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2. Shade ball - Wikipedia

   en.wikipedia.org/wiki/Shade_ball

   Shade balls in the Ivanhoe Reservoir, 2015. Starting in mid-2009, the Los Angeles Department of Water and Power (LADWP) put about 400,000 balls in the Ivanhoe reservoir with the main objective of preventing the formation of a carcinogenic chemical, bromate, which forms when sunlight interacts with naturally occurring bromine and the chlorine added to prevent algae growth.

3. 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 ...

4. Waste stabilization pond - Wikipedia

   en.wikipedia.org/wiki/Waste_stabilization_pond

   In most ponds both bacteria and algae are needed in order to maximize the decomposition of organic matter and the removal of other pollutants. [15] Algae produce oxygen (photosynthesis) and also consume oxygen (respiration), but they leave an excess of oxygen that can then be used by aerobic bacteria for respiration and for the processes of ...

5. 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 ...

6. 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.

7. Black sludge, invasive seaweed, toxic algae: Cape Cod pond ...

   www.aol.com/black-sludge-invasive-seaweed-toxic...

   Black sludge, invasive seaweed, toxic algae: Cape Cod pond, coastal waters get poor marks. Gannett. Heather McCarron, Cape Cod Times. January 20, 2024 at 5:12 AM.