Flocculation and clarification in activated sludge systems /

Vita.

The influence of ultrasonic vibrations upon the physical features of activated sludge.

Thesis (M.S.)--University of Illinois.

The three sludge system for nitrogen and phosphorus removal /

"Presented at the 44th Annual Conference of the Water Pollution Control Federation, San Francisco, California (October, 1971)"--P. 1.

Ultraviolet disinfection of activated sludge effluent discharging to shellfish waters /

Mode of access: Internet.