investigation of phosphorus removal mechanisms in activated- sludge systems / by W.E. Morgan and E. Gus Fruh
Morgan, W.E.
investigation of phosphorus removal mechanisms in activated- sludge systems / by W.E. Morgan and E. Gus Fruh - Washington, D.C. : Environmental Protection Agency - [158] p. - Environmental protection technology series EPA-R2-72-031 .
investigation of phosphorus removal mechanisms in activated- sludge systems / by W.E. Morgan and E. Gus Fruh - Washington, D.C. : Environmental Protection Agency - [158] p. - Environmental protection technology series EPA-R2-72-031 .