Environmental Science
8 years ago

Biological pre-filtration boosts surface water treatment performance, ensuring cleaner water.

Journal of Water Supply Research and Technology—AQUA
The effect of biological pre-filtration on the performance of conventional surface water treatment
Gerald Heinicke, Torsten Hedberg, Frank Persson, Malte Hermansson, Wolfgang Uhl

Paper Summary

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The researchers studied how adding biological pre-filtration to conventional surface water treatment affects its performance. They ran tests at a pilot plant mimicking a full-scale treatment plant in Sweden. The treatment process included flocculation, sedimentation, and rapid granular activated carbon filtration. By switching between untreated surface water and biofiltered water weekly, they found that biological pre-filtration improved particle removal and reduced natural organic matter concentrations in the water.