The activated sludge process is a wastewater treatment method that uses air and micro-organisms to break down pollutants. It involves mixing wastewater with micro-organisms and adding air to form clumps called floc. The mixture is then separated in settling tanks, with clean water removed for further treatment. Some of the sludge is reused for maintaining the process, while the rest is combined with other sludge for additional applications like fuel production or composting.
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