Reference Terms
from Wikipedia, the free encyclopedia
Activated sludge
Activated sludge is a process in sewage treatment in which air or oxygen is forced into sewage liquor to develop a biological floc which reduces the organic content of the sewage.
Note: The above text is excerpted from the Wikipedia article "Activated sludge", which has been released under the GNU Free Documentation License.
Related Stories
1
2
Earth & Climate News
November 20, 2024
Nov. 18, 2024 — A newly discovered pterosaur fossil is shedding light on the evolutionary journey of these ancient flying reptiles. This complete specimen, named Skiphosoura bavarica, provides crucial insights into how pterosaurs transitioned from early, smaller ...
Nov. 13, 2024 — How much land, water, and other resources does our lifestyle require? And how can we adapt this lifestyle to stay within the limits of what the Earth can give? A new article tackles these ...
Nov. 12, 2024 — Global carbon emissions from fossil fuels have reached a record high in 2024, according to new ...
Nov. 12, 2024 — Roughly 90 million years ago, climatic conditions in Antarctica were suitable for resin-producing trees. Researchers have now made the southernmost discovery of amber in the ...
Latest Headlines
updated 12:56 pm ET
Nov. 20, 2024 — Residential garden produce grown near the Fayetteville Works fluorochemical plant can expose those who consume it to per- and polyfluoroalkyl ...
Nov. 20, 2024 — Dairy cows typically rest for 10 or more hours a day, so a dry, clean, and comfortable place -- such as a freestall -- to lie down and rest is ...
Nov. 20, 2024 — Typically, closely related animal species have difficulty coexisting because they are competing for similar resources. Despite eating the same figs, ...
Nov. 20, 2024 — Mortality attributable to air pollution and extreme temperatures is a major concern, and it is expected to heighten in the future. An international ...
Nov. 20, 2024 — Scientists discovered a stretch of DNA in both C3 plants, like wheat and soybeans, and C4 plants, like corn and sorghum, that is responsible for ...
Nov. 19, 2024 — Researchers have created a method that uses artificial intelligence to more accurately predict short-term river discharge using historical data from ...
Nov. 20, 2024 — Chemists have developed a novel way to capture and convert carbon dioxide into methane, suggesting that future gas emissions could be converted into an alternative fuel using electricity from ...
Nov. 12, 2024 — Migratory birds are known for their ability to traverse thousands of kilometres to reach their breeding or wintering grounds. Research found that these birds, in this case, Eurasian reed warblers ...
Nov. 12, 2024 — Herbal medicine is difficult to produce on an industrial scale. A team of bioengineers have now manipulated the cellular machinery in a species of yeast so that one such molecule can now be produced ...
Nov. 12, 2024 — Up to two thirds of the world's temperate rainforests could fall victim to climate change by the year 2100 according to a new ...