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Subject "Nitrogen removal"
Removal of nitrate by an algal system. [Author: Randall L. Brown.
By: California. - Brown, Randall L.
Publication info: Sacramento];For sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington,1971.
Contributed by: University of California Libraries (archive.org)
Subjects: Algae Biological treatment Nitrates Nitrogen removal Purification Water