Aeration of sewage lagoons, reservoirs, and streams : citations from the NTIS data base : search period covered, 1964 - March 1976.

Prepared by information specialists at NTIS; Edward J. Lehmann, editor.

Control of odors from anaerobic lagoons treating food processing waste-waters /

Issued July 1978.

Performance of aerated lagoons in northern climates /

"January 1979."

Designing and managing livestock waste lagoons in Illinois /

Cover title.

Periodicity of the blue-green algae and their effect on the efficiency of manure-disposal lagoons /

"In cooperation with National Botanic Gardens Lucknow, India."

A review on the role of duckweed in nutrient reclamation and as a source of animal feed

The family of lemnacae colloquially known as duckweed contains the world's smallest species of flowering plants (macrophytes). Aquatic and free-floating, their most striking qualities are a capacity for explosive reproduction and an almost complete lack of fibrous material. They are widely used for reducing chemical loading in facultative sewage lagoons, but their greatest potential lies in their ability to produce large quantities of protein rich biomass, suitable for feeding to a wide range of animals, including fish, poultry and cattle. Despite these qualities there are numerous impediments to these plants being incorporated into western farming systems. Large genetically determined variations in growth in response to nutrients and climate, apparent anti-nutritional factors, concerns about sequestration of heavy metals and possible transference of pathogens raise questions about the safety and usefulness of these plants. A clear understanding of how to address and overcome these impediments needs to be developed before duckweed is widely accepted for nutrient reclamation and as a source of animal feed.

Mallard Use of Hen HousesTM in Eastern Ontario

Nesting structures for ground-nesting waterfowl may be an effective technique for increasing nesting success in regions in which nest success is below the 15% threshold needed to maintain a stable population. We studied the occupancy rate of artificial nesting structures called hen housesTM by Mallards (Anas platyrhynchos) nesting in two different wetland habitats, beaver ponds and sewage lagoons, in eastern Ontario during 1999–2001. We hypothesized that, because natural cover was sparse on sewage lagoons, Mallards would occupy hen houses at a higher rate on sewage lagoons than on beaver ponds. However, of the 248 hen houses distributed between beaver ponds and sewage lagoons, none was occupied by waterfowl. Common Grackles (Quiscalus quiscula) were the only avian species that nested in hen houses. However, Mallards successfully nested directly under several structures (n = 6) when water levels were low enough to expose the ground beneath them. Mayfield daily nest survival estimates for Mallards nesting in natural cover were similar on sewage lagoons and beaver ponds for all years (mean = 0.99) and were higher than most published estimates. Factors such as nesting cover, predation pressures, and structure design and material may influence the use of artificial hen houses and should be considered when planning a hen house program outside of the Prairie Pothole Region.

Performance evaluation of existing aerated lagoon system at Bixby, Oklahoma /

Mode of access: Internet.

Waste stabilization lagoon microorganism removal efficiency and effluent disinfection with chlorine /

Mode of access: Internet.

Performance evaluation of existing aerated lagoon system at Consolidated Koshkonong Sanitary District, Edgerton, Wisconsin /

Mode of access: Internet.

Combined sewer overflow treatment by screening and terminal ponding : Fort Wayne, Indiana /

Mode of access: Internet.

Samplers and sampling procedures for hazardous waste streams /

Mode of access: Internet.

Performance evaluation of the aerated lagoon system at North Gulfport, Mississippi /

Mode of access: Internet.

Wastewater stabilization lagoon : intermittent sand filter systems /

Mode of access: Internet.