by G.A. Lindsey.--Protozoa found in the sewage disposal plant at the Pennsylvania State College, by P.M. Jones.|
|Series Title:||The Pennsylvania State College bulletin., vol. XXIV, no. 15. April 8, 1930; Pennsylvania State College.; Engineering Experiment Station.; Bulletin|
|Responsibility:||by Elton D. Walker, Glen A. Lindsey [and] Philip M. Jones.|