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2. 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 ...

3. Waste stabilization pond - Wikipedia

   en.wikipedia.org/wiki/Waste_stabilization_pond

   Several types of invertebrates are present in the ponds where they control the population of algae, which then settles to the bottom. [15] Heavy algal growth may block sunlight from penetrating into the pond. This decreases the potential for photosynthesis to contribute oxygen to the pond. [citation needed]

4. 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.

5. Pond - Wikipedia

   en.wikipedia.org/wiki/Pond

   Most ponds experience eutrophication where faced with excessive nutrient input from fertilizers and runoff. This over-nitrifies the pond water and results in mass algae blooms and local fish kills. Some farm ponds are not used for runoff control but rather for livestock like cattle or buffalo as watering and bathing holes. As mentioned in the ...

6. Algal nutrient solution - Wikipedia

   en.wikipedia.org/wiki/Algal_nutrient_solution

   Algae Covered Pond. Algal nutrient solutions are made up of a mixture of chemical salts and seawater. [1] Sometimes referred to as "Growth Media", nutrient solutions (e.g., the Hoagland solution, along with carbon dioxide and light), provide the materials needed for algae to grow.

7. Pesticide - Wikipedia

   en.wikipedia.org/wiki/Pesticide

   Herbicides are commonly applied in ponds and lakes to control algae and plants such as water grasses that can interfere with activities like swimming and fishing and cause the water to look or smell unpleasant. [26] Uncontrolled pests such as termites and mold can damage structures such as houses. [25]