• publisher: Urbana : Dept. of Civil Engineering, University of Illinois
  • creator: Wallin, Thomas Robert
  • Keyword: Sewage Purification Activated sludge process. Sewage Purification Flocculation. Ultrasonic waves Industrial applications.
  • years: 1967.
  • pages: xi, 101 l.
  • class: TD756
  • download: pdf file