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2. Facultative lagoon - Wikipedia

   en.wikipedia.org/wiki/Facultative_lagoon

   Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.

3. Algal nutrient solution - Wikipedia

   en.wikipedia.org/wiki/Algal_nutrient_solution

   He advocated for the integration of algal ponds with wastewater treatment plants as a cost-effective and environmentally friendly method for nutrient removal and biomass production. In the 1950s, Oswald championed the open pond as the most feasible approach to integrate algal cultivation with wastewater treatment. His work in the 1950s and ...

4. Waste stabilization pond - Wikipedia

   en.wikipedia.org/wiki/Waste_stabilization_pond

   After treatment, the effluent may be returned to surface water or reused as irrigation water (or reclaimed water) if the effluent meets the required effluent standards (e.g. sufficiently low levels of pathogens). Waste stabilization ponds involve natural treatment processes which take time because removal rates are slow.

5. Birders, environmental groups alarmed by proposed Lake ... - AOL

   www.aol.com/birders-environmental-groups-alarmed...

   A Northern Pintail is shown feeding on Lake Mattamuskeet in 2016. The Hyde County lake is the proposed site of an algae treatment pilot program that received $5 million in the 2021 North Carolina ...

6. How an algae-infested koi fish pond is deep cleaned - AOL

   www.aol.com/news/algae-infested-koi-fish-pond...

   Grass Roots Pond and Garden has been a family-run water-gardening business in southeast Michigan since 1973. Sam Bates walks us through how he safely relocates koi fish to dewater the pond for a ...

7. Algaecide - Wikipedia

   en.wikipedia.org/wiki/Algaecide

   Barley straw, in England, is placed in mesh bags and floated in fish ponds or water gardens to help reduce algal growth without harming pond plants and animals. Barley straw has not been approved by the United States Environmental Protection Agency (EPA) for use as a pesticide and its effectiveness as an algaecide in ponds has produced mixed results during university testing in the United ...