What shouid the water flow rate be to lift wheal particles?

$d_p=3\mathrm{.}6mm,{}_1=1200k{g}^3,{}_{\text{w}\text{a}\text{t}\text{e}\text{r}}=1{10}^{-3}k\frac{g}{m}s,{}_{\text{w}\text{a}\text{t}\text{e}\text{r}}=1000k\frac{g}{m^3}$