Oil refinery effluent treatment in ponds /

Míreanna comhchosúla

• WPCF wastewater treatment skill training package : activated sludge process equipment/
  de réir: Water Pollution Control Federation
  Foilsithe / Cruthaithe: (1980)
• WPCF wastewater treatment skill training package ; activated sludge administrator handbook/
  de réir: Water Pollution Control Federation
  Foilsithe / Cruthaithe: (1980)
• WPCF wastewater treatment skill training package : activated sludge process control/
  de réir: Water Pollution Control Federation
  Foilsithe / Cruthaithe: (1980)
• Safety & health in wastewater systems : manual of practice 1/
  de réir: Water Pollution Control Federation.Technical Practice Committee
  Foilsithe / Cruthaithe: (1983)
• Guidelines for developing a wastewater safety program
  de réir: Water Pollution Control Federation
  Foilsithe / Cruthaithe: ( 198)