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primary clarifier
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primary clarifier

sanitation engineering
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The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

  • wastewater treatment
    / Primary treatment

    These tanks, also called primary clarifiers, provide about two hours of detention time for gravity settling to take place. As the sewage flows through them slowly, the solids gradually sink to the bottom. The settled solids—known as raw or primary sludge—are moved along the tank bottom by mechanical scrapers.…

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    These tanks, also called primary clarifiers, provide about two hours of detention time for gravity settling to take place. As the sewage flows through them slowly, the solids gradually sink to the bottom. The settled solids—known as raw or primary sludge—are moved along the tank bottom by mechanical scrapers.…

    Read More