Difference between primary and secondary treatment of sewage
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The primary treatment of wastewater occurs through sedimentation with filtering out large contaminant particles within the liquid. The contaminants separate as they are passed through several tanks and other filters. Leftover sludge filters through a digester to suspend solids from the wastewater.
The secondary treatment of wastewater happens through biofiltration, aeration, oxidation ponds and the interaction of waste through these processes.
The secondary treatment of wastewater happens through biofiltration, aeration, oxidation ponds and the interaction of waste through these processes.
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The main difference is the way each respective treatment is processed. Primary treatment works on sedimentation, where solids separate from the water through several different tanks. In contrast, secondary treatment uses aeration, biofiltration and the interaction of waste throughout its process.
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