What distinguishes the activated sludge process developed in the early 20th century?
Answer
It involves keeping active microbial cultures suspended in wastewater through aeration
The activated sludge process, which emerged around 1914, modernized wastewater treatment by creating a highly efficient environment for microbial activity. By using aeration to keep active microbial cultures suspended directly in the wastewater, the process brings bacteria into constant, intimate contact with organic pollutants. This allows for significantly higher treatment efficiency and enables the construction of much smaller treatment tanks, making it ideal for space-constrained urban areas.
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