1.

For rock type of packing in intermediate filtration trickling filters what is the hydraulic rate considered?

A. 4-10 m<sup>3</sup>/m<sup>2</sup>.d
B. 10-15 m<sup>3</sup>/m<sup>2</sup>.d
C. 20-25 m<sup>3</sup>/m<sup>2</sup>.d
D. 25-30 m<sup>3</sup>/m<sup>2</sup>.d
Answer» B. 10-15 m<sup>3</sup>/m<sup>2</sup>.d


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