Automatic sludge blanket control in an operating gravity thickener / by R. C. Polta and D. A. Stulc.
Published
Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service, 1979.
Physical Description
xi, 77 p. : ill. ; 28 cm.
Notes
Prepared by Metropolitan Waste Control Commission, under grant no. S803602.