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2. Algaculture - Wikipedia

   en.wikipedia.org/wiki/Algaculture

   In this system, algae can be cultivated in natural water bodies like lakes, rivers, and in oceans, as well as artificial ponds made up of concrete, plastic, pond liners or variety of materials. The open system of algae cultivation is simple and cost-effective, making it an attractive option for commercial production of algae-based products.

3. Aquascaping - Wikipedia

   en.wikipedia.org/wiki/Aquascaping

   Algae is most commonly caused by an excess of nutrients and waste, so aquarists will perform water changes to lower the nitrates present. [46] Another method is the use of animals that consume algae , such as some fish (notably cyprinids of the genera Crossocheilus and Gyrinocheilus , and catfish of the genera Ancistrus , Hypostomus , and ...

4. Harmful algal bloom - Wikipedia

   en.wikipedia.org/wiki/Harmful_algal_bloom

   Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means.

5. Mercury in fish - Wikipedia

   en.wikipedia.org/wiki/Mercury_in_fish

   Bag-based filters are also used in factories that may contribute mercury to the environment. Flue-gas desulfurization , normally used to eliminate sulfur dioxide , can also be used in conjunction with APCDs to remove additional mercury before exhausts are released into the environment. [ 1 ]

6. Microplastics - Wikipedia

   en.wikipedia.org/wiki/Microplastics

   Wastewater treatment plants only remove an average of 95–99.9% of microbeads because of their small design. This leaves an average of 0–7 microbeads per litre being discharged. [102] Considering that the treatment plants of the world discharge 160 trillion liters of water per day, around 8 trillion microbeads are released into waterways ...

7. Swimming pool - Wikipedia

   en.wikipedia.org/wiki/Swimming_pool

   This is an accepted version of this page This is the latest accepted revision, reviewed on 15 December 2024. Artificial water basin for swimming For other uses, see Swimming pool (disambiguation). Backyard swimming pool Olympic-size swimming pool and starting blocks at Melbourne Sports and Aquatic Centre used for the 2006 Commonwealth Games in Melbourne, Australia A swimming pool, swimming ...