||Anaerobic-Aerobic Lagoon Treatment of Dairy Manure Wastes.
Proctor., Donald E. ;
||Washington State Univ., Pullman. Environmental Engineering Section.;Pacific Northwest Environmental Research Lab., Corvallis, Oreg.;Office of Water Resources Research, Washington, D.C.
||FWPCA-WPD-184-01-67; EPA-13040-DFN; W74-11804 ; EPA-660/2-74-030
Industrial waste treatment ;
Agricultural wastes ;
Dairy cattle ;
Waste water ;
Aerobic processes ;
Dairy industry ;
Anaerobic processes ;
Activated sludge process ;
Pacific Northwest U.S ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The removal of manure from dairy cattle confinement areas by improved hydraulic flushing techniques was attempted in conjunction with an attempt to treat the resulting manure slurry in an anaerobic lagoon and activated sludge process. Algae cells were allowed to propagate in the activated sludge process effluent in an attempt to then harvest the cells and accomplish nutrient removal as a final polishing step. While manure could be hydraulically moved by high velocity flushing jets, it resulted in a slurry that was too thick to flow by gravity to catch basins within the cattle confinement areas. The anaerobic lagoon-activated sludge process sequence did accomplish overall pollutional strength reductions as high as 90%.