WPCF wastewater treatment skill training package
Subtitle: activated sludge process control
By: prepared jointly by: Water Pollution Control Federation, Environment Canada.
Contributors: Canada. EnvironmentCanada.
Publisher: Water Pollution Control Federation
Published: 1980
Place of publication: Washington, dc
Language: eng
Number of pages: 170
Subjects: Sewage -- Purification -- Activated sludge process.
Other titles: Activated sludge process control.