1.

What is the recommended surface loading rate in case of alum floc suspension?

A. 30-70 m<sup>3</sup>/m<sup>2</sup>.d
B. 10-30 m<sup>3</sup>/m<sup>2</sup>.d
C. 70-100 m<sup>3</sup>/m<sup>2</sup>.d
D. <10 m<sup>3</sup>/m<sup>2</sup>.d
Answer» B. 10-30 m<sup>3</sup>/m<sup>2</sup>.d


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