Evaluation of a new spiral-track biological filter
By: George R. Spangler and Rodney B. Pierce.
Contributors: Pierce, Rodney B.; University of Minnesota. Agricultural Experiment Station.
Series: Station bulletin -- AD-SB-2918
Publisher: University of Minnesota, Agricultural Experiment Station
Published: 1986
Place of publication: [s.l.]
Language: eng
Number of pages: 22
Subjects: Fish-culture -- Equipment and supplies.; Water -- Purification -- Filtration.; Water -- Purification -- Biological treatment.