Antonie, Ronald L. Fixed biological surfaces-wastewater treatment : the rotating biological contactor / by Ronald L. Antonie - Ohio : CRC Press, c1976 - 200 p. : ill. ; 26 cm. - Water pollution control technology series . Includes index ISBN: 0878190791 : PND 31.20 Subjects--Topical Terms: Sewage--Purification--Rotating disc process Dewey Class. No.: 628.354